Катализатор совместной гидроочистки смеси растительного и нефтяного углеводородного сырья и способ его приготовления

Изобретение относится к массивному катализатору совместной гидроочистки смеси растительного и нефтяного углеводородного сырья и способу его приготовления. Данный катализатор включает в свой состав молибден в количестве 55-65,0% мас., серу в количестве 30-45% мас. и углерод в количестве 0-5,0% мас. Катализатор имеет удельную поверхность 50-150 м/г, удельный объем пор 0,1-0,5 см/г. Предлагаемый катализатор позволяет проводить совместную гидроочистку смеси растительного и нефтяного углеводородного сырья. Изобретение также относится к способу приготовления массивного катализатора совместной гидроочистки смеси растительного и нефтяного углеводородного сырья, который включает следующие стадии: однократную пропитку пористого носителя по влагоемкости водным раствором соединения молибдена с последующей сушкой, сульфидированием и вытравливанием носителя плавиковой кислотой. Технический результат - увеличение активности катализатора в процессе совместной гидроочистки смеси растительного и нефтяного ...

НОСИТЕЛЬ КАТАЛИЗАТОРА, КАТАЛИЗАТОР И ЕГО ПРИМЕНЕНИЕ

... 1. Носитель катализатора, содержащий по меньшей мере 85 масс. процентов альфа-оксида алюминия, по меньшей мере 0,06 мас.% SiOи не более 0,04 мас.% NaO, обладающий водопоглощением не более 0,35 грамм воды/грамм носителя и отношением водопоглощения (грамм воды/грамм носителя) к площади поверхности (мносителя/грамм носителя) не более 0,50 грамм воды/мносителя.2. Носитель по п. 1, отличающийся тем, что содержание SiOне превышает 0,40 мас.%.3. Носитель по п. 1, отличающийся тем, что содержание SiOне превышает 0,30 мас.%.4. Носитель по п. 1, отличающийся тем, что содержание NaO не превышает 0,03 мас.%.5. Носитель по п. 1, отличающийся тем, что содержит по меньшей мере 0,15 мас.% SiO.6. Носитель по п. 1, отличающийся тем, что указанное отношение не превышает 0,45 г/м.7. Носитель по п. 1, отличающийся тем, что указанное отношение не превышает 0,40 г/м.8. Носитель по п. 1, отличающийся тем, что указанное водопоглощение не превышает 0,30 г/г.9. Носитель по п. 8, отличающийся тем, что указанная площадь ...

КАТАЛИТИЧЕСКАЯ СИСТЕМА И СПОСОБ ГИДРОПЕРЕРАБОТКИ ТЯЖЕЛЫХ МАСЕЛ

... 1. Каталитическая система, применяемая для гидропереработки тяжелых масел, отличающаяся тем, что она включает: ! а. катализатор, имеющий функцию катализатора гидрирования, содержащий МоS2 или WS2 или их смеси в форме пластинок, или их маслорастворимый предшественник; ! b. сокатализатор, включающий частицы наноразмеров или микронных размеров, выбранный из катализаторов крекинга и/или денитрификации. ! 2. Каталитическая система по п.1, в которой сокатализатор состоит из цеолитов, имеющих кристаллы небольших размеров и низкую степень агрегации первичных частиц, и/или оксидов или сульфидов, или предшественников сульфидов Ni, и/или Со, в смеси с Мо и/или W. !3. Каталитическая система по п.2, в которой цеолиты выбраны из группы, включающей цеолиты с промежуточными или крупными размерами пор. ! 4. Каталитическая система по п.3, в которой цеолиты с промежуточными или крупными размерами пор выбраны из бета-цеолита, цеолита Y и МСМ-22. ! 5. Каталитическая система по п.2, в которой сокатализатор, ...

САМОАКТИВИРУЮЩИЙСЯ КАТАЛИЗАТОР ГИДРООБРАБОТКИ, ОБЛАДАЮЩИЙ ПОВЫШЕННОЙ АКТИВНОСТЬЮ И СВОЙСТВАМИ САМОАКТИВАЦИИ, И ЕГО ИСПОЛЬЗОВАНИЕ ДЛЯ ОБРАБОТКИ ОСТАТОЧНОГО СЫРЬЯ

КОМПЛЕКС СОЕДИНЕНИЯ МЕТАЛЛА - ОКСИДА ГРАФЕНА

КАТАЛИТИЧЕСКАЯ СИСТЕМА И СПОСОБ ПОЛНОЙ ГИДРОПЕРЕРАБОТКИ ТЯЖЕЛЫХ НЕФТЕЙ

... 1. Каталитическая система, которую можно использовать для гидропереработки тяжелых нефтей, отличающаяся тем, что она включает в себя:- первый катализатор, имеющий функцию гидрирования, состоящий из твердых частиц, из которых, по меньшей мере, 95% по объему имеют эквивалентный диаметр меньше, чем 20 мкм, предпочтительно, меньше, чем 10 мкм, более предпочтительно, меньше, чем 5 мкм, содержащий один или более сульфидов металлов VI группы и/или группы VIIIB;- и второй катализатор с функцией крекинга, состоящий из твердых частиц, из которых, по меньшей мере, 90% по объему имеют эквивалентный диаметр больше, чем 5 мкм и меньше, чем 5 мм, предпочтительно, больше, чем 10 мкм и меньше, чем 1 мм, более предпочтительно, больше, чем 20 мкм и меньше, чем 0,8 мм, содержащий аморфный алюмосиликат и/или кристаллический алюмосиликат, и/или оксид алюминия,при этом средний эквивалентный диаметр твердых частиц второго катализатора является большим, чем средний эквивалентный диаметр твердых частиц первого катализатора ...

СПОСОБЫ И СИСТЕМЫ ВОДОРОДООБРАБОТКИ И СПОСОБЫ УЛУЧШЕНИЯ СУЩЕСТВУЮЩЕЙ СИСТЕМЫ С НЕПОДВИЖНЫМ СЛОЕМ

... 1. Способ улучшения существующей системы водородообработки с неподвижным слоем, который содержит: (а) работу существующей системы водородообработки с неподвижным слоем, содержащей один или более реакторов с неподвижным слоем, каждый из которых содержит жидкую углеводородную фазу, слой пористого катализатора на носителе в качестве твердой фазы и водородный газ в качестве газообразной фазы; (b) получение тяжелого нефтяного сырья непосредственным смешением композиции предшественника катализатора с тяжелым нефтяным сырьем таким образом, что коллоидный или молекулярный катализатор образуется, когда тяжелое нефтяное сырье нагревается выше температуры разложения композиции предшественника катализатора; (с) образование коллоидного или молекулярного катализатора in situ в тяжелом нефтяном сырье; (d) введение тяжелого нефтяного сырья со стадии (b) необязательно после стадии (с), по меньшей мере, в одно из следующего: один или более реакторов с неподвижным слоем существующей системы водородообработки ...

СПОСОБ ПОЛУЧЕНИЯ КАТАЛИЗАТОРА ГИДРОПЕРЕРАБОТКИ НЕФТЯНЫХ ФРАКЦИЙ

Способ получения массивного катализатора гидропереработки тяжелых нефтяных фракций на основе молибдена, отличающийся тем, что в качестве исходного реагента берут крупнодисперсный коммерческий порошок дисульфида молибдена, который подвергают механоактивации в присутствии микродобавок метанола в инертной среде в течение 5-8 часов.

Water-gas shift catalyst

A water-gas shift catalyst

A catalyst precursor for preparing a catalyst suitable for use in a sour water-gas shift process comprises 5 to 30% by weight of a catalytically active metal oxide selected from tungsten oxide and molybdenum oxide; 1 to 10% by weight of a promoter metal oxide selected from cobalt oxide and nickel oxide; and 1 to 15% by weight of an oxide of an alkali metal selected from sodium, potassium and caesium; supported on a titania catalyst support. The precursor can be sulphided with hydrogen sulphide. The catalyst can be used in a water-gas shift process comprising contacting synthesis gas comprising hydrogen, steam, carbon monoxide and carbon dioxide including one or more sulphur compounds, and wherein the steam to carbon monoxide molar ratio in the synthesis gas is in the range 0.5 to 1.8:1.

CATALYTIC SYSTEM AND PROCESS FOR THE TOTAL HYDROCONVERSION OF HEAVY OILS

Catalytic system and process for the total hydroconversion of heavy oils

Catalytic system and process for the total hydroconversion of heavy oils

Catalytic system and process for the total hydroconversion of heavy oils

SYNTHESIS OF PRECIOUS METAL SULFIDE CATALYSTS IN A SULFIDE-ION-FREE AQUEOUS ENVIRONMENT

System and method for pretreatment of solid carbonaceous material

CATALYSTS FOR HYDRODEMETALLATION AND HYDRODESULFURIZATION AND IMPLEMENTATION IN A LINKING PROCESS IN A SINGLE FORMULATION

CATALYST FOR THE SYNTHESIS OF METHYL MERCAPTAN AND PROCESS FOR PRODUCING METHYL MERCAPTAN FROM SYNTHESIS GAS AND HYDROGEN SULPHIDE

L 'invention porte sur un catalyseur comprenant un composant actif à base de molybdène et de potassium et un support à base d' hydroxyapatite, ainsi que sur un procédé de préparation dudit catalyseur et un procédé de production de méthyl mercaptan dans un procédé catalytique par réaction d' oxyde de carbone, de soufre et/ou de sulfure d'hydrogène et d 'hydrogène, comprenant l 'utilisation dudit catalyseur.

SLURRY HYDROCONVERSION OF BIORENEWABLE FEEDSTOCKS

A method for hydroconversion of a combined feed of at least one low value petroleum derived hydrocarbon and at least one biorenewable feedstock in a hydroconversion reaction zone in the presence of a hydroconversion catalyst at hydroconversion reaction conditions for a period of time sufficient to form a hydroconversion reaction product.

HYDROCONVERSION MULTI-METALLIC CATALYSTS AND METHOD FOR MAKING THEREOF

The invention relates to a self-supported mixed metal sulfide (MMS) catalyst for hydrotreating hydrocarbon feedstock and to a method for preparing the catalyst. The catalyst can be any of: a bi-metallic catalyst consisting essentially of nickel sulfide and tungsten sulfide, with Ni:W in a mole ratio of 1:3 to 4:1, on a transition metal basis; a bi-metallic catalyst consists essentially of molybdenum sulfide and tungsten sulfide, with at least 0.1 mol% of Mo and at least 0.1 mol% of W, on a transition metal basis; or a tri-metallic catalyst ratios with components Ni:Mo:W in a region defined by five points ABCDE of a ternary phase diagram: A (Ni=0.72, Mo=0.00, W=0.25), B (Ni=0.25, Mo=0.00, W=0.75), C (Ni=0.25, Mo=0.25, W=0.50), D (Ni=0.60, Mo=0.25, W=0.15), E (Ni=0.72, Mo=0.13, W=0.15). The catalyst is characterized as having multiple phases for enhanced HYD and HYL activities, and outstanding HDN and HDS performance.

METHODS FOR LOWERING THE NITROGEN OXIDES CONTENT OF EXHAUST GASES

Catalytic cracking or selective contact reduction of NOx in exhaust gases is improved in these known processes by use of a Chevrel phase compound as the catalyst. The catalytic compounds have the formula Mx Mo6 S8-y and/or Mx Mo6 S8-y Oz, where M is metal, S is chalcogen, O is oxygen, x is 1-5, 8-y is 7.4-8.5 and z is from 2 to 8.

DISPERSED METAL SULFIDE CATALYSTS FOR HYDROPROCESSING

The present invention is directed toward a catalyst composition comprising a catalyst prepared by a process comprising: (a) impregnating an oxide precursor selected from the group consisting of rare earth oxide precursors, yttria precursors and mixtures thereof, onto an inorganic refractory oxide support; (b) drying said support at a temperature of about 100 to about 120 ~C followed by calcining said support at a temperature of about 400 to about 600 ~C; and (c) compositing or depositing on said support of step (b), a catalyst precursor salt represented by (ML)(MoyW1-yO4)a wherein M comprises Cr and/or one or more divalent promoter metals selected from the group consisting of Mn, Fe, Co, Ni, Cu, Zn and mixtures thereof, wherein y is any value ranging from 0 to 1, and wherein L is one or more neutral, nitrogen-containing ligands at least one of which is a chelating polydentate ligand; a = 1 when chromium is not one of the promoter metals and 0.5 <= a <= 3 when Cr is one of the promoter metals ...

СПОСОБ РЕЦИРКУЛЯЦИИ АКТИВНОЙ КАТАЛИТИЧЕСКОЙ КОМПОЗИЦИИ В ВИДЕ СУСПЕНЗИИ, СЛУЖАЩЕЙ ДЛЯ УЛУЧШЕНИЯ КАЧЕСТВА ТЯЖЕЛОЙ НЕФТИ

Настоящее изобретение направлено на осуществление способа гидропереработки тяжелых нефтей, в котором применяют каталитическую композицию в виде суспензии. Каталитической композиции в виде суспензии не дают возможности оседать, что могло бы привести к возможной дезактивации. Суспензию рециркулируют для повторного использования в реактор переработки и продукты не требуют никаких дальнейших процедур по их разделению с целью удаления катализатора.

REACTOR WITH ENRICHED BOILING LAYER, USED WITH RAW MATERIAL QUALITY OF DAMAGED

Fine-particle composite, process for producing fine-particle composite, catalyst for solid polymer electrolyte fuel cell, and solid polymer electrolyte fuel cell

PROCESS Of HYDROCONVERSION IN SLURRY OF HEAVY HYDROCARBON LOADS IN THE PRESENCE OF an ACTIVE PHASE DISPERSEE AND Of an OXIDE CONTAINING ALUMINA.

ESTERIFICATION PROCESS

METHOD FOR REDUCING CARBON DIOXIDE PHOTOCATALYTIC WORK INVOLVING A PHOTOCATALYST BASED ON MOLYBDENUM SULFIDE OR SULFIDE TUNGSTEN SUPPORTS

METHOD FOR PRODUCING HYDROGEN SULFIDE IN CIRCULATING CATALYST BED REACTOR

La présente invention a pour objet un procédé de production de sulfure d'hydrogène à partir d'hydrogène et de soufre élémentaire, comprenant les étapes suivantes : (a) La mise en contact du soufre avec un catalyseur solide comprenant au moins un métal choisi parmi les métaux des groupes VIB et VIII de la Classification Périodique des Eléments, à une température allant de 120 à 160°C ; (b) La circulation du mélange de soufre et de catalyseur issu de l'étape (a) dans une zone réactionnelle, dans laquelle ledit mélange est mis en contact avec de l'hydrogène, la zone réactionnelle présentant une température au point d'entrée du catalyseur supérieure ou égale à 150°C et une température au point de sortie du catalyseur inférieure ou égale à 300°C, et une pression inférieure ou égale à 3 bars ; (c) La séparation du catalyseur et des effluents gazeux contenant de l'hydrogène sulfuré ; et (d) Le recyclage du catalyseur vers l'étape (a).

A METHOD OF CONVERTING EFFLUENTS OF RENEWABLE ORIGIN INTO FUEL OF EXCELLENT QUALITY BY USING A MOLYBDENUM-BASED CATALYST

... 본 발명은 VIB족 원소가 몰리브덴인, 황 함유 VIB족 원소로 구성된 활성상을 포함하는 담지형 또는 비담지형 촉매, 및 본 발명에 따른 촉매를 사용하여, 수소화탈산소화 생성물의 수율이 재생가능 공급원 유래의 충전물의 90% 이상인 수소화탈산소화 방법에 관한 것이다.

저품질 탄화수소질 공급원료의 수소첨가전환 방법

... 본 발명은 슬러리 촉매 조성물을 사용하는 저품질 탄소질 공급원료의 업그레이드 방법에 관한 것이다. 분산된 활성 촉매에 대한 전구체로서 특정 유기금속 화합물의 사용은 코크스 형성 감소를 가능하게 한다.

촉매 제조 방법

... 본 발명은 몰리브덴 설파이드를 포함하는 촉매용 전구체로서의 몰리브덴 카복실레이트의 용도, 뿐만 아니라 이러한 촉매를 제조하는 방법에 관한 것이다. 본 발명은 또한 특정 몰리브덴 카복실레이트에 관한 것이다.

Hydrocarbon-soluble molybdenum catalyst percursors and methods for making same

Hydrocarbon-soluble molybdenum catalyst precursors include a plurality of molybdenum cations that are each bonded with a plurality of organic anions to form an oil soluble molybdenum salt. A portion of the molybdenum atoms are in the 3+ oxidation state such that the plurality of molybdenum atoms has an average oxidation state of less than 4+, e.g., less than about 3.8+, especially less than about 3.5+. The catalyst precursors can form a hydroprocessing molybdenum sulfide catalyst in heavy oil feedstocks. The oil soluble molybdenum salts are manufactured in the presence of a reducing agent, such as hydrogen gas, to obtain the molybdenum in the desired oxidation state. Preferably the reaction is performed with hydrogen or an organic reducing agent and at a temperature such that the molybdenum atoms are reduced to eliminate substantially all molybdenum oxide species.

METHODS FOR PROMOTING SYNGAS-TO-ALCOHOL CATALYSTS

The present invention provides methods of intercalating a catalyst promoter to form a catalyst composition suitable for converting syngas into alcohols, such as ethanol. Effective conditions for promoter intercalation are provided herein. This invention also provides novel compositions that can be characterized by interplanar spacings of the promoter within the catalyst composition.

IMPROVED PROCESS FOR SYNTHESIS OF MOLYBDENUM SULFIDE-BASED CATALYSTS

A process for preparing a molybdenum sulfide-based catalyst comprises drying a precipitated molybdenum sulfide-based catalyst precursor, for example, a wet filter cake, such that a particulate catalyst precursor, containing from 12 to 15 percent by weight water, is formed. The particulate catalyst precursor is desirably in the form of free-flowing particles. The particulate catalyst precursor is then auto-reduced. A rotary furnace that subjects the catalyst precursor to at least two zones having distinct temperatures may be conveniently used for drying, auto-reduction, or both. The staged drying and auto-reduction steps reduce the tendency of the precursor to self-heat, which is undesirable because it reduces both the activity and selectivity of the final catalyst.

PROCESS FOR TREATING A HYDROCARBON-CONTAINING FEED

A process for treating a hydrocarbon-containing feedstock is provided in which a hydrocarbon-containing feedstock comprising at least 20 wt.% of heavy hydrocarbons is mixed with hydrogen, hydrogen sulfide and a metal-containing catalyst at a temperature of 375°C to 500°C and a pressure of from 6.9 MPa to 27.5 MPa to produce a vapor comprising a first hydrocarbon-containing product, where the hydrogen sulfide is mixed with the feedstock, metal-containing catalyst, and hydrogen at a mole ratio of hydrogen sulfide to hydrogen of at least 1:10. The vapor comprising the first hydrocarbon-containing product is separated from the mixture, and, apart from the mixture, the first hydrocarbon-containing product is contacted with hydrogen and a catalyst containing a Column 6 metal at a temperature of 260°C-425°C and a pressure of from 3.4 MPa to 27.5 MPa to produce a second hydrocarbon-containing product.

Hydroprocessing catalysts and methods for making thereof

An improved hydroprocessing slurry catalyst is provided for the upgrade of heavy oil feedstock. The catalyst comprises dispersed particles in a hydrocarbon medium with the dispersed particles have an average particle size ranging from 1 to 300 μm. The catalyst has a total pore volume of at least 0.5 cc/g and a polymodal pore distribution with at least 80% of pore sizes in the range of 5 to 2,000 Angstroms in diameter. The catalyst is prepared from sulfiding and dispersing a metal precursor solution in a hydrocarbon diluent, the metal precursor comprising at least a Primary metal precursor and optionally a Promoter metal precursor, the metal precursor solution having a pH of at least 4 and a concentration of less than 10 wt. % of Primary metal in solution.

Doped carbonaceous materials for photocatalytic removal of pollutants under visible light, making methods and applications of same

A method of synthesizing a doped carbonaceous material includes mixing a carbon precursor material with at least one dopant to form a homogeneous/heterogeneous mixture; and subjecting the mixture to pyrolysis in an inert atmosphere to obtain the doped carbonaceous material. A method of purifying water includes providing an amount of the doped carbonaceous material in the water as a photocatalyst; and illuminating the water containing the doped carbonaceous material with visible light such that under visible light illumination, the doped carbonaceous material generates excitons (electron-hole pairs) and has high electron affinity, which react with oxygen and water adsorbed on its surface forming reactive oxygen species (ROS), such as hydroxyl radicals and superoxide radicals, singlet oxygen, hydrogen peroxide, that, in turn, decompose pollutants and micropollutants.

НАНОКАТАЛИЗАТОР И СПОСОБ ДЛЯ УДАЛЕНИЯ СОЕДИНЕНИЙ СЕРЫ ИЗ УГЛЕВОДОРОДОВ

Изобретение относится к наноструктурированной каталитической системе для удаления меркаптанов и/или сероводорода из углеводородных газовых смесей, содержащей:(а) одно каталитическое вещество, причем это каталитическое вещество является металлом в элементной форме или оксидом металла, или сульфидом металла, который выбирают из группы, состоящей из Na, V, Mn, Mo, Cd, W,(b) наноструктурированную подложку, причем материал для подложки выбирают из группы, состоящей из однослойных углеродных нанотрубок, двухслойных углеродных нанотрубок, многослойных углеродных нанотрубок, нанопористого углерода, углеродных нановолокон или их смесей, в которой одно каталитическое вещество нанесено на наноструктурированную подложку в количестве от 0,05% (масса/масса) до 9% (масса/масса) относительно суммарной массы каталитической системы, причем эта каталитическая система не содержит второго или любого другого каталитического вещества. Изобретение также относится к способу удаления меркаптанов и сероводорода из ...

СИНТЕЗ КАТАЛИЗАТОРОВ НА ОСНОВЕ СУЛЬФИДОВ БЛАГОРОДНЫХ МЕТАЛЛОВ В ВОДНОЙ СРЕДЕ, НЕ СОДЕРЖАЩЕЙ СУЛЬФИД-ИОНОВ

Изобретение относится к способу получения электрокатализатора на основе сульфида благородного металла. Описан способ получения электрокатализатора на основе сульфида благородного металла, включающий стадии: взаимодействие раствора предшественника, по меньшей мере, одного благородного металла, с водным раствором, содержащим тионовое соединение, в среде, по существу не содержащей сульфид-ионов, причем указанный раствор предшественника содержит частицы углерода, включающий выделение образовавшего катализатора и термическую обработку выделенного катализатора. Техническим результатом настоящего изобретения является разработка способа получения катализаторов на основе сульфидов благородных металлов в водной среде без использования высоко горючих и высоко токсичных соединений. 11 з.п.ф-лы.

СПОСОБ ПОЛУЧЕНИЯ КАТАЛИЗАТОРА ГИДРОПЕРЕРАБОТКИ НЕФТЯНЫХ ФРАКЦИЙ

Изобретение относится к области нефтепереработки, в частности к способу получения высокодисперсного массивного сульфидного катализатора для гидропереработки нефтяных фракций. Заключается в том, что в качестве исходного реагента берут крупнодисперсный коммерческий порошок дисульфида молибдена, который подвергают механоактивации в присутствии микродобавок метанола в инертной среде в течение 5-8 часов. Технический результат изобретения состоит в упрощении технологического процесса, сокращении количества стадий синтеза катализатора до одной, при этом катализатор обеспечивает конверсию дибензотиофена на уровне не ниже 99,99%, содержание остаточной серы не превышает 1-2 ррм. 1 табл., 3 ил., 4 пр.

КАТАЛИЗАТОР ГИДРИРОВАНИЯ, СПОСОБ ЕГО ПОЛУЧЕНИЯ И ЕГО ПРИМЕНЕНИЕ

Настоящее изобретение относится к катализатору гидрирования, более конкретно к катализатору гидрирования нефтепродуктов. Описан катализатор гидрирования, содержащий носитель катализатора гидрирования и активный компонент гидрирования, где указанный активный компонент гидрирования содержит сульфид металла группы VIB и соединение металла группы VIII, и молярное отношение частиц указанного металла группы VIII, взаимодействующих с указанным металлом группы VIB, к общему количеству указанного металла группы VIII составляет 60-100%, где указанное взаимодействие выбирается из примыкания, наслаивания, покрытия, нанесения, прилипания, смешивания, вкрапления, обертывания или любого их сочетания. Способ получения указанного катализатора гидрирования включает в себя следующие стадии: (1) пропитывание носителя катализатора гидрирования пропиточным раствором, содержащим металл группы VIB, а затем сушку и сульфуризацию для получения сульфурированного материала; и (2) пропитывание сульфуризированного материала ...

СПОСОБ ПОЛУЧЕНИЯ НАНОЧАСТИЦ ДИСУЛЬФИДА МОЛИБДЕНА НА НОСИТЕЛЕ ИЗ ДИОКСИДА ТИТАНА

Изобретение относится к способу получения наночастиц MoS2, на носителе из TiO2, в котором получение осуществляют восстановительным соосаждением с использованием водных растворов, содержащих соли-предшественники Ti и Mo, при этом соли-предшественники Ti и Mo представляют собой TiCl3 и (NH4)2MoS4 соответственно, причем получение осуществляют в одну стадию непосредственно из раствора соответствующих солей металлов TiCl3и (NH4)2MoS4, при этом получение проводят в кислых условиях при рН в диапазоне от 3 до 4 и в процессе получения добавляют хелатирующий агент, выбранный из ЭДТА или лимонной кислоты, и в котором MoS2 может быть непромотированным или промотированным Co. Также раскрывается способ наночастиц MoS2, на носителе из TiO2, в котором получение проводят в две стадии из дисперсии предшественника носителя TiO2-x в растворе (NH4)2MoS4, при этом предшественник носителя TiO2-x готовят перед введением соли (NH4)2MoS4. Кроме того, изобретение относится к применению указанных наночастиц в качестве ...

Катализаторы гидроочистки и способ получения указанных катализаторов

Изобретение относится к области гетерогенного катализа, в частности к способу получения смешанного оксида, содержащего Ni, Mo, W, Al, возможно, по меньшей мере один металл Ме и органический компонент С или остаток указанного органического компонента С, имеющего следующую формулу (I):в которой Ме выбирают из группы, состоящей из Zn, Cd и их смеси, С содержит полимерное органическое соединение, а больше или равно 0, b, c, d, e и f больше 0, f равно (2a+2b+6c+6d+3e)/2, отношение (a+b)/(c+d) составляет от 0,9 до 1,1, отношение a/b больше или равно 0 и меньше или равно 1,5, отношение c/d составляет от 0,2 до 5, отношение (a+b+c+d)/e составляет от 0,6 до 5, и р является массовой процентной долей С по отношению к общей массе смешанного оксида формулы (I) и она больше 0% и меньше или равна 40%. Причем указанный смешанный оксид формулы (I) содержит аморфную фазу и псевдокристаллическую фазу, изоструктурную вольфрамиту, где указанный способ включает следующие стадии: 1) смешивание по меньшей мере ...

Способ приготовления катализатора гидроочистки сырья гидрокрекинга

Изобретение относится к способам приготовления катализаторов гидроочистки нефтяных фракций с температурой начала кипения выше 360°С для получения сырья с низким содержанием серы и азота, которое далее перерабатывается в процессе гидрокрекинга. Описан способ приготовления катализатора, заключающийся в пропитке носителя, который содержит, мас. %: борат алюминия AlBOсо структурой норбергита - 5,0-25,0; натрий - не более 0,03; γ-AlO- остальное, водным раствором биметаллического комплексного соединения [Ni(HO)][MoO(CHO)] с последующей сушкой. Катализатор содержит, мас. %: [Ni(НО)][MoO(CHO)] 29,0-36,0%; носитель - остальное. Используют пропитку носителя по влагоемкости либо из избытка раствора, при этом пропитку проводят при температуре 20-80°С в течение 20-60 мин при периодическом перемешивании. После пропитки катализатор сушат на воздухе при температуре 100-200°С. Катализатор имеет удельную поверхность 130-180 м/г, объем пор 0,35-0,65 см/г, средний диаметр пор 10-15 нм и представляет собой ...

Катализатор гидроочистки углеводородного сырья

Изобретение относится к катализаторам получения нефтяных дистиллятов с низким содержанием серы. Описан катализатор, содержащий, мас. %: [Со(HO)(CHO)][MoO(CHO)] 33,0-43,0%; носитель - остальное; при этом носитель содержит, мас. %: борат алюминия AlBOсо структурой норбергита - 5,0-25,0; натрий - не более 0,03; γ-AlO- остальное. Входящий в состав катализатор борат алюминия AlBOсо структурой норбергита представляет собой частицы с размерами от 10 до 200 нм, характеризующиеся межплоскостными расстояниями 3.2 и 2.8 А, с углом между ними 53.8°. Катализатор имеет удельную поверхность 130-180 м/г, объем пор 0,35-0,65 см/г, средний диаметр пор 7-12 нм и представляет собой частицы с сечением в виде круга, трилистника или четырехлистника с диаметром описанной окружности 1,0-1,6 мм и длиной до 20 мм. После сульфидирования по известным методикам катализатор содержит, мас. %: Мо - 10,0-14,0; Со - 3,0-4,3; S - 6,7-9,4; носитель - остальное. Технический результат - получение катализатора, имеющего максимальную ...

КАТАЛИЗАТОР ГИДРОПЕРЕРАБОТКИ НЕФТЯНЫХ ФРАКЦИЙ (ВАРИАНТЫ)

Изобретение относится к производству катализаторов для гидропереработки нефтяных фракций, в том числе обессеривания, гидрогенизации и гидродеароматизации. Предложен катализатор гидропереработки нефтяных фракций, полученный in situ путем термического разложения в углеводородном сырье - нефтяных фракциях - прекурсора, анион которого представляет собой никель-тиовольфрамат, или кобальт-тиовольфрамат, или никель-тиомолибдат, или кобальт-тиомолибдат. Катион прекурсора представляет собой ион [RR'R''S], где R, R' и R'' - в разных вариантах изобретения представляют собой алкильные, арильные или нафтеновые радикалы соответственно. Технический результат заключается в повышении активности катализатора в реакциях гидродеароматизации би- и полициклических ароматических углеводородов, гидрирования и гидрообессеривания. 3 н.п. ф-лы, 4 табл., 16 пр.

Катализатор процесса облагораживания тяжелого нефтяного сырья и способ его приготовления (варианты)

Настоящее изобретение относится к дисперсному катализатору облагораживания тяжелого нефтяного сырья, представляющему из себя наночастицы на основе молибденсодержащих фаз, формирующемуся «in situ» при облагораживании тяжелого нефтяного сырья в присутствии воды, согласно изобретению катализатор дополнительно содержит наночастицы сокатализатора на основе Fe, Co или Ni и имеет состав MoS/MoO+ MeOи/или MeS, с содержанием фазы MoS3–78 мас. %, остальное – MoOнаночастицы сокатализатора имеют состав MeOи/или MeS, где Ме = Fe, Co, Ni, а x, y, m и n могут варьироваться и зависят от степени окисления металла и условий формирования катализатора, при этом размер частиц на основе молибденсодержащих фаз составляет 6–380 нм и размер частиц на основе Fe, Co или Ni составляет 2–366 нм. Также описаны варианты способа приготовления указанного выше дисперсного катализатора облагораживания тяжелого нефтяного сырья в присутствии воды, формирующегося «in situ» в условиях процесса облагораживания. Технический результат ...

Wasserstoffbehandlung und Hydrocrackkatalysator enthaltend ein Mischsulfid mit Schwefel, zumindest ein Element der Gruppe 5B und zumindest ein Element der Gruppe 6B

Improvements in or relating to the synthesis of oxygenated organic compounds

Alcohols are made by reacting olefines with CO and H2 in an oxygenation stage at elevated temperatures and pressures in the presence of an oxygenation catalyst with liquid phase hydrogenation of the product in the presence of a catalyst consisting essentially of a major proportion of charcoal supporting a minor proportion of molybdenum sulphide. The process is of particular use when the oxygenated products contain sulphur. The preferred catalyst contains 5-15 per cent of weight of molybdenum calculated as M0O3. For details of catalyst preparation see Group III Abridgment. Conventional conditions are used for both stages although preferred for hydrogenation are temperatures of 425-500 DEG F., pressures of 2,500-3,000 p.s.i., oxygenated product feed rates of 0.2-1.0 v/v/hrs. and hydrogen feed rates of 5,000-15,000 cu. ft. per barrel of feed. C8 oxygenated compounds are preferred for hydrogenation. An illustration is given of the hydrogenation of oxygenated products obtained from C6-C8 olefines ...

Synthesis of noble metal sulphilde catalysts in a sulphide ion-free aqueous environment

Slurry hydroconversion of biorenewable feedstocks

PROCESS FOR SLURRY HYDROCONVERSION OF HEAVY HYDROCARBON CHARGES IN THE PRESENCE OF A DISPERSED ACTIVE PHASE AND AN ALUMINA OXIDE

L'invention concerne un procédé de conversion de charges hydrocarbonées lourdes opérant en réacteur slurry en présence d'hydrogène et en présence d'une composition catalytique obtenue par: - injection d'un précurseur catalytique d'au moins un métal du groupe VIB et/ou VIII dans au moins une partie de la charge à traiter en l'absence de support oxyde, - traitement thermique à une température inférieure ou égale à 400.degree.C, en présence d'H2S pour former le catalyseur dispersé sulfuré, - mise en contact dudit catalyseur avec des particules d'oxyde d'alumine exemptes de silice, lesdites particules d'oxyde présentant une structure poreuse polymodale composée d'une pluralité d'agglomérats juxtaposés et formés chacun d'une pluralité de plaquettes aciculaires, les plaquettes de chaque agglomérat étant orientées radialement les unes vis à vis des autres et par rapport au centre de l'agglomérat, lesdites particules ayant une forme irrégulière et non sphérique et se présentant majoritairement ...

HYDROPROCESSING METHOD AND SYSTEM FOR UPGRADING HEAVY OIL USING A COLLOIDAL OR MOLECULAR CATALYST

... ²²²Methods and systems for hydroprocessing heavy oil feedstocks to form an ²upgraded material involve the use of a colloidal or molecular catalyst ²dispersed within a heavy oil feedstock, a hydrocracking reactor, and a hot ²separator. The colloidal or molecular catalyst promotes hydrocracking and ²other hydroprocessing reactions within the hydrocracking reactor. The catalyst ²is preferentially associated with asphaltenes within the heavy oil feedstock, ²which promotes upgrading reactions involving the asphaltenes rather than ²formation of coke precursors and sediment. The colloidal or molecular catalyst ²overcomes problems associated with porous supported catalysts in upgrading ²heavy oil feedstocks, particularly the inability of such catalysts to ²effectively process asphaltene molecules. The result is one or more of reduced ²equipment fouling, increased conversion level, and more efficient use of the ²supported catalyst if used in combination with the colloidal or molecular ²catalyst.² ...

PROCESS FOR SLURRY HYDROCONVERSION OF HEAVY HYDROCARBON CHARGES IN THE PRESENCE OF A DISPERSED ACTIVE PHASE AND AN ALUMINA OXIDE

L'invention concerne un procédé de conversion de charges hydrocarbonées lourdes opérant en réacteur slurry en présence d'hydrogène et en présence d'une composition catalytique obtenue par: - injection d'un précurseur catalytique d'au moins un métal du groupe VIB et/ou VIII dans au moins une partie de la charge à traiter en l'absence de support oxyde, - traitement thermique à une température inférieure ou égale à 400.degree.C, en présence d'H2S pour former le catalyseur dispersé sulfuré, - mise en contact dudit catalyseur avec des particules d'oxyde d'alumine exemptes de silice, lesdites particules d'oxyde présentant une structure poreuse polymodale composée d'une pluralité d'agglomérats juxtaposés et formés chacun d'une pluralité de plaquettes aciculaires, les plaquettes de chaque agglomérat étant orientées radialement les unes vis à vis des autres et par rapport au centre de l'agglomérat, lesdites particules ayant une forme irrégulière et non sphérique et se présentant majoritairement ...

SULFIDE-BASED ALKANE DEHYDROGENATION CATALYSTS

A catalyst for the dehydrogenation of alkanes to alkenes comprises a catalytically active material supported on a carrier, wherein the catalytically active material is a metallic sulfide (MeS) comprising Fe, Co, Ni, Cu, Mo or W or any combination of two or more metals selected from Pb, Sn, Zn, Fe, Co, Ni, Cu, Mo and W. The catalyst is regenerated in several steps. The dehydrogenation is carried out at a temperature between 450 and 650°C and a pressure from 0.9 bar below ambient pressure to 5 bar above ambient pressure.

HYDROTREATMENT CATALYSTS AND PROCESS FOR PREPARING SAID CATALYSTS

The present invention is in the field of heterogeneous catalysis. Particularly, the present invention relates to a process for preparing catalysts advantageously usable in the hydrotreatment processes, for example in hydrodesulphurization, hydrodenitrogenation, hydrodearomatization processes of hydrocarbons. More in particular, the present invention relates to a process for obtaining said catalysts, which comprise mixed oxides of Nickel, Aluminum, Molybdenum and Tungsten and optionally a transition metal Me selected from the group consisting of Zn, Mn, Cd, and a mixture thereof, an organic component C, and possibly an inorganic binder B. Said mixed oxides comprise an amorphous phase and a pseudo-crystalline phase isostructural to Wolframite. The present invention further relates to said hydrotreatment catalysts and a hydrotreatment process wherein said catalysts are used.

CATALYTIC SYSTEM AND PROCESS FOR THE HYDROCONVERSION OF HEAVY OIL PRODUCTS

Catalytic system which can be used in processes for the hydroconversion of heavy oils by means of hydrotreatment in slurry phase, characterized in that it comprises: a catalyst, having the function of hydrogenating agent, containing MoS2 or WS2 or mixtures thereof in lamellar form or an oil-soluble precursor thereof; a co-catalyst, having nanometric or micronic particle- sizes, selected from cracking and/or denitrogenation catalysts. The co-catalyst preferably consists of zeolites having small-sized crystals and with a low aggregation degree between the primary particles, and/or oxides or sulfides or precursors of sulfides of Ni and/or Co in a mixture with Mo and/or W.

PROCESS FOR TREATING A HYDROCARBON-CONTAINING FEED

A process for treating a hydrocarbon-containing feed is provided in which a hydrocarbon-containing feed comprising at least 20 wt.% of heavy hydrocarbons is mixed with hydrogen and a catalyst to produce a hydrocarbon-containing product. The catalyst is prepared by mixing a first salt and a second salt in an aqueous mixture under anaerobic conditions at a temperature of from 15°C to 150°C, where the first salt comprises a cationic component in any non-zero oxidation state selected from the group consisting of Cu, Fe, Ag, Co, Mn, Ru, La, Ce, Pr, Sm, Eu, Yb, Lu, Dy, Ni, Zn, Bi, Sn, Pb, and Sb, and where the second salt comprises an anionic component selected from the group consisting of MoS4 2-, WS4 2-, SnS4 4-, and SbS4 3.

PROCESS FOR PRODUCING A THIOMETALLATE OR A SELENOMETALLATE MATERIAL

A method for producing a thiometallate or selenometallate material is provided in which a first salt containing an anionic component selected from the group consisting of MoS4 2-, MoSe4 2-, WS4 2-, WSe4 2-,VS4 3-, and VSe4 3- and a second salt containing a cationic component comprising a metal in any non-zero oxidation state selected from the group consisting of Fe, Ag, Co, Mn, Re, Ru, Rh, Pd, Ir, Pt, B, Al, Ce, La, Pr, Sm, Eu, Yb, Lu, Dy, Ni, Zn, Bi, and Sn are mixed under anaerobic conditions in an aqueous mixture at a temperature of from 15°C to 150°C.

PROCESS FOR TREATING A HYDROCARBON-CONTAINING FEED

A process for treating a hydrocarbon-containing feedstock is provided in which a hydrocarbon-containing feed comprising at least 20 wt.% of heavy hydrocarbons is mixed with hydrogen and at least one catalyst to produce a hydrocarbon-containing product. The hydrocarbon-containing feedstock, the catalyst(s), and the hydrogen are provided to a mixing zone and blended in the mixing zone at a temperature of from 375°C to 500°C. A vapor comprised of hydrocarbons that are vaporizable at the temperature and pressure within the mixing zone is separated from the mixing zone, and, apart from the mixing zone, the vapor is condensed to produce a liquid hydrocarbon-containing product. The hydrocarbon-containing feedstock is continuously or intermittently provided to the mixing zone at a rate of at least 350 kg/hr per m3 of the mixture volume in the mixing zone.

PROCESS FOR TREATING A HYDROCARBON-CONTAINING FEED

A process for treating a hydrocarbon-containing feedstock is provided in which a hydrocarbon-containing feed comprising at least 20 wt.% of heavy hydrocarbons is mixed with hydrogen and at least one catalyst to produce a hydrocarbon-containing product. The hydrocarbon-containing feedstock, the catalyst, and the hydrogen are provided to a mixing zone and blended in the mixing zone at a temperature of from 375°C to 500°C and a total pressure of from 6.9 MPa to 27.5 MPa. A vapor comprised of hydrocarbons that are vaporizable at the temperature and pressure within the mixing zone is separated from the mixing zone, and, apart from the mixing zone, the vapor is condensed to produce a liquid hydrocarbon-containing product containing at least 85% of the atomic carbon initially present in the hydrocarbon-containing feedstock and containing at most 2 wt.% hydrocarbons having a boiling point of at least 538°C.

HYDROCARBON-SOLUBLE MOLYBDENUM CATALYST PRECURSORS AND METHODS OF MAKING SAME

Hydrocarbon-soluble molybdenum catalyst precursors include a plurality of molybdenum cations that are each bonded with a plurality of organic anions to form an oil soluble molybdenum salt. A portion of the molybdenum atoms are in the 3+ oxidation state such that the plurality of molybdenum atoms has an average oxidation state of less than 4+, e.g., less than about 3.8+, especially less than about 3.5+. The catalyst precursors can form a hydroprocessing molybdenum sulfide catalyst in heavy oil feedstocks. The oil soluble molybdenum salts are manufactured in the presence of a reducing agent, such as hydrogen gas, to obtain the molybdenum in the desired oxidation state. Preferably the reaction is performed with hydrogen or an organic reducing agent and at a temperature such that the molybdenum atoms are reduced to eliminate substantially all molybdenum oxide species.

SUPPORTED CATALYSTS FOR PRODUCING ULTRA-LOW SULPHUR FUEL OILS

The present invention relates to the preparation of catalysts used in the hydrodesulfurisation of fossil fuels and proposes a method for preparing thermally stable, low-cost catalysts for the hydrodesulfurisation of petrol and diesel, based on highly active CoMo and NiMo. The catalyst for the hydroprocessing of gas oil or petrol in the present invention comprises a precursor which consists of chemical compounds obtained from organic acids and metal salts and a support containing an ultra-stable Y-type zeolite useful in the hydroprocessing of heavy gas oil and/or light cyclic gas oil with high conversion rates.

A CATALYST AND CATALYST CARRIER

The carrier of the present invention includes at least 85 wt percent alpha alumina, at least 0.06 wt percent SiO2 and no more than 0.04 wt percent Na2O. The carrier has a water absorption no greater than 0.35 g/g and a ratio of water absorption (g/g) to surface area (m2/g) no greater than 0.50 g/m2. Another aspect of the invention is a catalyst for the epoxidation of olefins which comprises the above described carrier and silver dispersed thereon, where the carrier has a monomodal, bimodal or multimodal pore distribution and where the quantity of silver is between 5 and 50 wt%, relative to the weight of the catalyst. A reactor system for the epoxidation of olefins is also disclosed.

PROCESS FOR TREATING A HYDROCARBON-CONTAINING FEED

A process for treating a hydrocarbon-containing feedstock is provided in which a hydrocarbon-containing feedstock comprising at least 20 wt.% of heavy hydrocarbons is mixed with hydrogen, hydrogen sulfide and a metal-containing catalyst at a temperature of 375°C to 500°C and a pressure of from 6.9 MPa to 27.5 MPa to produce a vapor comprising a first hydrocarbon-containing product, where the hydrogen sulfide is mixed with the feedstock, metal-containing catalyst, and hydrogen at a mole ratio of hydrogen sulfide to hydrogen of at least 1:10. The vapor comprising the first hydrocarbon-containing product is separated from the mixture, and, apart from the mixture, the first hydrocarbon-containing product is contacted with hydrogen and a catalyst containing a Column 6 metal at a temperature of 260°C-425°C and a pressure of from 3.4 MPa to 27.5 MPa to produce a second hydrocarbon-containing product.

OXICHLORINATION CATALYSTS WITH MOLYBDENUM TERNARY CHALCOGENIDES

La présente invention concerne des chalcogénures de formule MxMo6Ch8 dans laquelle M désigne un métal, Ch désigne le soufre, le selenium ou le tellure et x est compris èntre 0 et 4. Ces chalcogénures sont utiles comme catalyseur d'oxychloration. L'invention concerne également un procédé d'oxychloration utilisant au moins un desdits chalcogénures, des charges catalytiques renfermant au moins un desdits chalcogénures et un procédé de préparation desdits chalcogénures.

PRECARBONATION OF HYDROPROCESSING CATALYST

La présente invention concerne un procédé de sulfuration d'un catalyseur d'hydrotraitement d'hydrocarbures en présence d'hydrogène et d'au moins un composé sulfuré. Le procédé est caractérisé en ce que le catalyseur comprend un composé carboné en majeure partie non lixiviable déposé dans sa porosité. L'invention s'applique tout particulièrement à une sulfuration procédée hors site.

CATALYST HYDRO OChISKI HYDROCARBON RAW MATERIAL

METHODS AND SYSTEMS FOR INCREASE QUALITY OF CONDENSATE OF HEAVY HYDROCARBONS WITH USE OF CATALYTIC HYDRO CRACKING AND THERMAL COKING

СПОСОБ ПЕРЕРАБОТКИ ТЯЖЕЛОЙ НЕФТИ С РЕЦИРКУЛЯЦИЕЙ СУСПЕНЗИИ АКТИВНОЙ КАТАЛИТИЧЕСКОЙ КОМПОЗИЦИИ

Настоящее изобретение направлено на осуществление способа гидропереработки тяжелых нефтей, в котором применяют каталитическую композицию в виде суспензии. Каталитической композиции в виде суспензии не дают возможности оседать, что могло бы привести к возможной дезактивации. Суспензию рециркулируют для повторного использования в реактор переработки, и продукты не требуют никаких дальнейших процедур по их разделению с целью удаления катализатора.

CATALYSTS HYDRO PROCESSING AND METHODS OF THEIR SYNTHESIS

Method of producing aromatic hydrocarbons from byproducts of aromatic carboxylic acid and/or aromatic carboxylic acid alkylester preparation processes

This invention relates to a method of producing an aromatic hydrocarbon compound from byproducts of aromatic carboxylic acid and/or aromatic carboxylic acid alkylester preparation processes using hydroprocessing under conditions of high temperature and high hydrogen pressure in the presence of a catalyst, and to a hydroprocessing catalyst used therein.

Catalyst precursor for hydrocracking and method for hydrocracking of heavy oil using thereof

METHOD OF PRODUCING LIGHT OILS FROM EXTRA HEAVY OILS BY USING SULFIDATED NICKEL-MOLYBDENUM-TUNGSTEN DISPERSED CATALYST WITHOUT USE OF CARRIER

The present invention relates to a method of producing light oils from extra heavy oils by using a nickel-molybdenum-tungsten dispersed catalyst without the use of a carrier. According to the present invention, a method of producing light oils by using a sulfidated nickel-molybdenum-tungsten dispersed catalyst without the use of a carrier can produce light oils by efficiently decomposing extra heavy oils while the catalyst has higher reactivity compared with commercial NiMo/Al_2O_3 catalysts which is generally used in the decomposition reaction of heavy oils, exhibits a high yield of liquid-phase products, suppresses the generation of cokes compared to a catalyst using a carrier, and exhibits high activity in the decomposition of asphaltene as well. COPYRIGHT KIPO 2018 ...

기회 공급원료와 함께 사용된 업그레이드된 에뷸레이티드 베드 반응기

... 에뷸레이티드 베드 수소첨가처리 시스템은 전환된 생성물의 생성 속도를 유지하거나 증가시키면서, 기회 공급원료(즉, 저품질 중유 또는 저품질 공급원료 블렌드)를 수소첨가처리하기 위해, 불균일 촉매 및 분산된 금속 설파이드 입자를 포함하는 이원 촉매 시스템을 사용하여 업그레이드된다. 이원 촉매 시스템은 기회 공급원료의 주기적인 사용에 대한 부정적인 영향을 (예를 들어, 장비 오염 및/또는 침전물 생성을 상당히 증가시키지 않으면서) 수용하고 견딜 수 있는 상기 에뷸레이티드 베드 수소첨가처리 시스템의 능력을 개선시킨다. 경우에 따라, 이원 촉매 시스템을 사용하는 업그레이드된 에뷸레이티드 베드 반응기는 장비 오염 및/또는 침전물 생성을 감소시키면서 기회 공급원료를 수소첨가처리할 수 있다.

PROCESS FOR RECYCLING AN ACTIVE SLURRY CATALYST COMPOSITION IN HEAVY OIL UPGRADING

The instant invention is directed to a process employing slurry catalyst compositions in the upgrading of heavy oils. The slurry catalyst composition is not permitted to settle, which would result in possible deactivation. The slurry is recycled to an upgrading reactor for repeated use and products require no further separation procedures for catalyst removal.

SYSTEM AND METHOD FOR PRETREATMENT OF SOLID CARBONACEOUS MATERIAL

This invention encompasses systems and methods for pretreating a carbonaceous material, comprising heating to a suitable temperature and for a suitable reaction time, a mixture comprising the carbonaceous material, one or more catalysts or catalyst precursors, and a hydrocarbonaceous liquid.

Slurry Hydroconversion of Biorenewable Feedstocks

A method for hydroconversion of a combined feed of at least one low value petroleum derived hydrocarbon and at least one biorenewable feedstock in a hydroconversion reaction zone in the presence of a hydroconversion catalyst at hydroconversion reaction conditions for a period of time sufficient to form a hydroconversion reaction product.

DISPERSED METAL SULFIDE CATALYSTS FOR HYDROPROCESSING

КАТАЛИЗАТОРЫ ГИДРОДЕМЕТАЛЛИРОВАНИЯ И ГИДРОДЕСУЛЬФУРИЗАЦИИ И ПРИМЕНЕНИЕ В СПОСОБЕ СОЕДИНЕНИЯ В ОДНОМ СОСТАВЕ

Изобретение относится к катализатору гидродеметаллирования и гидродесульфуризации, к каталитической системе и способу гидрообработки тяжелого углеводородного сырья. Описан катализатор, содержащий по меньшей мере один металл группы VIB, по меньшей мере два металла группы VIII, называемые главным промотором VIII-1 и сопромоторами VIII-i, где i находится в интервале от 2 до 5, и по меньшей мере один носитель, состоящий из пористого огнеупорного оксида, в котором элементы группы VIII присутствуют в пропорциях, определяемых атомным отношением [VIII-1/(VIII-1+…+VIII-i)], причем указанное отношение составляет от 0,5 до 0,85 и указанный катализатор содержит металл или металлы группы VIB в количестве от 2 до 9% масс. триоксида металла или металлов группы VIB по отношению к общей массе катализатора и суммарное содержание металлов группы VIII составляет от 0,3 до 2% масс. оксида металлов группы VIII по отношению к общей массе катализатора. Описана каталитическая система, содержащая по меньшей мере ...

СПОСОБ ОБРАБОТКИ С ИСПОЛЬЗОВАНИЕМ ВОДОРОДА И СИСТЕМА ДЛЯ ОБОГАЩЕНИЯ ТЯЖЕЛОЙ НЕФТИ С ИСПОЛЬЗОВАНИЕМ КОЛЛОИДНОГО ИЛИ МОЛЕКУЛЯРНОГО КАТАЛИЗАТОРА

Способы и системы обработки тяжелого нефтяного сырья с использованием водорода с образованием обогащенного материала включают использование коллоидного или молекулярного катализатора, диспергированного в тяжелом нефтяном сырье, реактор гидрокрекинга и горячий сепаратор. Коллоидный или молекулярный катализатор катализирует реакции гидрокрекинга и другой обработки с использованием водорода в реакторе гидрокрекинга. Катализатор, предпочтительно, ассоциируется с асфальтенами в тяжелом нефтяном сырье, что способствует реакциям обогащения, включающим асфальтены, в большей степени, чем образованию предшественников кокса и осадка. Коллоидный или молекулярный катализатор преодолевает проблемы, связанные с пористыми катализаторами на носителе в обогащении тяжелого нефтяного сырья, в частности неспособность таких катализаторов эффективно обрабатывать асфальтеновые молекулы. Результатом является одно из следующего: сниженное засорение оборудования, увеличенный уровень конверсии и более эффективное ...

СПОСОБ ПОЛУЧЕНИЯ СУСПЕНЗИИ КАТАЛИЗАТОРА ГИДРОКОНВЕРСИИ ТЯЖЕЛОГО НЕФТЯНОГО СЫРЬЯ

Изобретение относится к области нефтепереработки и, более конкретно, к способам приготовления наноразмерных и ультрадисперсных катализаторов без носителя для гидрогенизационной переработки высокомолекулярного углеводородного сырья, в частности высококипящих остатков переработки нефти, природных битумов, битуминозных нефтей, углеродсодержащих отходов и др., и может быть использовано в нефтеперерабатывающей промышленности с получением углеводородного газа, бензиновых и дизельных фракций, вакуумного газойля. Способ получения суспензии катализатора гидроконверсии тяжелого нефтяного сырья включает стадии получения гомогенной смеси водного раствора водорастворимого прекурсора катализатора и сульфидирующего агента в углеводородной среде, диспергирования смеси с получением обращенной эмульсии и термообработки обращенной эмульсии в течение 2-8 ч при температуре 280-370°С с получением суспензии, содержащей стабилизированные в углеводородной среде частицы катализатора размером не более 350 нм. Углеводородная ...

Способ приготовления катализатора гидроочистки нефтяных фракций в сульфидной форме (варианты)

Предложено три варианта способа приготовления катализатора гидроочистки нефтяных фракций в сульфидной форме. Один из вариантов способа приготовления катализатора гидроочистки нефтяных фракций в сульфидной форме осуществляется формованием соэкструзией смеси гидроксида алюминия, оксида молибдена и основного карбоната никеля или кобальта в цилиндрические гранулы, просушивание и прокаливание с последующей пропиткой водным раствором тиомочевины с концентрацией 42-55 масс.% или водным раствором роданида аммония с концентрацией 42-55 масс.%, термообработку при температуре 250-320°С в токе водорода в течение 30-60 мин, при этом получают катализатор, содержащий, масс.%: сульфид никеля или сульфид кобальта 3,0-8,5, сульфид молибдена 8,9-22, оксид алюминия остальное. Технический результат - упрощение приготовления и повышение каталитической активности катализатора, что обеспечивает высокую активность в реакциях гидрообессеривания в процессе гидроочистки фракций дизельного топлива, сырья каталитического ...

КАТАЛИЗАТОРЫ ДЕГИДРИРОВАНИЯ АЛКАНОВ НА ОСНОВЕ СУЛЬФИДОВ

МАТЕРИАЛЫ НОСИТЕЛЯ КАТАЛИЗАТОРА, КАТАЛИЗАТОРЫ, СПОСОБЫ ИХ ПОЛУЧЕНИЯ И ПРИМЕНЕНИЯ

... 1. Способ получения материала носителя катализатора, включающий:(a) предоставление суспензии диоксида титана анатазной модификации; и(b) комбинирование суспензии диоксида титана анатазной модификации с i) низкомолекулярной формой кремнезема и ii) источником молибдена с образованием смеси TiO-MoO-SiO, гденизкомолекулярная форма кремнезема включает элемент, выбранный из группы, состоящей из форм кремнезема, имеющих средневзвешенный по объему медианный размер меньше, чем 4 нм и среднюю молекулярную массу меньше, чем 44000, а также их комбинации.2. Способ по п. 1, дополнительно включающий предоставление некоторого количества фосфата в суспензию диоксида титана анатазной модификации.3. Способ по п. 2, дополнительно включающий предоставление фосфата после предоставления i) низкомолекулярной формы кремнезема и ii) источника молибдена.4. Способ по п. 1, включающий предоставление источника молибдена или низкомолекулярной формы кремнезема в суспензию диоксида титана анатазной модификации с помощью ...

Способ получения катализатора гидроочистки дизельных фракций, катализатор гидроочистки дизельных фракций и способ его применения

Настоящее изобретение относится к способу получения катализатора гидроочистки дизельных фракций, содержащего Ni, Mo и Р, к катализатору, полученному данным способом, и к способу гидроочистки дизельной фракции с использованием полученного катализатора. Способ получения катализатора включает приготовление раствора комплексных солей [P2Mo5O23]6-, [PMo12O40]3-, [PMo11O40]3-, [P2Mo18O42]6-, [PMo9O31(ОН)3]6- гетерополианионов, либо их смесей, с использованием Н3РО4 и органического модификатора, сочетание и соотношения которых обеспечивают образование в растворе анионов гетерополикислот [P2Mo5O23]6-, [PMo12O40]3-, [PMo11O40]3-, [P2Mo18O42]6-, [PMo9O31(OH)3]6-, либо их смесей и стабильность их при рН в интервале от 0,7 до 4,5. Также способ включает вакуумирование и пропитку носителя, модифицированного или не модифицированого соединениями кремния, раствором комплексных солей [P2Mo5O23]6-, [PMo12O40]3-, [PMo11O40]3-, [P2Mo18O42]6-, [PMo9O31(ОН)3]6- гетерополианионов, либо их смесей, матурацию пропитанного ...

ВЫСОКОАКТИВНЫЙ МАТЕРИАЛ, ПРЕДСТАВЛЯЮЩИЙ СОБОЙ СМЕШАННЫЙ ОКСИД ПЕРЕХОДНЫХ МЕТАЛЛОВ, ВЫСОКОАКТИВНЫЕ ЧЕТВЕРТИЧНЫЕ МЕТАЛЛИЧЕСКИЕ МАТЕРИАЛЫ, ИСПОЛЬЗУЮЩИЕ СОЕДИНЕНИЯ КОРОТКОЦЕПОЧЕЧНОГО ЧЕТВЕРТИЧНОГО АЛКИЛАММОНИЯ

Изобретение относится к материалу для изготовления катализатора конверсии углеводородов, содержащему смешанный оксид переходных металлов, имеющий формулу:(MIa)m(MIIb)n(MIIIc)o(MIVd)pCeqHfrNgsOhtXiuSjv, где MIпредставляет собой металл или смесь металлов, выбранных из группы IB (группа 11 по IUPAC), группы IIB (группа 12 по IUPAC), группы VIIB (группа 7 по IUPAC) и группы IVB (группа 4 по IUPAC); MIIпредставляет собой металл или смесь металлов, выбранных из группы VIII (группы 8, 9 и 10 по IUPAC); MIIIпредставляет собой металл, выбранный из группы VIB (группа 6 по IUPAC); MIVпредставляет собой металл, выбранный из группы VIB (группа 6 по IUPAC), который отличается от MIII; X представляет собой галогенид (группа 17 по IUPAC); a, b, c, d, e, f, g, h, i и j представляют собой состояние валентности MI, MII, MIII, MIV, C, H, N, O, X и S; m, n, o, p, q, r, s, t, u и v представляют собой молярное соотношение MI, MII,MIII,MIV, C, H, N, O, X и S, где m/(m + n) > 0 и m/(m + n) ≤ 1, причем (m + n)/( ...

КАТАЛИЗАТОРЫ ГИДРОДЕМЕТАЛЛИРОВАНИЯ И ГИДРОДЕСУЛЬФУРИЗАЦИИ И ПРИМЕНЕНИЕ В СПОСОБЕ СОЕДИНЕНИЯ В ОДНОМ СОСТАВЕ

... 1. Катализатор, содержащий по меньшей мере один металл группы VIB, по меньшей мере два металла группы VIII, один из которых является главным промотором, называемым VIII-1, и один или несколько других называются сопромотором VIII-i, где i находится в интервале от 2 до 5, и по меньшей мере один носитель, состоящий из пористого огнеупорного оксида, в котором элементы группы VIII присутствуют в пропорциях, определяемых атомным отношением [VIII-1/(VIII-1+…+VIII-i)], причем указанное отношение составляет от 0,5 до 0,85. !2. Катализатор по п.1, в котором металлы группы VIB выбраны из молибдена и вольфрама. ! 3. Катализатор по любому из пп.1 или 2, в котором металлы группы VIII выбраны из железа, никеля или кобальта, при этом главным промотором (VIII-1) является кобальт или никель. ! 4. Катализатор по любому из пп.1 или 2, в котором указанный катализатор содержит металл группы VIB и два металла группы VIII, при этом металлом группы VIB является молибден и металлами группы VIII являются никель и ...

СПОСОБ ОМОЛАЖИВАНИЯ КАТАЛИЗАТОРА ПРОЦЕССА ГИДРООЧИСТКИ И/ИЛИ ГИДРОКРЕКИНГА

Изобретение относится к способу омолаживания по меньшей мере частично отработанного катализатора, использовавшегося в процессе гидроочистки и/или гидрокрекинга. При этом указанный, по меньшей мере частично отработанный, катализатор происходит из свежего катализатора, содержащего по меньшей мере один металл группы VIII, по меньшей мере один металл группы VIB, оксидную подложку. Способ включает следующие этапы: a) регенерация по меньшей мере частично отработанного катализатора в потоке газа, содержащего кислород, при температуре между 300°C и 550°C, чтобы получить регенерированный катализатор, затем b) контактирование указанного регенерированного катализатора с фосфорной кислотой и органической кислотой, выбранной из глюконовой кислоты, γ-кетовалериановой кислоты, молочной кислоты, аскорбиновой кислоты или янтарной кислоты, c) проведение этапа сушки при температуре ниже 200°C без позднейшего обжига с получением омоложенного катализатора. Также изобретение относится к применению катализатора ...

VORKARBURIERUNG A HYDRAULIC TREATMENT CATALYST

Catalyst support materials, catalysts, methods of making them and uses thereof

Catalyst support materials, catalysts, methods of making such and uses thereof are described. Methods of making catalyst support material include combining anatase titania slurry with i) a low molecular weight form of silica; and ii) a source of Mo to form a Ti0 ...

Water-gas shift catalyst

A catalyst precursor for preparing a catalyst suitable for use in a sour water-gas shift process is described, comprising; 5 to 30% by weight of a catalytically active metal oxide selected from tungsten oxide and molybdenum oxide; 1 to 10% by weight of a promoter metal oxide selected from cobalt oxide and nickel oxide; and 1 to15% by weight of an oxide of an alkali metal selected from sodium, potassium and caesium;supported on a titania catalyst support.

Hydroprocessing catalysts and methods for making thereof

An improved process to make a slurry catalyst for the upgrade of heavy oil feedstock is provided. In the process, at least a metal precursor feedstock is portioned and fed in any of the stages: the promotion stage; the sulfidation stage; or the transformation stage of a water-based catalyst precursor to a slurry catalyst. In one embodiment, the promoter metal precursor feedstock is split into portions, the first portion is for the sulfiding step, the second portion is for the promotion step; and optionally the third portion is to be added to the transformation step in the mixing of the sulfided promoted catalyst precursor with a hydrocarbon diluent to form the slurry catalyst. In another embodiment, the Primary metal precursor feedstock is split into portions.

Dispersed metal sulfide-based catalysts

The invention provides a catalyst composition, which includes an emulsion of an aqueous phase in an oil phase, wherein the aqueous phase comprises an aqueous solution containing a group 6 metal and a group 8, 9 or 10 metal. The metals can be provided in two separate emulsions, and these emulsions are well suited for treating hydrocarbon feedstocks.

In situ radio frequency catalytic upgrading

The present invention relates to a method and system for enhancing in situ upgrading of hydrocarbon by implementing an array of radio frequency antennas that can uniformly heat the hydrocarbons within a producer well pipe, so that the optimal temperatures for different hydroprocessing reactions can be achieved.

Hydrothermal hydrocatalytic treatment of biomass

A method of hydrothermal hydrocatalytic treating biomass is provided. Lignocellulosic biomass is treated with a digestive solvent to form a pretreated biomass containing soluble carbohydrates. The pretreated biomass is contacted, with hydrogen at a temperature in the range of 150° C. to less than 300° C. in the presence of a pH buffering agent and a supported hydrogenolysis catalyst containing (a) sulfur, (b) Mo or W, and (c) Co, Ni or mixture thereof, incorporated into a suitable support, to form a plurality of oxygenated hydrocarbons.

AMORPHOUS TRANSITION METAL SULPHIDE FILMS OR SOLIDS AS EFFICIENT ELECTROCATALYSTS FOR HYDROGEN PRODUCTION FROM WATER OR AQUEOUS SOLUTIONS

The present invention relates to amorphous transition metal sulphides as electrocatalysts for hydrogen production from water or aqueous solutions and use thereof in electrodes and electrolysers. 1. Use of amorphous transition metal sulphide films or solids as electrocatalysts for the reduction of proton to form H.2. The use of amorphous transition metal sulphide films or solids of claim 1 , wherein the transition metal sulphide is of formula MS claim 1 , where M is the transition metal and x is in the range 1.5 to 3.5.3. The use of amorphous transition metal sulphide films or solids of claim 1 , wherein the transition metal is selected from the group comprising Mo claim 1 , W claim 1 , Fe claim 1 , Cr claim 1 , Cu claim 1 , Ni.4. The use of amorphous transition metal sulphide films or solids of claim 1 , wherein the transition metal sulphide is MoS claim 1 , MoS claim 1 , WSor WS.5. The use of amorphous transition metal sulphide films or solids of claim 1 , wherein the amorphous transition metal sulphide films or solids are further doped with at least one metal selected from the group comprising Ni claim 1 , Co claim 1 , Mn claim 1 , Cu claim 1 , Fe.6. The use of amorphous transition metal sulphide films or solids of claim 5 , wherein the amorphous transition metal sulphide films or solids are further doped with Ni.7. The use of amorphous transition metal sulphide films or solids of claim 1 , wherein His originated from water or aqueous solutions.8. An electrode for use in the production of hydrogen gas from water or aqueous solutions comprising an electrode substrate claim 1 , wherein the amorphous transition metal sulphide films or solids of are deposited on said electrode substrate.9. The electrode of claim 8 , wherein the amorphous transition metal sulphide films or solids are selected from the group comprising amorphous MoSfilm or solid claim 8 , amorphous MoSfilm or solid claim 8 , amorphous WSfilm or solid claim 8 , and amorphous WSfilm or solid.10. The ...

Hydrodesulfurization catalyst for hydrocarbon oil, process of producing same and method for hydrorefining

A hydrodesulfurization catalyst is produced by pre-sulfurizing a hydrodesulfurization catalyst Y including a support containing silica, alumina and titania and at least one metal component supported thereon and selected from VIA and VIII groups of the periodic table (comprising at least Mo), in which the total area of the diffraction peak area indicating the crystal structure of anatase titania (101) planes and the diffraction peak area indicating the crystal structure of rutile titania (110) planes in the support, measured by X-ray diffraction analysis being ¼ or less of the alumina diffraction peak area assigned to γ-alumina (400) planes. The molybdenum is formed into molybdenum disulfide crystal disposed in layers on the support by the pre-sulfurization, and having an average length of longer than 3.5 nm and 7 nm or shorter in the plane direction and an average number of laminated layers of more than 1.0 and 1.9 or fewer.

PROCESS FOR THE HYDROCONVERSION OF A LOW QUALITY HYDROCARBONACEOUS FEEDSTOCK

The invention concerns a process for upgrading lower quality carbonaceous feedstock using a slurry catalyst composition. The use of particular organometallic compounds as precursors for the dispersed active catalyst allows for reduced coke formation. 2. Process according to , wherein each of Cor Cis a C5-C8 monocyclic polyene ligand comprising from 0 to 5 substituents R , each substituent R being the same of different , R being defined as in .3. Process according to , wherein each of Cand Cis a cyclopentadienyl ligand comprising from 0 to 5 substituents R , each substituent R being the same or different , R being defined as in .5. Process according to claim 1 , wherein -L is selected from Hydride (-L=—H) claim 1 , Halide (-L=—F claim 1 , —Cl claim 1 , —Br claim 1 , —I) claim 1 , cyanide (-L=—CN) claim 1 , Alkoxide (-L=—OR) claim 1 , Thiolate (-L=—SR) claim 1 , Amide (-L=—NR) claim 1 , Phosphide (-L=—PR) claim 1 , Alkyl (-L=—CHR or other) claim 1 , Alkenyl (-L=—CHCHR) claim 1 , Alkynyl (-L=—CCR) claim 1 , Acyl (-L=—COR) claim 1 , Isocyanide (-L=—CNR) claim 1 , Nitrosyl (-L=—NO) claim 1 , Diazenide (-L=—NNR) claim 1 , Imide (-L=═NR) claim 1 , L=-ERor -EX(with E=Si claim 1 , Ge claim 1 , Sn) claim 1 , -L=—PR claim 1 , —PX claim 1 , —AsR claim 1 , —SbR claim 1 , amines claim 1 , L=ER(with E=O claim 1 , S claim 1 , Se claim 1 , Te) claim 1 , where X is an halogen atom claim 1 , R is a C1-C8 claim 1 , preferably a C1-C6 claim 1 , linear or branched claim 1 , alkyl claim 1 , alkenyl Group or a C3-C8 alicyclic or aromatic group.6. Process according to claim 1 , wherein M is selected from Group IIA claim 1 , IIB claim 1 , IIIB claim 1 , IVB claim 1 , VB claim 1 , VIIB claim 1 , VIIB or VIII of the periodic table of the elements.7. Process according to claim 1 , wherein M is selected from Fe claim 1 , V or Mo.8. Process according to claim 1 , wherein said precursor composition furthermore comprises at least one surfactant and/or a least one promoter.9. Process according to ...

Photochemical Processes and Compositions for Methane Reforming Using Transition Metal Chalcogenide Photocatalysts

The present invention provides a transition metal chalcogenide photocatalyst, a reactor using the transition metal chalcogenide photocatalyst, and methods of making and using a transition metal chalcogenide photocatalyst for reforming CHwith CO. 1. A photocatalyst for reforming methane with COcomprising:{'sub': 4', '2, 'a transition metal chalcogenide photocatalyst chemically stable in an environment comprising CHand CO, wherein the transition metal chalcogenide photocatalyst comprises Ti, V, Cr, Mn, Fe, Co, Ni, Zr, Nb, Mo, Tc, Ru, Rh, Pt, Hf, Ta, W, Re, Os, Ir, Pt or combinations thereof.'}2. The photocatalyst of claim 1 , wherein the transition metal chalcogenide photocatalyst comprises TiS claim 1 , VS claim 1 , CrS claim 1 , MnS claim 1 , FeS claim 1 , CoS claim 1 , NiS claim 1 , ZrS claim 1 , NbS claim 1 , MoS claim 1 , TcS claim 1 , RuS claim 1 , RhS claim 1 , PtS claim 1 , HfS claim 1 , TaS claim 1 , WS claim 1 , ReS claim 1 , OsS claim 1 , IrS claim 1 , PtSor combinations thereof.3. The photocatalyst of claim 1 , wherein the transition metal chalcogenide photocatalyst comprises CoSand MoS; CoSand WS; NiSand MoS; or NiSand WS.4. The photocatalyst of claim 1 , wherein the transition metal chalcogenide photocatalyst is supported on a conductive inert support optionally consisting of carbon having a surface area exceeding about 120 g/m.5. A gas reforming electrode for reforming CHwith COcomprising:a conductive web; and{'sub': 4', '2, 'a transition metal chalcogenide photocatalyst applied on at least one face of the conductive web and is chemically stable in an environment comprising CHand CO.'}6. The gas reforming electrode of claim 5 , wherein said conductive web is a carbon cloth.7. The gas reforming electrode of claim 5 , wherein said catalyst is mixed with an optionally perfluorinated hydrophobic binder.8. The gas reforming electrode of claim 5 , wherein the transition metal chalcogenide photocatalyst comprises Ti claim 5 , V claim 5 , Cr claim 5 , Mn claim ...

HIGHLY STABLE HYDROCARBON-SOLUBLE MOLYBDENUM CATALYST PRECURSORS AND METHODS FOR MAKING SAME

Hydrocarbon-soluble molybdenum catalyst precursors include a plurality of molybdenum cations and a plurality of carboxylate anions having at least 8 carbon atoms. The carboxylate anions are alicyclic, aromatic, or branched, unsaturated and aliphatic, and can derived from carboxylic acids selected from 3-cyclopentylpropionic acid, cyclohexanebutyric acid, biphenyl-2-carboxylic acid, 4-heptylbenzoic acid, 5-phenylvaleric acid, geranic acid, 10-undecenoic acid, dodecanoic acid, and combinations thereof. The molybdenum salts have decomposition temperatures higher than 210° C. The catalyst precursors can form a hydroprocessing molybdenum sulfide catalyst in heavy oil feedstocks. Also disclosed are methods for making catalyst precursors and hydrocracking heavy oil using active catalysts. 1. A molybdenum catalyst precursor composition comprising: a plurality of molybdenum atoms; and', 'a plurality of carboxylate anions coordinated with each molybdenum atom, each of which has at least 8 carbon atoms and is selected from the group of (a) aromatic carboxylate anions, (b) alicyclic carboxylate anions, (c) branched, unsaturated and aliphatic carboxylate anions, and mixtures thereof;', 'wherein the molybdenum catalyst precursor is hydrocarbon soluble and has a first peak decomposition temperature of at least 210° C., 'a molybdenum catalyst precursor composed of2. A molybdenum catalyst precursor composition as in claim 1 , wherein the ratio of carboxylate anions to molybdenum atoms in the molybdenum catalyst precursor is less than 4:1.3. A molybdenum catalyst precursor composition as in claim 1 , wherein the molybdenum atoms in the molybdenum catalyst precursor have a valence in a range of about 4+ to 6+.4. A molybdenum catalyst precursor composition as in claim 1 , wherein the plurality of carboxylate anions are provided by at least one carboxylic acid selected from the group consisting of 3-cyclopentylpropionic acid claim 1 , cyclohexanebutyric acid claim 1 , biphenyl-2- ...

Hydroconversion Multi-Metallic Catalyst and Method For Making Thereof

The invention relates to a self-supported mixed metal sulfide (MMS) catalyst for hydrotreating hydrocarbon feedstock and to a method for preparing the catalyst. The self-supported MMS catalyst contains Ni:W in a mole ratio of 1:3 to 4:1, on a transition metal basis. The self supported MMS catalyst is characterized as having an HYD reaction rate constant of at least 15% higher than that of a catalyst comprising nickel sulfide alone or a catalyst comprising tungsten sulfide alone, when compared on same metal molar basis in hydrotreating of benzene as a feedstock at identical process conditions.

Hydroconversion Multi-Metallic Catalysts and Method for Making Thereof

The invention relates to a self-supported mixed metal sulfide (MMS) catalyst for hydrotreating hydrocarbon feedstock and to a method for preparing the catalyst. The self-supported MMS catalyst consists essentially of molybdenum sulfide and tungsten sulfide, wherein the catalyst contains at least 0.1 mol % of Mo and at least 0.1 mol % of W, on a transition metal basis. 1. A self-supported mixed metal sulfide (MMS) catalyst consisting essentially of molybdenum sulfide and tungsten sulfide , wherein the catalyst contains at least 0.1 mol % of Mo and at least 0.1 mol % of W , on a transition metal basis.2. The self-supported MMS catalyst of claim 1 , wherein the catalyst is characterized as having an HDS reaction rate constant of at least 10% higher than that of a catalyst comprising molybdenum sulfide alone or a catalyst comprising tungsten sulfide alone claim 1 , when compared on same metal molar basis in hydrotreating a Heavy Coker Gas Oil as a feedstock under process conditions as indicated in Table E.3. The self-supported MMS catalyst of claim 2 , wherein the HDS reaction rate constant is at least 15% higher than that of a catalyst comprising molybdenum sulfide alone or a catalyst comprising tungsten sulfide alone claim 2 , when compared on the same metal molar basis in hydrotreating of a Heavy Coker Gas Oil as a feedstock under process conditions as indicated in Table E.4. The self-supported MMS catalyst of claim 1 , wherein the catalyst is characterized as having a hydrogenolysis (HYL) reaction rate constant of at least 10% higher than a catalyst comprising molybdenum sulfide alone or a catalyst comprising tungsten sulfide catalyst alone claim 1 , when compared on same metal molar basis in hydrotreating a diphenylether under process conditions as indicated in Table C.5. The self-supported MMS catalyst of claim 4 , wherein the HYL reaction rate constant is at least 15% higher than that of a catalyst comprising molybdenum sulfide alone or a catalyst comprising ...

Hydroconversion Multi-Metallic Catalysts and Method for Making Thereof

A self-supported mixed metal sulfide (MMS) catalyst for hydrotreating hydrocarbon feedstock is disclosed. The self-supported MMS catalyst is characterized by an HDN reaction rate constant of at least 100 g feed hrg catalystassuming first order kinetics, and an HDS reaction rate constant of at least 550 g feed hrg catalystassuming first order kinetics in hydrotreating of a Heavy Coker Gas Oil as a feedstock with properties indicated in Table A and at given process conditions as indicated in Table E. In one embodiment, the catalyst is characterized as having a multi-phased structure comprising five phases: a molybdenum sulfide phase, a tungsten sulfide phase, a molybdenum tungsten sulfide phase, an active nickel phase, and a nickel sulfide phase. 1. A self-supported mixed metal sulfide (MMS) catalyst comprising molybdenum sulfide , nickel sulfide , and tungsten sulfide , wherein the catalyst is characterized as having an HDN reaction rate constant of at least 100 g feed hrg catalyst assuming first order kinetics , and an HDS reaction rate constant of at least 550 g feed hrg catalyst assuming first order kinetics in hydrotreating of a Heavy Coker Gas Oil as a feedstock with properties indicated in Table A and under process conditions as indicated in Table E.2. The self-supported MMS catalyst of claim 1 , wherein the catalyst is characterized as having an HDN reaction rate constant of at least 4 hrassuming first order kinetics claim 1 , and an HDS reaction rate constant of at least 5 hr claim 1 , assuming first order kinetics in hydrotreating of a Heavy Vacuum Gas Oil as a feedstock with properties indicated in Table B and under process conditions as indicated in Table F.3. The self-supported MMS catalyst of claim 1 , wherein the catalyst is characterized as having an HYD reaction rate constant and an HYL reaction rate constant of at least 10% higher than the rate constants of a catalyst comprising nickel sulfide and molybdenum sulfide claim 1 , or a catalyst comprising ...

Hydroconversion Multi-Metallic Catalysts and Method for Making Thereof

The invention relates to a self-supported mixed metal sulfide (MMS) catalyst for hydrotreating hydrocarbon feedstock and to a method for preparing the catalyst. The MMS catalyst has molar ratios of metal components Ni:Mo:W in a region defined by five points ABCDE of a ternary phase diagram, and wherein the five points ABCDE are defined as: A (Ni=0.72, Mo=0.00, W=0.25), B (Ni=0.25, Mo=0.00, W=0.75), C (Ni=0.25, Mo=0.25, W=0.50), D (Ni=0.60, Mo=0.25, W=0.15), E (Ni=0.72, Mo=0.13, W=0.15). 1. A self-supported mixed metal sulfide (MMS) catalyst comprising molybdenum sulfide , nickel sulfide , and tungsten sulfide , and wherein the catalyst is characterized as having molar ratios of metal components Ni:Mo:W in a region defined by five points ABCDE of a ternary phase diagram , and wherein the five points ABCDE are defined as: A (Ni=0.72 , Mo=0.00 , W=0.25) , B (Ni=0.25 , Mo=0.00 , W=0.75) , C (Ni=0.25 , Mo=0.25 , W=0.50) , D (Ni=0.60 , Mo=0.25 , W=0.15) , E (Ni=0.72 , Mo=0.13 , W=0.15).2. The self-supported MMS catalyst of claim 1 , wherein the catalyst is characterized as having a molar ratio of metal components Ni:Mo:W in a range of:0.33≦Ni/(W+Mo)≦2.57;0.00≦Mo/(Ni+W)≦0.33; and0.18≦W/(Ni+Mo)≦3.00.3. The self-supported MMS catalyst of claim 1 , wherein the catalyst is characterized as having molar ratios of metal components Ni:Mo:W in a region defined by six points ABCDEF of a ternary phase diagram claim 1 , and wherein the six points ABCDEF are defined as: A (Ni=0.67 claim 1 ,Mo=0.00 claim 1 ,W=0.33) claim 1 , B (Ni=0.67 claim 1 , Mo=0.10 claim 1 , W=0.23) claim 1 , C (Ni=0.60 claim 1 , Mo=0.15 claim 1 , W=0.25) claim 1 , D (Ni=0.52 claim 1 , Mo=0.15 claim 1 , W=0.33) claim 1 , E (Ni=0.52 claim 1 , Mo=0.06 claim 1 , W=0.42) claim 1 , F (Ni=0.58 claim 1 , Mo=0.0 claim 1 , W=0.42).4. The self-supported MMS catalyst of claim 1 , wherein the catalyst is characterized as having a molar ratio of metal components Ni:Mo:W in a range of:1.08<=Ni/(Mo+W)<=2.030<=Mo/(Ni+W)<=0.18; ...

Hydroconversion Multi-Metallic Catalysts and Method for Making Thereof

The invention relates to a self-supported mixed metal sulfide (MMS) catalyst for hydrotreating hydrocarbon feedstock and to a method for preparing the catalyst. The MMS catalyst is characterized as having a multi-phased structure comprising five phases: a molybdenum sulfide phase, a tungsten sulfide phase, a molybdenum tungsten sulfide phase, an active nickel phase, and a nickel sulfide phase. 1. A self-supported mixed metal sulfide (MMS) catalyst comprising molybdenum sulfide , nickel sulfide , and tungsten sulfide , wherein the catalyst is characterized as having a multi-phased structure comprising five phases: a molybdenum sulfide phase , a tungsten sulfide phase , a molybdenum tungsten sulfide phase , an active nickel phase , and a nickel sulfide phase.2. The self-supported MMS catalyst of claim 1 , wherein the molybdenum tungsten sulfide phase comprising at least a layer claim 1 , wherein the at least a layer contains at least one of: a) molybdenum sulfide and tungsten sulfide; b) tungsten isomorphously substituted into molybdenum sulfide as individual atoms or as tungsten sulfide domains; c) molybdenum isomorphously substituted into tungsten sulfide as individual atoms or as molybdenum sulfide domains; and d) mixtures thereof.3. The self-supported MMS catalyst of claim 2 , wherein the molybdenum sulfide and tungsten sulfide phase comprises 1 to 6 layers.4. The self-supported MMS catalyst of claim 2 , wherein the at least a layer comprises tungsten isomorphously substituted into molybdenum sulfide as individual atoms forming an intralayer atomic mixture.5. The self-supported MMS catalyst of claim 2 , wherein the at least a layer comprises tungsten isomorphously substituted into molybdenum sulfide as tungsten domains.6. The self-supported MMS catalyst of claim 2 , wherein the at least a layer comprises molybdenum isomorphously substituted into tungsten sulfide as individual atoms forming an intralayer atomic mixture.7. The self-supported MMS catalyst of claim 2 ...

Hydroconversion Multi-Metallic Catalysts and Method for Making Thereof

The invention relates to a method for preparing a self-supported mixed metal sulfide (MMS) catalyst for hydrotreating hydrocarbon feedstock. The method comprises mixing a sufficient amount of a nickel (Ni) metal precursor, a sufficient amount of a molybdenum (Mo) metal precursor, and a sufficient amount of a tungsten (W) metal precursor to produce a catalyst precursor having a molar ratio Ni:Mo:W in relative proportions defined by a region of a ternary phase diagram showing transition metal elemental composition in terms of nickel, molybdenum, and tungsten mol-%, wherein the region is defined by five points ABCDE and wherein the five points are: A (Ni=0.72, Mo=0.00, W=0.28), B (Ni=0.55, Mo=0.00, W=0.45), C (Ni=0.48, Mo=0.14, W=0.38), D (Ni=0.48, Mo=0.20, W=0.33), E (Ni=0.62, Mo=0.14, W=0.24); and sulfiding the catalyst precursor under conditions sufficient to convert the catalyst precursor into a sulfide catalyst. 1. A process for making a self-supported mixed metal sulfide (MMS) catalyst comprising molybdenum sulfide , nickel sulfide , and tungsten sulfide , the process comprising:mixing a sufficient amount of a nickel (Ni) metal precursor, a sufficient amount of a molybdenum (Mo) metal precursor, and a sufficient amount of a tungsten (W) metal precursor to produce a catalyst precursor having a molar ratio of metal components Ni:Mo:W in relative proportions defined by a region of a ternary phase diagram showing transition metal elemental composition in terms of nickel, molybdenum, and tungsten mol-%, wherein the region is defined by five points ABCDE and wherein the five points are: A (Ni=0.72, Mo=0.00, W=0.28), B (Ni=0.55, Mo=0.00, W=0.45), C (Ni=0.48, Mo=0.14, W=0.38), D (Ni=0.48, Mo=0.20, W=0.33), E (Ni=0.62, Mo=0.14, W=0.24); andsulfiding the catalyst precursor under conditions sufficient to convert the catalyst precursor into a sulfide catalyst.2. The process of claim 1 , wherein the amounts of a Ni metal precursor claim 1 , a Mo metal precursor claim 1 , and ...

CATALYST PRECURSOR FOR HYDROCRACKING REACTION AND METHOD FOR HYDROCRACKING HEAVY OIL BY USING SAME

The present invention relates to a catalyst precursor for forming a molybdenum disulfide catalyst through a reaction with sulfur in heavy oil and to a method for hydrocracking heavy oil by using same. According to the present invention, the yield of a low-boiling liquid product with a high economic value in the products by heavy oil cracking can be increased, and the yield of a relatively uneconomical gas product or coke (toluene insoluble component), which is a byproduct, can be significantly lowered. 1. A catalyst precursor for a hydrocracking reaction represented by the following Chemical Formula 1 or Chemical Formula 2 , which reacts with sulfur in a heavy oil to produce a molybdenum disulfide catalyst:{'br': None, 'sub': 2', '2', '2, 'Mo(O)(O)L\u2003\u2003[Chemical Formula 1]'}{'br': None, 'sub': 4', '2, 'Mo(CO)L′\u2003\u2003[Chemical Formula 2]'}whereinL and L′ are a ligand having a coordination number of 1, containing phosphorus as a central element.3. The catalyst precursor for a hydrocracking reaction of claim 2 , wherein Rto Rof Chemical Formula 3 are independently of one another hydroxy claim 2 , C-Calkoxy claim 2 , C-Ccycloalkyloxy claim 2 , or C-Caryloxy.4. The catalyst precursor for a hydrocracking reaction of claim 2 , wherein Rto Rof Chemical Formula 3 are independently of one another C-Calkyl claim 2 , C-Ccycloalkyl claim 2 , C-Ccycloalkyl C-Calkyl claim 2 , or C-Calkyl C-Ccycloalkyl.5. The catalyst precursor for a hydrocracking reaction of claim 2 , wherein Rto Rof Chemical Formula 3 are independently of one another C-Caryl claim 2 , C-Caryl C-Calkyl claim 2 , or C-Calkyl C-Caryl.7. The catalyst precursor for a hydrocracking reaction of claim 6 , wherein Rto Rof Chemical Formula 4 are independently of one another C-Calkyl claim 6 , C-Ccycloalkyl claim 6 , C-Ccycloalkyl C-Calkyl claim 6 , or C-Calkyl C-Ccycloalkyl.8. The catalyst precursor for a hydrocracking reaction of claim 1 , wherein the molybdenum disulfide catalyst is a molybdenum disulfide ...

Doped carbonaceous materials for photocatalytic removal of pollutants under visible light, making methods and applications of same

A method of synthesizing a doped carbonaceous material includes mixing a carbon precursor material with at least one dopant to form a homogeneous/heterogeneous mixture; and subjecting the mixture to pyrolysis in an inert atmosphere to obtain the doped carbonaceous material. A method of purifying water includes providing an amount of the doped carbonaceous material in the water as a photocatalyst; and illuminating the water containing the doped carbonaceous material with visible light such that under visible light illumination, the doped carbonaceous material generates excitons (electron-hole pairs) and has high electron affinity, which react with oxygen and water adsorbed on its surface forming reactive oxygen species (ROS), such as hydroxyl radicals and superoxide radicals, singlet oxygen, hydrogen peroxide, that, in turn, decompose pollutants and micropollutants.

METHOD FOR PREPARING CATALYSTS FOR PRODUCING ALCOHOLS FROM SYNTHESIS GAS

The present invention relates to a method of preparing catalysts based on molybdenum sulphide, with an alkaline promoter incorporated, said catalysts being employed in the production of alcohols, especially ethanol, from synthesis gas. The method involves reaction of molybdenum hexacarbonyl (Mo(CO)) with sulphur, so as to generate molybdenum sulphide, in which an alkaline promoter is then incorporated, so as to obtain a solid catalyst for application in processes of production of alcohols from synthesis gas, selective for ethanol. 1. METHOD OF PREPARING CATALYSTS FOR PRODUCING ALCOHOLS FROM SYNTHESIS GAS , characterised in that it comprises the following steps:a) adding an organic solvent to a reaction vessel, this then being filled with an inert gas so that in the reaction vessel the proportion of solvent is 1/3 and of inert gas is 2/3 (by volume);b) adding sulphur, under inert atmosphere and with reflux, to the reaction vessel containing the mixture of solvent and inert gas, so that the sulphur/solvent ratio is 0.0145 (by weight);c) heating the mixture obtained in (b) to temperatures between 20° C. and 140° C., for a period of time between 5 and 20 minutes, until all the sulphur has dissolved, and then cooling the mixture to room temperature (between 20° C. and 30° C.);{'sub': 6', '6, 'd) adding molybdenum hexacarbonyl (Mo(CO)) to the mixture, so that the S/Mo(CO)ratio is 0.242 (by weight);'}e) heating the mixture obtained in (d) to 140° C., maintaining this temperature for a period of time from 5 to 180 minutes, until there is formation of a black powder comprising molybdenum sulphide;f) dry filtration of the black powder of molybdenum sulphide formed with the aid of a drying agent, the filtrate then being submitted to thermal treatment, under a stream of inert gas, for a period of time from 30 to 120 minutes, at a temperature varying from 500° C. to 700° C.;g) adding an alkaline promoter to the black powder of molybdenum sulphide, already filtered and submitted ...

PRODUCTION OF PRODUCTS FROM NATURAL RESOURCES

The method disclosed herein relates to two stage catalytic processes for converting syngas to acetic acid, acrylic acid and/or propylene. More specifically, the method described and claimed herein relate to a method of producing acrylic acid and acetic acid comprising the steps of: a) providing a feedstream comprising syngas; b) contacting the feedstream with a first catalyst to produce a first product stream comprising C-Colefins and/or C-Cparaffins; and c) contacting the first product stream with oxygen gas and a second catalyst, thereby producing a second product stream comprising acrylic acid and acetic acid, wherein there is no step for separating the components of the first product stream before the first product stream is contacted with the second catalyst. 1. A method of producing acrylic acid and acetic acid comprising the steps of:a) providing a feedstream comprising syngas;{'sub': 2', '3', '2', '3, 'b) a step consisting of contacting the feedstream with a first catalyst to produce a first product stream comprising C-Colefins and/or C-Cparaffins; and'}c) contacting the first product stream with oxygen gas and a second catalyst, thereby producing a second product stream comprising acrylic acid and acetic acid,wherein there is no step for separating the components of the first product stream before the first product stream is contacted with the second catalyst.2. The method of claim 1 , wherein the method further comprises separating the acetic acid and the acrylic acid.3. The method of claim 1 , wherein the first catalyst comprises a mixed metal oxide represented by the formula{'br': None, 'sub': a2', 'b2', 'z2', 'y2', 'd2', 'f2, 'CoMnLaPM2O,'}wherein a2 is 1;wherein b2 is from 0.8 to 1.2;wherein z2 is greater than 0 to 0.5;wherein y2 is greater than 0 to 0.5;wherein M2 comprises an alkali metal, alkaline earth metal, or transition metal, or a mixture thereof,wherein d2 is greater than 0 to 0.5; andwherein f2 is a number determined by the valence ...

METHOD OF PREPARING SILICA SUPPORTED CoMoS HYDRODESULFURIZATION CATALYSTS

A method of preparing hydrodesulfurization catalysts having cobalt and molybdenum sulfide deposited on a support material containing mesoporous silica. The method utilizes a sulfur-containing silane that dually functions as a silica source and a sulfur precursor. The method involves an one-pot strategy for hydrothermal treatment and a single-step calcination and sulfidation procedure. The application of the hydrodesulfurization catalysts in treating a hydrocarbon feedstock containing sulfur compounds to produce a desulfurized hydrocarbon stream is also specified. 1: A method of preparing a CoMoS hydrodesulfurization catalyst , the method comprising:mixing a molybdenum precursor, a cobalt precursor, a mercaptoalkyltrialkoxysilane, a structural directing surfactant, an acid, and a solvent to form a reaction mixture;hydrothermally treating the reaction mixture to form a dried mass; andcalcining the dried mass in an activation gas thereby forming the CoMoS hydrodesulfurization catalyst,wherein:the activation gas is at least one selected from the group consisting of air, argon, nitrogen, helium, hydrogen, and carbon monoxide; andthe CoMoS hydrodesulfurization catalyst comprises cobalt and molybdenum sulfide disposed on a support material comprising a mesoporous silica.2: The method of claim 1 , wherein the CoMoS hydrodesulfurization catalyst is not subjected to a sulfidation with a sulfidation reagent.3: The method of claim 1 , wherein the mercaptoalkyltrialkoxysilane is at least one selected from the group consisting of (mercaptomethyl)trimethoxysilane claim 1 , (mercaptomethyl)triethoxysilane claim 1 , (mercaptomethyl)tripropoxysilane claim 1 , (2-mercaptoethyl)trimethoxysilane claim 1 , (2-mercaptoethyl)triethoxysilane claim 1 , (2-mercaptoethyl)tripropoxysilane claim 1 , (3-mercaptopropyl)trimethoxysilane claim 1 , (3-mercaptopropyl)triethoxysilane claim 1 , and (3-mercaptopropyl)tripropoxysilane.4: The method of claim 3 , wherein the mercaptoalkyltrialkoxysilane is ...

MONATOMIC METAL-DOPED FEW-LAYER MOLYBDENUM DISULFIDE ELECTROCATALYTIC MATERIAL, PREPARING METHOD THEREOF, AND METHOD FOR ELECTROCATALYTIC NITROGEN FIXATION

The present invention provides a monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material, a preparing method thereof, and a method for electrocatalytic nitrogen fixation. The material has a few-layer ultra-thin and irregular flake-like microstructure with a length and a width of nanometer scale. A doping metal in the monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material is dispersed in a form of single atoms. When the catalyst is used in electrochemical reduction of N, a Faradic efficiency in selective reduction of Ninto NH is 18% or above, and stability of the catalyst is better. 1. A monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material , which has a few-layer ultra-thin and irregular flake-like microstructure with a length and a width of nanometer scale , and wherein the doping metal in the monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material is dispersed in a form of single atoms.2. The monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material according to claim 1 , wherein the monatomic metal in the monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material is for non-substitute doping claim 1 , and the few-layer ultra-thin and irregular flake has a length and width of 50-200 nm claim 1 , a thickness of 0.5-3 nm and 1-4 layers on average.3. The monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material according to claim 1 , wherein the monatomic metal comprises iron claim 1 , ruthenium claim 1 , platinum claim 1 , palladium claim 1 , and lanthanum claim 1 , and a doped amount is 0.2%-3%.4. A method for preparing the monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material according to claim 1 , comprising the following steps:1) performing an ultrasonic process to flower-ball-shaped molybdenum disulfide to carry out an exfoliation, to obtain a few-layer molybdenum disulfide solution ...

METHOD FOR DEGRADING AN ORGANIC MATERIAL AND METHOD FOR STERILIZING

A method for manufacturing a molybdenum disulfide powder includes conducting a precursor solution preparation step and a hydrothermal synthesis step. The precursor solution preparation step includes providing sodium molybdenum oxide dihydrate and thiourea, and conducting a mixing step. In the mixing step, an acid solution is mixed with the sodium molybdenum oxide dihydrate and the thiourea by titrating so as to form a precursor solution. In the hydrothermal synthesis step, the precursor solution is put into a hydrothermal container for reacting at a temperature ranging from 100° C. to 350° C. for 8 hours to 40 hours, thus the molybdenum disulfide powder is formed. 1. A method for degrading an organic material , comprising:providing a molybdenum disulfide powder, wherein the molybdenum disulfide powder is stacked from a plurality of layered structures, and at least one of the layered structures is an odd-layer structure;conducting a contacting step, wherein the molybdenum disulfide powder is contacted with a medium, and the medium comprises at least one organic material and water; andconducting a degrading step, wherein a mechanical perturbation is generated in the medium to polarize the molybdenum disulfide powder, and a pair of electron and hole are generated for degrading the organic material.2. The method for degrading the organic material of claim 1 , wherein the medium is an aqueous solution.3. The method for degrading the organic material of claim 2 , wherein the organic material is rhodamine or methylene blue.4. The method for degrading the organic material of claim 2 , wherein the mechanical perturbation is generated by an ultrasonic wave.5. The method for degrading the organic material of claim 1 , wherein the medium is an air.6. The method for degrading the organic material of claim 5 , wherein the organic material is an organic gas.7. A method for sterilizing claim 5 , comprising:providing a molybdenum disulfide powder, wherein the molybdenum disulfide ...

NICKEL CONTAINING MIXED METAL-OXIDE/CARBON BULK HYDROPROCESSING CATALYSTS AND THEIR APPLICATIONS

The current invention relates a bulk catalyst precursor (i.e. no support material is added as such) comprising Ni and Mo and/or W and an organic component, wherein the molar ratio of C:(Mo+W) ranges from 1.5 to 10. The bulk catalyst precursor is prepared from a mixture of metal-precursors with an organic agent. The organic agent is partly decomposed to form a mixed metal-oxide/C phase which is in effect the bulk catalyst precursor. This bulk catalyst precursor (i) is effectively insoluble in water (ii) does not have any appreciable pore volume or surface area and (iii) does not contain a (nano)crystalline metal-oxide phase as characterized by XRD. A bulk catalyst is made from the bulk catalyst precursor. 1. A NiW , NiMo or NiMoW bulk catalyst precursor composition comprising nickel oxide , and molybdenum oxide or tungsten oxide or mixtures thereof , and an organic component prepared from an organic additive , wherein the total amount of molybdenum oxide and tungsten oxide is at least 30 wt % , the molar ratio of nickel to molybdenum plus tungsten is higher than 0.05 , the molar ratio of carbon to molybdenum plus tungsten is between 1.5 and 10; and wherein the organic additive is selected from Acetic acid , Aspartic acid , Citric acid , Formic acid , Fumaric acid , Gluconic acid , Glutamic acid , Glyoxylic acid , Ketoglutaric acid , Maleic acid , Malic acid , Oxaloacetic acid , Propionic acid , Pyruvic acid , Succinic acid , Fructose , Glucose , Lactose , Saccharose , Sorbitol , Xylitol , Serine and mixtures thereof.2. The bulk catalyst precursor of further comprising a BET-SA as measured by Nphysisorption of <40 m/g.3. The bulk catalyst precursor of further comprising Ni-crystals detected by transmission electron microscopy technique (TEM).4. The bulk catalyst precursor of further comprising a peak at 45° 2 theta in a XRD pattern recorded using X-ray radiation with a wavelength of 1.54 Å.5. The bulk catalyst precursor of characterized by the absence of any peaks ...

HIGH SURFACE AREA GRAPHENE-SUPPORTED METAL CHALCOGENIDE ASSEMBLY

A composition comprising at least one graphene-supported assembly, which comprises a three-dimensional network of graphene sheets crosslinked by covalent carbon bonds, and at least one metal chalcogenide compound disposed on said graphene sheets, wherein the chalcogen of said metal chalcogenide compound is selected from S, Se and Te. Also disclosed are methods for making and using the graphene-supported assembly, including graphene-supported MoS. Monoliths with high surface area and conductivity can be achieved. Lower operating temperatures in some applications can be achieved. Pore size and volume can be tuned. Electrochemical methods can be used to make the materials. 1. A composition comprising at least one graphene-supported assembly , which comprises (i) a three-dimensional network of graphene sheets crosslinked by covalent carbon bonds and (ii) at least one metal chalcogenide compound disposed on said graphene sheets , wherein the chalcogen of said metal chalcogenide compound is selected from S , Se and Te.2. The composition of claim 1 , wherein metal chalcogenide compound is a catalyst for hydrogenation claim 1 , hydrodeoxygenation claim 1 , hydrodesulfurization claim 1 , hydrodenitrogenation claim 1 , and/or hydrocracking.3. The composition of claim 1 , wherein the graphene-supported assembly is electrically conductive.4. The composition of claim 1 , wherein the graphene-supported assembly has a conductivity of at least 0.5 S/cm.5. The composition of claim 1 , wherein the graphene-supported assembly is a monolith having a size of at least 1 mm claim 1 , or in the form of a powder produced by grinding or ball-milling said monolith.6. The composition of claim 1 , wherein the graphene-supported assembly has an elastic modulus of at least 10 MPa.7. The composition of claim 1 , wherein the chalcogen is S.8. The composition of claim 1 , wherein the metal chalcogenide compound comprises one or more of Mo claim 1 , W claim 1 , Fe claim 1 , Cd claim 1 , In claim 1 , ...

Method for rejuvenating a nonregenerated spent catalyst from a process for the hydrodesulfurization of gasolines

The invention relates to a process for the rejuvenation of an at least partially spent catalyst resulting from a hydrotreating process, said at least partially spent catalyst resulting from a fresh catalyst comprising a metal from group VIII, a metal from group VIb, an oxide support, and optionally phosphorus, said at least partially spent catalyst additionally comprising carbon in a content of between 2% and 20% by weight, with respect to the total weight of the at least partially spent catalyst, and sulfur in a content of between 1% and 8% by weight, with respect to the total weight of the at least partially spent catalyst, said process comprising the following stages: a) said spent catalyst is brought into contact with an impregnation solution containing a compound comprising a metal from group VIb, b) a drying stage is carried out at a temperature of less than 200° C.

Method for rejuvenating a catalyst of a hydroprocessing and/or hydrocracking process

The invention concerns a method for rejuvenating an at least partially used catalyst originating from a hydroprocessing and/or hydrocracking process, the at least partially used catalyst being derived from a fresh catalyst comprising at least one group VIII metal (in particular, Co), at least one group VIB metal (in particular, Mo), an oxide support, and optionally phosphorus, the method comprising the steps: a) regenerating the at least partially used catalyst in a gas stream containing oxygen at a temperature between 300° C. and 550° C. so as to obtain a regenerated catalyst, b) then placing the regenerated catalyst in contact with phosphoric acid and an organic acid, each having acidity constant pKa greater than 1.5, c) performing a drying step at a temperature less than 200° C. without subsequently calcining it, so as to obtain a rejuvenated catalyst.

On-Line Sulfiding Apparatus and Process

An apparatus and process for passivating catalysts wherein an inert gas is used to administer a precise, measurable amount of passivating agent to a catalyst in a substantially safer manner than conventional means. The inventive apparatus at least includes a first container comprising at least one inert gas, a second container comprising at least one passivating agent, and a reactor comprising at least one catalyst, the first container, second container, and reactor being fluidly connected by a plurality of conduits. The inventive process at least includes pressurizing a first container with an inert gas, filling a second container with passivating agent, providing a reactor containing a passivatable catalyst, mixing the inert with the passivating agent, forming a mixture of passivating agent and inert gas, and introducing the mixture of passivating agent and inert gas into the reactor. 1. An apparatus for passivating catalysts , consisting essentially of:a. a first container comprising at least one inert gas,b. a second container comprising at least one passivating agent, andc. a reactor comprising at least one catalyst,wherein the first container, second container, and reactor are fluidly connected by a plurality of conduits.2. The apparatus according to wherein the catalyst is a hydrogenation metal catalyst.3. The apparatus according to wherein the hydrogenation metal catalyst is selected from a group consisting of Pt claim 2 , Re claim 2 , Co claim 2 , Mo claim 2 , Pd claim 2 , Ni claim 2 , Fe claim 2 , Ir and mixtures thereof.4. The apparatus according to wherein the passivating agent is a sulfiding agent.5. The apparatus according to wherein the sulfiding agent is selected from the group consisting of carbon disulfide claim 4 , n-butyl mercaptan claim 4 , ethyl mercaptan claim 4 , di-tertiary nonyl polysulfide claim 4 , dimethyl disulfide claim 4 , dimethyl sulfide claim 4 , dimethyl sulfoxide claim 4 , hydrogen sulfide claim 4 , and mixtures thereof.6. The ...

Molybdenum sulfide, method for producing same, and hydrogen generation catalyst

Provided is a molybdenum sulfide that is ribbon-shaped and particularly suitable for a hydrogen generation catalyst. Disclosed are a ribbon-shaped molybdenum sulfide, in which 50 particles as measured by observation with a scanning electron microscope (SEM) have a shape of, on average, 500 to 10000 nm in length, 10 to 1000 nm in width, and 3 to 200 nm in thickness; a method for producing the ribbon-shaped molybdenum sulfide, including: (1) heating a molybdenum oxide at a temperature of 200 to 1000° C. in the presence of a sulfur source; or (2) heating a molybdenum oxide at a temperature of 100 to 800° C. in the absence of a sulfur source, and then heating the molybdenum oxide at a temperature of 200 to 1000° C. in the presence of a sulfur source; and a hydrogen generation catalyst including the ribbon-shaped molybdenum sulfide.

SLURRY HYDROCONVERSION CATALYSTS

Systems and methods are provided for slurry hydroconversion of a heavy oil feedstock, such as an atmospheric or vacuum resid, in the presence of an enhanced or promoted slurry hydroconversion catalyst system. The slurry hydroconversion catalyst system can be formed from a) a Group VIII non-noble metal catalyst precursor/concentrate (such as an iron-based catalyst precursor/concentrate) and b) a Group VI metal catalyst precursor/concentrate (such as a molybdenum-based catalyst precursor/concentrate) and/or a Group VI metal sulfided catalyst. 1. A method for forming a slurry catalyst , comprising:{'b': '10', 'dispersing a first catalyst precursor comprising iron and a second catalyst precursor comprising molybdenum in a hydrocarbonaceous material comprising a heavy oil fraction, an amount of molybdenum in the second catalyst precursor in the hydrocarbonaceous material being about 250 wppm or less, based on inclusion of the catalyst/system into a heavy oil feedstock to be hydroconverted, a weight ratio of the iron in the first catalyst precursor to the molybdenum in the second catalyst precursor in the hydrocarbonaceous material being at least ; and'}sulfiding the first catalyst precursor and the second catalyst precursor to form a sulfided catalyst system.2. The method of claim 1 , wherein the second catalyst precursor comprises phosphomolybdic acid and/or a different molybdenum heteropolyacid.3. The method of claim 1 , wherein the iron catalyst precursor comprises a water-soluble precursor; or wherein the iron catalyst precursor comprises a counter-ion or ligand comprising sulfate claim 1 , nitrate claim 1 , acetate claim 1 , citrate claim 1 , carbonyl (carbon monoxide as a ligand); or a combination thereof.4. The method of claim 1 , wherein dispersing the first catalyst precursor in the hydrocarbonaceous material comprises dispersing an aqueous solution of the first catalyst precursor in the hydrocarbonaceous material claim 1 , or wherein dispersing the second ...

SULFIDE-BASED ALKANE DEHYDROGENATION CATALYSTS

A catalyst for the dehydrogenation of alkanes to alkenes comprises a catalytically active material supported on a carrier, wherein the catalytically active material is a metallic sulfide (MeS) comprising Fe, Co, Ni, Cu, Mo or W or any combination of two or more metals selected from Pb, Sn, Zn, Fe, Co, Ni, Cu, Mo and W. The catalyst is regenerated in several steps. The dehydrogenation is carried out at a temperature between 450 and 650° C. and a pressure from 0.9 bar below ambient pressure to 5 bar above ambient pressure. 1. A catalyst for the dehydrogenation of alkanes to alkenes , said catalyst comprising a catalytically active material supported on a carrier , wherein the catalytically active material comprises a metallic sulfide (MeS) , which is a semiconductor , and wherein the catalyst is regenerated in several steps.2. The catalyst according to claim 1 , wherein the metal of the metallic sulfide comprises Fe claim 1 , Co claim 1 , Ni claim 1 , Cu claim 1 , Mo or W or any combination of two or more metals selected from Pb claim 1 , Sn claim 1 , Zn claim 1 , Fe claim 1 , Co claim 1 , Ni claim 1 , Cu claim 1 , Mo and W.3. The catalyst according to claim 1 , wherein the steps for regeneration comprise oxidation in dilute air claim 1 , conversion of the sulfide into the corresponding sulfate and conversion back to the sulfide by reduction in dilute hydrogen containing some hydrogen sulfide.4. The catalyst according to claim 3 , wherein the oxidation in dilute air is carried out at a temperature between 350 and 750° C.5. The catalyst according to claim 1 , wherein the carrier is treated with a dilute alkali compound and subsequently washed to remove acid sites.6. The catalyst according to claim 5 , wherein the dilute alkali compound is potassium carbonate or any other potassium compound.7. A process for the dehydrogenation of alkanes to the corresponding unsaturated alkenes and hydrogen (H) comprising contacting the alkane with a catalyst according to claim 1 , said ...

Hydroconversion Multi-Metallic Catalysts and Method for Making Thereof

The invention relates to a self-supported mixed metal sulfide (MMS) catalyst for hydrotreating hydrocarbon feedstock and to a method for preparing the catalyst. The MMS catalyst is characterized as having a BET surface area of at least 20 m 2 /g and a pore volume of at least 0.05 cm 3 /g. In one embodiment, the MMS catalyst is also characterized as having a multi-phased structure comprising five phases: a molybdenum sulfide phase, a tungsten sulfide phase, a molybdenum tungsten sulfide phase, an active nickel phase, and a nickel sulfide phase.

CATALYST FOR CONVERTING SYNGAS TO MIXED ALCOHOLS

Higher mixed alcohols are produced from syngas contacting a catalyst in a reactor. The catalyst has a first component of molybdenum or tungsten, a second component of vanadium, a third component of iron, cobalt, nickel or palladium and optionally a fourth component of a promoter. The first component forms alcohols, while the vanadium and the third component stimulates carbon chain growth to produce higher alcohols. 1. A process of establishing a catalyst for producing a mixture of alcohols from a syngas , comprising the steps of:a) providing a catalyst precursor, the catalyst precursor comprising molybdenum, cobalt and vanadium;b) locating the catalyst precursor in an interior of a reactor;c) closing the reactor to the atmosphere;d) providing a hydrogen agent in the reactor interior and pressurizing said reactor interior to 250-5,000 psig and heating the reactor interior and the catalyst precursor;e) passing a sulfiding agent over the catalyst precursor wherein the catalyst precursor forms a sulfided catalyst, the sulfided catalyst comprising molybdenum sulfide, cobalt sulfide and vanadium sulfide;f) passing the syngas over the sulfided catalyst in the reactor, the syngas comprising an amount of hydrogen to carbon monoxide of at least 0.5 hydrogen to 5.0 of carbon monoxide; andg) producing said mixed alcohols.3. The process of establishing a catalyst for producing a mixture of alcohols from a syngas of claim 1 , wherein the alcohol distribution of the mixed alcohols is comprised of 17 to 31 weight (wt) % methanol claim 1 , 39-49 wt % ethanol claim 1 , 19 to 29 wt % propanol claim 1 , 4 to 12 wt % butanol claim 1 , to 5 wt % pentanol claim 1 , the balance being 0 to 10 wt % hexanol claim 1 , heptanal claim 1 , octanol claim 1 , nonanol claim 1 , decanol claim 1 , ethers claim 1 , esters and hydrocarbons. This patent application is a divisional application of U.S. patent application Ser. No. 15/075,809, filed on Mar. 21, 2016, which is a continuation-in-part ...

CATALYST FOR SELECTIVE SYNTHESIS OF LOWER HYDROCARBONS FROM SYNGAS

The present disclosures and inventions relate to a catalyst composition for the selective conversion of a hydrogen/carbon monoxide mixture (syngas) to C-Chydrocarbons, wherein the catalyst composition, which can be optionally dispersed on a support material, has the formula 1. A catalyst comprising elements with the relative molar ratios represented by the formula{'br': None, 'sub': a', 'b', 'c', 'd', 'f, 'COMOSMO,'}wherein a is 1;wherein b is from 0.8 to 1.2;wherein c is from 1 to 2;wherein M comprises Zn, Ti, Zr, or Ni, or a mixture thereof,wherein d is from 0.000001 to 0.2; andwherein f is a number determined by the valence requirements of the other elements present in the catalyst.2. The catalyst of claim 1 , wherein M comprises Zn.3. The catalyst of claim 1 , wherein M comprises Ti.4. The catalyst of claim 1 , wherein M comprises Zr.5. The catalyst of claim 1 , wherein M comprises Ni.6. The catalyst of claim 1 , wherein b is 1.7. The catalyst of claim 1 , wherein c is 1.8. The catalyst of claim 1 , wherein d is from 0.001 to 0.01.9. (canceled)10. (canceled)11. A catalyst composition comprising the catalyst of and a support material.12. The catalyst of claim 11 , wherein the support material comprises AlO claim 11 , SiC claim 11 , TiC claim 11 , CeO claim 11 , AlPO claim 11 , ZrO claim 11 , silicon-carbide claim 11 , Molybdenum-carbide claim 11 , an alumino-silicate claim 11 , a zeolite claim 11 , or a molecular sieve claim 11 , or a mixture thereof.13. A method of producing C-Chydrocarbons comprising contacting syngas with a reduced form of the catalyst of claim 1 , thereby producing C-Chydrocarbons.14. (canceled)15. The method of claim 13 , wherein the selectivity for production of propane is greater than 50%.16. (canceled)17. The method of claim 13 , wherein the selectivity for production of ethane is greater than 40%.18. The method of claim 13 , wherein the method does not produce C-Calcohols.19. (canceled)20. (canceled)21. (canceled)22. The method of claim ...

MoS2 CATALYST SYSTEM FOR THE CONVERSION OF SUGAR ALCOHOL TO HYDROCARBONS

Cellulose and hemicellulose from biomass can be broken down to C6 and C5 sugars and further converted to corresponding sugar alcohols. It is now found that a new catalyst, MoS2, is active for the hydrogenation of sugar alcohols to hydrocarbons. Combining the technologies listed above allows us to convert the cellulose/hemicellulose to liquid hydrocarbons.

Process for preparing a catalytic composition for the hydroconversion of petroleum fractions

The invention relates to a method of preparing a catalytic composition comprising at least one non-noble metal from group VIII and at least one metal from group VIB of the periodic table. The invention also relates to the catalytic composition thus produced, which has a high specific activity in reactions involving the hydroprocessing of light and intermediate fractions, preferably in reactions involving the hydrotreatment of hydrocarbon streams, including hydrodesulphurisation (HDS), hydrodenitrogenation (HDN) and hydro-dearomatisation (HDA). 1. The catalytic composition comprising at least one Group VIII non-noble metal , at least one Group VIB non-noble metal , and carbon; and optionally , an inorganic oxide as a binder that can be in its oxidized state and/or partially reduced and/or sulfided.2. A catalytic composition in accordance with claim 1 , where the Group VIII non-noble metal is nickel and/or cobalt claim 1 , or a mixture thereof having a concentration between 20 and 50 wt. % of the total composition of oxides of the metals.3. A catalytic composition in accordance with claim 1 , where the Group VIB metal comprises molybdenum and/or tungsten having a composition between 30 and 50% of the total composition determined as oxides of the metals.4. A catalytic composition in accordance with claim 3 , where the Group VIB metal is molybdenum.5. A catalytic composition in accordance with claim 1 , where the carbon is in an amorphous state claim 1 , or forming carbides with the Group VIB and Group VIII metals claim 1 , having a concentration between 0.05 and 5 wt. % of the total concentration of the oxides of the metals.6. A catalytic composition in accordance with the claim 1 , wherein the Group VIII and the Group VIB metals comprise between 50 and 100 wt. % of the total catalytic composition determined as oxides of the metals.7. A catalytic composition in accordance with claim 1 , having an x-ray diffraction pattern corresponding to the alpha or beta molybdate ...

Multi-metallic Catalyst System And Use Of The Same In Preparing Upgraded Fuel From Biomass

The present disclosure provides a multi-metallic catalyst system comprising at least one support, and at least one promoter component and an active component comprising at least two metals uniformly dispersed on the support. The present disclosure also provides a process for preparing the multi-metallic catalyst system. Further, the present disclosure provides a process for preparing upgraded fuel from biomass. The process is carried out in two steps. In the first step, a biomass slurry is prepared and is heated in the presence of hydrogen and a multi-metallic catalyst that comprises at least one support, at least one promoter component, and an active component comprising at least two metals to obtain crude biofuel as an intermediate product. The intermediate product obtained in the first step is then cooled and filtered to obtain a filtered intermediate product. In the second step, the filtered intermediate product is hydrogenated in the presence of the multi-metallic catalyst to obtain the upgraded fuel. The fuel obtained from the process of the present disclosure is devoid of heteroatoms such as oxygen, nitrogen and sulfur. 1. A multi-metallic catalyst system comprising:i. at least one alumina support;ii. a promoter component impregnated on said at least one support; wherein said promoter is at least one selected from the group consisting of Niobium (Nb) and Phosphorous (P); andiii. an active component comprising cobalt and molybdenum, being uniformly dispersed on said at least one support.2. The catalyst system as claimed in claim 1 , wherein said catalyst system is characterized by having BET surface area in the range of 165 to 170 m/g claim 1 , pore volume in the range of 0.48 to 0.50 cc/g claim 1 , pore width in the range of 78 to 82 Å claim 1 , and total acidity in the range of 0.810 to 0.812 mmol/g.3. The catalyst system as claimed in claim 1 , wherein said support is in at least one form selected from the group consisting of spheres claim 1 , extrudates ...

CATALYST PREPARATION UNIT FOR USE IN PROCESSING OF HEAVY HYDROCARBONS

A catalyst preparation unit for producing an activated hydrocarbon-catalyst mixture. The catalyst preparation unit includes one or more catalyst reactant input conduits; a hydrocarbon input conduit; a water input conduit; one or more catalyst reactant mixing and conveyance systems for receiving and mixing catalyst reactants from the catalyst component input conduits and water provided by the water input conduit to provide one or more catalyst reactant solutions; one or more hydrocarbon mixing and conveyance systems for receiving and mixing the catalyst reactant solutions and hydrocarbons provided by the hydrocarbon input conduit to produce a hydrocarbon-catalyst reactant mixture; at least one reactor located downstream of the mixers, for receiving and activating the hydrocarbon-catalyst reactant mixture, thereby producing the activated hydrocarbon catalyst mixture; a gas/liquid separator located downstream of the reactor, for removing vapors and gas from the activated hydrocarbon-catalyst mixture; and an output conduit for transporting the activated hydrocarbon-catalyst mixture away from the catalyst preparation unit. 1. A catalyst preparation unit for producing an activated hydrocarbon-catalyst mixture , the catalyst preparation unit comprising:i) one or more catalyst reactant input conduits;ii) a hydrocarbon input conduit;iii) a water input conduit;iv) one or more catalyst reactant mixing and conveyance systems for receiving and mixing catalyst reactants from the catalyst component input conduits and water provided by the water input conduit to provide one or more catalyst reactant solutions;v) one or more hydrocarbon mixing and conveyance systems for receiving and mixing the catalyst reactant solutions and hydrocarbons provided by the hydrocarbon input conduit to produce a hydrocarbon-catalyst reactant mixture;vi) at least one reactor located downstream of the mixers, for receiving and activating the hydrocarbon-catalyst reactant mixture, thereby producing the ...

METHOD FOR PRODUCING A CATALYST

Molybdenum sulphide containing catalysts are provided which have been produced using a microemulsion approach. The catalysts thereby produced have a unique morphology which directly translates into improved performance in the conversion of syngas to alcohol and in the selectivity of this reaction towards producing ethanol. 141-. (canceled)42. A method of producing a catalyst including the steps of:(a) providing a non-polar solvent;(b) forming MoS2 within the non-polar solvent by combining, in aqueous solution added to the non-polar solvent, a sulfide compound, and a molybdenum compound; and(c) adding a salt of a transition metal selected from the group consisting of nickel, cobalt, and iron to the non-polar solvent;to thereby to form a water-in-oil emulsion and produce the catalyst.43. The method of claim 42 , wherein the step of forming the MoS2 within the non-polar solvent is achieved by: (i) adding an aqueous solution of the sulfide to the non-polar solvent claim 42 , and (ii) adding an aqueous solution of the molybdenum compound to the non-polar solvent.44. The method of claim 42 , wherein the non-polar solvent is selected from the group consisting of oils claim 42 , aliphatic hydrocarbons claim 42 , saturated cyclic hydrocarbons claim 42 , aromatic hydrocarbons claim 42 , and halogenated hydrocarbons.45. The method of claim 42 , wherein the aqueous solution of the molybdenum compound is added to the non-polar solvent containing the aqueous solution of the sulfide.46. The method of claim 42 , wherein the sulfide compound is any at least water-soluble sulfide source.47. The method of claim 42 , wherein the molybdenum compound is any molybdenum containing compound that is water soluble.48. The method of claim 47 , wherein the molybdenum compound is selected from the group consisting of ammonium molydates claim 47 , molybdenum oxides and water soluble alkali metal claim 47 , and alkaline earth metal molybdates.49. The method of claim 42 , wherein the salt of the ...

Hydrocarbon Conversion

The invention relates to the conversion of paraffinic hydrocarbon to oligomers of greater molecular weight and/or to aromatic hydrocarbon. The invention also relates to equipment and materials useful in such conversion, and to the use of such conversion for, e.g., natural gas upgrading. Corresponding olefinic hydrocarbon is produced from the paraffinic hydrocarbon in the presence of a dehydrogenation catalyst containing a catalytically active carbonaceous component. The corresponding olefinic hydrocarbon is then converted by oligomerization and/or dehydrocyclization in the presence of at least one molecular sieve catalyst. 1. A process for producing aromatics , comprising:{'sub': n+', 'm−, '(a) providing a feed which comprises ≧1 wt. % of a first hydrocarbon and further comprises a second hydrocarbon, wherein (i) the first hydrocarbon comprises C paraffinic hydrocarbon, (ii) the second hydrocarbon comprises C hydrocarbon, (iii) n is a positive integer ≧2 and m is a positive integer ≦n−1, and (iv) the feed has a first hydrocarbon:second hydrocarbon molar ratio in the range of from 0.001 to 100;'}{'sup': '2', '(b) providing a first multi-component catalyst, the first catalyst having dehydrogenation functionality and comprising (i) ≧10 wt. % of at least one inorganic oxide component having a surface area ≧10 m/g and a pore volume ≧0.1 ml/g, (ii) ≧0.01 wt. % of at least one catalytically active carbonaceous component, and (iii) ≧0.05 wt. % of at least one element selected from Groups 5-11 of the Periodic Table;'}(c) providing a second multi-component catalyst, the second catalyst having dehydrocyclization functionality and comprising ≧10 wt. % of a molecular sieve component and ≧0.005 wt. % of a dehydrogenation component comprising at least one element selected from Groups 3 to 13 of the Periodic Table;{'sub': n+', 'm−, "(d) reacting the feed in the presence of the first catalyst under catalytic dehydrogenation conditions effective for dehydrogenating ≧10 wt. % of the C ...

Production of products from natural resources

The method disclosed herein relates to two stage catalytic processes for converting syngas to acetic acid, acrylic acid and/or propylene. More specifically, the method described and claimed herein relate to a method of producing acrylic acid and acetic acid comprising the steps of: a) providing a feedstream comprising syngas; b) contacting the feedstream with a first catalyst to produce a first product stream comprising C 2 -C 3 olefins and/or C 2 -C 3 paraffins; and c) contacting the first product stream with oxygen gas and a second catalyst, thereby producing a second product stream comprising acrylic acid and acetic acid, wherein there is no step for separating the components of the first product stream before the first product stream is contacted with the second catalyst.

Electrocatalyst comprising a crumpled transition metal dichalcogenide support loaded with monodispersed metal nanoparticles

An electrocatalyst comprises a crumpled transition metal dichalcogenide support loaded with catalytic metal nanoparticles through spontaneous reduction reactions. The support can be prepared by hydrothermal conversion of 2D nanosheets to 3D hierarchically crumpled sheets. As an example, using crumpled MoSas a support, highly tunable Ru loadings were obtained using the electrostatic interaction between MoSand RuClin solution. Control over Ru loading was leveraged to produce Ru—MoSelectrocatalysts that demonstrate different nitrogen reduction reaction activities, and which show varying resistance to electrochemical sintering and deactivation. Further, these high surface area materials can be utilized for many applications, including electrocatalysts, supercapacitors, and batteries. 1. An electrocatalyst , comprising a plurality of catalytic metal nanoparticles monodispersed on a surface of a crumpled transition metal dichalcogenide support.2. The electrocatalyst of claim 1 , wherein the transition metal comprises molybdenum claim 1 , tungsten claim 1 , cobalt claim 1 , hafnium claim 1 , rhenium claim 1 , platinum claim 1 , palladium claim 1 , or zirconium.3. The electrocatalyst of claim 1 , wherein the chalcogenide comprises sulfur claim 1 , selenium claim 1 , tellurium claim 1 , or oxygen.4. The electrocatalyst of claim 1 , wherein the catalytic metal comprises a platinum-group metal.5. The electrocatalyst of claim 4 , wherein the platinum-group metal comprises gold claim 4 , platinum claim 4 , iridium claim 4 , palladium claim 4 , ruthenium claim 4 , rhodium claim 4 , rhenium claim 4 , or osmium.6. The electrocatalyst of claim 1 , wherein the plurality of catalytic metal nanoparticles covers from between 1% and 50% of the surface area of the crumpled transition metal dichalcogenide support.7. The electrocatalyst of claim 1 , wherein the size of the catalytic metal nanoparticles is approximately 1 nm.8. The electrocatalyst of claim 1 , wherein the transition metal ...

MIXED OXIDES OF TRANSITION METALS, HYDROTREATMENT CATALYSTS OBTAINED THEREFROM, AND PREPARATION PROCESS COMPRISING SOL-GEL PROCESSES

New sulfided metal catalysts are described, containing a metal X selected from Ni, Co and mixtures thereof, a metal Y selected from Mo, W and mixtures thereof, an element Z selected from Si, Al and mixtures thereof, and possibly an organic residue, obtained by the sulfidation of mixed oxide precursors, also new, having general formula (A) 14-. (canceled)817-. (canceled)18. A process for the preparation of the sulfided compound of claim 5 , effected “ex situ” or “in situ” in the presence of a sulfidation agent.19. The process according to claim 18 , effected at a temperature ranging from 300 to 500° C.21. The process according to claim 20 , wherein claim 20 , when Z is silicon claim 20 , the corresponding soluble compounds claim 20 , which can be dispersed or hydrolyzed claim 20 , are colloidal silica claim 20 , fumed silica and tetraalkyl ortho silicates wherein the alkyl group contains from 1 to 4 carbon atoms.22. The process according to claim 20 , wherein claim 20 , when Z is aluminium claim 20 , the corresponding soluble compound is aluminium lactate and the corresponding dispersible or hydrolyzable compounds are dispersible aluminas claim 20 , monohydrated aluminas AlOOH claim 20 , trihydrated aluminas Al(OH) claim 20 , aluminium oxide claim 20 , aluminium trialkoxides wherein the alkyl is linear or branched and can contain from 2 to 5 carbon atoms.23. The process according to claim 20 , wherein claim 20 , in the last step claim 20 , the total calcination is effected at a temperature of at least 450° C.24. The process according to claim 23 , wherein the total calcination is effected at a temperature higher than or equal to 450° C. and lower than or equal to 600° C.25. The process according to claim 20 , wherein the calcination is effected partially and at a temperature lower than 450° C.26. The process according to claim 25 , wherein the partial calcination is effected at a temperature ranging from 200 to 400° C.28. The process according to claim 27 , wherein ...

PROCESS FOR HYDROCONVERSION OF HEAVY HYDROCARBON FEEDSTOCK IN HYBRID REACTOR

The present invention relates to a process for hydroconversion of a heavy hydrocarbon feedstock in the presence of hydrogen, at least one supported solid catalyst and at least one dispersed solid catalyst obtained from at least one salt of a heteropolyanion combining molybdenum and at least one metal selected from cobalt and nickel in a Strandberg, Keggin, lacunary Keggin or substituted lacunary Keggin structure. 1. A process for hydroconversion of a heavy hydrocarbon feedstock in the presence of hydrogen , at least one supported solid catalyst and at least one dispersed solid catalyst , the at least one dispersed solid catalyst being obtained from at least one salt of a heteropolyanion combining molybdenum and at least one metal selected from cobalt and nickel in a Strandberg , Keggin , lacunary Keggin or substituted lacunary Keggin structure.2. The process as claimed in claim 1 , in which the at least one heteropolyanion salt satisfies:{'sub': (6-x)2', 'x', '2', 'm', 'n', '23, 'claim-text': [{'sup': 2+', '2+, 'M is the Ni cation or the Co cation,'}, 'H is hydrogen,', 'x is an integer between 0 and 2,', 'P is phosphorus,', 'Mo is molybdenum,', 'W is tungsten,', 'm is an integer between 1 and 5,', 'n is an integer between 0 and 4,', 'm+n=5,', 'O is oxygen,', {'sub': x', '2', 'm', 'n', '23, 'the structure HPMoWOis the negatively charged heteropolyanion, its charge being equal to x−6; or'}], 'the following formula (I) MHPMoWOin which{'sub': p', 'x/2', 'g', 'm', 'n', 'z', 'y', 'h, 'claim-text': [{'sup': '+', 'C is the H cation and/or a substituted or unsubstituted quaternary ammonium cation,'}, 'p is an integer between 0 and 6,', {'sup': 2+', '2+, 'X is the Ni cation or the Co cation,'}, 'x is an integer between 0 and 11,', 'p+x is an integer between 3 and 11,', 'A is phosphorus or silicon or boron,', 'g is 0 or 1,', 'Mo is molybdenum,', 'W is tungsten,', 'm is an integer between 1 and 12,', 'n is an integer between 0 and 11,', 'm+n=9 or 11 or 12,', 'X′ is an element ...

CATALYST FOR A SULPHUR RECOVERY PROCESS WITH CONCURRENT HYDROGEN PRODUCTION, METHOD OF MAKING THEREOF AND THE SULPHUR RECOVERY PROCESS WITH CONCURRENT HYDROGEN PRODUCTION USING THE CATALYST

Disclosed is a catalyst suitable for the catalytic oxidative cracking of a HS-containing gas stream, particularly in the event that the stream also contains methane and/or ammonia. The catalyst comprises iron and molybdenum supported by a carrier comprising aluminium. The carrier preferably is alumina. The iron and molybdenum preferably are in the form of sulphides. Also disclosed is a method for the production of hydrogen from a HS-containing gas stream, comprising subjecting the gas stream to catalytic oxidative cracking so as to form Hand S, using a catalyst in accordance with any one of the preceding claims. 1. A catalyst suitable for the catalytic oxidative cracking of a HS-containing gas stream , the catalyst comprising iron and molybdenum supported by a carrier comprising aluminium.2. A catalyst according to claim 1 , wherein the iron is in the form of iron sulphide.3. A catalyst according to or claim 1 , wherein the molybdenum is in the form of molybdenum sulphide.4. A catalyst according to any one of the preceding claims claim 1 , wherein the carrier is made up of AlO.5. A catalyst according to any one of the preceding claims claim 1 , wherein the iron is present in the catalyst in a range of from 1 to 50% by weight claim 1 , preferably 2% by weight of the catalyst.6. A catalyst according to any one of the preceding claims claim 1 , wherein the molybdenum is present in the catalyst in a range of from 1 to 50% by weight claim 1 , preferably 6% by weight of the catalyst.7. A method for the production of hydrogen from a HS-containing gas stream claim 1 , comprising subjecting the gas stream to catalytic oxidative cracking so as to form Hand S claim 1 , using a catalyst in accordance with any one of the preceding claims.8. A method according to claim 7 , wherein the catalytic oxidative cracking is conducted with a molar ratio HS/Oin the feedstock higher than 2:1 claim 7 , preferably in the range of 2:1-6:1.9. A method according to claim 8 , wherein the ratio is ...

ION PAIR CATALYSIS OF TUNGSTATE AND MOLYBDATE

The present invention relates to ion pair catalysts (I) comprising the cationic bisguanidinium ligand (A) and diperoxomolybdate anion (B). The present invention also relates to ion pair catalysts (III) comprising the cationic bisguanidinium ligand (C) and peroxotungstate anion (D). It further relates to the use of the said catalysts in the manufacture of enantiomerically enriched sulfoxides. 2. The complex of claim 1 , wherein:{'sub': 1', '1-3', '3, 'each Rindependently represents Calkyl-phenyl, which phenyl group is substituted by from two to four Rsubstituents;'}{'sub': 2', '4, 'each Rindependently represents phenyl, which group is unsubstituted or substituted by from one to two Rsubstituents;'}{'sub': 3', '4', '1-6', '3-6', '5, 'each Rand Rindependently represents fluoro, branched or unbranched Calkyl, Ccycloalkyl, which latter two groups are unsubstituted or substituted by one or more halogen atoms) or OR;'}{'sub': 1-3', '3-6, 'R5 represents branched or unbranched Calkyl or Ccycloalkyl, which groups are unsubstituted or substituted by one or more halogen atoms.'}3. (canceled)4. The complex of claim 1 , wherein the organic cation (A) is enantioenriched.5. The complex of claim 1 , where the organic cation (A) is selected from:(i) 1,4-bis((4S,5S)-1,3-bis(3,5-di-tert-butylbenzyl)-4,5-diphenylimidazolidin-2-ylidene)piperazine-1,4-diium;(ii) 1,4-bis((4R,5R)-1,3-bis(3,5-di-tert-butylbenzyl)-4,5-diphenylimidazolidin-2-ylidene)piperazine-1,4-diium;(iii) 1,4-bis((4S,5S)-1,3-bis(3,5-di-tert-butyl-4-methoxybenzyl)-4,5-diphenylimidazolidin-2-ylidene)piperazine-1,4-diium;(iv) 1,4-bis((4R,5R)-1,3-bis(3,5-di-tert-butyl-4-methoxybenzyl)-4,5-diphenylimidazolidin-2-ylidene)piperazine-1,4-diium;(v) 1,4-bis((4S,5S)-1,3-bis(3,5-di-tert-butyl-4-fluorobenzyl)-4,5-diphenylimidazolidin-2-ylidene)piperazine-1,4-diium; and(vi) 1,4-bis((4R,5R)-1,3-bis(3,5-di-tert-butyl-4-fluorobenzyl)-4,5-diphenylimidazolidin-2-ylidene)piperazine-1,4-diium.6. The complex of claim 5 , where the organic ...

NANOSTRUCTURED PHOTOCATALYSTS AND DOPED WIDE-BANDGAP SEMICONDUCTORS

Photocatalysts for reduction of carbon dioxide and water are provided that can be tuned to produce certain reaction products, including hydrogen, alcohol, aldehyde, and/or hydrocarbon products. These photocatalysts can form artificial photosystems and can be incorporated into devices that reduce carbon dioxide and water for production of various fuels. Doped wide-bandgap semiconductor nanotubes are provided along with synthesis methods. A variety of optical, electronic and magnetic dopants (substitutional and interstitial, energetically shallow and deep) are incorporated into hollow nanotubes, ranging from a few dopants to heavily-doped semiconductors. The resulting wide-bandgap nanotubes, with desired electronic (p- or n-doped), optical (ultraviolet bandgap to infrared absorption in co-doped nanotubes), and magnetic (from paramagnetic to ferromagnetic) properties, can be used in photovoltaics, display technologies, photocatalysis, and spintronic applications. 1. A composition comprising uniformly doped wide-bandgap semiconductor nanotubes.2. The composition of claim 1 , wherein the uniformly doped wide-bandgap semiconductor nanotubes lack secondary phase diffraction peaks when subjected to energy dispersive x-ray spectroscopy.3. The composition of claim 1 , wherein the dopant is anionic.4. The composition of claim 1 , wherein the dopant is cationic.5. The composition of claim 1 , wherein the nanotubes are mono-doped.6. The composition of claim 1 , wherein the nanotubes are co-doped.7. The composition of claim 1 , wherein the nanotubes comprise titanium dioxide.8. The composition of claim 1 , wherein the nanotubes comprise tungsten oxide.9. The composition of claim 1 , wherein the nanotubes are n-type doped wide-bandgap semiconductor nanotubes.10. The composition of claim 1 , wherein the nanotubes are p-type doped wide-bandgap semiconductor nanotubes.11. The composition of claim 1 , wherein the nanotubes are doped with one of copper claim 1 , copper-nitrogen claim 1 ...

PROCESS FOR PREPARING HYDROCRACKING CATALYST COMPOSITIONS

A process for the preparation of a naphtha-selective hydrocracking catalyst comprising of from 3 to 4.8% wt of molybdenum, calculated as metal, and of from 1.5 to 3% wt of nickel, calculated as metal, which comprises loading a refractory oxide support comprising an alumina binder component and a zeolite Y component in a content of from 65 to 75 wt % based on the total weight of the catalyst, with nickel and molybdenum in the presence of citric acid, wherein the zeolite Y component has a unit cell size in the range of from 24.42 to 24.52 Å, a SAR in the range of from 8 to 15, and a surface area of from 850 to 1020 m/g. 1. A process for the preparation of a naphtha-selective hydrocracking catalyst comprising of from 3 to 4.8% wt of molybdenum , calculated as metal , and of from 1.5 to 3% wt of nickel , calculated as metal , which comprises loading a refractory oxide support comprising an alumina binder component and a zeolite Y component in a content of from 65 to 75 wt % based on the total weight of the catalyst , with nickel and molybdenum in the presence of a solution comprising citric acid , wherein the zeolite Y component has a unit cell size in the range of from 24.42 to 24.52 Å , a SAR in the range of from 10 to 15 , and a surface area of from 910 to 1020 m2/g.2. A process according to claim 1 , wherein nickel and molybdenum are co-mulled with the refractory oxide support components and extruded to form an extrudate.3. A process according to claim 1 , wherein nickel and molybdenum are loaded on a pre-formed refractory oxide support in a pore volume impregnation process.4. A process according to claim 2 , wherein the extrudate or the loaded refractory oxide support is calcined at a temperature in the range of from 450° C. to 850° C. to form a catalyst.5. A process according to claim 1 , which process further comprises a sulfidation step.6. A process for hydrocracking a hydrocarbonaceous feedstock claim 1 , which process comprises contacting thefeedstock at ...

METHOD FOR ACTIVATING HYDROTREATING CATALYSTS

The present invention relates to the use, in a method for in-situ activation of at least one hydrotreating, in particular hydrocracking, catalyst, of at least one nitrogen compound having at least one of the following characteristics: 1. A method for in-situ activation of a hydrotreating catalyst , comprising using at least one nitrogen compound having at least two of the following characteristics:a) a nitrogen content by weight in the range from 15 to 35 wt % relative to the total weight of the nitrogen compound;b) a number of nitrogen atoms in the range from 2 to 20 per molecule;c) a boiling point in the range from 140° C. to 300° C.; andd) said nitrogen compound being in liquid form at room temperature and atmospheric pressure.2. The method according to claim 1 , wherein the nitrogen compound has in addition a molecular weight in the range from 80 g.molto 300 g.moldesignated as characteristic e) hereinafter.3. The method according to claim 1 , wherein the nitrogen compound has a characteristic f) such that said nitrogen compound does not comprise an aromatic or cyclic group.4. The method according to claim 1 , in wherein said at least one nitrogen compound necessarily has characteristic b).5. The method according to claim 1 , in wherein the nitrogen compound is selected from the group consisting of N claim 1 ,N′-diethyl-1 claim 1 ,3-propanediamine (DEAPA) claim 1 , tetramethyl-1 claim 1 ,3-propanediamine (TMPDA) claim 1 , N-methyl-1 claim 1 ,3-propanediamine claim 1 , N claim 1 ,N′-dibutyl-1 claim 1 ,3-propanediamine claim 1 , N-(3-dimethylaminopropyl)propane-1 claim 1 ,3-diamine (DMAPAPA) claim 1 , N-(3-aminopropyl)-1 claim 1 ,3-propanediamine claim 1 , N claim 1 ,N′-1 claim 1 ,2-ethanediyl-bis-1 claim 1 ,3-propanediamine claim 1 , N-(aminopropyl)diethanolamine (APDEA) claim 1 , and mixtures thereof.6. The method of claim 1 , wherein the activity of at least one hydrotreating catalyst is controlled.7. The method of claim 1 , wherein the acid sites of the ...

SELF-ACTIVATING HYDROPROCESSING CATALYST HAVING ENHANCED ACTIVITY AND SELF-ACTIVATION CHARACTERISTICS AND ITS USE FOR TREATING RESID FEEDSTOCKS

A self-activating catalyst for treating heavy hydrocarbon feedstocks that comprises a calcined particle treated with a sulfoxide compound in the presence of hydrogen. The calcined particle comprises a co-mulled mixture made by co-mulling inorganic oxide powder, molybdenum trioxide powder, and a nickel compound and then forming the co-mulled mixture into a particle that is calcined to thereby provide the calcined particle. The calcined particle comprises from 1 to 10 weight percent molybdenum and nickel that is present in an amount such that the weight ratio of said nickel-to-molybdenum is less than 0.4. The calcined particle has a pore size distribution that contributes to the unique properties of the catalyst. The enhanced self-activating catalyst is used in the hydroprocessing of heavy residue feedstocks that have high nickel, vanadium and sulfur concentrations. 1. A method making a self-activating hydroprocessing catalyst having enhanced activity , wherein said method comprises:co-mulling an inorganic oxide powder, molybdenum trioxide powder, and a nickel compound to provide a co-mulled mixture;forming said co-mulled mixture into a particle;calcining said particle to provide a calcined particle; andtreating said calcined particle with a sulfoxide compound in the presence of molecular hydrogen to provide said self-activating hydroprocessing catalyst.2. A method as recited in claim 1 , wherein said treating step comprises:{'sup': −1', '−1, 'sub': '2', 'contacting said calcined particle with a petroleum-derived hydrocarbon feedstock, having a concentration of said sulfoxide compound such that the sulfur content of said petroleum-derived hydrocarbon feedstock contributed by said sulfoxide compound is in the range of from 0.1 to 8 wt. % of the total weight of the petroleum-derived hydrocarbon feedstock at a LHSV in the range of from 0.01 hrto 10 hrand in the presence of said molecular hydrogen in an amount such that the molar ratio of said molecular hydrogen-to-said ...

HYDROTREATING CATALYST CONTAINING METAL ORGANIC SULFIDES ON DOPED SUPPORTS

A catalyst comprising: a catalyst support; at least one Group VIB metal component; at least one Group VIII metal component; at least one mercapto-carboxylic acid; wherein the catalyst support contains at least one dopant comprising either boron, and/or silicon, and/or phosphorusin the range of about 1 to about 13 wt %, expressed as an oxide and based on the total weight of the catalyst for each dopant added; and wherein the amount of the at least one mercapto-carboxylic acid is in the amount from about 0.4 to about 3 equivalents to the sulfur amount necessary for forming sulfides of the Group VI and VIII components. 2. The catalyst according to wherein the Group VIB metal component comprises molybdenum and/or tungsten.3. The catalyst according to or wherein the Group VIII metal component comprises nickel and/or cobalt.4. The catalyst according to any one of - wherein the mercapto-carboxylic acid is thioglycolic acid claim 1 , thiolactic acid claim 1 , mercapto succinic acid claim 1 , cysteine or thio propionic acid.5. The catalyst according to further comprising an additional carboxylic acid.6. The catalyst according to any one of - claim 4 , wherein the dopant is boron in the range of about 2 wt % to about 8 wt % claim 4 , expressed as an oxide (BO) and based on the total weight of the catalyst.7. The catalyst according to any one of - claim 4 , wherein the dopant is phosphorus in the range of about 2 wt % to about 10 wt % claim 4 , expressed as an oxide (PO) and based on the total weight of the catalyst.8. The catalyst according to claims any one of 1-5 claim 4 , wherein the dopant is silicon in the range of about 1 wt % to about 9 wt % claim 4 , expressed as an oxide (SiO) and based on the total weight of the catalyst.9. The catalyst according to claim 4 , claim 4 , or wherein the catalyst support is impregnated with the Group VIB metal component claim 4 , the Group VIII metal component claim 4 , and the mercapto-carboxylic acid.10. The catalyst according to ...

PROCESS FOR SYNTHESIS OF MOLYBDENUM SULFIDE-BASED CATALYSTS

A process for preparing a molybdenum sulfide-based catalyst comprises drying a precipitated molybdenum sulfide-based catalyst precursor, for example, a wet filter cake, such that a particulate catalyst precursor, containing from 12 to 15 percent by weight water, is formed. The particulate catalyst precursor is desirably in the form of free-flowing particles. The particulate catalyst precursor is then auto-reduced. A rotary furnace that subjects the catalyst precursor to at least two zones having distinct temperatures may be conveniently used for drying, auto-reduction, or both. The staged drying and auto-reduction steps reduce the tendency of the precursor to self-heat, which is undesirable because it reduces both the activity and selectivity of the final catalyst. 1. A process for preparing a catalyst , comprisingdrying a precipitated catalyst precursor containing at least molybdenum and sulfur such that it contains from 12 to 15 weight percent water;simultaneously with or subsequently to drying, accomplishing passivation of the precipitated catalyst precursor by exposing it to air, an inert atmosphere, or a combination thereof under conditions suitable to form a passivated particulate catalyst precursor,passivation being defined to mean that the particulate catalyst precursor does not self-heat to more than 100° C. if exposed to air; and thenthermally auto-reducing the passivated particulate catalyst precursor at a temperature ranging from 350° C. to 550° C. to form a catalyst.2. The process of wherein the precipitated catalyst precursor is prepared from a reaction product of cobalt acetate claim 1 , ammonium heptamolybdate and ammonium sulfide; or of ammonium tetrathiomolybdate and cobalt acetate; or of ammonium heptamolybdate and ammonium sulfide.3. The process of wherein the drying is carried out by either pressure filtration followed by vacuum drying claim 1 , or by preparing a suspension of the precipitated catalyst precursor and then spray-drying the ...

NICKEL CONTAINING MIXED METAL-OXIDE/CARBON BULK HYDROPROCESSING CATALYSTS AND THEIR APPLICATION

The current invention relates a process for making and using a bulk catalyst precursor (i.e. no support material is added as such) comprising Ni and Mo and/or W and an organic component, wherein the molar ratio of C:(Mo+W) ranges from 1.5 to 10. The bulk catalyst precursor is prepared from a mixture of metal-precursors with an organic agent. The organic agent is partly decomposed to form a mixed metal-oxide/C phase which is in effect the bulk catalyst precursor. This bulk catalyst precursor (i) is effectively insoluble in water (ii) does not have any appreciable pore volume or surface area and (iii) does not contain a (nano)crystalline metal-oxide phase as characterized by XRD. 1. A process for hydroprocessing of a hydrocarbon feedstock comprising sulphur and nitrogen containing organic compounds comprising the step of contacting the hydrocarbon feedstock with a NiW , NiMo or NiMoW oxidic bulk catalyst obtained from a NiW , NiMo or NiMoW bulk catalyst precursor composition comprising nickel oxide , and molybdenum oxide or tungsten oxide or mixtures thereof , and an organic component prepared from an organic additive , wherein the total amount of molybdenum oxide and tungsten oxide is at least 30 wt % , the molar ratio of nickel to molybdenum plus tungsten is higher than 0.05 , the molar ratio of carbon to molybdenum plus tungsten is between 1.5 and 10; and wherein the organic additive is selected from Acetic acid , Aspartic acid , Citric acid , Formic acid , Fumaric acid , Gluconic acid , Glutamic acid , Glyoxylic acid , Ketoglutaric acid , Maleic acid , Malic acid , Oxaloacetic acid , Propionic acid , Pyruvic acid , Succinic acid , Fructose , Glucose , Lactose , Saccharose , Sorbitol , Xylitol , Serine and mixtures thereof where the bulk catalyst precursor further comprises Ni-crystals detected by transmission electron microscopy technique (TEM) , the catalyst comprising a minimum metal loading of 2.0 moles of molybdenum plus tungsten per liter reactor , wherein ...

High surface area graphene-supported metal chalcogenide assembly

Disclosed here is a method for hydrocarbon conversion, comprising contacting at least one graphene-supported assembly with at least one hydrocarbon feedstock, wherein the graphene-supported assembly comprises (i) a three-dimensional network of graphene sheets crosslinked by covalent carbon bonds and (ii) at least one metal chalcogenide compound disposed on the graphene sheets, wherein the chalcogen of the metal chalcogenide compound is selected from S, Se and Te, and wherein the metal chalcogenide compound accounts for at least 20 wt. % of the graphene-supported assembly.

Visible light catalyst, preparation and application thereof

A visible light catalyst, its preparation method, a visible light catalyst activated persulfate system and its use. The visible light catalyst includes a carbon material, a transition metal compound and a coating material. The carbon material is conductive carbon material, and the transition metal compound is selected from one or more of transition metal oxides, transition metal sulfides, and acid or salt compounds containing a transition metal. The visible light catalyst has high visible light photocatalytic activity and performance of degrading organic pollutants and activating persulfate which can result in synergistically degrading degradation-resistant organic pollutants.

MOLYBDENUM SULFIDE NANOSHEETS DECORATED WITH IRON PHOSPHIDE FOR HYDROGEN GAS EVOLUTION

An electrocatalyst comprising molybdenum disulfide nanosheets with dispersed iron phosphide nanoparticles is described. The molybdenum disulfide nanosheets may have an average length in a range of 300 nm-1 μm and the iron phosphide nanoparticles may have an average diameter in a range of 5-20 nm. The electrocatalyst may have an electroactive surface area in a range of 10-50 mF·cmwhen deposited on a working electrode for use in a hydrogen evolution reaction. 1. An electrocatalyst , comprising:molybdenum disulfide nanosheets having an average length in a range of 300 nm-1 pm, and iron phosphide nanoparticles having an average diameter in a range of 5-20 nm.2. The electrocatalyst of claim 1 , wherein the electrocatalyst consists essentially of Mo claim 1 , S claim 1 , Fe claim 1 , and P.3. The electrocatalyst of claim 1 , wherein the molybdenum disulfide nanosheets are crystalline with interplanar spacing in a range of 0.26-0.28 nm or 0.62-0.64 nm.4. The electrocatalyst of claim 1 , wherein the molybdenum disulfide nanosheets have XRD peaks at 2(θ) Bragg angles of 33.2±1° and 59.1±1°.5. The electrocatalyst of claim 1 , wherein the iron phosphide nanoparticles are crystalline with interplanar spacing in a range of 0.23-0.25 nm.6. The electrocatalyst of claim 1 , wherein the iron phosphide nanoparticles have XRD peaks at 2(θ) Bragg angles of 37.2±1° claim 1 , 48.3±1° claim 1 , and 56.1±1°.7. The electrocatalyst of claim 1 , wherein the iron phosphide nanoparticles are distributed on the molybdenum disulfide nanosheets with an average nearest neighbor distance of the nanoparticles between 12-20 nm.8. The electrocatalyst of claim 1 , wherein the molybdenum disulfide nanosheets have an average thickness of less than 5 nm.9. The electrocatalyst of claim 1 , which has an electroactive surface area in a range of 10-50 mF·cm.10. The electrocatalyst of claim 1 , which has a BET surface area in a range of 10-20 m/g.11. The electrocatalyst of claim 1 , wherein the iron phosphide ...

Catalyst Compositions Including Metal Chalcogenides, Processes for Forming the Catalyst Compositions, and Uses Thereof

Aspects of the present disclosure generally relate to catalyst compositions including metal chalcogenides, processes for producing such catalyst compositions, processes for enhancing catalytic active sites in such catalyst compositions, and uses of such catalyst compositions in, e.g., processes for producing conversion products. In an aspect, a process for forming a catalyst composition is provided. The process includes introducing an electrolyte material and an amphiphile material to a metal chalcogenide to form the catalyst composition. In another aspect, a catalyst composition is provided. The catalyst composition includes a metal chalcogenide, an electrolyte material, and an amphiphile material. Devices for hydrogen evolution reaction are also provided. 1. A process for forming a catalyst composition , comprising introducing an electrolyte material and an amphiphile material to a metal chalcogenide to form the catalyst composition.2. The process of claim 1 , further comprising introducing a voltage to the to the catalyst composition.3. The process of claim 1 , wherein a first amount of hydrogen atoms absorbed on the metal chalcogenide before introducing the electrolyte material and the amphiphile material is less than a second amount of hydrogen atoms absorbed on the metal chalcogenide after introducing the electrolyte material and the amphiphile material.4. The process of claim 1 , wherein the metal chalcogenide comprises a density of chalcogen atom vacancies from about 6% to about 30% claim 1 , as determined by x-ray photoelectron spectroscopy.5. The process of claim 1 , wherein:the electrolyte material comprises an acid; andthe amphiphile material comprises an anionic compound.6. The process of claim 5 , wherein the acid has a pKa of about 3 or less as determined by potentiometric titration.8. The process of claim 7 , wherein:M is selected from the group consisting of Mo, W, Nb, Ni, Fe, V, Cr, Mn, and combinations thereof; andE is selected from the group ...

METAL SULPHIDE-BASED COMPOSITE PHOTOCATALYST FOR PRODUCING HYDROGEN

The invention concerns a composition comprising a mixture of zinc sulphide (ZnS) and molybdenum sulphide (MoS), in which the Mo/Zn molar ratio is in the range 0.01 to 1.9. The invention also pertains to a process for its preparation as well as to its application in photocatalysis and more particularly to its application in photocatalysis for the production of dihydrogen from water (HO) and/or hydrogen sulphide (HS) and/or any other source of protons in the presence of a source emitting in the ultraviolet and/or visible spectrum. 1. A composition comprising a mixture of zinc sulphide and molybdenum sulphide , in which the Mo/Zn molar ratio is in the range 0.01 to 1.9.2. The composition according to claim 1 , in which the Mo/Zn molar ratio is in the range 0.5 to 1.5.3. The composition according to claim 1 , in which the mixture of zinc sulphide and molybdenum sulphide is in the form of nanoparticles less than 1 μm in size.4. The composition according to claim 1 , further comprising at least one metal from group VIII and/or group D3 in its metallic or sulphide form.5. The composition according to claim 4 , in which the metal from group VIII and/or group D3 is selected from platinum claim 4 , palladium claim 4 , gold claim 4 , nickel claim 4 , cobalt claim 4 , ruthenium or rhodium.6. The composition according to claim 4 , in which the quantity of metal from group VIII and/or group D3 is in the range 0.01% to 5% by weight of metal on the composition.7. A process for the preparation of the composition according to claim 1 , comprising the following steps:a) precipitating a molybdenum precursor in the presence of a sulphur-containing compound and zinc sulphide in a solvent comprising a polyol at a temperature in the range 150° C. to 250° C., in order to obtain a solution containing a composition comprising a mixture of a precipitate of zinc sulphide and a precipitate of molybdenum sulphide;b) separating the composition obtained in step a) from the solution, then optionally ...

NANOCATALYST COMPOSITION, METHOD FOR MAKING NANOCATALYST COMPOSITION AND HYDROCONVERSION PROCESS USING SAME

A method for making a nanocatalyst includes the steps of forming a mixture of a catalyst precursor, and a crude oil media, wherein the catalyst precursor is insoluble in the oil media, then heating the mixture in the presence of a stability agent, thereby liberating the catalyst particles from the precursor while the stabilizing agent prevents growth of the catalyst particle so that nanocatalyst particles form and are maintained in the oil media. The resulting catalyst composition as well as a hydroconversion process using the catalyst are also disclosed. 1. A method for making a nanocatalyst , comprising the steps of:forming a mixture of an oil-insoluble catalyst precursor salt, and a crude oil media; andheating the mixture in the presence of a stabilizing agent whereby catalyst particles are liberated from the precursor salt and whereby the stabilizing agent prevents growth of the catalyst particle so as to form nanocatalyst particles in the oil media.2. The process of claim 1 , wherein the heating step comprises heating the mixture from ambient conditions to a temperature of between about 100° C. and about 350° C.3. The process of claim 1 , wherein the heating step comprises heating the mixture at a rate of between 0.5 and 2° C. per minute.4. The process of claim 1 , wherein the heating step is carried out at a pressure of between 300 and 600 psig.5. The process of claim 1 , wherein the heating step is carried out for a period of time of between 6 and 24 hours.6. The process of claim 1 , wherein the heating step forms a dispersion of the nanocatalyst particles in the crude oil media claim 1 , and further comprising the step of allowing the dispersion to cool to ambient conditions.7. The process of claim 1 , wherein the formed nanocatalyst particles are selected from the group consisting of metals of groups VIB claim 1 , VIIIB claim 1 , IB claim 1 , IIB and IIA of the periodic table of elements claim 1 , and combinations thereof.8. The process of claim 7 , wherein ...

PROCESS FOR THE PREPARATION OF MOLYBDENUM DISULFIDE NANOPARTICLES SUPPORTED ON TITANIA

The invention relates to a process for the preparation of nanoparticles of MoSsupported on TiOwherein the preparation is performed by reductive coprecipitation using aqueous solutions containing Ti and Mo precursor salts, and wherein MoSmay be non-promoted or Co-promoted. Further, the invention relates to the use of said nanoparticles as hydrodesulfurization catalysts. 1. A process for the preparation of nanoparticles of MoSsupported on TiOwherein the preparation is performed by reductive coprecipitation using aqueous solutions containing Ti and Mo precursor salts , and wherein MoSmay be non-promoted or Co-promoted.2. The process of claim 1 , wherein the Ti and Mo precursor salts are TiCland (NH)MoS claim 1 , respectively.3. The process of claim 2 , wherein the preparation is in a single step directly from a solution of the respective metal salts TiCland (NH)MoS.4. The process of claim 3 , wherein the preparation is performed under acidic conditions and a chelating agent selected from EDTA or citric acid is added during preparation.5. The process of claim 4 , wherein the preparation is performed at a pH in the range of 3 to 4.6. The process of claim 1 , wherein the preparation is in two steps from a dispersion of TiOsupport precursor in a solution of (NH)MoS claim 1 , wherein the TiOsupport precursor is prepared prior to introduction of the (NH)MoSsalt.7. The process of claim 6 , wherein the TiOsupport precursor is prepared by thermolysis or hydrolysis.8. The process claim 1 , comprising: using MoSnanoparticles supported on titania as produced by the process of as a hydrodesulfurization catalyst by passing a reaction feed over the hydrodesulfurization catalyst.9. (canceled)10. (canceled) The present invention relates to a process for the preparation of titania (TiO)-supported molybdenum disulfide (MoS) nanoparticles and to the use of said nanoparticles obtained by said process as hydrodesulphurization catalysts.The synthesis of industrial heterogeneous catalysts, ...

NOVEL CATALYST FOR THE WATER GAS SHIFT REACTION

A method of increasing hydrogen content of a synthesis gas via a water-gas shift reaction includes providing a catalyst composition comprising cesium, molybdenum and sulfur on an inert support. A reactant gas mixture including synthesis gas (carbon monoxide and hydrogen) and steam, when flowed into contact with the catalyst composition, may form a hydrogen enriched shifted gas mixture. 1. A method of increasing hydrogen content of a synthesis gas via a water-gas shift reaction comprising: during catalyst formation sulfidation of molybdenum oxide occurs prior to impregnation of the cesium, and', 'the molybdenum sulfide of the stable catalyst composition does not loose sulfur during a water-gas shift reaction;, 'providing a stable catalyst composition comprising cesium and molybdenum sulfide on an inert support, whereinflowing a reactant gas mixture into contact with the catalyst composition, wherein the reactant gas mixture comprises synthesis gas (carbon monoxide and hydrogen) and steam; andforming a hydrogen enriched shifted gas mixture.2. (canceled)3. The method of claim 1 , wherein the inert support is activated carbon.4. The method of claim 1 , wherein the water gas shift reaction is carried out at a temperature of about 350° C. to 450° C.5. The method of claim 1 , further comprising activating the catalyst composition before flowing the reactant gas mixture into contact with the catalyst composition claim 1 , wherein activating the catalyst composition comprises heating the catalyst composition to about 350° C. under a stream of hydrogen and nitrogen mixture.6. The method of claim 1 , wherein the water gas shift reaction is carried out at a pressure of at least 2.5 atm.7. The method of claim 1 , wherein the reactant gas mixture is flowed at a gas hourly space velocity of from about 2400 L/kg catalyst/hr to 5000 L/kg catalyst/hr.8. The method of claim 1 , wherein the water gas shift reaction is a sour feed reaction.9. The method of claim 1 , wherein the water ...

Photochemical Processes and Compositions for Methane Reforming Using Transition Metal Chalcogenide Photocatalysts

The present invention provides a transition metal chalcogenide photocatalyst, a reactor using the transition metal chalcogenide photocatalyst, and methods of making and using a transition metal chalcogenide photocatalyst for reforming CH 4 with CO 2 .

COBALT MOLYBDENUM DISULFIDE SYNTHESIZED USING ALKYL-CONTAINING THIOMOLYBDATE PRECURSORS

Embodiments of the invention are directed to CoMoS2 catlaysts, methods of making and using, as well as electrodes and systems incorporating such. Synthesis of CoMoS2 catalysts using ATM treated with different amines and ammonium bromide salts including 1-dodecylamine, diethylenetriamine, tetradecyltrimethylammonium bromide and cetyltrimethylammonium bromide, to form different alky containing ATM precursors. These materials are amorphous with porous surfaces that show reasonably big surfaces area due to the number of exposed edge sites, and increased catalytic activity as electrocatalysts for hydrogen generation. 1. A hydrogen evolution catalyst comprising:{'sub': '2', 'sup': '2', 'cobalt-promoted molybdenum disulfide (CoMoS) having a surface area greater than about 35 square meters per gram (m/g).'}2. The hydrogen evolution catalyst of claim 1 , wherein the CoMoShas a surface area of from about 35 m/g to about 100 m/g claim 1 , preferably from about 38 m/g to about 90 m/g claim 1 , more preferably from about 41 m/g to about 80 m/g claim 1 , and most preferably from about 43 m/g to about 69 m/g.3. The hydrogen evolution catalyst of claim 1 , wherein the CoMoSis synthesized from an alkylated thiosalt precursor.4. The hydrogen evolution catalyst of claim 3 , wherein the alkylated thiosalt precursor is ammonium thiomolybdate (ATM) alkylated by a reaction with one of the group consisting of C4 to C16 amines claim 3 , C4 to C16 ammonium salts claim 3 , and combinations thereof.5. The hydrogen evolution catalyst of claim 4 , wherein the amine is diethylenetriamine (DETA) or 1-dodecylamine (DDA).6. The hydrogen evolution catalyst of claim 4 , wherein the ammonium salt is tetradecyltrimethylammonium (TDTA) bromide or cetyltrimethylammonium (CTA) bromide.7. An electrolytic cell comprising: a metallic base; and', {'sub': 2', '2, 'sup': '2', 'cobalt-promoted molybdenum disulfide (CoMoS), wherein the CoMoShas a surface area greater than about 35 square meters per gram (m/g).'}], ...

OBTENTION OF LOW LOADING CATALYSTS FOR DEEP HYDROCARBONS HYDRODESULFURIZATION BASED OF CoMoS, WITH NiMoS HYDRODENITROGENANT ADDITIVE, SUPPORTED ON THREE-DIMENSIONAL NANOSTRUCTURED MESOPOROUS MATERIALS

The present invention shows a synthesis method for a highly dispersed supported catalyst over a KIT-6 type nanostructured mesoporous oxide with elements from Groups IIIA or IVA, or IVB. The method includes the synthesis of the support, the incorporation of CoMo and NiMo active phases through impregnation to pore volume, assisted by ultrasound, calcination at controlled conditions in order to obtain a phase of hydrated trioxide molybdenum or molybdic acid, which facilitates the subsequent sulfihydration and the mechanical mixing of a CoMoS/support with a hydrodenitrogenant NiMoS/support additive. The obtained catalysts exhibit a catalytic activity mainly in reactions of hydrotreatment, hydrodesulfurization, and hydrodenitrogenation. 16-. (canceled)7. A method for producing a catalyst for deep hydro-desulfurization of hydrocarbons , the method comprising the steps of:mixing:{'sub': 2', '2', '3', '2', '2, 'a compound including cobalt, molybdenum, sulphur (CoMoS) supported on a nanostructured mesoporous support based on SiOand modified with metal oxides selected from the group consisting of AlO, ZrO, TiO, and mixtures thereof; and'}{'sub': 2', '2', '3', '2', '2, 'a hydrodenitrogenant additive including nickel, molybdenum and sulphur (NiMoS) supported on a nanostructured mesoporous support based on SiOand modified with metal oxides selected from the group consisting of AlO, ZrO, TiO, and mixtures thereof.'}8. A method for producing a catalyst for deep hydro-desulfurization of hydrocarbons , the method comprising the steps of:mixing:{'sub': 2', '2', '3', '2', '2, 'a compound including cobalt, molybdenum, sulphur (CoMoS) supported on a nanostructured mesoporous support based on SiOand modified with metal oxides selected from the group consisting of AlO, ZrO, TiO, and mixtures thereof; and'}{'sub': 2', '2', '3', '2', '2, 'a hydrodenitrogenant additive including nickel, molybdenum and sulphur NiMoS supported on a nanostructured mesoporous support based on SiOand modified ...

Presulfurized Catalyst Composition

A system and method of presulfurizing a catalyst. The presulfurizing of the catalyst includes contacting the catalyst with elemental sulfur, an olefin, and a triglyceride to form a mixture, and heating the mixture to give a presulfurized catalyst. 120-. (canceled)21. A method of hydroprocessing using a presulfided catalyst , comprising: contacting a sulfidable catalyst with sulfur, an olefin, and a triglyceride at a specified weight ratio of the olefin to the total weight of olefin and triglyceride of between 0.4 to 0.6 to form a mixture, wherein the weight ratio of the sulfur to the total weight of the catalyst is between 0.02 to 0.15;', 'heating the mixture to form a presulfurized catalyst; and', 'adding hydrogen to the presulfurized catalyst ex-situ of a hydroprocessing reactor to form the presulfided catalyst;, 'forming the presulfided catalyst byperforming an initial startup of the hydroprocessing reactor after loading of the presulfided catalyst to form a hydroprocessed hydrocarbon product;feeding hydrocarbon feed comprising cracked feedstock comprising coker naptha, coker diesel, or light cycle oil (LCO), or any combinations thereof, to the hydroprocessing reactor within first three days of the initial startup; andcatalyzing, via the presulfided catalyst, hydroprocessing of the hydrocarbon feed in the hydroprocessing reactor to give the hydroprocessed hydrocarbon product.22. The method of claim 21 , wherein the presulfurized catalyst comprises a carbonaceous barrier formed via the heating of the mixture of the sulfidable catalyst claim 21 , the sulfur claim 21 , the olefin claim 21 , and the triglyceride claim 21 , and wherein the hydroprocessing comprises hydrotreating claim 21 , hydrocracking claim 21 , or pyrolysis gasoline (pygas) treating claim 21 , or any combination thereof.23. The method of claim 21 , wherein the sulfidable catalyst comprises a metal oxide catalyst having one or more oxides of metals from Group VIE and Group VIII of the Periodic Table ...

Hydroconversion Multi-Metallic Catalyst and Method for Making Thereof

In a process for forming a bulk hydroprocessing catalyst by sulfiding a catalyst precursor made in a co-precipitation reaction, up to 60% of the metal precursor feeds do not react to form catalyst precursor and end up in the supernatant as metal residuals. In the present disclosure, the metals can be recovered in a chemical precipitation step, wherein the supernatant is mixed with at least one of an acid, a sulfide-containing compound, a base, and combinations thereof to precipitate at least 50% of metal ions in at least one of the metal residuals, wherein the precipitation is carried out at a pre-select pH. The precipitate is isolated and recovered, yielding an effluent stream. The precipitate and/or the effluent stream can be further treated to form at least a metal precursor feed which can be used in the co-precipitation reaction. The process generates an effluent to waste treatment containing less than 50 ppm metals.

Template-Assisted Synthesis of 2D Nanosheets Using Nanoparticle Templates

A template-assisted method for the synthesis of 2D nanosheets comprises growing a 2D material on the surface of a nanoparticle substrate that acts as a template for nanosheet growth. The 2D nanosheets may then be released from the template surface, e.g. via chemical intercalation and exfoliation, purified, and the templates may be reused.

Nanowire-based Hydrodesulfurization Catalysts for Hydrocarbon Fuels

The present development is a metal particle coated nanowire catalyst for use in the hydrodesulfurization of fuels and a process for the production of the catalyst. The catalyst comprises titanium(IV) oxide nanowires wherein the nanowires are produced by exposure of a TiO 2 —KOH paste to microwave radiation. Metal particles selected from the group consisting of molybdenum, nickel, cobalt, tungsten, or a combination thereof, are impregnated on the metal oxide nanowire surface. The metal impregnated nanowires are sulfided to produce catalytically-active metal particles on the surface of the nanowires The catalysts of the present invention are intended for use in the removal of thiophenic sulfur from liquid fuels through a hydrodesulfurization (HDS) process in a fixed bed reactor. The presence of nanowires improves the HDS activity and reduces the sintering effect, therefore, the sulfur removal efficiency increases.

HIGHLY ACTIVE QUATERNARY METALLIC MATERIALS USING SHORT-CHAIN ALKYL QUATERNARY AMMONIUM COMPOUNDS

A highly active quaternary mixed transition metal oxide material has been developed. The material may be sulfided to generate metal sulfides which are used as a catalyst in a conversion process such as hydroprocessing. The hydroprocessing may include hydrodenitrification, hydrodesulfurization, hydrodemetallation, hydrodesilication, hydrodearomatization, hydroisomerization, hydrotreating, hydrofining, and hydrocracking. 2. The mixed transition metal oxide material of wherein the mixed transition metal oxide material is present in a mixture with at least one binder and wherein the mixture comprises up to 80 wt % binder.3. The mixed transition metal oxide material of wherein the binder is selected from silicas claim 2 , aluminas claim 2 , silica-aluminas claim 2 , titanias claim 2 , zirconias claim 2 , natural clays claim 2 , synthetic clays claim 2 , and mixtures thereof.4. The mixed transition metal oxide material of wherein Mis Si claim 1 , Zr claim 1 , Mn claim 1 , Cu claim 1 , Zn claim 1 , or any mixture thereof.5. The mixed transition metal oxide material of wherein Mis Fe claim 1 , Co claim 1 , Ni claim 1 , or any mixture thereof.6. The mixed transition metal oxide material of wherein Mis Cr claim 1 , Mo claim 1 , or W.7. The mixed transition metal oxide material of wherein Mis Cr claim 1 , Mo claim 1 , or W and is different from M.8. The mixed transition metal oxide material of wherein the novel mixed transition metal oxide material is sulfided.10. The method of wherein the recovering is by decantation claim 9 , filtration or centrifugation.11. The method of further comprising adding a binder to the reaction mixture or to the recovered mixed transition metal oxide material.12. The method of wherein the binder is selected from aluminas claim 11 , silicas claim 11 , alumina-silicas claim 11 , titanias claim 11 , zirconias claim 11 , natural clays claim 11 , synthetic clays claim 11 , and mixtures thereof.13. The method of further comprising sulfiding at least a ...

CRYSTALLINE OXY-HYDROXIDE TRANSITION METAL MOLYBDOTUNGSTATE

A unique crystalline transition metal molybdotungstate material has been developed. The material may be sulfided to generate metal sulfides which are used as a catalyst in a conversion process such as hydroprocessing. The hydroprocessing may include hydrodenitrification, hydrodesulfurization, hydrodemetallation, hydrodesilication, hydrodearomatization, hydroisomerization, hydrotreating, hydrofining, and hydrocracking. 2. The crystalline transition metal molybdotungstate material of wherein the material is present in a mixture with at least one binder and wherein the mixture comprises up to 25 wt-% binder.3. The crystalline transition metal molybdotungstate material of wherein the binder is selected from the group consisting of silicas claim 2 , aluminas claim 2 , and silica-aluminas.4. The crystalline transition metal molybdotungstate material of wherein M is nickel or cobalt.5. The crystalline transition metal molybdotungstate material of wherein M is nickel.6. The crystalline transition metal molybdotungstate material of wherein the crystalline transition metal molybdotungstate material is sulfided.8. The method of wherein the reacting is conducted for a period of time from about 30 minutes to about 14 days.9. The method of wherein the recovering is by filtration claim 7 , centrifugation claim 7 , or decantation.10. The method of further comprising adding a binder to the recovered crystalline transition metal molybdotungstate material.11. The method of wherein the binder is selected from the group consisting of aluminas claim 10 , silicas claim 10 , and alumina-silicas.12. The method of further comprising sulfiding at least a portion of the recovered crystalline transition metal molybdotungstate material to generate metal sulfides.14. The process of wherein the conversion process is hydroprocessing.15. The process of wherein the conversion process is selected from hydrodenitrification claim 13 , hydrodesulfurization claim 13 , hydrodemetallation claim 13 , ...

Nanowire-based Hydrodesulfurization Catalysts for Hydrocarbon Fuels

The present development is a metal particle coated nanowire catalyst for use in the hydrodesulfurization of fuels and a process for the production of the catalyst. The catalyst comprises titanium(IV) oxide nanowires wherein the nanowires are produced by exposure of a TiO2—KOH paste to microwave radiation. Metal particles selected from the group consisting of molybdenum, nickel, cobalt, tungsten, or a combination thereof, are impregnated on the metal oxide nanowire surface. The metal impregnated nanowires are sulfided to produce catalytically-active metal particles on the surface of the nanowires The catalysts of the present invention are intended for use in the removal of thiophenic sulfur from liquid fuels through a hydrodesulfurization (HDS) process in a fixed bed reactor. The presence of nanowires improves the HDS activity and reduces the sintering effect, therefore, the sulfur removal efficiency increases.

CATALYST FOR CONVERTING SYNGAS TO MIXED ALCOHOLS

Higher mixed alcohols are produced from syngas contacting a catalyst in a reactor. The catalyst has a first component of molybdenum or tungsten, a second component of vanadium, a third component of iron, cobalt, nickel or palladium and optionally a fourth component of a promoter. The first component forms alcohols, while the vanadium and the third component stimulates carbon chain growth to produce higher alcohols. 1. A modified Fischer-Tropsch catalyst for the synthesis of mixed alcohols from syngas , comprising:a) a first component with at least one element selected from the group consisting of molybdenumn or tungsten in free or combined form;b) a second component comprising vanadium in free or combined form;c) a third component with at least one element selected from the group consisting of iron, cobalt and nickel in free or combined form;d) a fourth promoter component comprising an alkali or alkaline earth element in free or combined form.2. The modified Fischer-Tropsch catalyst according to claim 1 , where the first claim 1 , second claim 1 , third and fourth components are supported on a carrier claim 1 , which carrier is inert in the synthesis of mixed alcohols.3. The modified Fischer-Tropsch catalyst of wherein the catalyst is a bulk catalyst.4. The modified Fischer-Tropsch catalyst of wherein the first component comprises crystalline molybdenum sulfide with a concentration in the catalyst is 33-43% claim 1 , by weight claim 1 , and the concentration of vanadium is 2-14% claim 1 , by weight claim 1 , among the molybdenum sulfide claim 1 , the second component and the third component.5. The modified Fischer-Tropsch catalyst of wherein the fourth promoter component comprises zirconium in free or combined form.6. The modified Fischer-Tropsch catalyst of wherein the second component comprises vanadium sulfide.7. The modified Fischer-Tropsch catalyst of wherein:a) the first component comprises crystalline molybdenum sulfide with a concentration in the catalyst is ...

A SUPPORTED CATALYST FOR SLURRY PHASE HYDROCRACKING OF REFINERY RESIDUE AND A PROCESS FOR ITS PREPARATION

The present disclosure relates to a catalyst for slurry phase hydrocracking of refinery residue and a process for its preparation. The present disclosure provides a very simple method for exfoliation of metal sulphide, and a process of that provides effective slurry phase hydrocracking of refinery residue with a high yield. 1. A process for preparing a supported catalyst for slurry phase hydrocracking , said process comprising the following steps:i. charging a vessel with a predetermined amount of metal sulphide and at least one fluid medium to obtain a first mixture;ii. sonicating/exfoliating said first mixture to obtain an exfoliated product;iii. mixing said exfoliated product with a predetermined amount of at least one support material to obtain a slurry;iv. heating said slurry for a time period in the range of 12 to 60 hours at a temperature in the range of 10 to 80° C. to obtain a heated slurry; andv. drying and calcining said heated slurry under inert atmosphere to obtain the supported catalyst.2. The process as claimed in claim 1 , wherein said metal sulphide comprises a metal selected from the group consisting of titanium claim 1 , molybdenum claim 1 , vanadium claim 1 , chromium claim 1 , manganese claim 1 , iron claim 1 , cobalt claim 1 , nickel claim 1 , zirconium claim 1 , tungsten claim 1 , ruthenium claim 1 , rhodium claim 1 , tin claim 1 , tantalum claim 1 , rhenium claim 1 , and iridium.3. The process as claimed in claim 1 , wherein said at least one support material is selected from the group consisting of activated carbon claim 1 , multiwall carbon nanotubes claim 1 , γ-alumina claim 1 , and porous silica.4. The process as claimed in claim 1 , wherein the weight ratio of the amount of said metal sulphide and said at least one support material is in the range of 1:10 to 1:1000.5. The process as claimed in claim 1 , wherein said calcination is carried out at a temperature in the range of 300 to 550° C.6. A process for preparing a supported catalyst ...

HYDROTREATING CATALYST AND PROCESS FOR PREPARING THE SAME

The current invention provides a hydrotreating catalyst comprising of metals of at least one each from Group VIB, preferably molybdenum and Group VIII, preferably nickel, of the periodic table supported on alumina modified with small amounts of modifying elements well dispersed on the surface so as to retain the physico-chemical characteristics of the support and result in high performance for hydrodesulphurization catalyst, and a commercially viable process for producing such a catalyst. The present invention also discloses a commercially viable method for modifying alumina in the powder form without affecting the porous structure of the support obtained. 1. A hydro treatment catalyst comprising an inorganic oxide material based carrier , a group VI B metal and a group VIII metal adsorbed to the carrier , wherein the inorganic oxide material based carrier comprises alumina matrix and a modifying element grafted to the alumina matrix , and the modifying element being present in an amount in the range of 0.01 to 2% of a total weight of the inorganic oxide material based carrier.2. The hydro treatment catalyst as claimed in claim 1 , wherein the modifying element is selected from a group comprising of boron claim 1 , aluminium claim 1 , silicon claim 1 , titanium claim 1 , cerium claim 1 , zirconium and mixtures thereof.3. The hydro treatment catalyst as claimed in claim 1 , wherein the modifying element being present in an amount in the range of 0.01 to 2% claim 1 , the percentage being on the basis of a total weight of the inorganic oxide material based carrier.4. The hydro treatment catalyst as claimed in claim 1 , wherein the group VIII metal is present in an amount in the range of 1 to 5%.5. The hydro treatment catalyst as claimed in claim 1 , wherein the group VI B metal is present in an amount in the range of 10 to 25%.6. The hydro treatment catalyst as claimed in claim 1 , wherein the group VI B metal is an oxide of molybdenum.7. The hydro treatment catalyst ...

AMMONIA-FREE SYNTHESIS FOR AL OR SI BASED MULTIMETALLIC MATERIALS

A highly active quaternary mixed transition metal oxide material has been developed. The material may be sulfided to generate metal sulfides which are used as a catalyst in a conversion process such as hydroprocessing. The hydroprocessing may include hydrodenitrification, hydrodesulfurization, hydrodemetallation, hydrodesilication, hydrodearomatization, hydroisomerization, hydrotreating, hydrofining, and hydrocracking. 2. The mixed transition metal oxide material of wherein the mixed transition metal oxide material is present in a mixture with at least one binder and wherein the mixture comprises up to 80 wt % binder.3. The mixed transition metal oxide material of wherein the binder is selected from silicas claim 2 , aluminas claim 2 , silica-aluminas claim 2 , titanias claim 2 , zirconias claim 2 , natural clays claim 2 , synthetic clays claim 2 , and mixtures thereof.4. The mixed transition metal oxide material of wherein Mis Zr claim 1 , Mn claim 1 , Cu claim 1 , Zn claim 1 , or any mixture thereof.5. The mixed transition metal oxide material of wherein Mis Fe claim 1 , Co claim 1 , Ni claim 1 , or any mixture thereof.6. The mixed transition metal oxide material of wherein Mis Cr claim 1 , Mo claim 1 , or W.7. The mixed transition metal oxide material of wherein Mis Cr claim 1 , Mo claim 1 , or W and is different from M.8. The mixed transition metal oxide material of wherein the novel mixed transition metal oxide material is sulfided.10. The method of further comprising adding a binder to the reaction mixture or to the recovered mixed transition metal oxide material.11. The method of wherein the binder is selected from aluminas claim 10 , silicas claim 10 , alumina-silicas claim 10 , titanias claim 10 , zirconias claim 10 , natural clays claim 10 , synthetic clays claim 10 , and mixtures thereof.12. The method of further comprising sulfiding at least a portion of the recovered mixed transition metal oxide material.13. The method of wherein the reacting is ...

SELF-ACTIVATING HYDROPROCESSING CATALYST HAVING ENHANCED ACTIVITY AND SELF-ACTIVATION CHARACTERISTICS AND ITS USEFOR TREATING RESID FEEDSTOCKS

A self-activating catalyst for treating heavy hydrocarbon feedstocks that comprises a calcined particle treated with a sulfoxide compound in the presence of hydrogen. The calcined particle comprises a co-mulled mixture made by co-mulling inorganic oxide powder, molybdenum trioxide powder, and a nickel compound and then forming the co-mulled mixture into a particle that is calcined to thereby provide the calcined particle. The calcined particle comprises from 1 to 10 weight percent molybdenum and nickel that is present in an amount such that the weight ratio of said nickel-to-molybdenum is less than 0.4. The calcined particle has a pore size distribution that contributes to the unique properties of the catalyst. The enhanced self-activating catalyst is used in the hydroprocessing of heavy residue feedstocks that have high nickel, vanadium and sulfur concentrations. 1. A self-activating hydroprocessing catalyst for treating heavy hydrocarbon feedstocks , wherein said catalyst comprises:a calcined particle treated with a sulfoxide compound in the presence of hydrogen, wherein said calcined particle comprises a co-mulled mixture made by co-mulling inorganic oxide powder, molybdenum trioxide powder, and a nickel compound that is formed into a particle of said co-mulled mixture that is thereafter calcined;wherein said calcined particle comprises molybdenum in an amount from 1 to 10 weight percent, nickel in an amount such that the weight ratio of nickel-to-molybdenum is less than 0.4; andwherein said weight percents are for the metal and on the basis of the total weight of the calcined particle.2. A self-activating hydroprocessing catalyst as recited in claim 1 , wherein the treatment of said calcined particle is conducted by contacting said calcined particle with a petroleum-derived hydrocarbon feedstock claim 1 , having a concentration of said sulfoxide compound such that the sulfur content of said petroleum-derived hydrocarbon feedstock contributed by said sulfoxide ...

OXIDATIVE DESULFURIZATION OF LIQUID FUELS USING METAL SULFIDE QUANTUM DOTS/GRAPHEN OXID HYBRID NANOCATALYST

A method for oxidative desulfurization of liquid hydrocarbon fuels is disclosed. The method includes contacting a liquid fuel with a quantum dot hybrid catalyst including metal sulfide quantum dots intercalated over graphene oxide layers in a reactor vessel, heating the reactor vessel to a temperature between 25° C. and 200° C., and reducing sulfur content of the liquid fuel with a sulfur reduction amount of more than 95% wt. Reducing the sulfur content of the liquid fuel with the sulfur reduction amount of more than 95% wt. includes producing sulfone and sulfoxide compounds by oxidizing the liquid fuel with ozone gas in the presence of the quantum dot hybrid catalyst at the temperature between 25° C. and 200° C., and separating the sulfone and sulfoxide compounds from the liquid fuel by extracting the sulfone and sulfoxide with an extraction solvent. 1—A method for oxidative desulfurization of liquid hydrocarbon fuels , comprising:contacting a liquid fuel with a quantum dot hybrid catalyst in a reactor vessel, the quantum dot hybrid catalyst comprising metal sulfide quantum dots intercalated over graphene oxide layers;heating the reactor vessel to a temperature between 25° C. and 200° C.; and producing sulfone and sulfoxide compounds by oxidizing the liquid fuel with ozone gas in the presence of the quantum dot hybrid catalyst at the temperature between 25° C. and 200° C.; and', 'separating the sulfone and sulfoxide compounds from the liquid fuel by extracting the sulfone and sulfoxide with an extraction solvent., 'reducing sulfur content of the liquid fuel with a sulfur reduction amount of more than 95% wt., comprising2—The method of claim 1 , wherein contacting the liquid fuel with the quantum dot hybrid catalyst in the reactor vessel comprises adding the quantum dot hybrid catalyst to the reactor vessel containing the liquid fuel with a weight ratio of the quantum dot hybrid catalyst to the liquid fuel in a range between 1% wt. and 5% wt.3—The method of claim 2 ...

Molybdenum disulfide powder and method for manufacturing the same, method for degrading an organic material and method for sterilizing

A method for manufacturing a molybdenum disulfide powder includes conducting a precursor solution preparation step and a hydrothermal synthesis step. The precursor solution preparation step includes providing sodium molybdenum oxide dehydrate and thiourea, and conducting a mixing step. In the mixing step, an acid solution is mixed with the sodium molybdenum oxide dehydrate and the thiourea by titrating so as to form a precursor solution. In the hydrothermal synthesis step, the precursor solution is put into a hydrothermal container for reacting at a temperature ranging from 100° C. to 350° C. for 8 hours to 40 hours, thus the molybdenum disulfide powder is formed.

PHOTOCATALYTIC REDUCTION OF CARBON DIOXIDE TO METHANOL OR CARBON MONOXIDE USING CUPROUS OXIDE

Provided herein are methods of COreduction to methanol or CO using a CuO catalyst. 1. A method of converting COto methanol comprising{'sub': 2', '2, 'irradiating CO, water, and CuO having a (i i 0) facet to form methanol, wherein i is 1 to 12.'}2. The method of claim 1 , wherein the irradiating comprises exposure to ultraviolet to visible light.3. The method of claim 1 , wherein the irradiating comprises exposure to light having one or more wavelengths from 200 to 650 nm.4. The method of claim 1 , wherein the water is present as a liquid.5. The method of claim 1 , wherein the water is present as water vapor.6. The method of claim 1 , wherein the (i i 0) facet is a (110) facet.7. The method of claim 6 , wherein the CuO having a (110) facet is octahedral claim 6 , truncated cubic claim 6 , or a mixture thereof.8. The method of claim 7 , wherein the irradiating comprises exposure to ultraviolet to visible light.9. The method of claim 8 , wherein the irradiating comprises exposure to light having one or more wavelengths from 200 to 650 nm.10. The method of claim 1 , where the method exhibits a quantum efficiency of at least 50%.11. The method of claim 10 , wherein the quantum efficiency is at least 70%.12. The method of claim 1 , wherein the COis continuously flowed through a suspension of the CuO in water during the irradiating.13. The method of claim 1 , wherein the CuO having a (i i 0) facet is prepared by a method comprising admixing copper acetate claim 1 , sodium hydroxide claim 1 , glucose claim 1 , and a surfactant and heating the admixture to 60° C. for 30-90 minutes to form the CuO having a (i i 0) facet.14. The method of claim 13 , wherein the surfactant comprises sodium dodecyl sulfate.15. A method of converting COto CO comprising{'sub': 2', '2', '2', '2, 'irradiating CO, water, and MoSadsorbed onto CuO to form CO, wherein the CuO has a (i i 0) facet, and i is 1 to 12.'}16. The method of claim 15 , wherein the irradiating comprises exposure to ultraviolet to ...

DIRECT SYNTHESIS METHOD OF NANOSTRUCTURED CATALYST PARTICLES ON VARIOUS SUPPORTS AND CATALYST STRUCTURE PRODUCED BY THE SAME

Disclosed is a direct synthesis method of nanostructured catalyst particles on surfaces of various supports. In the disclosed synthesis method of a catalyst structure having a plurality of nanostructured catalyst particles dispersed in a support by a one-step process using a high-temperature high-pressure closed reactor, the one-step process includes supplying the support and a catalyst source into the high-temperature high-pressure closed reactor; supplying an atmosphere forming gas of the reactor into the reactor; perfectly sealing the high-temperature high-pressure closed reactor and heating the reactor to produce the catalyst structure in the reactor under self-generated pressure and synthesis temperature conditions, the catalyst structure including the plurality of nanostructured catalyst particles dispersed in the support; removing internal gases of the reactor to allow the reactor to be in a high-temperature, atmospheric pressure state and supplying an inert gas into the reactor to remove unreacted materials and byproducts remaining in the reactor; and cooling the reactor to room temperature while supplying the inert gas to synthesize the catalyst structure.

CATALYST FOR THE SYNTHESIS OF METHYL MERCAPTAN AND PROCESS FOR PRODUCING METHYL MERCAPTAN FROM SYNTHESIS GAS AND HYDROGEN SULPHIDE

The invention relates to a catalyst comprising an active component based on molybdenum and on potassium and a support based on hydroxyapatite, and also to a process for preparing said catalyst and a process for producing methyl mercaptan in a catalytic process by reaction of carbon monoxide, sulphur and/or hydrogen sulphide and hydrogen, comprising the use of said catalyst. 110-. (canceled)11. A catalyst comprising a molybdenum- and potassium-based active component and a hydroxyapatite-based support.12. The catalyst of claim 11 , wherein the catalyst support is hydroxyapatite having stoichiometric formula Ca(PO)(OH).13. The catalyst of claim 12 , wherein the molybdenum- and potassium-based active component is selected from the group consisting of compounds based on Mo—S—K claim 12 , compounds based on Mo—O—K claim 12 , and mixtures thereof.14. The catalyst of claim 13 , wherein the molybdenum- and potassium-based active component is obtained from a precursor having the formula KMoS.15. The catalyst of claim 14 , wherein the weight ratio of KMoSand Ca(PO)(OH)used to obtain the catalyst is{'br': None, 'sub': 2', '4', '10', '4', '6', '2, 'KMoS/Ca(PO)(OH)=31.3/100.'}16. The catalyst of claim 13 , wherein the molybdenum- and potassium-based active component is obtained from a precursor having structure KMoO.17. The catalyst of claim 16 , wherein the weight ratio of KMoOand Ca(PO)(OH)used to obtain the catalyst is:{'br': None, 'sub': 2', '4', '10', '4', '6', '2, 'KMoOCa(PO)(OH)=50.7/100.'}18. The catalyst of claim 11 , wherein the hydroxyapatite of the hydroxyapatite-based support has a Ca/P molar ratio ranging from 1.5 to 2.1.19. The catalyst of claim 11 , wherein the hydroxyapatite of the hydroxyapatite-based support has a Ca/P molar ratio of 1.67.20. The catalyst of claim 11 , wherein the hydroxyapatite-based support has a specific area greater than 25 m/g.21. The catalyst of claim 11 , wherein the hydroxyapatite-based support has a specific area greater than 40 m/g.22 ...

PROCESS FOR THE PREPARATION OF A CATALYST BASED ON TUNGSTEN FOR USE IN HYDROTREATMENT OR IN HYDROCRACKING

The invention concerns a process for the preparation of a catalyst based on tungsten intended for hydrotreatment or hydrocracking processes. 1. A process for the preparation of a catalyst comprising at least one support , optionally at least one metal from group VIII of the periodic classification of the elements and at least tungsten , said process being characterized in that the tungsten is introduced onto the support , in an organic solvent A , in the form of at least one mononuclear precursor compound based on W , in its monomeric or dimeric form , having at least one W═O or W—OR bond or at least one W═S or W—SR bond where [R═CHwhere x≧1 and (x−1)≦y≦(2x+1) or R═Si(OR′)or R═Si(R′)where R′═CH where x′≧1 and (x′−1)≦y′≦(2x′+1)].2. The process as claimed in claim 1 , in which the metal from group VIII is selected from cobalt claim 1 , iron or nickel.3. The process as claimed in claim 2 , in which the metal from group VIII is nickel.4. The process as claimed in claim 1 , in which the tungsten precursor is a mononuclear precursor based on tungsten W claim 1 , used in its monomeric or dimeric form claim 1 , with formula{'br': None, 'sub': n', 'n′', 'a', 'b', 'e', 'd', 'e', 'f', 'g, 'W(═O)(═S)(OR)(SR′)(L1)(L2)(L3)(L4)(L5),'}{'sub': x', 'y', '3', '3', 'x′', 'y′, 'where R═CHwhere x≧1 and (x−1)≦y≦(2x+1) or R═Si(OR″)or R═Si(R″)where R″═C′H′ where [x″≧1 and (x″−1)≦y″≦(2x″+1)],'}{'sub': x′', 'y′', '3', '3', 'x′″', 'y′″, 'where R′═CH where x′≧1 and (x′−1)≦y′≦(2x′+1) or R′═Si(OR′″)or R′═Si(R′″)where R′″═CH where [x′″≧1 and (x′″-1)≦y′″≦(2x′″+1)],'}where 0≦n+n′≦2 and 0≦n≦2 and 0≦n′≦2,where, if n=n′=0, then (a≠0 or b≠0) and [(a+b+c+d+e+f+g=6 and 0≦a≦6, 0≦b≦6, 0≦c≦6, 0≦d≦6, 0≦e≦6, 0≦f≦6, 0≦g≦6, or (a+b+c+d+e+f+g=5 and 0≦a≦5, ≦b≦5, ≦c≦5, ≦d≦5, ≦e≦5, ≦f≦5, ≦g≦5), or (a+b+c+d+e+f+g=4 and 0≦a≦4, ≦b≦4, ≦c≦4, ≦d≦4, ≦e≦4, ≦f≦4, ≦g≦4)],where, if [(n=1 and n′=0) or (n′=1 and n=0)], then [(a+b+c+d+e+f+g=4 and 0≦a≦4, ≦b≦4, ≦c≦4, ≦d≦4, ≦e≦4, ≦f≦4, ≦g≦4)] or [(a+b+c+d+e+f+g=3 and 0≦a≦3, 0≦b≦3, 0 ...

Template-Assisted Synthesis of 2D Nanosheets Using Nanoparticle Templates

A template-assisted method for the synthesis of 2D nanosheets comprises growing a 2D material on the surface of a nanoparticle substrate that acts as a template for nanosheet growth. The 2D nanosheets may then be released from the template surface, e.g. via chemical intercalation and exfoliation, purified, and the templates may be reused.

MoS2 Foam

A method for the synthesis of molybdenum disulphide foam wherein the porosity of the foam can be controlled. The porosity of the foam is employed to adapt the foam to various processes and specific requirements. The foam molybdenum disulphide structures have internal cavities are interconnected to create a large processing surface area 1. A method for the synthesis of molybdenum sulfide foam comprising:providing a solid material of molybdenum sulfide;selecting one or more intercalation species;inserting the one or more intercalation species into the solid material; andfoaming the resulting material.2. The method of claim 1 , wherein the one or more intercalation species are selected from the group consisting of alkali metals.3. A method for the synthesis of molybdenum sulfide foam comprising:providing a combination of precursors;drying the combination of precursors to form a film; andheating the film to generate the molybdenum sulfide foam.4. The method of claim 3 , wherein the heating takes place in a nitrogen gas atmosphere.5. The method of claim 3 , wherein the precursors comprises at least one of laponite claim 3 , PVOH and ammonium tetrathiomolybdate.6. A chemical catalysis form of porous molybdenum disulfide having a plurality of interconnecting cavities in the form of a foam.7. A method of removing sulfur from a fluid comprising:placing a catalyst of molybdenum sulfide foam in the fluid.8. The method of claim 7 , wherein the molybdenum sulfide is MoS. This application claims priority to and benefit of U.S. Provisional Application No. 62/119,534 filed on 23 Feb. 2015.The aforementioned provisional patent application is hereby incorporated by reference in its entirety.None.1. Field of the InventionThe present invention relates to the production of a foam, for example from molybdenum sulfide (MoS), and more particularly, synthesis of molybdenum sulfide (MoS) foam.2. Brief Description of the Related ArtThere is a great demand for energy worldwide due to increases ...

Simultaneous Production of Base Oil and Fuel Components from Renewable Feedstock

The present invention provides a method for simultaneous production of components suitable for production of base oil and fuel components. In the method a feedstock comprising fatty acids and/or fatty acid esters is entered into a reaction zone and subjected to a ketonisation reaction in the presence of a dual catalyst system. This system is configured to perform a ketonisation reaction and a hydrotreatment reaction, under hydrogen pressure. Subsequently ketones are obtained. 18.-.(canceled)9. A dual catalyst system configured to perform a ketonisation reaction and a hydrotreatment reaction , comprisinga metal oxide ketonisation catalyst in which the metal is selected from the group consisting of Na, Mg, K, Ca, Sc, Cr, Mn, Fe, Co, Ni, Cu, Zn, Sr, Ti, Y, Zr, Mo, Rh, Cd, Sn, La, Pb, Bi, Ti, V and other rare each metals and any combination thereof; anda metal hydrotreatment catalyst wherein the metal is selected from the group consisting of Fe, Pd, Pt, Ni, Mo, Co, Ru, Rh, W and any combination thereof.10. The dual catalyst system according claim 9 , to claim 9 , wherein said dual catalyst system comprises a mixture or combination of a ketonisation catalyst and a hydrotreatment catalyst.11. The dual catalyst system according to claim 10 , wherein said dual catalyst system contains 40-90% by weight of said ketonisation catalyst claim 10 , preferably 70-90% by weight of said ketonisation catalyst.122. The dual catalyst system according to claim claim 10 , wherein said ketonisation catalyst is a metal oxide catalyst claim 10 , in which the metal is selected from the group consisting of K claim 10 , Ti claim 10 , and a combination thereof.13. The dual catalyst system according to claim 9 , wherein the dual catalyst system is supported claim 9 , preferably on alumina claim 9 , silica or active carbon support.142. The dual catalyst system according to claim claim 9 , wherein said dual catalyst system comprises NiMo and K2O/TlO2 on a support.152. The dual catalyst system ...

PHOTOCATALYTIC COMPOSITE MATERIAL AND PREPARATION METHOD AND APPLICATION THEREOF

The present invention provides a preparation method of a photocatalytic composite material, and relates to the field of catalyst technologies. The preparation method provided in the present invention includes the following steps: (1) subjecting plant leaves to soaking pretreatment to obtain template biomass; (2) mixing a molybdenum source-sulfur source aqueous solution with the template biomass obtained in step (1) and conducting impregnation to obtain a composite material precursor; and (3) calcining the composite material precursor obtained in step (2) to obtain the photocatalytic composite material. The photocatalytic composite material in the present invention includes acicular molybdenum sulfide and biomass carbon, the acicular molybdenum sulfide is loaded to a surface of the flake carbon, the mass content of the biomass carbon is 70% to 90%, and the mass content of the molybdenum sulfide is 10% to 30%. Performance of photocatalytic hydrogen production of the photocatalytic composite material in the present invention is better than that of a pure molybdenum sulfide material and has excellent photocorrosion resistance, and hydrogen production efficiency is reduced by only approximately 10% after three cycles. 1. A preparation method of a photocatalytic composite material , comprising the following steps:(1) subjecting plant leaves to soaking pretreatment to obtain template biomass;(2) impregnating, in a molybdenum source-sulfur source aqueous solution, the template biomass obtained in step (1) to obtain a composite material precursor; and(3) calcining the composite material precursor prepared in step (2) to obtain the photocatalytic composite material.2Sinaraundinaria nitidasalixIndocalamusPhyllostachys sulphureaPhyllostachys nigra. The preparation method according to claim 1 , wherein the plant leaves comprise leaves claim 1 , leaves claim 1 , leaves claim 1 , leaves claim 1 , or leaves.3. The preparation method according to claim 1 , wherein a concentration of ...

Nanowire-based Hydrodesulfurization Catalysts for Hydrocarbon Fuels

The present development is a metal particle coated nanowire catalyst for use in the hydrodesulfurization of fuels and a process for the production of the catalyst. The catalyst comprises titanium(IV) oxide nanowires wherein the nanowires are produced by exposure of a TiO—KOH paste to microwave radiation. Metal particles selected from the group consisting of molybdenum, nickel, cobalt, tungsten, or a combination thereof, are impregnated on the metal oxide nanowire surface. The metal impregnated nanowires are sulfided to produce catalytically-active metal particles on the surface of the nanowires The catalysts of the present invention are intended for use in the removal of thiophenic sulfur from liquid fuels through a hydrodesulfurization (HDS) process in a fixed bed reactor. The presence of nanowires improves the HDS activity and reduces the sintering effect, therefore, the sulfur removal efficiency increases. 1. A catalyst comprising metal oxide nanowires with metal particles adhered to the surface of the nanowires to form a metal decorated nanowire catalyst wherein the metal oxide nanowires comprise titanium(IV) oxide powder or anatase phase titanium dioxide powder , and wherein the metal particles decorating the metal oxide nanowires are selected from the group consisting of molybdenum oxide , nickel oxide , cobalt oxide , tungsten oxide , an alloy of molybdenum oxide and nickel oxide , an alloy of molybdenum oxide and cobalt oxide , an alloy of molybdenum oxide and tungsten oxide , an alloy of nickel oxide and cobalt oxide , an alloy of nickel oxide and tungsten oxide , an alloy of cobalt oxide and tungsten oxide , and a combination thereof.2. The catalyst of wherein the decorated metal oxide nanowire catalyst has a metal loading from 3 wt % to 20 wt %.3. The catalyst of wherein the metal oxide powder comprises a binder at a concentration of from 0 wt % to 25 wt % of the nanowire claim 1 , and wherein the binder is selected from the group consisting of alumina ...

TRIMETALLIC BASE METAL DEWAXING CATALYST

Methods, catalysts, and corresponding catalyst precursors are provided for performing dewaxing of diesel or distillate boiling range fractions. The dewaxing methods, catalysts, and/or catalyst precursors can allow for production of diesel boiling range fuels with improved cold flow properties at desirable yields. The catalysts and/or catalyst precursors can correspond to supported base metal catalysts and/or catalyst precursors that include at least two Group 8-10 base metals supported on the catalyst, such as a catalyst/catalyst precursor including both Ni and Co as supported metals along with a Group 6 metal (i.e., Mo and/or W). The support can correspond to a support including a zeolitic framework structure. The catalyst precursors can be formed, for example, by impregnating a support including a zeolitic framework structure with an impregnation solution that also includes a dispersion agent. 1. A catalyst precursor comprising at least two Group 8-10 base metals , at least one Group 6 metal , and a dispersion agent supported on a support comprising a zeolitic framework structure , the catalyst precursor having a molar ratio of a first Group 8-10 base metal to a second Group 8-10 base metal of 0.1 to 10 , a molar ratio of the at least two Group 8-10 base metals to the at least one Group 6 metal of 0.1 to 1.0 , and a molar ratio of dispersion agent to the at least two Group 8-10 base metals and the at least one Group 6 metal of 0.5 to 3.0.2. The catalyst precursor of claim 1 , wherein the zeolitic framework structure comprises ZSM-48 claim 1 , ZSM-11 claim 1 , a zeolitic framework structure having a 10-member ring as a largest pore channel claim 1 , or a combination thereof.3. The catalyst precursor of claim 2 , wherein the zeolitic framework structure comprises an MEL framework structure claim 2 , the zeolitic framework structure further comprising a) a molar ratio of silica to alumina of about 35 to about 55; b) an alpha value of at least about 380; c) a total ...

Method for preparing two-dimensional hybrid composite

The present invention relates to a method for preparing a two-dimensional hybrid composite that is capable of solving the problems with the two-dimensional plate type materials, that is, step difference, defects, stretching, etc., that occur as the second-dimensional plate type materials overlap with one another. The present invention provides a method for preparing a two-dimensional hybrid composite that includes: (a) preparing a first plate type material in the solid or liquid state; (b) mixing a second plate type material with the first plate type material, the second plate type material being thinner and more flexible than the first plate type material; (c) mixing a solid or liquid binder with the first and second plate type materials to make the first and second plate type materials partly contact with or apart from each other; and (d) solidifying a composite formed by the steps (a), (b) and (c).

NOVEL PROCESS FOR SCALABLE SYNTHESIS OF MOLYBDENUM DISULFIDE MONOLAYER AND FEW-LAYER FILMS

The present disclosure relates to nanosheet synthesis. More particularly, the present disclosure relates to molybdenum sulfide (MoS) atomic thin films and hydrogen evolution reactions. In one or more embodiments, a synthesis process may include sublimation of sulfur and MoCl, reaction of MoCland S to produce gaseous MoSspecies, transfer of the MoSspecies by carrier gas, diffusion of MoSspecies from the gas phase onto receiving substrates, and precipitation of MoSon the substrates. 1. A synthesis process comprising:{'sub': '5', 'sublimation of sulfur and MoCl;'}{'sub': 5', '2, 'reaction of MoCland S to produce gaseous MoSspecies;'}{'sub': '2', 'transfer of the MoSspecies by carrier gas;'}{'sub': 2', '2, 'diffusion and precipitation of MoSspecies from the gas phase onto a substrate under suitable conditions that one to four layer(s) of MoSform on the substrate.'}2. The synthesis process of claim 1 , wherein MoClis reacted with sulfur at a temperature of about 300° C. to about 1000° C. to give rise to MoSon the substrate.3. The synthesis process of claim 2 , wherein MoClis reacted with sulfur at a temperature of about 600° C. to about 900° C. to give rise to MoSon the substrate.4. The synthesis process of claim 1 , wherein the substrate is highly ordered pyrolytic graphic (HOPG).5. The synthesis process of claim 1 , wherein one layer of MoSis formed on the substrate.6. The synthesis process of claim 1 , wherein two layers of MoSare formed on the substrate.7. The synthesis process of claim 1 , wherein four layers of MoSare formed on the substrate.8. A method of producing hydrogen which comprises contacting a suitable reactant under appropriate conditions with the layered MoS2 substrate prepared by the synthesis process of . This application claims the benefit of 61/821,289 filed May 9, 2013, Iezzi et al. entitled “NOVEL PROCESS FOR SCALABLE SYNTHESIS OF MOLYBDENUM DISULFIDE MONOLAYER AND FEW-LAYER FILMS,” Attorney Docket No. 127/27 PROV, which is hereby incorporated by ...

VAPOR CRACKING CATALYST, PREPARATION METHOD THEREOF, AND COMBUSTION METHOD OF HYDROGEN OBTAINED BY VAPOR CRACKING

The invention provides a vapor cracking catalyst, an application of the vapor cracking catalyst, and a preparation method of the vapor cracking catalyst. In addition, the invention also provides a direct combustion method of a hydrogen gas obtained by vapor cracking. A plenty of cheap raw materials are adopted to prepare the catalyst provided by the invention and it leads to lower cost for production. In addition, the catalyst provided by the invention is capable of controlling the vapor cracking speed steadily so that the hydrogen gas is produced steadily and occurrence of explosion accidents is avoided effectively. The direct combustion method of a hydrogen gas obtained by vapor cracking provided by the invention truly achieves for the first time the fancy of producing hydrogen energy by water. 1. A vapor cracking catalyst , comprising: iron , aluminum , molybdenum , platinum , manganese and at least one alkali-metal; wherein said iron and said aluminum are their respective simple substances , and said molybdenum , said platinum , said manganese and said at least one alkali-metal are their respective simple substances or compounds , respectively.2. The vapor cracking catalyst according to claim 1 , wherein said platinum is a simple substance claim 1 , the compound of said alkali-metal is sodium salt claim 1 , the compound of said molybdenum is molybdenite claim 1 , and the compound of said manganese is manganese ore.3. The vapor cracking catalyst according to claim 2 , wherein said sodium salt is sodium chloride; wherein said iron is 1-15 wt. % claim 2 , said aluminum is 10-40 wt. % claim 2 , said platinum is 1-20 wt. % claim 2 , said sodium chloride is 1-15 wt. % claim 2 , said molybdenite is 10-30 wt. % claim 2 , and said manganese ore is 10-50 wt. % claim 2 , based on total weight of said vapor cracking catalyst.4. The vapor cracking catalyst according to claim 3 , wherein said iron is 3-10 wt. % claim 3 , said aluminum is 15-30 wt. % claim 3 , said platinum is ...

CATALYST FOR A SULPHUR RECOVERY PROCESS WITH CONCURRENT HYDROGEN PRODUCTION, METHOD OF MAKING THEREOF AND THE SULPHUR RECOVERY PROCESS WITH CONCURRENT HYDROGEN PRODUCTION USING THE CATALYST

Disclosed is a catalyst suitable for the catalytic oxidative cracking of a HS-containing gas stream, particularly in the event that the stream also contains methane and/or ammonia. The catalyst comprises iron and molybdenum supported by a carrier comprising aluminium. The carrier preferably is alumina. The iron and molybdenum preferably are in the form of sulphides. Also disclosed is a method for the production of hydrogen from a HS-containing gas stream, comprising subjecting the gas stream to catalytic oxidative cracking so as to form Hand S, using a catalyst in accordance with any one of the preceding claims. 1. A catalyst suitable for the catalytic oxidative cracking of a HS-containing gas stream , the catalyst comprising iron and molybdenum supported by a carrier comprising aluminium.2. A catalyst according to claim 1 , wherein the iron is in the form of iron sulphide.3. A catalyst according to claim 1 , wherein the molybdenum is in the form of molybdenum sulphide.4. A catalyst according to claim 1 , wherein the aluminum is in the form of AlO.5. A catalyst according to claim 1 , wherein the iron is present in the catalyst in a range of from 1 to 50% by weight.6. A catalyst according to claim 1 , wherein the molybdenum is present in the catalyst in a range of from 1 to 50% by weight.7. A method for the production of hydrogen from a HS-containing gas stream claim 1 , comprising subjecting the gas stream to catalytic oxidative cracking so as to form Hand S claim 1 , using a catalyst in accordance with any one of the preceding claims.8. A method according to claim 7 , wherein the catalytic oxidative cracking is conducted with a molar ratio HS/Oin the feedstock higher than 2:1.9. A method according to claim 8 , wherein the ratio is 3:1-5:1.10. A method according to claim 7 , wherein the catalytic oxidative cracking is conducted using an oxygen-containing gas-stream comprising at least 40 vol. % oxygen.11. A method according to claim 10 , wherein the oxygen- ...

METHOD FOR PRODUCING A CATALYST

The present invention relates to the use of a molybdenum carboxylate as precursor of a catalyst based on molybdenum sulfide, and also to the process for preparing such a catalyst. The invention also relates to certain molybdenum carboxylates. 117-. (canceled)18. A process for preparing a catalyst based on molybdenum sulfide , the process comprising converting at least one molybdenum carboxylate into molybdenum sulfide; wherein the molybdenum carboxylate is selected from the group consisting of molybdenum neodecanoate , molybdenum nonanoate , molybdenum 3 ,5 ,5-trimethylhexanoate and molybdenum iso-octadecanoate.19. The process of claim 18 , wherein the catalyst based on molybdenum sulfide is used in a hydroconversion process.20. The process of claim 19 , wherein the hydroconversion process is a process for the hydroconversion of a heavy feedstock.21. The process of claim 18 , wherein the catalyst based on molybdenum sulfide is prepared in situ in a hydroconversion reactor.22. The process of claim 18 , wherein the catalyst based on molybdenum sulfide is in the form of nanoparticles of MoS.23. The process of claim 22 , wherein the nanoparticles of MoSare in the form of sheets.24. The process of claim 22 , wherein the nanoparticles of MoSare suspended in a hydroconversion reactor or dispersed at the surface of carbon-based particles present in a hydroconversion reactor.25. The process of claim 18 , further comprising combining the molybdenum sulfide with a cracking catalyst which is in the form of micrometric or nanoscale particles.26. The process of claim 25 , wherein nanoparticles of molybdenum sulfide are dispersed at the surface of the particles of the cracking catalyst.27. The process of claim 18 , wherein the catalyst based on molybdenum sulfide is composed of particles of a mineral material claim 18 , on which a layer of molybdenum sulfide is partially or completely deposited.28. The process of claim 27 , wherein the mineral material is preferably in the form of ...

PROCESS FOR SULPHUR RECOVERY WITH CONCURRENT HYDROGEN PRODUCTION FROM NH3 CONTAINING FEED

Disclosed is a method for the production of hydrogen from a HS-containing gas stream also containing ammonia, comprising subjecting both gas stream to catalytic oxidative cracking of both the HS and the NH, so as to form H, Sand N. In this method, preferably, an additional amount of oxygen is added as compared to the amount used for H2S catalytic oxidative cracking. Also, preferably, the contact time of the gas stream with the catalyst is increased. The catalyst preferably is provided as a single bed, and then preferably comprises iron and molybdenum supported by a carrier comprising aluminum. The preferred carrier is alumina. The iron and molybdenum preferably are in the form of sulfides. 1. A method for the production of hydrogen from a HS-containing gas stream , which gas stream also contains ammonia , comprising combining the gas stream with an oxygen containing gas stream to form a reactant mixture and subjecting said reactant mixture to catalytic oxidative cracking of both the HS and the NH , so as to form H , S , and N.2. A method according to claim 1 , wherein the catalytic oxidative cracking is conducted with a molar ratio HS/Oin the feedstock higher than 2:1 claim 1 , and a molar ratio NH/Oranging between 0.9 and 1.5.3. A method according to claim 2 , wherein the ratio HS/Ois 3:1-5:1.4. A method according to claim 1 , wherein the oxygen-containing gas-stream comprises at least 40% oxygen.5. A method according to claim 4 , wherein the oxygen-containing gas-stream is oxygen having a purity of from 90%-100%.6. A method according to claim 1 , wherein the catalytic oxidative cracking is conducted under the influence of a single catalyst selected from the group consisting of Pt claim 1 , Rh claim 1 , Ru claim 1 , Ir claim 1 , Pd claim 1 , Co claim 1 , Mo claim 1 , Ni claim 1 , Fe claim 1 , W claim 1 , Cu claim 1 , Cd and the corresponding sulphides.7. A method according to claim 1 , wherein the catalytic oxidative cracking is conducted under the influence of an ...

METHOD FOR MAKING HYDRODESULFURIZATION CATALYST INCLUDING CALCINATION

A method of preparing hydrodesulfurization catalysts having cobalt and molybdenum sulfide deposited on a support material containing mesoporous silica. The method utilizes a sulfur-containing silane that dually functions as a silica source and a sulfur precursor. The method involves an one-pot strategy for hydrothermal treatment and a single-step calcination and sulfidation procedure. The application of the hydrodesulfurization catalysts in treating a hydrocarbon feedstock containing sulfur compounds to produce a desulfurized hydrocarbon stream is also specified. 1. A calcination method for making a CoMoS hydrodesulfurization catalyst , the method comprising:mixing a molybdenum precursor, a cobalt precursor, a mercaptoalkyltrialkoxysilane, a structural directing surfactant, an acid, and a solvent to form a reaction mixture;hydrothermally treating the reaction mixture to form a dried mass; andcalcining the dried mass in a reducing atmosphere with an activation gas containing a mixture of hydrogen and an inert gas thereby forming the CoMoS hydrodesulfurization catalyst, wherein the hydrogen is 50-80% by volume relative to a total volume of the reducing atmosphere,wherein:the inert gas is at least one selected from the group consisting of argon, nitrogen, and helium; andthe CoMoS hydrodesulfurization catalyst comprises cobalt and molybdenumsulfide disposed on a support material comprising a mesoporous silica.2. The method of claim 1 , wherein the CoMoS hydrodesulfurization catalyst is not subjected to a sulfidation with a sulfidation reagent.3. The method of claim 1 , wherein the mercaptoalkyltrialkoxysilane is at least one selected from the group consisting of (mercaptomethyl)trimethoxysilane claim 1 , (mercaptomethyl)triethoxysilane claim 1 , (mercaptomethyl)tripropoxysilane claim 1 , (2-mercaptoethyl)trimethoxysilane claim 1 , (2-mercaptoethyl)triethoxysilane claim 1 , (2-mercaptoethyl)tripropoxysilane claim 1 , (3-mercaptopropyl)trimethoxysilane claim 1 , (3- ...

PRODUCTION OF MIXED ALCOHOLS FROM SYNTHESIS GAS

Higher mixed alcohols are produced from syngas contacting a catalyst in a reactor. The catalyst has a first component of molybdenum or tungsten, a second component of vanadium, a third component of iron, cobalt, nickel or palladium and optionally a fourth component of a promoter. The first component forms alcohols, while the vanadium and the third component stimulates carbon chain growth to produce higher alcohols. 1. A process for producing a mixture of alcohols from a syngas comprising the steps of:a) establishing a catalyst comprising crystalline molybdenum sulfide, crystalline cobalt sulfide and vanadium sulfide in a reactor;b) pressurizing said reactor;c) passing said syngas over said catalyst;d) heating said catalyst and said syngas; ande) producing said mixed alcohols.2. A process for producing an alcohol from a syngas as described in claim 1 , wherein said step of establishing said catalyst in a reactor comprises the step of establishing crystalline molybdenum sulfide in a reactor such that a concentration in the catalyst is 33-43% claim 1 , by weight claim 1 , and the concentration of vanadium is 2-14% claim 1 , by weight claim 1 , among the molybdenum sulfide claim 1 , the cobalt sulfide and the vanadium sulfide.3. A process for producing an alcohol from a syngas as described in claim 1 , wherein said step of establishing said catalyst in a reactor comprises the step of establishing crystalline molybdenum sulfide in a reactor such that a concentration in the catalyst of molybdenum is 36-43% claim 1 , by weight claim 1 , and the concentration of vanadium is 2-11% claim 1 , by weight claim 1 , among the molybdenum sulfide claim 1 , the cobalt sulfide and the vanadium sulfide.4. A process for producing an alcohol from a syngas as described in claim 1 , further comprising the step of establishing potassium in said reactor in the catalyst.5. A process for producing an alcohol from a syngas as described in claim 1 , wherein said step of establishing said ...

METHOD FOR THE PHOTOCATALYTIC REDUCTION OF CARBON DIOXIDE IMPLEMENTING A SUPPORTED PHOTOCATALYST MADE FROM MOLYBDENUM SULFIDE OR TUNGSTEN SULFIDE

The invention concerns a method for the photocatalytic reduction of carbon dioxide carried out in the liquid phase and/or in the gas phase under irradiation using a photocatalyst comprising a support made from alumina or silica or silica-alumina and nanoparticles of molybdenum sulfide or tungsten sulfide having a band gap greater than 2.3 eV, said method comprising the following steps: a) bringing a feedstock containing carbon dioxide and at least one sacrificial compound into contact with said photocatalyst, b) irradiating the photocatalyst with at least one source of irradiation producing at least one wavelength smaller than the width of the band gap of said photocatalyst so as to reduce the carbon dioxide and oxidise the sacrificial compound in the presence of said photocatalyst activated by said source of irradiation, in such a way as to produce an effluent containing, at least in part, C1 or above carbon-containing molecules, different from CO2. 1. A process for photocatalytic reduction of carbon dioxide carried out in the liquid phase and/or in the gas phase under irradiation using a photocatalyst comprising a support based on alumina or silica or silica-alumina and nanoparticles of molybdenum sulfide or of tungsten sulfide having a bandgap greater than 2.3 eV , said process comprising the following steps:a) bringing a feedstock containing carbon dioxide and at least one sacrificial compound into contact with said photocatalyst,{'sub': '2', 'b) irradiating the photocatalyst with at least one irradiation source producing at least one wavelength smaller than the bandgap of said photocatalyst so as to reduce the carbon dioxide and to oxidize the sacrificial compound in the presence of said photocatalyst activated by said irradiation source, in such a way as to produce an effluent containing, at least partly, C1 or above carbon-based molecules other than CO.'}2. The process as claimed in claim 1 , wherein claim 1 , when it is carried out in the gas phase claim 1 , ...

METHOD OF PREPARING HIGH ACTIVITY HYDROTREATING CATALYSTS

This disclosure relates to supported multi-metallic catalysts for use in the hydrotreating of hydrocarbon feeds, as well as a method for preparing such catalysts. The catalysts are prepared from a catalyst precursor comprised of at least one Group VIB metal, at least one Group VIII metal and an organic acid. The catalyst precursor is thermally treated to partially decompose the organic acid, then sulfided. The catalysts have a high carbon-as-carboxyl to total carbon ratio (C/C) as a result of a unique post-metal calcination method employed during the manufacture of the catalyst. 1. A method for preparing a catalyst composition suitable for hydrotreating hydrocarbon feedstocks , the method comprising:(a) impregnating an inorganic catalyst support with an aqueous solution containing (i) a salt of a Group VIB metal selected from Mo and W, (ii) a salt of a Group VIII metal selected from Co and Ni, and (iii) an organic acid;(b) drying the impregnated catalyst support, thereby resulting in a metal-organic component on a dried catalyst precursor;{'sub': carboxy', 'total, '(c) calcining the dried catalyst precursor in an oxygen-containing atmosphere for a time and temperature sufficient to oxidize some but not all of the organic portion of the metal-organic component, thereby resulting in a partially oxidized catalyst precursor having (i) a loss-on-ignition of greater than 1 to 20 wt. % and (ii) a carbon-as-carboxyl to total residual carbon ratio (C/C) of at least 0.10 as determined by X-ray photoelectron spectroscopy; and'}(d) sulfiding the partially oxidized catalyst precursor at sulfiding conditions in the presence of a sulfiding agent, thereby resulting in a sulfided catalyst composition.2. The method of claim 1 , wherein the inorganic catalyst support is selected from the group consisting of alumina claim 1 , silica claim 1 , and alumina-silica.3. The method of claim 1 , wherein the aqueous solution further comprises at least one phosphorus-containing acidic component. ...

BULK METALLIC CATALYSTS AND METHODS OF MAKING AND USING THE SAME

Bulk metallic catalyst precursors are provided that include a Group VIB metal, such as Ni, a Group VIII metal, such as Mo or W, an organic-compound based component, and an organo-metalloxane polymer or gel. The catalyst precursors can further include a binder. Amorphous sulfided catalysts formed from the catalyst precursors are also provided. The catalyst precursor can have a surface area of about 50 m/g or less. 1. A bulk metallic catalyst precursor comprising:a) Ni;b) Mo or W, wherein a combined amount of Ni and Mo or a combined amount of Ni or W is about 30 wt % to about 85 wt % on a metal oxide basis;c) about 10 wt % to about 60 wt % of an organic compound-based component, wherein the organic compound-based component is based on at least one organic complexing agent; andd) about 1 wt % to about 50 wt % of an organo-metalloxane polymer, an organo-metalloxane gel, or a combination thereof, wherein the organo-metalloxane polymer is selected from the group consisting of an organo-siloxane polymer, an organo-alumoxane polymer, an organo-titanoxane polymer, and a combination thereof.2. The bulk metallic catalyst precursor of claim 1 , wherein the catalyst precursor has a BET surface area of 50 m/g or less.3. The bulk metallic catalyst precursor of claim 1 , wherein the catalyst precursor comprises at least about 5 wt % of the organo-metalloxane polymer claim 1 , organo-metalloxane gel claim 1 , or combination thereof.4. The bulk metallic catalyst precursor of claim 1 , wherein the organic compound-based component is further based on organic functional groups from the organo-metalloxane polymer claim 1 , organo-metalloxane gel claim 1 , or combination thereof.5. The bulk metallic catalyst precursor of claim 1 , wherein the organo-metalloxane polymer claim 1 , organo-metalloxane gel claim 1 , or combination thereof is water soluble.6. The bulk metallic precursor of claim 1 , wherein the organo-metalloxane polymer comprises an organo-siloxane polymer claim 1 , and ...

HYDROTREATMENT CATALYSTS AND PROCESS FOR PREPARING SAID CATALYSTS

The present invention is in the field of heterogeneous catalysis. Particularly, the present invention relates to a process for preparing catalysts advantageously usable in the hydrotreatment processes, for example in hydrodesulphurization, hydrodenitrogenation, hydrodearomatization processes of hydrocarbons. More in particular, the present invention relates to a process for obtaining said catalysts, which comprise mixed oxides of Nickel, Aluminum, Molybdenum and Tungsten and optionally a transition metal Me selected from the group consisting of Zn, Mn, Cd, and a mixture thereof, an organic component C, and possibly an inorganic binder B. Said mixed oxides comprise an amorphous phase and a pseudo-crystalline phase isostructural to Wolframite. The present invention further relates to said hydrotreatment catalysts and a hydrotreatment process wherein said catalysts are used.

CATALYST FOR THE SYNTHESIS OF METHYL MERCAPTAN AND PROCESS FOR PRODUCING METHYL MERCAPTAN FROM SYNTHESIS GAS AND HYDROGEN SULPHIDE

The invention relates to a catalyst comprising an active component based on molybdenum and on potassium and a support based on hydroxyapatite, and also to a process for preparing said catalyst and a process for producing methyl mercaptan in a catalytic process by reaction of carbon monoxide, sulphur and/or hydrogen sulphide and hydrogen, comprising the use of said catalyst. 1. A catalyst comprising a molybdenum- and potassium-based active component and a hydroxyapatite-based support.2. The catalyst as claimed in claim 1 , wherein the catalyst support is hydroxyapatite having stoichiometric formula Ca(PO)(OH).3. The catalyst as claimed in claim 1 , wherein the molybdenum- and potassium-based active component is selected from the group consisting of compounds based on Mo—S—K claim 1 , compounds based on Mo—O—K claim 1 , and their mixtures.4. The catalyst as claimed in claim 3 , wherein the molybdenum- and potassium-based active component has been obtained from a precursor having structure KMoS.5. The catalyst as claimed in claim 4 , wherein the weight ratio of KMoSand Ca(PO)(OH)used to obtain the catalyst is{'br': None, 'sub': 2', '4', '10', '4', '6', '2, 'KMoS/Ca(PO)(OH)=31.3/100'}6. The catalyst as claimed in claim 3 , wherein the molybdenum- and potassium-based active component has been obtained from a precursor having structure KMoO.7. The catalyst as claimed in claim 6 , wherein the weight ratio of KMoOand Ca(PO)(OH)used to obtain the catalyst is:{'br': None, 'sub': 2', '4', '10', '4', '6', '2, 'KMoO/Ca(PO)(OH)=50.7/100'}8. A preparation process for the catalyst as defined in claim 1 , comprising the following steps:preparing a precursor for the molybdenum- and potassium-based active component;preparing the hydroxyapatite-based support; anddry impregnating the hydroxyapatite-based support with the precursor for the molybdenum- and potassium-based active component.9. A process for producing methyl mercaptan in a catalytic process by reacting carbon oxide claim 1 , ...