СПОСОБ ОТДЕЛЕНИЯ КАТАЛИЗАТОРА МЕТОДОМ МЕМБРАННОГО ЭЛЕКТРОДИАЛИЗА

Изобретение касается способа отделения при помощи мембранного электродиализа катализатора из содержащего этот катализатор раствора. Способ касается отделения из раствора катализатора, используемого в реакции молекулярного окисления в гомогенной фазе. Изобретение касается способа отделения гомогенного катализатора, растворенного в среде, содержащей также по меньшей мере одну двухосновную алифатическую кислоту, отличающегося тем, что упомянутый катализатор содержит кобальт и отделение этого катализатора осуществляется при помощи мембранного электродиализа. Технический результат - повышение эффективности отделения. 8 з.п. ф-лы, 6 табл.

СПОСОБ ПРЕВРАЩЕНИЯ ОЛЕФИНА ИЛИ СПИРТА И СПОСОБ ПОЛУЧЕНИЯ ПРОПИЛЕНА ИЛИ АРОМАТИЧЕСКОГО СОЕДИНЕНИЯ

FIELD: chemistry. SUBSTANCE: invention relates to a method of converting olefin or alcohol and a method of producing propylene or an aromatic compound. Method of converting olefin or alcohol involves the stage of preliminary treatment, in which a conducting catalyst is obtained by loading a reactor with a fluidized bed with a non-conducting catalyst containing zeolite and/or silicon oxide and feeding a heated hydrocarbon gas into the reactor with the fluidized bed for deposition of carbonaceous coke and its application of the non-conducting catalyst, and the stage of conversion of olefin or alcohol with the help of a reaction in the fluidized bed using the said conducting catalyst, where the gas feeding rate makes 0.40 m/sec or less at the stage of preliminary treatment in the form of the gas flow rate in the fluidized bed reactor, and the gas feeding rate is 0.5 m/sec or more at the stage of conversion of olefin or alcohol in the form of the gas flow rate in the fluidized bed reactor. EFFECT: invention provides suppression of electrostatic charging of the catalyst and high efficiency of the reaction. 7 cl, 9 dwg, 1 tbl, 4 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 599 749 C2 (51) МПК B01J 8/24 (2006.01) B01J 29/00 (2006.01) C07C 2/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2015103122/05, 09.08.2013 (24) Дата начала отсчета срока действия патента: 09.08.2013 (72) Автор(ы): ИИЦУКА Такехиро (JP), ТАКАМАЦУ Йосиказу (JP) 10.08.2012 JP 2012-178398 (43) Дата публикации заявки: 27.09.2016 Бюл. № 27 R U (73) Патентообладатель(и): АСАХИ КАСЕИ КЕМИКАЛЗ КОРПОРЕЙШН (JP) Приоритет(ы): (30) Конвенционный приоритет: (45) Опубликовано: 10.10.2016 Бюл. № 28 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 10.03.2015 (86) Заявка PCT: 2 5 9 9 7 4 9 (56) Список документов, цитированных в отчете о поиске: JP 2004-345972 A, 09.12.2004. JP 0291030 A, 30.03.1990. JP 2012-120978 A, 28.06.2012. RU ...

РЕАКТИВИРОВАННЫЕ КАТАЛИЗАТОРЫ ГИДРООЧИСТКИ ДЛЯ ПРИМЕНЕНИЯ В СНИЖЕНИИ ВЫБРОСОВ СЕРЫ

Изобретение относится к способу обработки газообразного потока в процессе обработки отходящих газов, при этом способ включает контактирование газообразного потока с катализатором, который был ранее использован в процессе гидроочистки, и который был реактивирован в процессе реактивации перед контактированием газообразного потока в процессе обработки отходящих газов, причем газообразный поток включает одно или более серосодержащих веществ, выбранных из группы, состоящей из элементарной серы (Sx), диоксида серы (SO2), карбонилсульфида (COS) и сероуглерода (CS2), и при этом при контактировании газообразного потока с реактивированным катализатором в присутствии водорода (H2) происходит превращение одного или более серосодержащих веществ в сероводород (H2S), и при этом катализатор включает либо кобальт и молибден, нанесенные на оксид алюминия, либо никель и молибден, нанесенные на оксид алюминия, и при этом процесс реактивации включает регенерацию или восстановление, и причем регенерация включает ...

РЕГЕНЕРАЦИЯ КАТАЛИЗАТОРА

FIELD: chemistry. SUBSTANCE: invention relates to field of catalyst. Described is method of regenerating waste catalytic mixture, which contains (i) catalyst of isomerisation, containing magnesium oxide, and (ii) metathesis catalyst, which contains inorganic carrier and at least one component from molybdenum oxide and tungsten oxide, which includes: (a) removal of coke from waste catalytic mixture in presence of oxygen-containing gas, with obtaining coke-free catalytic mixture; and (b) contact of coke-free catalytic mixture with steam at temperature in the interval from 100 to 300°C with obtaining regenerated catalytic mixture. EFFECT: obtaining regenerated catalytic mixture. 6 cl, 1 tbl, 3 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 503 499 (13) C2 (51) МПК B01J 38/06 B01J 38/12 (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2011132046/04, 17.11.2009 (24) Дата начала отсчета срока действия патента: 17.11.2009 (73) Патентообладатель(и): ЛАЙОНДЕЛЛ КЕМИКАЛ ТЕКНОЛОДЖИ, Л.П. (US) R U Приоритет(ы): (30) Конвенционный приоритет: 30.12.2008 US 12/317,873 (72) Автор(ы): ПО-СУМ ШУМ Уилфред (US) (43) Дата публикации заявки: 10.02.2013 Бюл. № 4 2 5 0 3 4 9 9 (45) Опубликовано: 10.01.2014 Бюл. № 1 2 5 0 3 4 9 9 R U (85) Дата начала рассмотрения заявки PCT на национальной фазе: 01.08.2011 C 2 C 2 (56) Список документов, цитированных в отчете о поиске: US 3962126 A, 08.06.1976. US 4559320 A, 17.12.1985. US 3996166 A, 07.12.1976. US 4217244 A, 12.08.1980. WO 1994008922 A1, 28.04.1994. US 20070129235 A1, 07.06.2007. RU 2140410 C1, 27.10.1999. RU 2291143 C2, 10.01.2007. US 20080146856 A1, 19.06.2008. (86) Заявка PCT: US 2009/006147 (17.11.2009) (87) Публикация заявки РСТ: WO 2010/077265 (08.07.2010) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры" (54) РЕГЕНЕРАЦИЯ КАТАЛИЗАТОРА (57) Реферат: Изобретение относится к области катализа. Описан способ ...

Способ приготовления и регенерации катализатора гидроксилирования ароматических соединений закисью азота и способ гидроксилирования ароматических соединений

FIELD: chemistry. SUBSTANCE: method for producing a hydroxylation catalyst for aromatic compounds with nitrogen oxide, which is an iron-containing zeolite of the MFI structure and/or MEL with a binder, modified with the ruthenium compounds in the amount of 0.01-5.0 wt % based on the metal, the soluble ruthenium compound is introduced in the step of forming the zeolite with the binder, or after moulding and calcining, or after moulding, calcining and thermocouple processing. The catalyst is regenerated at the temperature of 450-475°C in an inert gas medium containing 1 to 2 wt % of oxygen. EFFECT: maximum activity and selectivity of the catalyst. 7 cl, 1 tbl, 11 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 630 473 C1 (51) МПК B01J 37/00 (2006.01) B01J 38/14 (2006.01) B01J 29/068 (2006.01) C07C 37/60 (2006.01) C07C 39/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2016142217, 27.10.2016 (24) Дата начала отсчета срока действия патента: 27.10.2016 Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 27.10.2016 (45) Опубликовано: 11.09.2017 Бюл. № 26 C 1 6900358 B2, 31.05.2005. RU 2280638 C2, 27.07.2006. RU 2205688 C1, 10.06.2003. RU 2127721 C1, 20.03.1999. US 5110995 A1, 05.05.1992. WO 2006077034 A1, 27.07.2006. R U (54) Способ приготовления и регенерации катализатора гидроксилирования ароматических соединений закисью азота и способ гидроксилирования ароматических соединений (57) Реферат: Изобретение касается способа приготовления соединениями рутения в количестве 0,01-5,0 мас. и регенерации цеолитных катализаторов после % в расчете на металл, растворимое соединение их дезактивации в результате закоксовывания в рутения вводят на стадии формования цеолита реакциях гидроксилирования ароматических со связующим, или после формования и соединений закисью азота в газовой фазе, в прокаливания, или после формования, частности в реакциях гидроксилирования бензола прокаливания и термопаровой обработки. и ...

СПОСОБ ОЦЕНКИ КОНЦЕНТРАЦИИ КОМПОНЕНТОВ СЕРЫ В БЕНЗИНЕ

Изобретение относится к способу оценки концентрации компонентов серы в бензине. Предложен способ оценки концентрации компонентов серы в бензине, который содержит компоненты серы и ароматические компоненты, при этом способ содержит: (A1) удаление части бензина путем превращения в газ для снижения соотношения концентрации ароматических компонентов относительно концентрации компонентов серы в бензине, причем бензин превращают в газ в концентрации 8,0 об. % или более, (A2) измерение значений, связанных с показателем преломления бензина, и (A3) оценку концентрации компонентов серы в бензине на основе значений, связанных с показателем преломления. Также предложен способ для восстановления каталитического нейтрализатора отработавших газов, который очищает отработавшие газы, выбрасываемые двигателем внутреннего сгорания, в котором сжигают бензин. Технический результат заключается в оценке концентрации компонентов серы в бензине с высокой точностью. 2 н. и 5 з.п. ф-лы, 5 ил., 2 табл., 3 пр.

СПОСОБЫ УПРАВЛЕНИЯ ЧАСТИЧНЫМ ВОССТАНОВЛЕНИЕМ ОТРАБОТАННОГО КАТАЛИЗАТОРА

Настоящее изобретение относится к способам управления восстановлением отработанного катализатора, используемого в способе конверсии оксигената в олефин, и, в частности, к способам управления различными параметрами для получения частично восстановленного катализатора с требуемым количеством кокса. Описан способ управления восстановлением катализатора МТО в зоне восстановления катализатора, включающий: подачу кислородсодержащего газа (26) в зону (14) восстановления катализатора; частичное восстановление потока отработанного катализатора (10) из реакционной зоны (12) метанол-в-олефины (MTO), причем отработанный катализатор (10) включает кокс; отделение восстановленного катализатора (28) от дымового газа (30), причем восстановленный катализатор (28) имеет пониженное количество кокса, и при этом дымовой газ (30) содержит монооксид углерода и диоксид углерода; рециркуляцию части (44) дымового газа (30) в зону (14) восстановления катализатора вместе с кислородсодержащим газом (26); и поддержание ...

СПОСОБ УМЕНЬШЕНИЯ ОБРАЗОВАНИЯ ПОБОЧНЫХ ПРОДУКТОВ ПРИ ПОЛУЧЕНИИ ГАЛОГЕНАЛКАНОВЫХ СОЕДИНЕНИЙ

... 1. Способ получения галогеналкановых соединений из тетрахлорида углерода и алкена, при котором образующиеся побочные продукты CClминимизированы в течение фазы запуска реакции, включающий стадию проведения реакции с железным металлическим катализатором и одним или несколькими фосфорорганическими соединениями в качестве сокатализатора.2. Способ по п.1, дополнительно включающий стадию, на которой FeClвводят в реактор после проведения фазы запуска процесса и получения количества галогеналканового соединения.3. Способ по п.2, при котором алкен выбран из группы, состоящей из винилхлорида, этилена и 2-хлорпропена.4. Способ по п.2, при котором галогеналкановые соединения выбраны из группы, состоящей из HCC-240fa, НСС-250 и НСС-360.5. Способ по п.2, при котором железный металлический катализатор обладает формой, выбранной из группы, состоящей из железного порошка, железных шариков, железной проволоки, железной стружки и их смесей.6. Способ по п.2, при котором фосфорорганический сокатализатор выбран ...

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 ...

Katalytische Metall-Rückgewinnung aus nichtpolaren organischen Lösungen.

Katalysatorsysteme auf der Basis von Rhodium-Komplexverbindungen mit Diphosphin-Liganden und ihre Verwendung bei der Herstellung von Aldehyden

Method of prolonging the period of activity of cuprous salt catalysts in the synthesis of acrylonitrile

In the synthesis of acrylonitrile from hydrocyanic acid and acetylene in the presence of an aqueous cuprous salt catalyst, the p period of activity of the cuprous salt catalyst, the period of activity of the cuprous salt catalyst is prolonged by contacting the catalyst with a solid surface-active adsorption medium during the synthesis so that by-products are removed from the catalyst by adsorption on said medium. The adsorption medium may be an inorganic substance, e.g. a surface-active earth such as kieselguhr, or active carbon such as animal charcoal or blood charcoal, or it may be an organic substance, e.g. an artificial resin such as an aminoplast or phenoplast. The adsorption may be effected by suspending the adsorption medium in the catalyst in which case the catalyst must be separated from the adsorption medium by filtration when the latter is exhausted, but it is preferred to incorporate the adsorption medium in a special vessel through which at least a part ...

Improvements in catalytic reactions

... 262,475. I. G. Farbenindustrie Akt.- Ges. Dec. 7, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Chlorine ; hydrogen.-The loss of cuprous chloride in the Deacon process may be overcome by passing the reaction gases containing the volatilized catalyst into contact with porous masses such as active carbon, active silica, and porous pumice arranged in the reaction vessel. The porous mass may be mixed with the catalyst, or may be separate therefrom. It is advantageous to place a porous mass on each side of the catalyst and to reverse the gas stream from time to time. The invention may be applied to the production of hydrogen and phosphoric acid by the interaction of water and phosphorus in the vaporous condition in the presence of a catalyst. If compounds containing the catalyst or the catalyst itself be placed adjacent the porous mass in the reaction chamber, the catalyst which becomes deposited within the pores of the porous mass is very active. Thus, by passing a mixture ...

Coated articles with high rate of NOx-SCR conversion and low SOx conversion rate

Articles comprising a catalyst film comprising VOx, MoO3 or WO3, and TiO2 deposited on a substrate are disclosed. The articles are useful for selective catalytic reduction (SCR) of NOx in exhaust gases. Methods for producing such articles deposit a catalyst film on the substrate to form a coated substrate, which is then calcined. When used in an SCR process, the coated articles have enhanced activity for NOx conversion, reduced activity for SOx conversion, or both. Light-weight, coated articles having high catalyst loads can be fabricated at the same or reduced dimensions when compared with laminated articles, and increased kNOx/kSOx ratios are available even from coated articles having relatively thin catalyst films. The articles should have particular value for power plant operations, where coal and high-sulfur fuels are commonly used and controlling sulfur trioxide generation is critical.

Process for the recovery of catalyst in oxidation reactions with nitric acid

The catalyst used in oxidation reactions with nitric acid is recovered, after separation of the desired oxidation product, by distilling the mother liquor under reduced pressure to remove nitric acid, diluting the residue with water to pH 1.5-6.0 and passing over an acid ion exchanger (e.g. sulphonated polystyrene), thereafter taking up the catalyst from the ion exchanger with nitric acid. In the examples, Cu + V is so recovered; Cr, Mo, W and Ni are also mentioned. Specifications 572,260, 633,354 and 756,679 are referred to.

PROCEDURE FOR SEPARATING AND COLLECTING DIALKYLZINNDIALKOXID

PROCEDURE FOR THE REGENERATION OF CATALYSTS.

PROCEDURE FOR THE DISTANCE OF DUST CONTAMINATION IN A WABENFÖRMIGEN CATALYST

PROCEDURE FOR THE PRODUCTION OF ALDEHYDES

PASSIVATION OF VANADIUM CONTAMINANTS OF CATALYTIC CRACKING CATALYSTS

System and method for prediction of deterioration

System and method for predicting the rate of deterioration of a first and optionally further items of process equipment, which first item of process equipment receives an inlet stream and discharges one or more outlet streams which are optionally fed to one or more further items of process equipment, which first and optional further items of process equipment are subject to deterioration by one or more deterioration mechanisms, which inlet stream comprises a feedstock or derivative thereof; wherein the method comprises the steps of; (a) obtaining values of one or more properties of the feedstock, (b) calculating a predicted rate of deterioration by the one or more deterioration mechanisms for each item of process equipment from the values of one or more of the feedstock properties; and (c) providing an output comprising the predicted rate of deterioration for each item of process equipment; and the system comprises a data processor adapted to receive values of one or more properties of ...

Process for preparing aldehydes

CATALYTIC METAL RECOVERY FROM NON-POLAR ORGANIC SOLUTIONS

Separation method

Process for preparing aldehydes

Alkylation process

Process for recovering catalyst supports

APPARATUS AND PROCESS FOR MINIMIZING CATALYST RESIDENCE TIME IN A REACTOR VESSEL

We have discovered a way to minimize the time that catalyst and gaseous products are in contact after exiting the discharge opening (22) of a reactor conduit (10). The reactor conduit discharges into a disengaging chamber (24) that is directly connected to a separator (32). A dipleg (34) of the separator is directly connected to the disengaging chamber or to an intermediate chamber (64) which is in direct communication with the disengaging chamber. Accordingly, catalyst never gets a chance to become entrained in the large open volume of the reactor vessel. Consequently, catalyst which makes it out of the disengaging chamber is quickly returned back to the disengaging chamber, thereby minimizing the time that catalyst and product gases are in contact after being discharged from the reactor conduit.

AUTOMATED CATALYST REGENERATION IN A REACTOR

AUTOMATED CATALYST REGENERATION IN A REACTOR A technique, including an apparatus, for automatically regenerating a catalyst used in a process for obtaining a product in an exit stream from a raw material in a feed stream of a reactor, comprises determining the concentration of raw material in the feed and exit stream and obtaining a value for the catalyst selectivity as a function of the difference between the concentrations. When a selected selectivity is reached, which is indicative of the need for the catalyst to be regenerated, regenerator equipment if activated for regenerating the catalyst in the reactor. To continue the process, the feed stream is transferred to an auxiliary reactor during regeneration of the primary reactor, which contains regenerated or fresh catalyst. When used in reactors for the hydrogenation of acetylene to ethylene, the concentration of hydrogen in the feed stream is also calculated with the selectivity equaling the concentration of hydrogen divided by the ...

CATALYST RECYCLE

CATALYST DEOILING PROCESS

An improved deoiling process is provided for removing substantial amounts of oil from spent catalyst withdrawn from resid hydrotreating units. In the process, a slurry of spent catalyst and oil is spirally conveyed at an upward angle of inclination in a spiral classifier. Oil is drained from the upwardly spiraling slurry to substantially separate the oil from the spent catalyst. The deoiled catalyst is discharged into a catalyst bin. Preferably, the bin is continuously weighed as the deoiled catalyst is discharged into the bin. The flow of deoiled catalyst into the bin is stopped when the weight of the catalyst-laden bin has reached a preselected weight.

DEVICE AND PROCESS FOR REMOVING WASHCOAT REMAINING IN THE DUCTS OF NEWLY COATED MONOLITHIC AND HONEYCOMBED CATALYST SUPPORTS AND USE OF SAID DEVICE

An apparatus and a method are disclosed for the removal and the recovery of washcoat remaining in the channels of freshly coated monolithic or honeycombed catalytic carriers. The carrier is inserted into a chamber from above and tightly fitted therein at least with the lowest part of the carrier therein. The chamber is fitted with a collection area and a runoff located thereunder. The runoff leads via a shutoff valve into a separation vessel under a vacuum. The opening and closing of the shutoff valve causes air to be aspirated through the carrier channels, which are open at the top or are gradually opened by means of a slotted slide. This action causes the washcoat remnants to he transferred into the separation vessel, where they can be collected in the sump and are then pumped off. The apparatus can be used in systems for manufacturing catalysts for cleaning exhaust gases.

CATALYST RECYCLE

REMOVAL AND RECOVERY OF SULUBLE PLATINUM CATALYSTS

METHOD FOR REGENERATING DENITRIFICATION CATALYST

It is provided a method for regenerating an NOx removal catalyst, comprising mixing an abrasive with a gas in a mixing part connected to an upstream portion of an upstream fixing member, transferring the abrasive which has been mixed with the gas from the mixing part, through suction by a dust-collecting part, to the upstream fixing member, reducing the flow rate of the mixture of the gas and the abrasive in the expanded part, to thereby temporarily retain the mixture in the expanded part, subseguently, causing the mixture to pass throgh through-holes of the NOx removal catalyst and a downstream fixing member, to thereby grind the inner walls of the through-holes, and subsequently collecting dust by the dust-collecting part via a classification part.

PROCESS FOR CONDITIONING A HIGH EFFICIENCY ETHYLENE OXIDE CATALYST

A process for conditioning a high efficiency silver catalyst used to manufacture ethylene oxide from ethylene, oxygen, and at least one organic chloride is described. A non-reactive conditioning gas comprising at least one of ethylene, oxygen, and a ballast gas is introduced to the catalyst at a conditioning temperature ranging from 150°C to 180°C for a selected period of at least 4 hours.

PROCESS FOR CATALYST REGENERATION AND EXTENDED USE

A method of producing an alkylaromatic by the alkylation of an aromatic with an alkylating agent, such as producing ethylbenzene by an alkylation reaction of benzene, is disclosed. The method includes using an H-beta catalyst to minimize process upsets due to alkylation catalyst deactivation and the resulting catalyst regeneration or replacement. The H-beta catalyst can be used in a preliminary alkylation reactor that is located upstream of the primary alkylation reactor. The H- beta catalyst used in a preliminary alkylation reactor can lead to the reactivation of the catalyst in the primary alkylation reactor.

Verfahren zur Rückgewinnung von Katalysator und Nebenprodukten aus Ablaugen

Verfahren zur kontinuierlichen Herstellung von Alkylnitraten

Procédé d'enrichissement en deutérium d'un composé hydrogéné

Verfahren zur Gewinnung von Katalysatoren und Essigsäure aus einem Essigsäuresynthesegemisch

Procédé de séparation des isotopes des métaux alcalins et notamment du lithium, et dispositif pour la réalisation de ce procédé

Verfahren und Vorrichtung zur Entnahme der flüssigen Phase aus einer Suspension mittels kontinuierlicher Filtration

Procédé de récupération de catalyseurs utilisés dans la fabrication de l'acide adipique

Verfahren und Vorrichtung zum Oxydieren von reduzierten Katalysatoren

Verfahren zur Regenerierung von Tellur enthaltenden Trägerkatalysatoren

Verfahren zur Herstellung von x-Amino-w-lactamen

SYSTEM OF EXTRACTING CATALYST, DEVICE FOR REACTION OF SYNTHESIS OF HYDROCARBONS, REACTION SYSTEM FOR SYNTHESIS OF HYDROCARBONS AND METHOD OF EXTRACTING CATALYST

METHOD FOR FILTERING A THREE-PHASED REACTION MIXTURE

Process for preparing aldehydes

Purification of syrup by adopting capacitive deionization method

Process for the recovery of catalyst dust

Process for the regeneration of catalysts ensuring the reconversion of the worn solutions having been used in the cyclic process as manufacture of hydrogen peroxide

Improvements brought to the processes to separate or obtain arsenic contained in various matters in an elementary state or in the shape of its compounds

Process of cracking of oil hydrocarbons in the presence of water soluble catalysts

Catalytic treatments

CATALYST REGENERATION OF REFORMING OR ISOMERIZATION OR DEHYDROGENATION OF PARAFFINS IN a VIBRATING HELICOID WHORL

L'invention concerne l'application d'un procédé de régénération de catalyseurs ou d'adsorbants, consistant à faire monter les particules de catalyseur dans une spire hélicoïdale vibrante (12) , lesdites particules étant soumises à un profil de température et mises en contact avec un ou plusieurs fluides sur une partie de leur trajet dans ladite spire, à la régénération de catalyseurs de réformage, d'isomérisation ou de déshydrogénation des paraffines. Le maintien de la spire à une température adéquate peut être obtenu en faisant circuler un gaz à température voulue à l'extérieur et au contact de la spire. Le régénérateur comprend au moins une zone de combustion (14) et au moins une zone d'oxychloration (15) , qui peuvent être confondues. Une zone de préchauffage (13) , une zone de calcination (16) et une zone de refroidissement du catalyseur peuvent également être comprises dans le dispositif.

탈질 촉매의 재생 방법

... 탈질 촉매로 이루어지는 피연삭 부재의 일단부에, 당해 피연삭 부재의 단면적보다 큰 단면적의 확장 개방부를 구비하는 상류 고정 부재(10)를 연결하는 한편, 상기 피연삭 부재의 타단부에, 당해 피연삭 부재와의 연결측 끝부로부터 소정 치수만 일정 단면적의 유로를 구비하는 하류 고정 부재(20)를 연결하고, 상기 상류 고정 부재의 상류측에는, 연삭재와 기체를 혼합하는 혼합부(40)를 상기 확장 개방부보다 작은 단면적의 유로를 갖는 연결 부재로 연결함과 아울러 상기 확장 개방부의 안쪽의 상기 피연삭 부재측에 소정 눈크기의 스크린 부재를 배치하고, 한편, 상기 하류 고정 부재의 상기 연결 부재의 하류측에는, 상기 피연삭 부재의 관통구멍을 통과한 연삭재와 당해 연삭재에 의해 연삭된 피연삭물을 분리하는 분급부(70)와, 이 분급부를 통하여 상기 혼합부의 기체를 흡인하는 집진부(80)를 연결하고, 상기 집진부에 의한 흡인에 의해, 상기 혼합부에서의 상기 기체에 혼합된 연삭재를 상기 상류 고정 부재에 보내고, 상기 확장 개방부에서 유속을 저하시켜 상기 기체와 연삭재의 혼합물을 일시적으로 체류시킨 후, 당해 혼합물을 상기 탈질 촉매의 관통구멍 및 상기 하류 고정 부재를 통과시켜 당해 관통로의 내벽을 연삭하고, 그 후에 상기 분급부를 통하여 상기 집진부에서 집진한다.

METAL SEPARATION AND RECOVERY METHOD

Provided is a method for separating and recovering a metal constituent from a member comprising, as the metal constituent, at least tungsten, molybdenum, or vanadium, wherein the method comprises the following: a step in which the member, a first molten material that comprises an alkali metal hydroxide or an alkali earth metal hydroxide, and a second molten material that differs from the first molten material and comprises at least an alkali metal hydroxide, an alkali earth metal hydroxide, an alkali metal salt, or an alkali earth metal salt are mixed to produce a compound; a step in which the compound and water are mixed to produce an extraction liquid of the metal constituent; and a step in which the extraction liquid and solid components are separated.

MICROWAVE ASSISTED DESULFURIZATION OF NITROGEN OXIDE STORAGE REDUCTION CATALYSTS

A process for removing sulfur and sulfur compounds from a catalyst includes the following steps: exposing the catalyst to a reducing atmosphere and exposing the catalyst to microwave energy. Desorption of the sulfur and sulfur compounds from the catalyst occurs at a temperature less than 600 degrees centigrade.

Pressure-tuned solid catalyzed heterogeneous chemical reactions

Improved methods for conducting solid acid-catalyzed, near- or supercritical heterogeneous chemical reactions (e.g., alkylation reactions) are provided which give enhanced product yields and permit longer processing runs. The preferred reactions of the invention are carried out in the presence of a solid macroporous catalyst having a surface area of from about 50-400 m2/g and a pore size of from about 70-150 Å. Product selectivity is enhanced by pressure-tuning of the reaction to promote production and separation of desired reaction products. In continuous processing, the chemical reaction may be interrupted before significant catalyst deactivation, followed by increasing reactor pressure and/or reducing reactor temperature to remove the accumulating coke; when the catalyst is regenerated, the original reaction conditions and reactant introduction may be resumed.

Catalyst deoiling process

An improved deoiling process is provided for removing substantial amounts of oil from spent catalyst withdrawn from resid hydrotreating units. In the process, a slurry of spent catalyst and oil is spirally conveyed at an upward angle of inclination in a spiral classifier. Oil is drained from the upwardly spiraling slurry to substantially separate the oil from the spent catalyst. The deoiled catalyst is discharged into a catalyst bin. Preferably, the bin is continuously weighed as the deoiled catalyst is discharged into the bin. The flow of deoiled catalyst into the bin is stopped when the weight of the catalyst-laden bin has reached a preselected weight.

Process for magnetic beneficiating petroleum cracking catalyst

A process for beneficiating a particulate zeolite petroleum cracking catalyst having metal values in excess of 1000 ppm nickel equivalents. The particulate catalyst is passed through a magnetic field in the range of from about 2 Tesla to about 5 Tesla generated by a superconducting quadrupole open-gradient magnetic system for a time sufficient to effect separation of said catalyst into a plurality of zones having different nickel equivalent concentrations. A first zone has nickel equivalents of about 6,000 ppm and greater, a second zone has nickel equivalents in the range of from about 2000 ppm to about 6000 ppm, and a third zone has nickel equivalents of about 2000 ppm and less. The zones of catalyst are separated and the second zone material is recycled to a fluidized bed of zeolite petroleum cracking catalyst. The low nickel equivalent zone is treated while the high nickel equivalent zone is discarded.

Regeneration method for purifying exhaust gas

An apparatus of purifying an exhaust gas may include a catalytic converter which is disposed on an exhaust pipe and has a lean NOx trap (LNT) device in which a first LNT catalyst is coated and a catalyzed particulate filter (CPF) in which a second LNT catalyst is coated, and a regeneration method of the apparatus of purifying the exhaust gas may include determining whether a nitrogen oxide (NOx) amount absorbed in the LNT device is greater than a threshold NOx amount, determining whether a temperature of the LNT device is higher than a first predetermined temperature when the NOx amount absorbed in the LNT device is greater than the threshold NOx amount, and regenerating, both of the LNT device and the CPF or only the LNT device according to a temperature of the CPF when the temperature of the LNT device is higher than the first predetermined temperature.

СПОСОБ УМЕНЬШЕНИЯ ОБРАЗОВАНИЯ ПОБОЧНЫХ ПРОДУКТОВ ПРИ ПОЛУЧЕНИИ ГАЛОГЕНАЛКАНОВЫХ СОЕДИНЕНИЙ

Изобретение относится к способу получения галогеналкановых соединений, а конкретнее 1,1,1,3,3-пентахлорпропана(HCC-240fa), из тетрахлорида углерода и алкена, в котором образующиеся побочные продукты CClминимизированы в течение фазы запуска реакции. При этом способ включает стадию проведения реакции с железным металлическим катализатором и одним или несколькими фосфорорганическими соединениями в качестве сокатализатора и стадию, на которой FeClвводят в реакцию после проведения фазы запуска процесса и получения количества галогеналканового соединения; причем алкен выбран из группы, состоящей из винилхлорида, этилена и 2-хлорпропена, и галогеналкановые соединения выбраны из группы, состоящей из НСС-240fa, НСС-250 и НСС-360, и в котором FeClвводят в реактор после того, как только содержание галогеналканового соединения в реакторе достигнет по меньшей мере 35 мас.%. Технический результат - уменьшение образования побочных продуктов из винилхлорида (СН=CHCl). 8 з.п. ф-лы, 1 табл., 7 пр.

ЭКСТРАКЦИОННЫЙ СПОСОБ УДАЛЕНИЯ ПРИМЕСЕЙ ИЗ ВОДНОЙ СМЕСИ

Предлагается способ удаления примесей из водной смеси или очищенной водной смеси экстракцией водной смеси или очищенной водной смеси экстракционным растворителем в зоне экстракции с образованием потока экстракта и потока рафината и, необязательно, разделением потока экстракта и обогащенного растворителем потока в зоне разделения с образованием потока органических примесей с высокой точкой кипения и потока извлеченного экстракционного растворителя. Изобретение обеспечивает возможность извлечения металлического катализатора в активной форме, пригодного для повторного использования при рециркулировании на стадию параксилола. 10 н. и 19 з.п. ф-лы, 2 ил., 1 табл.

РЕАКТОР РЕГЕНЕРАЦИИ КАТАЛИЗАТОРОВ

Изобретение относится к области каталитического риформинга, в частности к реактору регенерации катализаторов, установке каталитического риформинга, содержащей такой регенератор, и способу каталитического риформинга. Реактор регенерации катализатора в движущемся слое содержит камеру, вытянутую в вертикальном направлении и разделенную на зоны регенерации, простирающиеся вертикально по высоте камеры, в которых под действием силы тяжести движутся частицы катализатора, при этом каждая зона регенерации по отдельности может регенерировать катализатор разного состава, и каждая зона регенерации содержит последовательно в порядке движения катализаторов: секцию горения, секцию оксихлорирования, находящуюся ниже секции горения и содержащую средства подвода катализатора из секции горения, и секцию обжига, находящуюся ниже секции оксихлорирования. Изобретение обеспечивает повышение эффективности способа риформинга с непрерывной регенерацией катализатора. 3 н. и 12 з.п. ф-лы, 6 ил.

СПОСОБ АДСОРБЦИИ ХЛОРИДА ВОДОРОДА ИЗ ВЫХОДЯЩЕГО ГАЗА РЕГЕНЕРАЦИИ

КОМПОЗИЦИИ КАТАЛИЗАТОРА КАТАЛИТИЧЕСКОГО КРЕКИНГА, ОБЕСПЕЧИВАЮЩИЕ ПОВЫШЕННОЕ ПРЕВРАЩЕНИЕ НЕФТЯНЫХ ОСТАТКОВ

... 1. Катализатор каталитического крекинга, содержащий цеолит, обладающий каталитической активностью при крекинге в условиях каталитического крекинга и имеющий отрицательный заряд поверхности при значении pH около 7, кремнийсодержащий оксид металла, имеющий отрицательный заряд поверхности при значении pH около 7, и осажденный оксид алюминия, где композиция катализатора имеет величину удельной поверхности мезопор более 60 м2/г. ! 2. Катализатор по п.1, где цеолит представляет собой фожазитный цеолит. ! 3. Катализатор по п.1, где кремнийсодержащий оксид металла выбирают из группы, состоящей из осажденного диоксида кремния, геля диоксида кремния, цеолитного диоксида кремния, мезопористого диоксида кремния и их смесей. ! 4. Катализатор по п.3, где кремнийсодержащий оксид металла представляет собой осажденный диоксид кремния или гель диоксида кремния. ! 5. Катализатор по п.1, где удельная поверхность мезопор составляет величину более чем 80 м2/г. ! 6. Катализатор по п.1, где количество цеолита, ...

VERFAHREN UND EINRICHTUNG ZUR RÜCKGEWINNUNG VON BESTANDTEILEN EINES KATALYSATORS

Verfahren zur Herstellung von Aldehyden

Process for recovering the catalyst in an installation for the enrichment of ammonia in deuterium

In a process for the enrichment in deuterium of ammonia by isotopic exchange between hydrogen and liquid ammonia in the presence of an alkali metal amide catalyst enriched ammonia containing enriched catalyst, or an aqueous extract thereof, is electrolysed in a first electrolytic cell with alkali metal amalgam as the cathode so as to transfer the alkali metal of the amide into the amalgam, and the amalgam is then used as the anode in a second electrolytic cell containing as the electrolyte ammonia of lower isotopic concentration than the enriched ammonia, so that the alkali metal passes into the ammonia and in the presence of suitable catalysts, either in the second electrolytic cell or in a separate vessel, forms alkali metal amide, the solution of which in ammonia is then used in the isotopic exchange process. If an aqueous extract of the earthed catalyst is formed, the enriched ammonia containing the enriched amide may be treated with deuterium enriched water to form alkali metal hydroxide ...

Method of removing catalyst

A process for the separation of isotopes of alkali metals and apparatus for carrying out this process

... 888,884. Separating isotopes of alkali metals. COMMISSARIAT A L'ENERGIE ATOMIQUE. Dec. 22, 1958 [Dec. 20, 1957], No. 41380/58. Class 41. Isotopes of alkali metals, especially lithium, are separated by electrolysing alkali metal nitrate which flows counter-current to cation migration, and at a speed intermediate the speeds of the two isotopes to be separated, the metal at the cathode being reconverted to nitrate by admission of nitric acid. A suitable apparatus comprises a block of steatite 1, Fig. 1, having a deep longitudinal channel 2 cut therein ending in a cathode compartment 3 and an anode compartment 4, each communicating with the channel through oblique small passages 5. The whole is mounted in a glass tube furnace 8, provided with a suction duct 11 to remove vapours and gases. The anode 7 is platinum, the cathode 6 comprises a tube 15 carrying a basketcarrying fragments of a refractory steel. In operation, fused lithium nitrate at about 280‹ C. is introduced into the cathode compartment ...

Synthesis of oxygenated organic compounds

Olefinic compounds are contacted in an initial carbonylation reaction zone with carbon monoxide and hydrogen in the presence of a cobalt carbonylation catalyst under conditions of temperature and pressure conducive to production of aldehydes containing one more carbon atom than the olefinic compounds, a portion of the cobalt being converted into cobalt carbonyl and a reaction product comprising aldehydes and cobalt carbonyl being withdrawn and transferred to a catalyst decomposition and removal zone in which the product is continuously passed in contact with an indirectlyheated heat transfer surface so that the cobalt carbonyl is decomposed and a substantial quantity of metallic cobalt is deposited on the heated surface from which it is scraped and recovered. Preferred temperatures for the cobalt removal process are in the range 300-400 DEG F., and pressures in the range 50-150 p.s.i.g. are preferred for primary reaction products having six or more carbon atoms per molecule. Suitable starting ...

INTEGRATED PROCEDURE FOR THE RECOVERY CATALYSTS USED UP BY METALS AND ALUMINA MELT FROM

RECOVERY OF AN ALKYLATING CATALYST

PROCEDURE FOR THE SEPARATION OF METAL-ORGANIC CONNECTIONS AND/OR METALLCARBONYLEN FROM YOUR SOLUTIONS IN ORGANIC MEDIA

Procedure and device for oxidizing catalysts available in a reactor in reduced or partly reduced condition

NITROGEN OXIDE DISTANCE CATALYST

METHOD FOR REGENERATING A HYDROGENATION CATALYST

Process for removing an acid-soluble oil from a sulfone-containing mixture such as recovered from an alkylation catalyst

FLUID CATALYTIC CRACKING

Molybdenum epoxidation catalyst recovery

Electrochemical removal of conjunct polymers from chloroaluminate ionic liquids

A process for regenerating a spent ionic liquid catalyst including (a) applying a voltage across one or more pairs of electrodes immersed in a spent ionic liquid catalyst comprising conjunct polymer-metal halide complexes to provide freed conjunct polymers and a regenerated ionic liquid catalyst; and (b) separating the freed conjunct polymers from the regenerated ionic liquid catalyst is described. An alkylation process incorporating the regeneration process is also described.

Catalyst recovery system, hydrocarbon synthesis reaction apparatus, hydrocarbon synthesis reaction system, and catalyst recovery method

The catalyst recovery system is provided with: a concentrated slurry-generating unit that concentrates slurry that is extracted from the main reactor and continuously generates concentrated slurry; a first discharging unit that discharges the concentrated slurry from the concentrated slurry-generating unit; a solidified slurry-generating unit that cools the concentrated slurry discharged from the concentrated slurry-generating unit and solidifies the liquid medium in the concentrated slurry to generate a solidified slurry; and a recovery mechanism that recovers the solidified slurry from the solidified slurry-generating unit.

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 ...

CATALYTIC CRACKING CATALYST COMPOSITIONS HAVING IMPROVED BOTTOMS CONVERSION

A particulate catalytic cracking catalyst which comprises a zeolite having catalytic cracking ability under catalytic cracking conditions, added silica, precipitated alumina and, optionally clay. The catalytic cracking catalyst has a high matrix surface area and is useful in a catalytic cracking process, in particularly, a fluid catalytic cracking process, to improve bottoms conversion at a constant coke formation.

CATALYST REGENERATION

A method is disclosed for regenerating regenerating a used catalyst mixture comprising (i) an isomerization catalyst comprising magnesium oxide and (ii) a metathesis catalyst comprising an inorganic carrier and at least one of molybdenum oxide and tungsten oxide. The method comprises (a) decoking the used catalyst mixture in the presence of an oxygen-containing gas to produce a decoked catalyst mixture; and (b) contacting the decoked catalyst mixture with steam at a temperature in the range of 100 to 300°C to produce a regenerated catalyst mixture.

METHOD FOR SEPARATING OUT AND RECOVERING DIALKYLTIN DIALKOXIDE

For an alkyltin alkoxide catalyst composition used in carbonate production, there is a problem that the alkyltin alkoxide catalyst composition is thermally decomposed by being heated in the production process, changing into an undistillable alkyltin alkoxide catalyst composition containing a high boiling deactivated component and an active component. The present invention provides a method for separating out and recovering the active component from the alkyltin alkoxide catalyst composition as a useful dialkyltin dialkoxide. According to the present invention, there is disclosed a method in which such an undistillable alkyltin alkoxide catalyst composition containing a high boiling deactivated component and an active component is reacted with an alcohol and / or a carbonate, so as to obtain a reaction liquid containing a product originating from the active component, and then the reaction liquid is subjected to distillation, so as to separate out and recover a dialkyltin dialkoxide from ...

RECOVERY OF PRECIOUS METALS FROM CATALYST RESIDUE

T 1790 RECOVERY OF PRECIOUS METAL FROM CATALYST RESIDUE The invention relates to a process for recovering a precious metal, particularly palladium, from a non-aqueous effluent comprising the metal and dissolved salt and/or polyether contaminants, wherein the effluent is contacted with a reduction agent, the precious metal is deposited onto a carrier, preferably comprising a combustible carbonaceous material, and the metal loaded carrier is separated from the effluent. VM6/T1790FF ...

METHOD FOR FILTERING A THREE-PHASED REACTION MIXTURE

La présente invention concerne un procédé de filtration d'un mélange réactionnel triphasique, comportant une phase liquide, une phase catalytique solide non dissoute et une phase gazeuse. Plus précisément elle consiste à filtrer tangentiellement sur un filtre à membrane au moins une partie d'un mélange réactionnel triphasique comportant une phase liquide dans laquelle s e trouvent des fonctions nitrile, une phase gazeuse comprenant de l'hydrogène et une phase solide catalytique comprenant du nickel et/ou du cobalt de Raney, ou un catalyseur métallique supporté, à recycler le catalyseur tout en récupéra nt au moins une partie du filtrat contenant les produits de la réaction. ...

METHOD FOR RENEWED ACTIVATION OF HONEYCOMB-SHAPED CATALYST ELEMENTS FOR DENITRATING FLUE GASES

The invention relates to a method for renewed activation of honeycomb-shaped catalyst elements for denitrating flue gases from fossil fuel-fired boiler plants, specially coal-fired boiler plants in large power stations. According to the invention, each catalyst element is mechanically cleaned using oil and water-free compressed air before mounting. Subsequently, each element is subjected to wet chemical cleaning using fully desalinated water and dried with oil and water-free compressed air. The inventive method enables the activity of used catalyst elements to be increased from less than 50 % to more 83 % of original activity.

Method for recovering catalyst material, catalyst material recovered by said recovering method, method for recovering substrate, substrate recovered by said recovering method

Production of aromatic carboxylic acids and recovery of Co/Mn catalyst fromash

Method for recovering polyoxoanion compound

A method for recovering a polyoxoanion compound from an aqueous solution containing the polyoxoanion compound which comprises the following steps: Step (1): a step of mixing an organic solvent capable of forming a complex with the above-mentioned polyoxoanion compound with the above-mentioned aqueous solution followed by separating to a first phase containing the above-mentioned polyoxoanion compound and the above-mentioned organic solvent, and a second phase, Step (2): a step of mixing a hydrophobic organic solvent with the above-mentioned first phase followed by separating to an organic phase containing the above-mentioned organic solvent and the above-mentioned hydrophobic organic solvent, and an aqueous phase containing the above-mentioned polyoxoanion compound.

Method for recovering performance of fuel cell

Disclosed is a method for recovering performance of a fuel cell, which can recover the catalytic properties of a cathode in a reusable state by supplying hydrogen to the cathode of a degraded fuel cell stack for a predetermined period of time and storing the fuel cell stack for a predetermined period of time such that an oxide formed on the surface of platinum (Pt) is removed and, at the same time, the platinum is re-precipitated.

Method of recovering pgm

A method of suppressing a distribution of PGM into a Cu2O slag in an oxidation smelting of a method of recovering PGM, is provided, including: carrying out reduction smelting to a treatment target member containing PGM, Cu and/or Cu 2 O, and flux, to thereby generate a molten slag and a Cu alloy containing PGM; and oxidizing and melting the Cu alloy containing the PGM, to thereby generate a Cu 2 O slag containing PGM and the Cu alloy, with more concentrated PGM concentration than the Cu alloy containing the PGM, wherein when carrying out the oxidation smelting, acidic oxide or basic oxide is added.

APPARATUS FOR PURIFYING EXHAUST GAS AND REGENERATION METHOD THEREOF

A regeneration method of an apparatus of purifying an exhaust gas including a catalytic converter which is disposed on an exhaust pipe and includes a lean NOx trap (LNT) device in which a first LNT catalyst is coated and a catalyzed particulate filter (CPF) in which a second LNT catalyst is coated may include determining whether a nitrogen oxide (NOx) amount absorbed in the LNT device is greater than a threshold NOx amount, determining whether a temperature of the LNT device is higher than a first predetermined temperature when the NOx amount absorbed in the LNT device is greater than the threshold NOx amount, and regenerating, both of the LNT device and the CPF or only the LNT device according to a temperature of the CPF when the temperature of the LNT device is higher than the first predetermined temperature. 1. A regeneration method of an apparatus of purifying an exhaust gas including a catalytic converter which is disposed on an exhaust pipe and includes a lean NOx trap (LNT) device in which a first LNT catalyst is coated and a catalyzed particulate filter (CPF) in which a second LNT catalyst is coated , wherein the LNT device and the CPF are sequentially disposed in the catalytic converter , the regeneration method comprising:determining, by a controller, whether a nitrogen oxide (NOx) amount absorbed in the LNT device is greater than a threshold NOx amount;determining, by the controller, whether a temperature of the LNT device is higher than a first predetermined temperature when the NOx amount absorbed in the LNT device is greater than the threshold NOx amount; andregenerating, by the controller, both of the LNT device and the CPF or only the LNT device according to a temperature of the CPF when the temperature of the LNT device is higher than the first predetermined temperature.2. The regeneration method of claim 1 , wherein the regenerating both of the LNT device and the CPF or only the LNT device according to the temperature of the CPF comprises: ...

COATED ARTICLES HAVING HIGH KNOx/KSOx RATIOS FOR SELECTIVE CATALYTIC REDUCTION

Articles comprising a catalyst film comprising VOx, MoOor WO, and TiOdeposited on a substrate are disclosed. The articles are useful for selective catalytic reduction (SCR) of NOx in exhaust gases. Methods for producing such articles deposit a catalyst film on the substrate to form a coated substrate, which is then calcined. When used in an SCR process, the coated articles have enhanced activity for NOx conversion, reduced activity for SOx conversion, or both. Light-weight, coated articles having high catalyst loads can be fabricated at the same or reduced dimensions when compared with laminated articles, and increased kNOx/kSOx ratios are available even from coated articles having relatively thin catalyst films. The articles should have particular value for power plant operations, where coal and high-sulfur fuels are commonly used and controlling sulfur trioxide generation is critical. 1. An article comprising:(a) a substrate; and(b) a film deposited on the substrate;{'sub': 3', '3', '2, 'wherein the film comprises VOx, MoOor WO, and TiO, and the article catalyzes the conversion of nitrogen oxides in a gas containing nitrogen oxides.'}2. The article of claim 1 , wherein the film comprises 0.1 to 5 wt. % of VOx claim 1 , 0.5 to 20 wt. % of MoOor WO claim 1 , and 75 to 99.4 wt. % of TiO.3. The article of claim 1 , wherein the film comprises 0.5 to 2 wt. % of VOx claim 1 , 1 to 10 wt. % of MoOor WO claim 1 , and 88 to 98.5 wt. % of TiO.4. The article of claim 1 , wherein the film has a thickness of from about 20 μm to about 500 μm.5. The article of claim 1 , wherein the film has a thickness of from about 50 μm to about 150 μm.6. The article of claim 1 , wherein the substrates a monolith or a plate.7. The article of claim 1 , the article having less mass and at least one of: (a) enhanced activity for NOx conversion at a temperature between 350° C. and 400° C.; and (b) reduced activity for SOx conversion at a temperature between 380° C. and 430° C. claim 1 , compared ...

FCC UNITS, SEPARATION APPARATUSES, AND METHODS FOR SEPARATING REGENERATED CATALYST

Apparatuses and methods for separating regenerated catalyst are provided. In one embodiment, an apparatus for separating regenerated catalyst includes a regeneration vessel including a catalyst bed section. The apparatus includes a catalyst settler physically separated from the catalyst bed section by a wall extending within the regeneration vessel. The catalyst overflowing the catalyst bed section flows over the wall and enters the catalyst settler. The apparatus further includes a pipe in fluid communication with the catalyst settler and configured to deliver regenerated catalyst from the regeneration vessel to another vessel. 1. An apparatus for separating regenerated catalyst , the apparatus comprising:a regeneration vessel comprising a catalyst bed section;a catalyst settler physically separated from the catalyst bed section by a wall extending within the regeneration vessel, wherein the catalyst overflowing the catalyst bed section flows over the wall and enters the catalyst settler; anda pipe in fluid communication with the catalyst settler and configured to deliver regenerated catalyst from the regeneration vessel to another vessel.2. The apparatus of wherein the catalyst settler is located in the regeneration vessel.3. The apparatus of wherein the catalyst settler is bounded by the regeneration vessel.4. The apparatus of further comprising a catalyst settler baffle within the catalyst settler.5. The apparatus of further comprising packing within the catalyst settler.6. The apparatus of further comprising an injection port in the catalyst settler configured to inject a gas into the catalyst settler and into contact with the regenerated catalyst to separate entrained gas therefrom.7. The apparatus of further comprising a nitrogen or steam source in fluid communication with the injection port claim 6 , wherein the injection port is configured to inject nitrogen or steam into the catalyst settler and into contact with the regenerated catalyst to separate ...

Processes for Reducing the Loss of Catalyst Activity of a Ziegler-Natta Catalyst

A process for reducing the loss of catalyst activity of a Ziegler-Natta catalyst is provided. The process includes preparing a Ziegler-Natta (ZN) catalyst by contacting the ZN catalyst with at least one aluminum alkyl compound to produce a reduced ZN catalyst and storing and/or transporting the reduced ZN catalyst for at least 20 days at a temperature of 25° C. or less. The reduced ZN catalyst may be used for polymerizing polyolefin polymers. 1. A process for reducing the loss of catalyst activity of a Ziegler-Natta catalyst , the process comprising:a) preparing a Ziegler-Natta (ZN) catalyst by contacting the ZN catalyst with at least one aluminum alkyl compound to produce a reduced ZN catalyst;b) optionally, drying the reduced ZN catalyst; andc) storing and/or transporting the reduced ZN catalyst for at least 20 days at a temperature of 25° C. or less.2. (canceled)3. The process of claim 1 , wherein the reduced ZN catalyst has substantially the same catalyst activity during the storing and/or transporting.4. The process of claim 1 , wherein the reduced ZN catalyst comprises a T0 catalyst activity at the beginning of the storing and/or transporting and a T1 catalyst activity at the end of the storing and/or transporting claim 1 , and wherein the T1 catalyst activity is within 65% of the T0 catalyst activity.5. The process of claim 1 , wherein the reduced ZN catalyst comprises a T0 catalyst activity at the beginning of the storing and/or transporting and a T1 catalyst activity at the end of the storing and/or transporting claim 1 , and wherein the T1 catalyst activity is within 75% of the T0 catalyst activity.6. The process of claim 1 , wherein the reduced ZN catalyst comprises a T0 catalyst activity at the beginning of the storing and/or transporting and a T1 catalyst activity at the end of the storing and/or transporting claim 1 , and wherein the T1 catalyst activity is within 80% of the T0 catalyst activity.7. The process of claim 1 , wherein the storing and/or ...

METHOD FOR REGENERATING DENITRIFICATION CATALYST

A method for regenerating an NOx removal catalyst, which includes connecting an upstream fixing member () to one end of a member to be ground, and connecting a downstream fixing member () to the other end; connecting a mixing part () for mixing an abrasive with a gas to an upstream portion of the upstream fixing member, and disposing a screen member in the expanded part, and connecting a classification part () and a dust-collecting part () to the downstream fixing member; and transferring the abrasive which has been mixed with the gas from the mixing part to the upstream fixing member, reducing the flow rate of the mixture in the expanded part, subsequently, causing the mixture to pass through the through-hole of the NOx removal catalyst and the downstream fixing member, and then collecting dust by means of the dust-collecting part via the classification part. 14-. (canceled)5. A method for regenerating an NOx removal catalyst , characterized in that the method comprises:connecting an upstream fixing member to one end of a member to be ground which is formed of an NOx removal catalyst, the upstream fixing member including an expanded part which has a cross-sectional area larger than that of the member to be ground, andconnecting a downstream fixing member to the other end of the member to be ground, the downstream fixing member including a flow path which has a fixed cross-sectional area over a predetermined length from the fixing end of the member to be ground;connecting a mixing part for mixing an abrasive with a gas to an upstream portion of the upstream fixing member, by the mediation of an upstream connecting member including a flow path which has a cross-sectional area smaller than that of the expanded part, and disposing a screen member having a predetermined sieve opening in the expanded part on the member-to-be-ground side, andconnecting a classification part and a dust-collecting part to the downstream fixing member, by the mediation of a downstream ...

Processes for controlling the partial regeneration of spent catalyst from an mto reaction

A method of controlling the regeneration of spent catalyst from an oxygenate-to-olefin reaction zone in order to provide a partially regenerated catalyst. The partially regenerated catalyst has between 1 to 4, or 1 to 3, or, 2 to 3 wt % coke. The regeneration is controlled by adjusting a ratio of air to recycled flue gas in the combustion gas passed to the regeneration zone. CO in the flue gas is removed in a CO oxidation zone which receives oxygen to oxidize CO to CO 2 .

PHOTOCATALYTIC FILTER, METHOD FOR MANUFACTURING THE SAME, AND METHOD FOR REACTIVATING THE SAME

The devices, systems and techniques disclosed in this patent document include photocatalytic filter devices and can be used to provide a method for manufacturing a photocatalytic filter with improved adhesion. In addition, the present disclosure of this patent document includes technology to provide a method for reactivating a photocatalytic filter. Using the disclosed techniques, even if a photocatalytic filter is contaminated, the contaminated photocatalytic filter is easily reactivated while maintaining improved adhesion. 1. A method of manufacturing a photocatalytic filter , the method including:dispersing a photocatalytic material;coating a support with the dispersed photocatalytic material; anddrying the coated support; andsintering the dried support.2. The method of claim 1 , wherein the photocatalytic material includes titanium dioxide (TiO).3. The method of claim 1 , wherein the support includes porous ceramic.4. The method of claim 1 , wherein the sintering is performed for from one to three hours at a temperature between 400° C. and 500° C.5. A photocatalytic filter claim 1 , including:a porous ceramic support; and{'sub': '2', 'dispersed TiOnanoparticles coated on the porous ceramic support.'}6. The photocatalytic filter of claim 5 , wherein the TiOnanoparticles coated on the porous ceramic support are those sintered for from one to three hours at a temperature between 400° C. and 500° C.7. The filter of claim 5 ,wherein the photocatalytic filter comprises a plurality of adjacent parallel cells that form an air flow path in a direction facing UV LED for photocatalytic activation.8. The filter of claim 7 , wherein the photocatalytic filter has a height of 2 to 15 mm.9. The filter of claim 7 ,wherein a frame between the cells has a thickness of 0.3 to 1.2 mm.10. The filter of claim 7 ,wherein each of the cells has a width of 1 to 4 mm.11. The filter of claim 7 ,{'sup': '2', 'wherein the cells has a density of 30 to 260 cells/inch.'}12. A method of ...

Chromium-Based Catalysts and Processes for Converting Alkanes into Higher and Lower Aliphatic Hydrocarbons

Processes for cracking an alkane reactant to form a lower aliphatic hydrocarbon product and for converting an alkane reactant into a higher aliphatic hydrocarbon product are disclosed, and these processes include a step of contacting the alkane reactant with a supported chromium (II) catalyst. In addition to the formation of various aliphatic hydrocarbons, such as linear alkanes, branched alkanes, 1-alkenes, and internal alkenes, aromatic hydrocarbons and hydrogen also can be produced.

PROCESS AND APPARATUS FOR ENHANCED REMOVAL OF CONTAMINANTS IN A FLUID CATALYTIC CRACKING PROCESSES

Systems for separating a contaminant trapping additive from a cracking catalyst may include a contaminant removal vessel having one or more fluid connections for receiving contaminated cracking catalyst, contaminated contaminant trapping additive, fresh contaminant trapping additive, and a fluidizing gas. In the contaminant removal vessel, the spent catalyst may be contacted with contaminant trapping additive, which may have an average particle size and/or density greater than the cracking catalyst. A separator may be provided for separating an overhead stream from the contaminant removal vessel into a first stream comprising cracking catalyst and lifting gas and a second stream comprising contaminant trapping additive. A recycle line may be used for transferring contaminant trapping additive recovered in the second separator to the contaminant removal vessel, allowing contaminant trapping additive to accumulate in the contaminant removal vessel. A bottoms product line may provide for recovering contaminant trapping additive from the contaminant removal vessel. 1. A system for cracking hydrocarbons , comprising:a first reactor for contacting a cracking catalyst with a hydrocarbon feedstock to convert at least a portion of the hydrocarbon feedstock to lighter hydrocarbons;a separator for separating the lighter hydrocarbons from spent cracking catalyst;a feed line for feeding separated spent cracking catalyst from the separator to a catalyst regenerator;a catalyst transfer line for transferring a portion of the spent cracking catalyst from the catalyst regenerator to a contaminant removal vessel;the contaminant removal vessel, for contacting the spent catalyst with a contaminant trapping additive having an average particle size and/or density greater than those of the cracking catalyst;a second separator for separating an overhead stream from the contaminant removal vessel into a first stream comprising cracking catalyst and lifting gas and a second stream comprising ...

ENGINE OIL COMPOSITION

An engine oil including a base oil in a range of about 70 to 85 wt %. The engine oil includes at least one additive in a range of about 15 to 30 wt %, such as, an antioxidant, a cleaning agent/detergent, a dispersing agent, a wear resistant agent, a viscosity index improving agent, a pour point depressant, a rust/corrosion inhibiting agent, a foam inhibiting agent, and an extreme pressure agent. The engine oil further includes an additive including an organometallic compound of a catalyst consisting of a catalytic element in a range of about 0.001 to 0.05 wt %. 1. An engine oil comprising:a base oil in a range of about 70 to 85 wt %; an antioxidant,', 'a cleaning agent/detergent,', 'a dispersing agent,', 'a wear resistant agent,', 'a viscosity index improving agent,', 'a pour point depressant,', 'a rust/corrosion inhibiting agent,', 'a foam inhibiting agent,', 'an extreme pressure agent, and', 'an organometallic compound of a catalyst consisting of a catalytic element in a range of about 0.001 to 0.05 wt %., 'at least one additive in a range of about 15 to 30 wt %, the additives selected from a group consisting of'}2. The engine oil of claim 1 , wherein the catalytic element is selected from a group consisting of Pd claim 1 , Co claim 1 , Ce claim 1 , Pt claim 1 , V claim 1 , Fe claim 1 , and Cu.3. The engine oil of claim 1 , wherein the catalytic element is selected from a group consisting of 4th period elements claim 1 , lanthanides claim 1 , and 4th group transition metal elements.4. The engine oil of claim 1 , wherein the organometallic compound of the catalyst is selected from a group consisting of organic acid salts claim 1 , amine salts claim 1 , oxygenates claim 1 , phenates and sulfonates of Pd claim 1 , Co claim 1 , Ce claim 1 , Pt claim 1 , V claim 1 , Fe claim 1 , and Cu.5. The engine oil of claim 1 , wherein the organometallic compound of the catalyst is selected from a group consisting of dithiophosphate of Pd claim 1 , Co claim 1 , Ce claim 1 , Pt ...

CATALYSTS AND METHODS FOR MAKING CYCLIC CARBONATES

Catalysts and methods for making cyclic carbonates are disclosed. The catalyst may include at least one polymer quaternary ammonium salt, at least one metal halide and silica gel. The method of making the cyclic carbonates may include forming a mixture that includes the catalyst and an epoxide, and contacting the mixture with carbon dioxide in a reactor under conditions to form the propylene carbonate. 1. A catalyst comprising:at least one polymer quaternary ammonium salt;at least one metal halide; andsilica gel.2. The catalyst of claim 1 , wherein:{'sub': 2', '2', '3', '3', '2', '2, 'the at least one polymer quaternary ammonium salt is polydimethyl diallyl ammonium bromide, polydimethyl diallyl ammonium chloride or combination thereof; or the at least one metal halide is ZnBr, ZnCl, FeCl, AlCl, NaCl, CaCl, Zn(OAc), LiBr or a combination thereof.'}3. (canceled)4. (canceled)5. The catalyst of claim 1 , wherein:a mass ratio of the metal halide to a total mass comprising the polymer quaternary ammonium salt, the metal halide, and the silica gel, is about 1:200 to about 1:100;a molar ratio of the polymer quarternary ammonium salt to the metal halide is about 2:1; ora mass ratio of the polymer quarternary ammonium salt to the silica gel is about 1:20 to about 1:5.6. (canceled)7. (canceled)8. A method of making a catalyst claim 1 , the method comprising:incubating a first mixture comprising at least one polymer quaternary ammonium salt, at least one metal halide and a solvent;adding silica gel to the first mixture to form a second mixture;incubating the second mixture; andremoving the solvent from the second mixture to obtain the catalyst.9. (canceled)10. The method of claim 8 , further comprising grinding the catalyst to obtain a powdered form of the catalyst.11. (canceled)12. (canceled)13. (canceled)14. The method of claim 8 , further comprising mixing an organic solvent with water to form the solvent before incubating the first mixture.15. (canceled)16. (canceled)17. ( ...

System and method for recovering performance of fuel cell

A method for recovering performance of a degraded polymer electrolyte fuel cell stack through electrode reversal. In detail, oxide films formed on the surface of platinum of a cathode is removed through an electrode reversal process that creates a potential difference between an anode and the cathode by supplying air to the anode instead of hydrogen and supplying a fuel to the cathode instead of air, thus rapidly recovering the performance of a degraded polymer electrolyte fuel cell stack.

APPARATUS FOR PURIFYING EXHAUST GAS

A regeneration method of an apparatus of purifying an exhaust gas including a catalytic converter which is disposed on an exhaust pipe and includes a lean NOx trap (LNT) device in which a first LNT catalyst is coated and a catalyzed particulate filter (CPF) in which a second LNT catalyst is coated may include determining whether a nitrogen oxide (NOx) amount absorbed in the LNT device is greater than a threshold NOx amount, determining whether a temperature of the LNT device is higher than a first predetermined temperature when the NOx amount absorbed in the LNT device is greater than the threshold NOx amount, and regenerating, both of the LNT device and the CPF or only the LNT device according to a temperature of the CPF when the temperature of the LNT device is higher than the first predetermined temperature. 17-. (canceled)8. An apparatus for purifying an exhaust gas , comprising:a catalytic converter disposed on an exhaust pipe and including a lean NOx trap (LNT) device in which a first LNT catalyst is coated and a catalyzed particulate filter (CPF) in which a second LNT catalyst is coated, the LNT device and the CPF being sequentially disposed in the catalytic converter; anda controller determining or detecting an inlet lambda of the LNT device, an outlet lambda of the LNT device, and an outlet lambda of the CPF, determining or detecting a temperature of the LNT device and a temperature of the CPF, determining nitrogen oxide (NOx) amounts absorbed in the LNT device and the CPF, and controlling regeneration of the LNT device and the CPF,wherein the controller performs the regeneration of the LNT device and the CPF according to the temperature of the LNT device and the temperature of the CPF when the NOx amount absorbed in the LNT device is greater than a threshold NOx amount, andthe controller performs regeneration of both of the LNT device and the CPF when the temperature of the LNT device is higher than a first predetermined temperature and the temperature of ...

Process for stripping and a fluid catalytic cracking apparatus relating thereto

One exemplary embodiment can be a process for stripping. The process can include passing catalyst to a stripping vessel containing a riser, providing a plurality of baffles having a first baffle and a second baffle, and providing one or more packing layers. The stripping vessel and riser may define an annular zone including annular area for stripping of the catalyst, and the first and second baffles collectively overlap in no more than about 50% of the annular area. Often, the first baffle is coupled to an outer circumference of the riser and extends outward, and the second baffle is coupled to an inner circumference of the stripping vessel and extends inward. Typically, the one or more packing layers are within the annular zone.

Process for adsorbing hydrogen chloride from a regeneration vent gas

A process for adsorbing hydrogen chloride (HCl) from a regeneration vent gas. The regeneration vent gas from a regeneration zone is cooled, and the cooled regeneration vent gas is passed to an adsorption zone that is spaced apart from the regeneration zone. HCl from the regeneration vent gas is adsorbed onto a spent catalyst in the adsorption zone to enrich the spent catalyst with HCl to provide HCl-rich spent catalyst and deplete HCl from the regeneration vent gas to provide HCl-lean regeneration vent gas. The HCl-lean regeneration vent gas is purged as an effluent gas. The HCl-rich spent catalyst is passed to the regeneration zone.

ENGINE EMISSION ABSORBER ASSEMBLY AND METHOD FOR OPERATING SAME

An absorber assembly for an engine system and a method for operating the same is provided. The absorber assembly also includes a first section and a second section formed between the outer wall and the inner wall respectively. The absorber assembly further includes a pair of separator members extending within the main body unit. An inlet channel houses a first filter element therein. An outlet channel houses a second filter element therein. The absorber assembly further includes an internal flow path at a bottom portion of the main body unit. A triggering module is associated with the absorber assembly and is configured to trigger a regeneration thereof. 1. An absorber assembly for an engine system , the absorber assembly comprising:a main body unit having a generally cylindrical configuration, the main body unit including an outer wall and an inner wall, the inner wall defining a central cavity within the main body unit;a first section and a second section formed between the outer wall and the inner wall respectively;a pair of separator members extending within the main body unit, the pair of separator members configured to separate the first and second sections from each other;an inlet channel defined by the first section, the inlet channel configured to house a first filter element therein;an outlet channel defined by the second section, the outlet channel configured to house a second filter element therein; andan internal flow path at a bottom portion of the main body unit, the internal flow path provided between the first section and the second section, the internal flow path configured to provide fluid communication between the first section and the second section.2. The absorber assembly of claim 1 , wherein the absorber assembly is provided within a diesel particulate filter unit.3. The absorber assembly of claim 1 , wherein the absorber assembly is provided within a conduit associated with a diesel particulate filter unit.4. The absorber assembly of claim 1 ...

PHOTOCATALYTIC FILTER, METHOD FOR MANUFACTURING THE SAME, AND METHOD FOR REACTIVATING THE SAME

The devices, systems and techniques disclosed in this patent document include photocatalytic filter devices and can be used to provide a method for manufacturing a photocatalytic filter with improved adhesion. In addition, the present disclosure of this patent document includes technology to provide a method for reactivating a photocatalytic filter. Using the disclosed techniques, even if a photocatalytic filter is contaminated, the contaminated photocatalytic filter is easily reactivated while maintaining improved adhesion. 1. A method of reactivating a photocatalytic filter , the method including;treating a photocatalytic filter with boiling water or microwaving the photocatalytic filter and a support coated with a photocatalytic material,wherein the photocatalytic filter is manufactured by steps including;dispersing the photocatalytic material;coating the support with the photocatalytic material after the dispersing;drying the support after the coating; andsintering the support after the drying to provide a catalyst portion of the photocatalytic filter,wherein the photocatalytic filter includes cells formed in the catalyst portion and provides an air flow path in a direction facing an Ultraviolet Light Emission Diode (UV LED) for photocatalytic activation,{'sup': '2', 'wherein a density of the cells is between 30 to 260 cell/inch.'}2. The method of claim 1 , wherein the photocatalytic material includes titanium dioxide (TiO).3. The method of claim 1 , wherein the support includes porous ceramic.4. The method of claim 1 , wherein the sintering is performed for from one to three hours at a temperature between 400° C. and 500° C.5. The method of claim 1 , further comprisingadding distilled water to the photocatalytic filter.6. The method of claim 1 , further comprising: covering a side of the support; andsonicating the photocatalytic filter.7. The method of claim 6 , wherein the photocatalytic material maintains an adhesion to the support while the photocatalytic ...

Impedance-based sensor for detection of catalyst coking in fuel reforming systems

The present invention relates to a novel sensor for detecting the early stages of catalyst coking in fuel reforming systems and methods for making and using the same. The sensor may be manufactured by inkjet printing a colloidal suspension of ceramic powders to create thin (about 20 μm) catalytic and conductive elements of the sensor. The sensor may be used to determine the presence of coking conditions during processes at a level below the detection limit available using thermogravimetric analyzers (TGA) (<10 μg), thereby reducing catalyst coking in systems.

METHOD FOR REGENERATING SCR DENITRATION CATALYST ASSISTED BY MICROWAVES AND DEVICE THEREFOR

Disclosed is a method for regenerating a SCR denitration catalyst assisted by microwaves. The method comprises: (1) a poisoned SCR denitration catalyst is immersed in deionized water, and the SCR denitration catalyst is cleaned by a bubbling method; (2) the SCR denitration catalyst is transferred to a container containing a pore-expanding solution for a soaking treatment; (3) the SCR denitration catalyst is transferred to a microwave device and treated for 1-10 minutes; (4) the SCR denitration catalyst is transferred to a container with an activating liquid and impregnated for 1-4 hours; (5) the SCR denitration catalyst is dried with microwaves for 1-20 minutes; and (6) the SCR denitration catalyst is calcined under conditions of 500-600° C. for 4-7 hours. The present invention has readily available raw materials, is simple and energy-saving in device and process, and is suitable for industrial scale regeneration. The catalyst treated by the method of the present invention has the advantages of loose pore channels, obviously optimized pore structures, significantly improved catalyst surface conditions, high activity, and good economic benefits. 1. A method for regenerating a selective catalytic reduction (SCR) denitration catalyst assisted by microwaves , comprising:(1) immersing a poisoned SCR denitration catalyst in deionized water, and cleaning the SCR denitration catalyst by a bubbling method for 10-30 minutes;(2) transferring the SCR denitration catalyst from step (1) to a container containing a pore-expanding solution and conducting a soaking treatment for 10-30 minutes;(3) transferring the SCR denitration catalyst from step (2) to a microwave device and treating the SCR denitration catalyst by microwave for 1-10 minutes;(4) transferring the SCR denitration catalyst from step (3) to a container with an activating liquid and impregnating the SCR denitration catalyst for 1-4 hours;(5) transferring the SCR denitration catalyst from step (4) to a microwave device ...

MATERIAL FOR REMOVING CONTAMINANTS FROM WATER

A composite comprises a carbonaceous and a metallic nanotube conjugated with a carbonaceous support. The composite may be used to remove contaminants from water.

METHOD FOR CONTROLLING REGENERATION OF CATALYST

A method for controlling regeneration a catalyst by an exhaust gas purification device includes: measuring a temperature of exhaust gas flowing into a first catalyst unit; estimating a NOamount loaded into the first catalyst unit and a slip amount of NOof the first catalyst unit by using the temperature and an amount of the exhaust gas of the first catalyst unit; calculating a temperature of a second catalyst unit by using the temperature of the first catalyst unit; and estimating a NOamount flowing into the second catalyst unit by using at least one of the slip amount of NOof the first catalyst unit and the temperature of the second catalyst unit. 1. A method for controlling regeneration of a catalyst by an exhaust gas purification device , the method comprising:measuring a temperature of an exhaust gas flowing into a first catalyst unit;{'sub': x', 'x, 'estimating a NOamount loaded into the first catalyst unit and a slip amount of NOof the first catalyst unit by using the temperature and an amount of the exhaust gas of the first catalyst unit;'}calculating a temperature of a second catalyst unit by using the temperature of the first catalyst unit; and{'sub': x', 'x, 'estimating a NOamount flowing into the second catalyst unit by using at least one of the slip amount of NOof the first catalyst unit and the temperature of the second catalyst unit.'}2. The method of claim 1 , further comprising: determining regeneration of the first catalyst unit or the second catalyst unit by using at least one of selected from the group consisting of the NOamount loaded into the first catalyst unit claim 1 , the temperature of the first catalyst unit claim 1 , and the temperature of the second catalyst unit.3. The method of claim 2 , wherein the step of determining regeneration includes comparing an amount of nitrogen oxide flowing into the first catalyst unit with a first threshold value.4. The method of claim 3 , wherein the step of determining regeneration further includes: ...

METHOD AND SYSTEM FOR ADAPTING A CLEAN FILTER CORRECTION MAP FOR A SELECTIVE CATALYST REDUCTION FILTER

A system and method for adapting the clean filter correction map for a selective catalyst reduction filter SCRF of an exhaust gas aftertreatment system are provided. The system may be in fluid communication with an engine of a vehicle. The system may include a first pressure sensor and a second pressure. A differential pressure module is in communication with the first pressure sensor and the second pressure sensor and configured to generate a delta pressure signal corresponding to a pressure drop between the first pressure sensor and the second pressure sensor. The system may also include a controller configured to determine a number of completed regeneration events of the SCRF; compare the number of completed regeneration events to an evaluation element; and enable an adaptation module by executing one of a first control action, a second control action, and a third control action. 1. A method of adapting the clean filter correction map for a selective catalyst reduction filter , the method comprising:determining, via a controller, a number of completed regeneration events of the selective catalytic reduction filter;comparing, with the controller, the number of completed regeneration events to an evaluation element, wherein the evaluation element is a predetermined discrete number of regeneration events;enabling an adaptation module written on a tangible, non-transitory memory device of the controller by executing one of a first control action when the number of completed regeneration events is less than the evaluation element, a second control action when the number of completed regeneration events is equal to the evaluation element, and a third control action when the number of completed regeneration events is greater than the evaluation element.2. The method of wherein the first control action includes:continuously comparing, via the controller, the number of completed regeneration events with the evaluation element until the number of completed regeneration ...

CATALYST PREPARED BY REACTIVE MILLING

A process for preparing a catalyst, including the reactive milling of a first reagent, which is a chromium oxide compound, with a second reagent, which is a compound of the formula MM′OF, M and M′ each being an element having an oxidation state greater than or equal to 0, z being from 0 to 1, x being from 0 to 3, y being from 0 to 6, and 2x+y being greater than 0 and less than or equal to 6. 1. A process for preparing a catalyst , comprising the reactive milling of a first reagent , which is a chromium oxide compound , with a second reagent , which is a compound of formula MM′OF , M and M′ each being an element having an oxidation state greater than or equal to 0 , z being from 0 to 1 , x being from 0 to 3 , y being from 0 to 6 , and 2x+y being greater than 0 and less than or equal to 6.2. The process as claimed in claim 1 , wherein the catalyst comprises chromium having an oxidation state of between 3 and 5.3. The process as claimed in claim 1 , wherein the first reagent is chosen from CrO claim 1 , CrO claim 1 , CrOand combinations thereof.4. The process as claimed in claim 1 , comprising claim 1 , at the end of the reactive milling step claim 1 , a step of fluorination by bringing into contact with a fluorinating agent.5. The process as claimed in claim 1 , wherein the elements M and M′ are chosen from chromium claim 1 , nickel claim 1 , magnesium claim 1 , cobalt claim 1 , zinc claim 1 , aluminum claim 1 , antimony claim 1 , barium claim 1 , bismuth claim 1 , cadmium claim 1 , calcium claim 1 , cerium claim 1 , copper claim 1 , tin claim 1 , europium claim 1 , iron claim 1 , gallium claim 1 , germanium claim 1 , indium claim 1 , lanthanum claim 1 , manganese claim 1 , molybdenum claim 1 , nickel claim 1 , niobium claim 1 , phosphorus claim 1 , lead claim 1 , praseodymium claim 1 , scandium claim 1 , strontium claim 1 , tantalum claim 1 , terbium claim 1 , thorium claim 1 , titanium claim 1 , tungsten claim 1 , vanadium claim 1 , yttrium and zirconium.6. The ...

COATED ARTICLES HAVING HIGH KNOx/KSOx RATIOS FOR SELECTIVE CATALYTIC REDUCTION

Articles comprising a catalyst film comprising VOx, MoOor WO, and TiOdeposited on a substrate are disclosed. The articles are useful for selective catalytic reduction (SCR) of NOx in exhaust gases. Methods for producing such articles deposit a catalyst film on the substrate to form a coated substrate, which is then calcined. When used in an SCR process, the coated articles have enhanced activity for NOx conversion, reduced activity for SOx conversion, or both. Light-weight, coated articles having high catalyst loads can be fabricated at the same or reduced dimensions when compared with laminated articles, and increased kNOx/kSOx ratios are available even from coated articles having relatively thin catalyst films. The articles should have particular value for power plant operations, where coal and high-sulfur fuels are commonly used and controlling sulfur trioxide generation is critical. 1. An article comprising:(a) a substrate; and(b) a film deposited on the substrate;{'sub': 3', '3', '2, 'wherein the film comprises VOx, MoOor WO, and TiO, and the article catalyzes the conversion of nitrogen oxides in a gas containing nitrogen oxides.'}2. The article of claim 1 , wherein the film comprises 0.1 to 5 wt. % of VOx claim 1 , 0.5 to 20 wt. % of MoOor WO claim 1 , and 75 to 99.4 wt. % of TiO.3. The article of claim 1 , wherein the film comprises 0.5 to 2 wt. % of VOx claim 1 , 1 to 10 wt. % of MoOor WO claim 1 , and 88 to 98.5 wt. % of TiO.4. The article of claim 1 , wherein the film has a thickness of from about 20 μm to about 500 μm.5. The article of claim 1 , wherein the film has a thickness of from about 50 μm to about 150 μm.6. The article of claim 1 , wherein the substrate is a monolith or a plate.79-. (canceled)10. The article of claim 1 , the article having less mass and at least one of: (a) enhanced activity for NOx conversion at a temperature between 350° C. and 400° C.; and (b) reduced activity for SOx conversion at a temperature between 380° C. and 430° C. ...

BACTERIAL CULTURES OF ACIDITHIOBACILLUS THIOOXIDANS AND THEIR USE IN THE TREATMENT OF MATERIALS CONTAINING SULFUR-COMPOUNDS

Bacterial cultures of are isolated, maintained and identified and used in the treatment of materials containing sulfur-compounds, such as contaminated and/or spent catalysts with elemental sulfur (S). Bacterial cultures of exhibit sulfur-oxidizing activity particularly useful in the transformation of elemental sulfur (S) to sulfates (SO), a compound soluble in water (HO) and usable in industry. The bacterial cultures of are mainly used as a biological or biotechnological procedure for the treatment of contaminated and/or spent catalysts with elemental sulfur (S) hazardous contaminated wastes that are mainly, but not exclusively, from the Claus process that operates at environmental conditions; does not impact the environment or ecosystem; and recovers 91-100% of the elemental sulfur (S) in sulfate form (SO). 1Acidithiobacillus thiooxidans. A bacterial strain AZCT-M125-5 , with registration number DSM 26636 registered on Nov. 12 , 2012 to the international authority of microbial deposit Leibniz Institute-German Collection of Microorganisms and Cell Cultures.2Acidithiobacillus thiooxidans. A bacterial strain AZCT-M125-6 , with registration number DSM 26637 registered on Nov. 12 , 2012 to the international authority of microbial deposit Leibniz Institute-German Collection of Microorganisms and Cell Cultures.3Acidithiobacillus thiooxidans. The method for isolation , maintenance and identification of bacterial strains of and , which involves their:a) Isolation from their natural environment, in a liquid culture media that involves a sulfur source;b) Maintenance in a modified Starkey medium, added with 5 to 15 g/l of elemental sulfur [S], at pH from 2 to 4, preferably 10 g/l of elemental sulfur [S], to a pH from 2.5-3; andc) Molecular identification preferably by a phylogenetic tree build using the method known as Unweighted Pair Group Method Arithmetic mean (UPGMA).4Acidithiobacillus thiooxidans. The method of isolation claim 3 , maintenance and identification of ...

PROCESS AND APPARATUS FOR ENHANCED REMOVAL OF CONTAMINANTS IN FLUID CATALYTIC CRACKING PROCESSES

Systems for separating a contaminant trapping additive from a cracking catalyst may include a contaminant removal vessel having one or more fluid connections for receiving contaminated cracking catalyst, contaminated contaminant trapping additive, fresh contaminant trapping additive, and a fluidizing gas. In the contaminant removal vessel, the spent catalyst may be contacted with contaminant trapping additive, which may have an average particle size and/or density greater than the cracking catalyst. A separator may be provided for separating an overhead stream from the contaminant removal vessel into a first stream comprising cracking catalyst and lifting gas and a second stream comprising contaminant trapping additive. A recycle line may be used for transferring contaminant trapping additive recovered in the second separator to the contaminant removal vessel, allowing contaminant trapping additive to accumulate in the contaminant removal vessel. A bottoms product line may provide for recovering contaminant trapping additive from the contaminant removal vessel. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. A process for removing contaminants from a catalyst , comprising:feeding a catalyst comprising contaminants to a contaminant removal vessel;feeding a contaminant trapping additive to the contaminant removal vessel, wherein the contaminant trapping additive has an average particle size greater than an average particle size of the catalyst and/or a density greater than the catalyst;fluidizing the catalyst and the contaminant trapping additive with a lifting gas, contacting the catalyst with the contaminant trapping additive, and transferring contaminants from the catalyst to the contaminant trapping additive;withdrawing from the contaminant removal vessel a first stream comprising lifting gas, contaminant trapping additive, and catalyst having a reduced amount of contaminants;separating the contaminant trapping additive from the ...

Processes for reducing the loss of catalyst activity of a ziegler-natta catalyst

A process for reducing the loss of catalyst activity of a Ziegler-Natta catalyst is provided. The process includes preparing a Ziegler-Natta (ZN) catalyst by contacting the ZN catalyst with at least one aluminum alkyl compound to produce a reduced ZN catalyst and storing and/or transporting the reduced ZN catalyst for at least 20 days at a temperature of 25°C or less. The reduced ZN catalyst may be used for polymerizing polyolefin polymers.

Processes for reducing the loss of catalyst activity of a Ziegler-Natta catalyst

A process for reducing the loss of catalyst activity of a Ziegler-Natta catalyst is provided. The process includes preparing a Ziegler-Natta (ZN) catalyst by contacting the ZN catalyst with at least one aluminum alkyl compound to produce a reduced ZN catalyst and storing and/or transporting the reduced ZN catalyst for at least 20 days at a temperature of 25° C. or less. The reduced ZN catalyst may be used for polymerizing polyolefin polymers.

Chromium-based catalysts and processes for converting alkanes into higher and lower aliphatic hydrocarbons

Processes for cracking an alkane reactant to form a lower aliphatic hydrocarbon product and for converting an alkane reactant into a higher aliphatic hydrocarbon product are disclosed, and these processes include a step of contacting the alkane reactant with a supported chromium (II) catalyst. In addition to the formation of various aliphatic hydrocarbons, such as linear alkanes, branched alkanes, 1-alkenes, and internal alkenes, aromatic hydrocarbons and hydrogen also can be produced.

METHOD FOR REGENERATING A HYDRAULIC CATALYST

Hydroprocessing method and system for upgrading heavy oil using a colloidal or molecular catalyst

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

Methods and mixing systems for introducing catalyst precursor into heavy oil feedstock

Methods and systems for mixing a catalyst precursor with a heavy oil feedstock preparatory to hydroprocessing the heavy oil feedstock in a reactor to form an upgraded feedstock. Achieving very good dispersion of the catalyst precursor facilitates and maximizes the advantages of the colloidal or molecular hydroprocessing catalyst. A catalyst precursor and a heavy oil feedstock having a viscosity greater than the viscosity of the catalyst precursor are provided. The catalyst precursor is pre-mixed with a hydrocarbon oil diluent, forming a diluted catalyst precursor. The diluted precursor is then mixed with at least a portion of the heavy oil feedstock so as to form a catalyst precursor-heavy oil feedstock mixture. Finally, the catalyst precursor-heavy oil feedstock mixture is mixed with any remainder of the heavy oil feedstock, resulting in the catalyst precursor being homogeneously dispersed on a colloidal and/or molecular level within the heavy oil feedstock.

Mixing systems for introducing a catalyst precursor into a heavy oil feedstock

Systems for mixing a catalyst precursor with a heavy oil feedstock preparatory to hydroprocessing the heavy oil feedstock in a reactor to form an upgraded feedstock. Achieving very good dispersion of the catalyst precursor facilitates and maximizes the advantages of the colloidal or molecular hydroprocessing catalyst. A catalyst precursor and a heavy oil feedstock having a viscosity greater than the viscosity of the catalyst precursor are provided. The catalyst precursor is pre-mixed with a hydrocarbon oil diluent, forming a diluted catalyst precursor. The diluted precursor is then mixed with at least a portion of the heavy oil feedstock so as to form a catalyst precursor-heavy oil feedstock mixture. Finally, the catalyst precursor-heavy oil feedstock mixture is mixed with any remainder of the heavy oil feedstock, resulting in the catalyst precursor being homogeneously dispersed on a colloidal and/or molecular level within the heavy oil feedstock.

Membrane separation process

This invention relates to membrane separation of organic solubilized rhodium-organophosphite complex catalyst and free organophosphite ligand from a homogeneous non-aqueous hydroformylation reaction mixture, said mixture also containing, in addition to said catalyst and free ligand, aldehyde product and an organic solvent.

Processo para obtenção de aldeídos

Processo para preparação de aldeídos

Catalyst for enhanced propylene in fluidized catalytic cracking

There is disclosed a fluid phase catalytic cracking catalyst for the increased production of propylene and gasoline from heavy hydrocarbon feedstocks comprising between 10 and 20 wt.% Super-stable Y-type zeolite, between 10 and 20 wt.% Strain Sub-micron ZSM-5, between 20 and 30 weight percent pseudoboehmite alumina, and between 30 and 40 weight percent kaolin.

Storage catalyst regeneration process

METHOD FOR REGENERATING CATALYSTS.

Methods and mixing systems for introducing catalyst precursor into heavy oil feedstock

Methods and systems for mixing a catalyst precursor with a heavy oil feedstock preparatory to hydroprocessing the heavy oil feedstock in a reactor to form an upgraded feedstock. Achieving very good dispersion of the catalyst precursor facilitates and maximizes the advantages of the colloidal or molecular hydroprocessing catalyst. A catalyst precursor and a heavy oil feedstock having a viscosity greater than the viscosity of the catalyst precursor are provided. The catalyst precursor is pre-mixed with a hydrocarbon oil diluent, forming a diluted catalyst precursor. The diluted precursor is then mixed with at least a portion of the heavy oil feedstock so as to form a catalyst precursor-heavy oil feedstock mixture. Finally, the catalyst precursor-heavy oil feedstock mixture is mixed with any remainder of the heavy oil feedstock, resulting in the catalyst precursor being homogeneously dispersed on a colloidal and/or molecular level within the heavy oil feedstock.

Methods for the Regeneration of Titanium-containing Molecular Sieve Catalysts

본 발명은 티타늄 함유 분자체 촉매의 재생방법에 관한 것으로, 보다 상세하게는 과산화수소수와 알코올로 구성된 혼합용매를 이용한 간단한 처리를 통해 올레핀의 에폭시화 반응에 사용된 티타늄 함유 분자체 촉매를 재생하는 방법에 관한 것이다. 본 발명에 명시된 방법을 통해 활성이 저하된 촉매를 재생하면 재생된 촉매의 활성이 신규촉매의 활성과 대등함과 동시에 활성이 장시간 안정적으로 유지될 수 있다. The present invention relates to a method for regenerating a titanium-containing molecular sieve catalyst, and more particularly, a method for regenerating a titanium-containing molecular sieve catalyst used in the epoxidation reaction of an olefin through a simple treatment using a mixed solvent composed of hydrogen peroxide and alcohol. It is about. By regenerating the catalyst whose activity is reduced through the method specified in the present invention, the activity of the regenerated catalyst is comparable with that of the new catalyst and the activity can be stably maintained for a long time. 촉매 재생, 분자체 촉매, 티타늄 실리칼라이트, 과산화수소, 산화제, 혼합 용매, 올레핀, 에폭시화 Catalyst regeneration, molecular sieve catalyst, titanium silicalite, hydrogen peroxide, oxidant, mixed solvent, olefin, epoxidation

Ti‑HSZ‑N催化剂催化大环烯烃分子(C原子数≥7)环氧化的循环再生方法

本发明公开了一种Ti‑HSZ‑N催化剂催化大环烯烃分子(C原子数≥7)环氧化的循环再生方法，该方法包括如下步骤：1)回收催化大环烯烃环氧化的Ti‑HSZ‑N催化剂：将催化大环烯烃分子环氧化反应后的Ti‑HSZ‑N催化剂回收，经离心、干燥处理后，备用；2)再生催化大环烯烃环氧化的Ti‑HSZ‑N催化剂：将步骤1)回收处理后的Ti‑HSZ‑N催化剂与H 2 O 2 水溶液和乙醇的混合物按质量比为1：10～49的比例混合均匀，置于密闭反应釜内，在10～160转/分钟的转速下，温度为86～150℃下转动处理5～48小时，再经离心、洗涤、干燥处理，即可再生。本发明通过H 2 O 2 水溶液和乙醇的混合液对回收的大环烯烃环氧化反应后Ti‑HSZ‑N催化剂在密闭体系中进行转动处理，不仅无需高温煅烧处理，催化再生效果好，可多次循环使用。

Catalyst removal process.

Chromium-based catalysts and processes for converting alkanes into higher and lower aliphatic hydrocarbons

Processes for cracking an alkane reactant to form a lower aliphatic hydrocarbon product and for converting an alkane reactant into a higher aliphatic hydrocarbon product are disclosed, and these processes include a step of contacting the alkane reactant with a supported chromium (II) catalyst. In addition to the formation of various aliphatic hydrocarbons, such as linear alkanes, branched alkanes, 1-alkenes, and internal alkenes, aromatic hydrocarbons and hydrogen also can be produced.

Process for preparing aldehydes

The invention relates to a process for preparing aldehydes by hydroformylation of olefinically unsaturated compounds with hydrogen and carbon monoxide in a homogeneous phase in the presence of a catalyst system comprising organometallic complex compounds and ligands of these complex compounds in molar excess, and separating off the catalyst system from the hydroformylation reaction mixture by pressure filtration on a semipermeable membrane of an aromatic polyamide. In this process, the molar mass ratio of the ligands present in excess to the aldehydes prepared is 9-30, preferably 10-25, in particular 10-15, with the ligands present in excess not being alkylammonium or arylammonium salts of sulfonated, carboxylated or phosphonated aromatic diphosphines. By maintaining the molar mass ratio, not only are high activation and selectivity values obtained in the hydroformylation itself, but also excellent retention values for the catalyst system are obtained in the membrane filtration step.

Processes for reducing the loss of catalyst activity of a ziegler-natta catalyst

A process for reducing the loss of catalyst activity of a Ziegler-Natta catalyst is provided. The process includes preparing a Ziegler-Natta (ZN) catalyst by contacting the ZN catalyst with at least one aluminum alkyl compound to produce a reduced ZN catalyst and storing and/or transporting the reduced ZN catalyst for at least 20 days at a temperature of 25 C or less. The reduced ZN catalyst may be used for preparing polyolefin polymers.

一种pacm50连续化生产过程中催化剂的再生工艺

本发明公开一种PACM50连续化生产过程中催化剂的再生工艺，包括以下步骤：原料4,4’‑二氨基二苯基甲烷进行连续加氢制备PACM50(反反体含量在50wt％左右的4,4’‑二氨基二环己基甲烷)，当催化剂活性下降时，将进料切换为PACM20(反反体含量为20wt％左右的4,4’‑二氨基二环己基甲烷)，同时添加一定量的水，当催化剂活性恢复稳定后，再将进料切换为原料4,4’‑二氨基二苯基甲烷。该工艺在PACM20的异构化反应中，与水共同作用对失活催化剂进行在线活化，活化过程中PACM20转化为PACM50，无需停车或添加后处理流程，在提高催化剂寿命的同时，极大提升了生产效率。

减少齐格勒-纳塔催化剂的催化剂活性损失的方法

提供了减少齐格勒‑纳塔催化剂的催化剂活性损失的方法。该方法包括如下来制备齐格勒‑纳塔(ZN)催化剂：通过使ZN催化剂与至少一种烷基铝化合物接触，来产生还原的ZN催化剂，和在25℃或更低的温度下储存和/或运送该还原的ZN催化剂至少20天。该还原的ZN催化剂可以用于聚合聚烯烃聚合物。

Processes for reducing the loss of catalyst activity of a ziegler-natta catalyst

A process for reducing the loss of catalyst activity of a Ziegler-Natta catalyst is provided. The process includes preparing a Ziegler-Natta (ZN) catalyst by contacting the ZN catalyst with at least one aluminum alkyl compound to produce a reduced ZN catalyst and storing and/or transporting the reduced ZN catalyst for at least 20 days at a temperature of 25°C or less. The reduced ZN catalyst may be used for polymerizing polyolefin polymers.

Processes for reducing the loss of catalyst activity of a ziegler-natta catalyst

A process for reducing the loss of catalyst activity of a Ziegler-Natta catalyst is provided. The process includes preparing a Ziegler-Natta (ZN) catalyst by contacting the ZN catalyst with at least one aluminum alkyl compound to produce a reduced ZN catalyst and storing and/or transporting the reduced ZN catalyst for at least 20 days at a temperature of 25 C or less. The reduced ZN catalyst may be used for preparing polyolefin polymers.

METHOD FOR REGENERATING CATALYSTS.

수소화 촉매의 재생 방법

공정 조건하에 산화 작용이 없으면서 기체 상태로 존재하는 단일 물질 또는 혼합 물질로 50℃ 내지 300℃에서 스트리핑하는 단계를 포함하는, 기상 수소화 반응에 사용된 수소화 촉매의 재생 방법이 개시되어 있다.

Method of treatment with hydrogen and system for enriching heavy oil with implementation of colloid or molecular catalyst

FIELD: oil and gas industry. ^ SUBSTANCE: methods and systems of treatment of heavy oil raw material with hydrogen producing enriched material consists in implementation of colloid or molecular catalyst dispersed in heavy oil raw material, also in implementation of hydraulic cracking and hot separator. Colloid or molecular catalyst catalyses reactions of hydraulic cracking and reactions of other treatment utilising hydrogen in the hydraulic cracking reactor. Catalyst preferably is associated with pyrobitumen in heavy oil raw material facilitating reactions of enrichment including pyrobitumen to a higher degree, than to forming coke precursor and sediment. Colloid or molecular catalyst solves problems relevant to porous catalysts on a carrier during enriching heavy oil raw material, particularly inability of such catalysts to efficiently process pyrobitumen molecules. ^ EFFECT: decreased equipment clogging, increased level of conversion and more efficient utilisation of catalyst on carrier if used in combination with colloid or molecular catalyst. ^ 36 cl, 5 tbl, 25 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 385 346 (13) C2 (51) МПК C10G 47/02 C10G 47/26 C10G 65/02 (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2006141838/04, 28.04.2005 (24) Дата начала отсчета срока действия патента: 28.04.2005 (72) Автор(ы): ЛОТТ Роджер К. (CA), ЛИ Лап-Кеунг (US) (43) Дата публикации заявки: 10.06.2008 2 3 8 5 3 4 6 (45) Опубликовано: 27.03.2010 Бюл. № 9 (56) Список документов, цитированных в отчете о поиске: US 5578197 А, 26.11.1996. US 5178749 А, 12.01.1993. US 6660157 A, 09.12.2003. US 4134825 A, 16.01.1979. RU 2087523 C1, 20.08.1997. 2 3 8 5 3 4 6 R U (86) Заявка PCT: US 2005/014411 (28.04.2005) C 2 C 2 (85) Дата перевода заявки PCT на национальную фазу: 28.11.2006 (87) Публикация PCT: WO 2005/104749 (10.11.2005) Адрес для переписки: 129090, Москва, ул. Б.Спасская ...

process for regeneration of a nitrogen oxide storage catalyst.

Ancillary cracking of paraffinic naphtha in conjuction with FCC unit operations

The production of light hydrocarbons consisting of ethylene, propylene, butylenes, and of gasoline is enhanced by introducing a virgin paraffinic naphtha feedstream derived from an external source into an ancillary downflow reactor that utilizes the same catalyst composition as an adjacent FCC unit for cracking the naphtha and withdrawing the desired lighter hydrocarbon reaction product stream from the downflow reactor and regenerating the catalyst in the same regeneration vessel that is used to regenerate the spent catalyst from the FCC unit. The efficiency of the recovery of the desired lighter olefinic hydrocarbons is maximized by limiting the feedstream to the downflow reactor to paraffinic naphtha that can be processed under relatively harsher conditions, while minimizing production of undesired by-products and reducing the formation of coke on the catalyst.

Hydrogen treatment methods and systems and methods of improving existing fixed layer systems

FIELD: chemistry. ^ SUBSTANCE: invention relates to a fixed layer hydrogen treatment system, as well as methods of improving the existing fixed layer hydrogen treatment systems, involving preconcentration of heavy oil material in one or more suspension-phase reactors using a colloidal or molecular catalyst and further hydrogen treatment of the concentrated material in one or more fixed layer reactors using a supported porous catalyst. The colloidal or molecular catalyst is formed in situ by directly mixing a catalyst precursor composition with heavy oil material and raising temperature of the material to temperature above decomposition point of the catalyst precursor composition. Asphaltene and other hydrocarbon molecules which are in any case are too large for diffusion into pores of the fixed bed catalyst may be impregnated by the colloidal or molecular catalyst. One or more suspension-phase reactors may be made and placed upstream from one or more fixed layer reactors of the existing fixed layer hydrogen treatment system and/or converted from one or more existing fixed layer reactors. ^ EFFECT: higher conversion level, higher catalyst activity. ^ 78 cl, 6 ex, 5 tbl, 29 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 393 203 (13) C2 (51) МПК C10G 47/02 C10G 65/02 (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2006141836/04, 28.04.2005 (24) Дата начала отсчета срока действия патента: 28.04.2005 (73) Патентообладатель(и): ХЕДУОТЕРС ХЭВИ ОЙЛ, ЛЛС (US) R U (30) Конвенционный приоритет: 28.04.2004 US 60/566,269 28.04.2004 US 60/566,254 (72) Автор(ы): ЛОТТ Роджер К. (CA), ЛИ Лап-Кеунг (US), КУИНН Питер К. (CA) (43) Дата публикации заявки: 10.06.2008 2 3 9 3 2 0 3 (45) Опубликовано: 27.06.2010 Бюл. № 18 (56) Список документов, цитированных в отчете о поиске: US 5178749 А, 12.01.1993. US 5578197 А, 26.11.1996. US 4134825 А, 16.01.1979. US 3161585 А, 15.10.1964. RU 2181751 ...

Catalyst regeneration

본 발명은 (i) 산화마그네슘을 포함하는 이성질체화 촉매 및 (ii) 무기 담체, 및 산화몰리브덴 및 산화텅스텐 중 하나 이상을 포함하는 복분해 촉매를 포함하는 사용된 촉매 혼합물의 재생에 대해 개시하고 있다. 본 방법은 (a) 사용된 촉매 혼합물을 산소-함유 기체의 존재하에 데코킹 (decoking) 함으로써 데코킹된 촉매 혼합물을 생성하고; (b) 데코킹된 촉매 혼합물을 스팀과 100 내지 300 ℃ 범위의 온도에서 접촉시켜 재생된 촉매 혼합물을 생성하는 것을 포함한다. The present invention discloses the regeneration of used catalyst mixtures comprising (i) an isomerization catalyst comprising magnesium oxide and (ii) an inorganic carrier and a metathesis catalyst comprising at least one of molybdenum oxide and tungsten oxide. The process comprises: (a) decoking the used catalyst mixture in the presence of an oxygen-containing gas to produce a decooked catalyst mixture; (b) contacting the decoated catalyst mixture with steam at a temperature in the range of from 100 to 300 &lt; 0 &gt; C to produce a regenerated catalyst mixture.

Method for reactivating deactivated co-ordination catalysts and a device for carrying out said method

The invention relates to a method for preventing the deactivation of co-ordination catalysts and/or for reactivating deactivated co-ordination catalysts by irradiation with electromagnetic radiation.

Polymerisation method and device for carrying out a polymerisation method

A polymerization process with elevated productivity using a coordination catalyst, wherein electromagnetic radiation is applied during polymerization. The irradiation of light greatly increases the activity of the coordination catalyst.

Polymerisation method and device for carrying out a polymerisation method

A polymerisation method with improved productivity, using a co-ordination catalyst, whereby electromagnetic radiation is applied during the polymerisation. The activity of the co-ordination catalyst is greatly enhanced by the irradiation with light.

Polymerisation method and device for carrying out a polymerisation method

A polymerisation method with improved productivity, using a co-ordination catalyst, whereby electromagnetic radiation is applied during the polymerisation. The activity of the co-ordination catalyst is greatly enhanced by the irradiation with light.

Polymerisation method and device for carrying out a polymerisation method

A polymerization process with elevated productivity using a coordination catalyst, wherein electromagnetic radiation is applied during polymerization. The irradiation of light greatly increases the activity of the coordination catalyst.

Copolymers of $g(a)-olefins and of functional monomers, their production and the use thereof

The invention relates to copolymers which can be produced from at least one α-olefin monomer and one functional monomer while using a coordination catalyst, whereby the catalyst and/or the monomer are/is irradiated with electromagnetic radiation. The invention also relates to a method for producing said copolymers and to their use.

process for catalyst regeneration and extended use

processo para regeneração de catalisador e uso estendido. a presente invenção refere-se a um método de produção de um alquilaromático através da alquilação de um aromático com um agent de alquilação, tal como produção de etilbenzeno através de uma reação de alquilação de benzeno, é descrito. o método inclui uso de um catalisador de h-beta para minimizar perturbações de processo devido à desativação do catalisador de alquilação e a regeneração ou substituição de catalisador resultante. o catalisador de h-beta pode ser usado em um reator de alquilação preliminar que está localizado a montante do reator de alquilação primária. o catalisador de h-beta usado em um reator de alquilação preliminar pode levar à reativação do catalisador no reator de alquilação primária. process for catalyst regeneration and extended use. The present invention relates to a method of producing an alkylaromatic by alkylating an aromatic with an alkylating agent, such as producing ethylbenzene via a benzene alkylation reaction, is described. The method includes use of an h-beta catalyst to minimize process disturbances due to deactivation of the alkylation catalyst and the resulting catalyst regeneration or replacement. The h-beta catalyst may be used in a preliminary alkylation reactor which is located upstream of the primary alkylation reactor. The h-beta catalyst used in a preliminary alkylation reactor may lead to reactivation of the catalyst in the primary alkylation reactor.

一种在用连续重整催化剂的处理方法

一种在用连续重整催化剂的处理方法，包括当用于反应的连续重整催化剂，在其碱金属和碱土金属的含量之和大于120μg/g时，将其在烧焦后用酸溶液进行处理，除去碱金属和碱土金属，然后再进行水氯活化和还原。该方法可有效恢复在用连续重整催化剂的活性。

Method of Making Aldehyde

본 발명은 유기 금속 착화합물과 몰 과량의 이의 리간드를 포함하는 촉매계의 존재하에, 균질상의 수소 및 일산화탄소에 의한 올레핀성 불포화 화합물의 하이드로포밀화 단계 및 방향족 폴리아미드로 제조된 반투과성 막에 의한 가압 여과에 의해 하이드로포밀화 반응 혼합물로부터 촉매계를 분리해 내는 단계를 포함하여 알데하이드를 제조하는 방법에 관한 것이다. 본 발명 방법에서, 제조된 알데하이드에 대한, 과량으로 존재하는 리간드의 몰 질량비는 9 내지 30, 바람직하게는 10 내지 25, 특히 10 내지 15이며, 단 리간드는 설폰화 방향족 디포스핀, 카복실화 방향족 디포스핀 또는 포스포네이트화 방향족 디포스핀의 알킬암모늄염 또는 아릴암모늄염이 아니다. The present invention relates to a hydroformylation step of an olefinically unsaturated compound with homogeneous hydrogen and carbon monoxide in the presence of a catalyst system comprising an organometallic complex and a molar excess of ligand thereof and to pressure filtration by a semipermeable membrane made of aromatic polyamide. And separating the catalyst system from the hydroformylation reaction mixture. In the process of the invention, the molar mass ratio of the ligand present in excess to the prepared aldehyde is 9 to 30, preferably 10 to 25, in particular 10 to 15, provided that the ligand is a sulfonated aromatic diphosphine, carboxylated aromatic depot It is not an alkylammonium salt or an arylammonium salt of a spin or phosphonated aromatic diphosphine. 몰 질량비를 유지시킴으로써, 하이드로포밀화 자체에서 높은 활성도 값과 선택도 값이 얻어질 뿐만 아니라 막 여과 단계에서 촉매계에 대한 우수한 보유도 값도 얻어진다. By maintaining the molar mass ratio, not only high activity and selectivity values are obtained in the hydroformylation itself but also excellent retention values for the catalyst system in the membrane filtration step.

用于在不同操作条件下使催化剂再生的再生器

本发明涉及用于在不同操作条件下使催化剂再生的再生器，更具体地涉及一种包括在竖直方向上延伸的容器（2）的移动床催化剂再生器（1），所述容器（2）被划分为沿容器竖直高度延伸的至少两个再生区，在再生区中催化剂颗粒在重力作用下运动，其中各再生区包括催化剂在其中相继地且按顺序地运动的：a）燃烧部（CO）；b）设置在燃烧部下方且包括用于将催化剂从燃烧部（CO）提供至氧氯化部（O）的装置的氧氯化部（O）；c）设置在氧氯化部的下方的煅烧部（CA）；其特征在于，催化剂和气体不能透过的分离装置将再生区相互分隔，使得每个区的催化剂能够在不同操作条件下进行再生。

Catalyst regeneration apparatus

본 발명은 촉매 입자들을 재생하는 재생장치로서, 상기 재생장치는 공급된 촉매로부터 촉매 잔재 및 오염물질을 제거하는 제1 촉매 분리기; 상기 제1 촉매 분리기 내에 설치되는 미분리된 촉매 잔재와 오염물질을 추가적으로 분리정제하는 제2 촉매 분리기 및 상기 제1 촉매 분리기와 일체로 형성되는 본체로서, 상기 본체는 하나 이상의 공급 가스 유입관과 재생된 촉매를 배출시키기 위한 촉매 배출관을 포함하고, 촉매는 상기 본체 내에서 이동상으로 연소 구역, 염소화 구역 및 건조 구역을 연속적으로 통과하며, 상기 본체는 2 이상의 방사형 연소 구역을 포함하는 본체를 포함하는 것을 특징으로 하는 촉매 재생 장치에 관한 것으로, 반응기 본체가 제1 촉매 분리기와 일체로 구성되고, 촉매의 분리 및 선별이 2 단계로 진행되어, 재생 반응 효율을 향상시킬 수 있는 촉매 재생 장치에 관한 것이다. The present invention relates to a regeneration apparatus for regenerating catalyst particles, the regeneration apparatus comprising: a first catalyst separator for removing catalyst residues and contaminants from the supplied catalyst; A second catalyst separator for additionally separating and purifying unremoved catalyst residues and contaminants provided in the first catalyst separator, and a main body integrally formed with the first catalyst separator, Wherein the catalyst is continuously passed through the combustion zone, the chlorination zone and the drying zone into the mobile phase in the body, the body comprising a body comprising at least two radial combustion zones The present invention relates to a catalyst regeneration apparatus, and more particularly, to a catalyst regeneration apparatus in which a reactor main body is integrally formed with a first catalyst separator, and the separation and sorting of the catalyst proceeds in two steps to improve the regeneration reaction efficiency.

Chromium-Based Catalysts and Processes for Converting Alkanes into Higher and Lower Aliphatic Hydrocarbons

Processes for cracking an alkane reactant to form a lower aliphatic hydrocarbon product and for converting an alkane reactant into a higher aliphatic hydrocarbon product are disclosed, and these processes include a step of contacting the alkane reactant with a supported chromium (II) catalyst. In addition to the formation of various aliphatic hydrocarbons, such as linear alkanes, branched alkanes, 1-alkenes, and internal alkenes, aromatic hydrocarbons and hydrogen also can be produced.

Chromium-based catalysts and processes for converting alkanes into higher and lower aliphatic hydrocarbons

Processes for cracking an alkane reactant to form a lower aliphatic hydrocarbon product and for converting an alkane reactant into a higher aliphatic hydrocarbon product are disclosed, and these processes include a step of contacting the alkane reactant with a supported chromium (II) catalyst. In addition to the formation of various aliphatic hydrocarbons, such as linear alkanes, branched alkanes, 1-alkenes, and internal alkenes, aromatic hydrocarbons and hydrogen also can be produced.

基于铬的催化剂以及将烷烃转化成较高级和较低级脂肪族烃的工艺

公开了用于裂解烷烃反应物以形成较低级脂肪族烃产物以及用于将烷烃反应物转化成较高级脂肪族烃产物的工艺，并且这些工艺包括使所述烷烃反应物与负载型铬(II)催化剂接触的步骤。除形成诸如线性的烷烃、具支链的烷烃、1‑烯烃和内烯烃等各种脂肪族烃外，还可产生芳香族烃和氢气。

Chromium-based catalysts and processes for converting alkanes into higher and lower aliphatic hydrocarbons

Processes for cracking an alkane reactant to form a lower aliphatic hydrocarbon product and for converting an alkane reactant into a higher aliphatic hydrocarbon product are disclosed, and these processes include a step of contacting the alkane reactant with a supported chromium (II) catalyst. In addition to the formation of various aliphatic hydrocarbons, such as linear alkanes, branched alkanes, 1-alkenes, and internal alkenes, aromatic hydrocarbons and hydrogen also can be produced.

用于在流化催化裂化中增产丙烯的催化剂

本发明提供了一种用于由重质烃原料增产丙烯和汽油的流化催化裂化催化剂，所述催化剂包含：在10重量％至20重量％之间的超稳Y型沸石；在10重量％至20重量％之间的磷改性亚微米ZSM‑5；在20重量％至30重量％之间的假勃姆石氧化铝；以及在30重量％至40重量％之间的高岭土。

유동상 접촉 분해에서 향상된 프로필렌용 촉매

중질 탄화수소 공급원료로부터 프로필렌 및 가솔린의 증가된 생산을 위한 유동상 접촉 분해 촉매는 개시되고, 상기 촉매는 10 및 20중량% 사이의 초-안정 Y-형 제올라이트, 10 및 20중량% 사이의 인 변형 서브-미크론 ZSM-5, 20 및 30중량% 사이의 슈도보헤마이트 알루미나, 및 30 및 40중량% 사이의 카올린을 포함한다.

Catalytic cracking catalyst compositions having improved bottoms conversion

본 발명은 접촉 분해 조건 하에 접촉 분해 능력을 갖는 제올라이트, 첨가된 실리카, 침전된 알루미나, 및 선택적으로 점토를 포함하는 미립자 접촉 분해 촉매에 관한 것이다. 접촉 분해 촉매는 높은 매트릭스 표면적을 갖고, 접촉 분해 공정, 특히 유동 접촉 분해 공정에 유용하여 일정한 코크 형성시 바텀 전환율을 개선시킨다. The present invention relates to a particulate catalytic cracking catalyst comprising zeolite with catalytic cracking ability under catalytic cracking conditions, added silica, precipitated alumina, and optionally clay. Catalytic cracking catalysts have a high matrix surface area and are useful in catalytic cracking processes, particularly in flow contact cracking processes, to improve bottom conversion during constant coke formation.

Реактор регенерации, способный регенерировать катализаторы в разных рабочих условиях

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 138 499 A (51) МПК B01J 19/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015138499, 09.09.2015 (71) Заявитель(и): ИФП ЭНЕРЖИ НУВЕЛЛЬ (FR) Приоритет(ы): (30) Конвенционный приоритет: 10.09.2014 FR 1458504 Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" Стр.: 1 A 2 0 1 5 1 3 8 4 9 9 R U A (57) Формула изобретения 1. Реактор регенерации (регенератор) катализатора в движущемся слое (1), содержащий камеру (2), вытянутую в вертикальном направлении, причем указанная камера разделена по меньшей мере на две зоны регенерации, простирающиеся вертикально по высоте указанной камеры, в которых под действием силы тяжести движутся частицы катализатора, причем каждая зона регенерации содержит последовательно в порядке движения катализаторов: a) секцию горения (CO); b) секцию оксихлорирования (O), находящуюся ниже секции горения и содержащую средства подвода катализатора из секции горения (CO) в секцию оксихлорирования (O); c) секцию обжига (CA), находящуюся ниже секции оксихлорирования, отличающийся тем, что зоны регенерации отделены друг от друга разделителем, непроницаемым для катализаторов и газов, чтобы катализаторы в каждой из зон можно было регенерировать в разных рабочих условиях. 2. Регенератор по п. 1, причем каждая из секций горения содержит кольцевое пространство, ограниченное двумя сетками, проницаемыми для газа и непроницаемыми для катализаторов, в котором под действием силы тяжести движется катализатор. 3. Регенератор по п. 1, причем каждая секция горения образована частью кольцевого пространства (30), причем кольцевое пространство (30) ограничено двумя сетками (9, 9'), проницаемыми для газа и непроницаемыми для катализаторов, и разделено на части разделителями (34), непроницаемыми для катализаторов и газа. 4. Регенератор по одному из пп. 2 и 3, причем сетки выбраны из решетки и перфорированной ...

Process for the regeneration of a hydrogenation catalyst

Es wird ein Verfahren zur Regenerierung eines Hydrierkatalysators vorgeschlagen, der in einer Gasphasenhydrierung eingesetzt worden war, durch Strippen mit einer Substanz oder einem Substanzgemisch, das unter Verfahrensbedingungen keine oxidierende Wirkung hat und in gasförmigem Aggregatzustand vorliegt, bei einer Temperatur im Bereich von 50 bis 300 DEG C. A process for regenerating a hydrogenation catalyst which had been used in a gas phase hydrogenation by stripping with a substance or a mixture of substances which has no oxidizing action under process conditions and is in the gaseous state of aggregation at a temperature in the range from 50 to 300 ° is proposed C.

Verfahren zur regenerierung eines hydrierkatalysators

Es wird ein Verfahren zur Regenerierung eines Hydrierkatalysators vorgeschlagen, der in einer Gasphasenhydrierung eingesetzt worden war, durch Strippen mit einer Substanz oder einem Substanzgemisch, das unter Verfahrensbedingungen keine oxidierende Wirkung hat und in gasförmigem Aggregatzustand vorliegt, bei einer Temperatur im Bereich von 50 bis 300 DEG C.

Method for regenerating a hydrogenation catalyst

A process for regenerating a hydrogenation catalyst which has been used in a gas-phase hydrogenation, which comprises stripping at from 50 to 300° C. with a substance or a substance mixture which under the process conditions has no oxidizing action and is present in the gaseous state is described.

Method for regenerating a hydrogenation catalyst

The invention concerns a method for regenerating a hydrogenation catalyst which has been used during a gas phase hydrogenation, said method involving a stripping process with a substance or mixture of substances having no oxidizing effect in the conditions of the process and which is in gaseous state at a temperature ranging between 50 and 300 °C.

水素化触媒の再生方法

氢化催化剂的再生方法

本发明涉及一种将已用于气相氢化的氢化催化剂再生的方法，该方法包括在50－300℃下用在工艺条件下无氧化作用且以气态存在的物质或物质混合物汽提。

Method for regenerating a hydrogenation catalyst

The invention concerns a method for regenerating a hydrogenation catalyst which has been used during a gas phase hydrogenation, said method involving a stripping process with a substance or mixture of substances having no oxidizing effect in the conditions of the process and which is in gaseous state at a temperature ranging between 50 and 300 ~C.

Method for regenerating a hydrogenation catalyst

A process for regenerating a hydrogenation catalyst which has been used in a gas-phase hydrogenation, which comprises stripping at from 50 to 300° C. with a substance or a substance mixture which under the process conditions has no oxidizing action and is present in the gaseous state is described.

Method for regenerating a hydrogenation catalyst

The invention concerns a method for regenerating a hydrogenation catalyst which has been used during a gas phase hydrogenation, said method involving a stripping process with a substance or mixture of substances having no oxidizing effect in the conditions of the process and which is in gaseous state at a temperature ranging between 50 and 300 °C.

Method for regenerating a hydrogenation catalyst

The invention concerns a method for regenerating a hydrogenation catalyst which has been used during a gas phase hydrogenation, said method involving a stripping process with a substance or mixture of substances having no oxidizing effect in the conditions of the process and which is in gaseous state at a temperature ranging between 50 and 300 ~C.

METHOD FOR REGENERATING A DISABLED CATALYST

再生催化剂方法

一个目的是从基本上惰性的颗粒中有效地分离催化剂颗粒，并任选地使多种催化剂颗粒彼此分离，从而有效地进行催化剂再生。在从固定床反应器中取出包含反应中恶化的固体催化剂组分的含催化剂组分后，再生该固体催化剂组分。如果包含多种具有彼此不同形状的组分作为固体催化剂组分，在取出步骤后，进行彼此分离该固体催化剂组分的催化剂组分分离步骤，然后再生该固体催化剂组分。此外，如果含催化剂组分包含惰性组分，在取出步骤后，进行分离惰性组分的惰性组分分离步骤，然后再生该固体催化剂组分。

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Catalytic cracking catalyst compositions having improved bottoms conversion

A particulate catalytic cracking catalyst which comprises a zeolite having catalytic cracking ability under catalytic cracking conditions, added silica, precipitated alumina and, optionally clay. The catalytic cracking catalyst has a high matrix surface area and is useful in a catalytic cracking process, in particularly, a fluid catalytic cracking process, to improve bottoms conversion at a constant coke formation.

Rejuvenation of nitrogen compoundpoisoned catalysts