КАТАЛИЗАТОР ДЛЯ СИНТЕЗА 2- И 4-ПИКОЛИНОВ, СПОСОБ ПОЛУЧЕНИЯ 2- И 4-ПИКОЛИНА И СПОСОБ ПОЛУЧЕНИЯ КАТАЛИЗАТОРА

Изобретение относится к катализатору для синтеза 2- и 4-пиколинов, способу его получения и способу получения 2- и 4-пиколина. Описан катализатор, который может быть использован для синтеза 2- и 4-пиколинов, содержащий гетерополикислоту, выбранную из группы, включающей кремневольфрамовую кислоту, фосфорвольфрамовую кислоту и ванадовольфрамовую кислоту, нанесенную на подложку-силикагель, размер частиц которого составляет 6-14 меш. Описан также способ получения катализатора, включающий растворение гетерополикислоты в дистиллированной воде, смешивание полученной смеси с требуемым количеством силикагеля для получения взвеси, перемешивание взвеси до получения равномерной пропитки, сушку взвеси на воздухе при температуре 200-250°С от 0,5 до 1,5 часов, дальнейшее нагревание взвеси при температуре от 300 до 400°С от 0,5 до 1, 5 часов и охлаждение полученного продукта до комнатной температуры в эксикаторе для получения требуемого катализатора. Описан способ получения 2- и 4-пиколинов, включающий ...

СПОСОБ НЕПРЕРЫВНОГО ГЕТЕРОГЕННО-КАТАЛИЗИРУЕМОГО ЧАСТИЧНОГО ДЕГИДРИРОВАНИЯ

Использование: нефтехимия. Сущность: реакционный газ в реакционной зоне пропускают через, по меньшей мере, один стационарный слой катализатора, на котором посредством каталитического дегидрирования образуется молекулярный водород и частично, по меньшей мере, один дегидрированный углеводород. В реакционный газ до и/или после входа в реакционную зону подают, по меньшей мере, один газ, содержащий молекулярный кислород. В реакционной зоне молекулярным кислородом частично окисляют входящий в состав реакционного газа молекулярный водород до водяного пара. Газовый продукт, который содержит молекулярный водород, водяной пар, по меньшей мере, один дегидрированный углеводород и, по меньшей мере, один подлежащий дегидрированию углеводород, выводят из реакционной зоны, разделяют на две части одинакового состава, одну из которых в качестве циркуляционного газа рециркулируют в реакционную зону. Технический результат: упрощение технологии процесса, повышение селективности образования пропена. 12 з.п.

КАТАЛИЗАТОР И СПОСОБ ПОЛУЧЕНИЯ МЕТИЛЭТИЛКЕТОНА

Изобретение относится к области основного органического синтеза, а именно к способу получения метилэтилкетона каталитическим окислением н-бутенов кислородом, а также к катализаторам для его осуществления. Изобретение решает задачу увеличения эффективности процесса за счет повышения стабильности компонентов катализатора (Pd + ГПК), что позволит значительно повысить производительность катализатора и его активность в обеих реакциях. Задача решается способом получения метилэтилкетона окислением н-бутенов кислородом и/или кислородсодержащим газом с использованием каталитической системы, которая состоит из водного раствора ГПК-z - молибдованадофосфорной гетерополикислоты или смеси гетерополикислот и/или их солей, а также палладия с концентрацией 5·10-4-1·10-2 М, стабилизированного фталоцианиновым лигандом Рс при мольном отношении [Pd]:[Рс]=0,5-2. Используют Mo-V-фосфорную ГПК-z состава HaPxMoyVzOb, где 1≤х≤3; 8≤у≤20; 2≤z≤12; 40≤b≤99; а=2b-6у-5(х+z). Концентрация ванадия в водном растворе ГПК-z ...

КАТАЛИЗАТОР И СПОСОБ ПОЛУЧЕНИЯ ФЕНОЛА ИЗ БЕНЗОЛА

Изобретение относится к области получения фенола, а также получения катализаторов для этого процесса. Способ производства фенола состоит в том, что пары бензола вместе с газом, содержащим водород и кислород, пропускают через слой твердого нанесенного катализатора. Катализатор содержит два активных компонента: переходный металл VIII группы и гетерополисоединения, производные от гетерополикислот состава HnPMImMII12-mO40, где МI - W, Мо, МII - V, Zr, Ti, Fe, n = 3-6, m = 0-6, и/или продукты деструкции этих гетерополисоединений. Технический результат: увеличение производительности процесса. 2 с. и 7 з.п.ф-лы, 5 табл.

КАТАЛИТИЧЕСКАЯ КОМПОЗИЦИЯ ДЛЯ ОБЛАГОРАЖИВАНИЯ УГЛЕВОДОРОДНОЙ СМЕСИ

... 1. Каталитическая композиция, содержащая бета-цеолит, металл VIII группы, металл VI В группы и, возможно, один или более оксидов в качестве носителя. 2. Каталитическая композиция по п.1, где бета-цеолит находится в форме, в которой катионные центры цеолита преимущественно заняты ионами водорода. 3. Каталитическая композиция по п.2, в которой не менее 80% катионных центров заняты ионами водорода. 4. Каталитическая композиция по п.1, содержащая бета-цеолит, металл VI В группы и металл VIII группы, в которой указанный цеолит присутствует в количестве, составляющем от 70 до 90 мас%. 5. Каталитическая композиция по п.1, содержащая бета-цеолит, металл VI В группы и металл VIII группы и один или более оксидов металлов, в которой указанный цеолит присутствует в количестве, составляющем от 5 до 30 мас%. по отношению к общей массе катализатора. 6. Каталитическая композиция по п.1, в котором металл VIII группы выбирают из кобальта и никеля. 7. Каталитическая композиция по п.1, в которой металл VI ...

Способ получения метакриловой кислоты

Способ получения метакролеина и метакриловой кислоты

I. СПОСОБ ПОЛУЧЕНИЯ МЕТАК-, РОЛЕИНА И 11ЕТАКР1ШОВОЙ КИСЛОТЫ окислением изобутилового альдегида в ra-i зоной фазе молекулярным кислородом или кислороде од ержаг4им газом в присутствии водянргр пара и катализа fopeif содержащего молибден, ванадий, фос :фор,и кислород при 200-370 С, отличающийся тем, что, с целью увег. личения выхода целевого продукта, в качестве катализатора используют гетерополикислоту или смесь гетерополикислоты с ее солью, выраженную следукш (ей эмпирической формулой Mp V PfeXdfXi или НОО,Ч,РС, где Mo,V,P,0 - соответственно молибден , ванадий, фосфор и кислород; Х- один или два элемента, выбранных из группы,, содержащей медь, олово , торий, алюминий, германий, никель, же- . лезо, кобальт, цинк, tuтан , свинец, рений, цирконий , хром, церий, висмут и мьшьяк; У - калий, рубидий, цезий, таллий; ...

Способ приготовления ванадий-молибденового катализатора для окисления бензола

MIT MAKROPOREN DURCHSETZTER OXIDATIONSKATALYSATOR

HETEROPOLYSÄUREKATALYSATOREN MIT AUSGETAUSCHTEN KATIONEN UND VANADIUM FÜR DIE DAMPFPHASEN-OXIDATION

VERFAHREN ZUR OXYDEHYDRIERUNG VON ISOBUTTERSAEURE.

Continuous prodn. of methacrylic acid (I) is effected by gas-phase dehydrogenation of isobutyric acid (II) with O2 in a fluidised bed of heterogeneous catalyst, using less than 2 moles of steam per mole of (II). The reaction is effected under reduced pressure (esp. up to 700 mbar) using a catalyst comprising a Mo/V/P heteropolyacid on a support with a surface area below 2 m2/g. During operation, part of the catalyst is continuously withdrawn, regenerated with O2 in a 2nd fluidised bed, and recycled. The off-gas from the 2nd fluidised bed may also be recycled to the reactor, as may be part of the off-gas from the reactor.

Carbonylierungskatalysator

VERFAHREN ZUR HERSTELLUNG VON ACRYLSAEURE ODER METHACRYLSAEURE

Fliessbettkatalysator für die Ammoxidation von Propylen zu Acrylonitril

PROCESS FOR THE PRODUCTION AND USE OF AN OXIDATION CATALYST

... 1331423 Acrylic and methacrylic acids TOYO SODA MFG CO Ltd 16 Oct 1970 [25 July 1969] 37626/69 Heading C2C [Also in Division B1] Acrylic and methacrylic acids are produced by the gas phase oxidation of acrolein or methacrolein in the presence of a catalyst containing molybdenum and vanadium oxides prepared by calcining at 330-340‹ C. a mixture containing the oxides and an organic compound containing chemically combined oxygen or nitrogen (see Divisions B1-B2).

PROCESS FOR PRODUCING METHACRYLIC ACID AND A CATALYST

OXYDEHYDROGENATION CATALYST COMPOSITION

PROCESS FOR PREPARING METHACRYLIC ACID AND CATALYST FOR USE THEREIN

... 1487765 Oxidation catalysts NIPPON ZEON CO Ltd 14 Nov 1974 [22 Nov 1973 14 March 1974] 49345/74 Heading B1E [Also in Division C2] Catalysts have the empirical formula: Mo 12 P 0.1-8 V 0.1-8 L 0.1-8 M 0- 6 O f wherein L is Tl, Rb, Cs and/or K and M is Sr, Zn, Cd, Nb, B, Pb, Bi and/or W. The catalysts may be diluted with an inert diluent or supported on an inert carrier. In the examples catalysts are made by mixing aqueous solutions of ammonium molybdate, phosphoric acid and compounds of the elements L and M with a solution of ammonium metavanadate in aqueous oxalic acid, evaporating the mixture to dryness, calcining, pulverizing and screening.

PROCESS FOR PRODUCING METHACRYLIC ACID AND CATALYST THEREFOR

... 1498595 Methacrylic acid TOYO SODO MFG CO Ltd 21 May 1976 [23 May 1975] 21226/76 Heading C2C [Also in Division B1] A process for producing methacrylic acid comprises reacting methacrolein with molecular oxygen or a molecular-oxygen containing gas in the vapour phase in the presence of a complex oxide catalyst having the empirical formula Mo a V b P c Ce d O e where a, b, c, d and e represent atomic ratios such that when a = 12, b = 0À01-2, c = 0À1-3, d = 0À01-2 and e assumes a value depending upon the valencies of the other components.

Phosphotungstic acid preparation method

Provided is a phosphotungstic acid preparation method. The method comprises: mixing a mixed solution comprising tungsten, phosphorus and an inorganic acid and an oil phase comprising organic alcohol, carrying out extraction, and carrying out stripping on an obtained loaded organic phase and distilled water according to a volume ratio of 3:1-10:1 between the oil phase and an aqueous phase, so as to obtain a strip liquor; and carrying out evaporative crystallization or spray drying on the strip liquor to obtain phosphotungstic acid crystals, the organic alcohol being C7-C20 alcohol. By means of the method, high-efficiency synchronous extraction of phosphotungstic acid can be implemented; stripping is carried out by using distilled water, and the stripped organic phase is not doped with impurities and can be directly recycled.

SUPPORTED CATALYST AND USE OF IT IN A PROCESS FOR THE VAPOUR PHASE OXIDATION OF BENZENE TO MALEIC ANHYDRIDE

... 1,274,480. Aluminium phosphate-supported catalyst. LAPORTE INDUSTRIES Ltd. 7 Dec., 1970 [19 Dec., 1969], No. 61900/69. Heading B1E. [Also in Division C2] A supported catalyst comprises a catalyst component suitable for the vapour phase oxidation of benzene to maleic anhydride supported on aluminium phosphate which is in the cristobalite form. The catalyst component is suitably one or more of molybdenum oxide, tungsten oxide and vanadium oxide optionally together with phosphorus pentoxide, e.g. MoCl 3 , V 2 O 2 and P 2 O 5 , in a weight ratio MoO 3 :V 2 O 5 being from 1:3 to 4:1 and the weight ratio (MoO 3 +V 2 O 5 ):P 2 O 5 being greater than 1:1, the total oxide content being 5 to 30% wt. of the catalyst. The cristobalite form of aluminium phosphate is obtained by heating aluminium phosphate at or above 900‹C. The phosphate support preferably contains less than 10% wt alumina. The catalyst is prepared by forming a suspension or slurry of the cristobalite phosphate in an aqueous solution ...

CATALYST FOR GAS PHASE OXIDATION REACTIONS

... 1319132 Oxidation catalysts PROLIZENZ AG 29 Sept 1970 [22 Oct 1969] 46337/70 Heading B1E [Also in Division C2] Catalyst for use in gas phase oxidation reactions comprises porous support material and catalytic components in relative amounts, expressed by weight on an oxide basis, of 1 part MoO 3 , from 1.2 to 2.5 parts V 2 O 5 , from 0.2 to 1.1 parts Bi 2 O 3 , from 0.02 to 0.05 parts P 2 O 5 , from 0.03 to 0.06 parts Na 2 O and from 0.03 to 0.30 parts SiO 2 . The support material which preferably has a surface area of from 100 to 1000 cm2/g, may be material containing a major proportion of alumina and minor proportions of other metal oxides, for example alkali metal and alkaline earth metal oxides. The catalyst may be prepared by a process which comprises impregnating porous support material with a solution or dispersion containing the catalytic components (or precursors thereof), the impregnated support material being dried for 7 to 8 hours at a temperature below 100‹C and thereafter ...

DEVICE FOR MIXING, DRYING AND COATING PULVRIGEM, GRANULAR ONE OR FORMED BULK MATERIAL IN A FLUIDIZED BED

CATALYST FOR PRODUCTION OLEFINISCH UNGE SAETTIGTER OF ALIPHATIC CARBONIC ACIDS

PROCEDURE FOR THE PRODUCTION OF ACRYLIC-SOUR OR METHACRYLSAURE

PROCEDURE FOR THE PRODUCTION OF ACRYLIC ACID OR METHACRYLSAEURE

CATALYSTS, THEIR PRODUCTION AND USE WITH THE OXIDATION OF INSATIATED ALDEHYDES IN THE GASEOUS PHASE.

PROCEDURE FOR THE PRODUCTION OF CATALYST PRODUCTS

HIGH-ACTIVITY CATALYSTS

PROCEDURE FOR THE PRODUCTION OF AROMATIC HALOGENO AMINO CONNECTIONS

Process for regenerating and rejuvenating additive containing catalysts

Method for producing partial (amm)oxidation products of an olefin

IMPROVED PHOSPHOROUS/VANADIUM OXIDATION CATALYST

PROCESS FOR THE REMOVAL OF HEAVY METALS FROM GASES, AND COMPOSITIONS THEREFOR AND THEREWITH

CATALYST AND PROCESS FOR PREPARING MALEIC ANHYDRIDE FROM C4 HYDROCARBONS

A catalyst complex useful for converting normal C4 hydrocarbons to maleic anhydride in vapor phase comprising as components vanadium, phosphorus and an element Me. wherein Me is selected from the group consisting of: i) B at least one element selected from the group consisting of Zn, Cr, U, W, Cd, Ni and Si, ii) a mixture of two or more elements selected from the group consisting of Zn, Cr, Cd, Ni, B and Si, iii) a mixture of U and at least one element selected from the group consisting of Zn, Cr, W, Cd, Ni and Si, and iv) a mixture of W and at least one element selected from the group consisting of Zn, Cr, Cd, Ni and Si.

PROCESS FOR PRODUCING UNSATURATED ALIPHATIC ACIDS AND CATALYSTS THEREFOR

The present invention relates to a catalyst composition consisting of oxide complexes of vanadium, molybdenum and germanium plus an additional oxide selected from the group consisting of iron, nickel, thallium, phosphorus, indium, bismuth and the rare earths and optionally an oxide selected from the group copper, magnesium, manganese, aluminum, titanium, potassium, rubidium, cesium, niobium, tantalum, chromium, tungsten, uranium, cobalt, silver, zinc, tin, gallium, arsenic and antimony. These catalysts are especially useful for producing acrylic acid from acrolein and for producing methacrylic acid from methacrolein.

CHROMIUM-CONTAINING CATALYSTS USEFUL FOR OXIDATION REACTIONS

CHROMIUM-CONTAINING CATALYSTS USEFUL FOR OXIDATION REACTIONS Catalysts containing at least nickel or cobalt, chromium, bismuth and molybdenum have been found to be especially useful for the ammoxidation of olefins, the oxidation of olefins and the oxidative dehydrogenation of olefins.

CATALYST

OXYDEHYDROGENATION OF CERTAIN C4 SATURATED OXYHYDROCARBON COMPOUNDS

PROCESS FOR THE PREPARATION OF ACRYLIC ACID AND METHACRYLIC FROM CORRESPONDING ALDEHYDES

CATALYST FOR SYNTHESIS OF 2- AND 4-PICOLINES, PROCESS FOR PREPARING 2- AND 4-PICOLINE AND PROCESS FOR PREPARING THE CATALYST

The present invention provides a catalyst comprising a composite of a heteropolyacid impregnated on a support for the synthesis of 2- and 4- picolines and a process for the preparation thereof and use thereof for the synthesis of 2- and 4-picolines.

EXHAUST GAS PURIFICATING CATALYST

An exhaust gas purification catalyst that breaking the warring relationsh ip between Hg oxidation and SO2 oxidation as a limit of conventional catalys ts, realizes lowering only the SO2 oxidation ratio while maintaining the Hg oxidation ratio at a high level. There is provided an exhaust gas purificati on catalyst consisting of a composition comprising respective oxides of (i) titanium (Ti), (ii) molybdenum (Mo) and/or tungsten (W), (iii) vanadium (V) and (iv) phosphorus (P) wherein the atomic ratio of Ti : (Mo and/or W) : V i s 85 to 97.5 : 2 to 10 : 0.5 to 10, and wherein the atomic ratio of P/(sum o f Mo and/or W and V) is inthe range of 0.5 to 1.5. Further, there is provide d a method of exhaust gas purification characterized in that an exhaust gas containing nitrogen oxide (NOx) and metallic mercury (Hg) is brought into co ntact with the above catalyst in the presence of ammonia as a reducing agent so as to carry out oxidation of metallic mercury (Hg) and reduction of NOx contained ...

VANADIA-BASED DENOX CATALYSTS AND CATALYST SUPPORTS

A vanadia-based catalytic composition for reduction of nitrogen oxides includes a titania-based support material; vanadia deposited on the titania-based support material; a primary promoter comprising tungsten oxide, molybdenum oxide or combinations thereof; and an amount of phosphate to achieve a mole ratio of phosphorus to vanadium plus molybdenum of about 0.2:1 or greater. A zirconia, tin or manganese oxide can be added to further inhibit the volatility of molybdenum. Results show low SO2 oxidation rates and excellent NOx conversion and/or molybdenum stability.

MULTIMETAL OXIDE COMPOSITIONS

Multimetal oxide compositions having a two-phase structure and comprising molybdenum, hydrogen, one or more of the elements phosphorus, arsenic, boron, germanium and silicon, and copper, and their use for the preparation of methacrylic acid by gas-phase catalytic oxidation.

PROCESS FOR THE TRANSFORMATION OF A VANADIUM/PHOSPHORUS MIXED OXIDE CATALYST PRECURSOR INTO THE ACTIVE CATALYST FOR THE PRODUCTION OF MALEIC ANHYDRIDE

A vanadium/phosphorus mixed oxide catalyst precursor is transformed into the active catalyst for the production of maleic anhydride. The activation takes place in a fluidized bed and includes the steps of initial heating of the precursor: further heating under superatmospheric pressure: isothermal stage at superatmospheric pressure: and finally cooling the activated catalyst obtained. Catalysts activated according to this procedure show high performance in the conversion of non-aromatic hydrocarbons to maleic anhydride.

PROCESS FOR THE TRANSFORMATION OF A VANADIUM/PHOSPHORUS MIXED OXIDE CATALYST PRECURSOR INTO THE ACTIVE CATALYST FOR THE PRODUCTION OF MALEIC ANHYDRIDE

A vanadium/phosphorus mixed oxide catalyst precursor is transformed into the active catalyst for the production of maleic anhydride. The activation takes place in a fluidized bed and includes the steps of initial heating of the precursor; further heating under superatmospheric pressure; isothermal stage at superatmospheric pressure; and finally cooling the activated catalyst obtained. Catalysts activated according to this procedure show high performance in the conversion of non-aromatic hydrocarbons to maleic anhydride.

PROCESS FOR THE PRODUCTION OF AROMATIC HALOGEN-AMINO COMPOUNDS

The present invention relates to a hydrogenation process for the production of aromatic halogen-amino compounds by means of catalytic hydrogenation on noble metal catalysts of corresponding aromatic halonitro compounds, characterised in that a rhodium, ruthenium, iridium, platinum or palladium catalyst which is modified with an inorganic or organi c phosphorus compound with a degree of oxidation of less than V, is used, in the presence of a vanadium compound.

Procédé de préparation d'un catalyseur, catalyseur préparé par ce procédé et utilisation de ce catalyseur

Catalyseur utilisable pour l'oxydation du benzène en anhydride maléique

Procédé de préparation d'un catalyseur pour la fabrication de l'anhydride maléique

Katalysator für die Oxidation von Alkylbenzolen und Verfahren zu seiner Herstellung

Katalysator für Oxydationsreaktionen, Verfahren zu seiner Herstellung und Anwendung

Supported oxidn. catalyst e.g. for maleic anhydride prepn. - contg. cadmium oxide in addn. to molybdenum and vanadium cpds.

... and V cpd -based supported catalyst for gas-phase oxidn. reactions also contains CdO. A pref. catalyst compsn. contains, by wt., 1 pt. MoO3, 1.2-2.5 pts. V2O5, 0.5-2 pts. CdO, 0.02-0.05 pts. P2O5, 0.03-0.06 pts. Na2O and 0.03-0.3 pts SiO2, applied to a porous support, esp. of Al2O3. Catalyst is pref. used for oxidn. of benzene to maleic anhydride with O2, e.g. air-O2. In examples, maleic anhydride yields were 87-95 wt. %, at a 1.23 mole % benzene concn. in air, at 360-410 degrees C, while charging 90-120 g/hr benzene.

Process for the preparation of acrylic acid and methacrylic acid from the corresponding aldehydes

Catalyst composition and use thereof

CONVERSION of a MIXTURE FROM 3-METHYLPYRIDIN AND 3-METHYLPIPERIDIN TO 3-CYANOPYRIDIN.

CATALYST FOR OBTAINING OF FUMARONITRILE AND/OR

METHOD OF PRODUCING TRIMETILGIDRO QUINONE

НЕЦЕОЛИТНЫЕ НАНОКОМПОЗИТНЫЕ МАТЕРИАЛЫ ДЛЯ ТВЕРДЫХ КИСЛОТНЫХ КАТАЛИЗАТОРОВ

Один аспект настоящего изобретения относится к каталитическим соединениям анионмодифицированных оксидов металлов, легированных ионами металлов. Другой аспект настоящего изобретения относится к способу изомеризации алканового или алкильного фрагмента. Международная заявка была опубликована вместе с отчетом о международном поиске.

КАТАЛІЗАТОР І ЙОГО ЗАСТОСУВАННЯ ПРИ ОДЕРЖАННІ ВІНІЛАЦЕТАТУ

Винахід відноситься до каталізаторів для одержання вінілацетату та способів отримання вінілацетату. Зідно з винаходом каталізатор для застосування при одержанні вінілацетату містить каталізаторний носій, паладій, кислоту, щонайменше один каталітичний промотор одержання оцтової кислоти і щонайменше один промотор і/або співпромотор одержання вінілацетату, і спосіб одержання вінілацетату з етилену та кисневмісного газу з використанням такого каталізатора.

OXIDATION CATALYST AND METHOD OF ITS USE

НЕЦЕОЛИТНЫЕ НАНОКОМПОЗИТНЫЕ МАТЕРИАЛЫ ДЛЯ ТВЕРДЫХ КИСЛОТНЫХ КАТАЛИЗАТОРОВ

Один аспект настоящего изобретения относится к каталитическим соединениям анион-модифицированных оксидов металлов, легированных ионами металлов. Другой аспект настоящего изобретения относится к способу изомеризации алканового или алкильного фрагмента.

Process for producing catalysts for the production of methacrylic acid

A trimellitic anhydride used for the production of the catalyst and its preparation and use

Aromatic hydrocarbon ammoxidation fluid bed catalyst, preparation method and use thereof

Methacrylic acid prodn. - from oxidative dehydrogenation of isobutyric acid in the presence of a catalyst and carrier

MATERIAL FOR the ADSORPTION AND the DESORPTION OF NITROGEN OXIDES

CATALYST HAS BASE IN PARTICULAR MOLYBDENUM AND OF PHOSPHORUS FOR the MANUFACTURE Of METHACRYLIC ACID

CATALYST COMPOSITIONS ESPECIALLY USEFUL FOR PREPARATION OF UNSATURATED ACIDS

PROCESS OF TRANSFORMATION CATALYTIC Of UNSATURATED ALDEHYDE ALKANES

Procédé de fabrication d'acide méthacrylique.

La présente invention concerne un procédé de fabrication d'acide méthacrylique. Ce procédé est caractérisé en ce que l'on fait réagir de la métacroléine avec de l'oxygène moléculaire à une température élevée, en phase vapeur, dans un réacteur à lit fixe, en présence d'un catalyseur contenant du molybdène, du phosphore, du vanadium, des métaux alcalins et de l'oxygène et ayant un grand nombre de micro-pores ayant un rayon de pore moyen d'au moins 2 000 angström, ce catalyseur étant préparé en mélangeant entre eux, dans un milieu aqueux, les éléments constitutifs du catalyseur, en concentrant et/ou séchant le mélange résultant de manière à former un solide argileux ou des poudres, en mélangeant le solide argileux ou les poudres ainsi obtenues avec 1 à 10 % en poids, basé sur le poids des poudres sèches ou du solide sec, d'une substance organique, en moulant ou conformant le mélange résultant de manière à former une composition de catalyseur moulé et en calcinant le catalyseur moulé.

Procédé de préparation d'acides carboxyliques aliphatiques

La présente invention concerne un procédé de préparation d'acides carboxyliques aliphatiques par oxydation de cétones cylciques au moyen d'oxygène moléculaire ou d'un gaz en contenant. La présente invention a plus spécifiquement pour objet un procédé de préparation d'acides carboxyliques aliphatiques par oxydation de cétones monocyliques au moyen d'oxygène moléculaire ou d'un gaz en contenant, caractérisé en ce que le catalyseur est choisi parmi les composés du vanadium répondant à l'une quelconque des formules I et II ci-après : H3 + n PM1 2 - n Vn O4 0 , y H2 O VO(Y)m II dans lesquelles : - n est un entier supérieur ou égal à 1 et inférieur ou égal à 6, - M représente un atome de molybdène ou de tungstène, - y est un entier, pouvant être nul, inférieur à 50, - Y représente un groupe acétylacétonate ou un groupement alcoxy comportant de 1 à 10 atomes, - m a pour valeur 2 ou 3.

CATALYST AND A METHOD FOR PREPARING MALEIC ANHYDRIDE STARTING FROM HYDROCARBONS HAVING 4 CARBON ATOMS

Method of phtalic preparation of anhydride

The heteropolyacid catalyst and its use for the preparation of acetic acid oxidation provided ethane

La présente invention a trait à un procédé de préparation d'acide acétique par oxydation ménagée de l'éthane avec une source d'oxygène, en présence d'un catalyseur dont la phase active comprend un hétéropolyacide de formule (I) Ax By PC1 2 - z Vz O4 0 , dans laquelle: - A représente un cation monovalent choisi parmi l'hydrogène, un métal alcalin, ou l'ion ammonium; - B représente VO2 + , VO3 + , un ion d'un métal alcalino-terreux ou d'un métal des colonnes VII A, VIII, I B, IV B et V B de la classification périodique des éléments; - C représente W, Mo; - x = 3 + z - alphay et x positif; avec alpha, dépendant de la charge de l'ion B, soit égal à 2, 3 ou 4; - y varie de 0 à 2 inclus; - z varie de 1 à 3 inclus. L'invention a de même pour objet une composition comprenant du dioxyde de titane en tant que support et un hétéropolyacide de formule (I) précitée. Elle a enfin pour objet un catalyseur dont la phase active est la composition définie ci-dessus.

PROCESS OF CATALYTIC TRANSFORMATION Of UNSATURATED ALDEHYDE ALKANES

PRODUCTION OF MALEIC ANHYDRIDE AND USEFUL CATALYSTS HAS THIS END

PRODUCTION OF MALEIC ANHYDRIDE AND OR MALEIC ACID

Methacrylic acid prodn. - from oxidative dehydrogenation of isobutyric acid in the presence of a catalyst and carrier

Catalyst and catalyst for methacrylic acid production by the use of the catalyst manufacturing method of methacrylic acid

(메트)아크릴산의 제조 방법

... 탄화물의 생성을 억제할 수 있고, (메트)아크릴산의 수율을 향상시킬 수 있는 (메트)아크릴산의 제조 방법을 제공한다. 충전재를 포함하는 충전재층과, 적어도 몰리브데넘 및 바나듐을 포함하는 촉매를 포함하는 촉매층을 구비하는 고정상 반응기를 이용하여, (메트)아크롤레인을 분자상 산소에 의해 기상 접촉 산화시켜 (메트)아크릴산을 제조하는 방법으로서, 상기 충전재가, 상기 기상 접촉 산화의 반응에 적어도 한번 사용된 사용필 충전재를 포함하고, 상기 충전재층 중에는 상기 촉매가, 해당 충전재 전량에 대하여 0.001∼0.15질량% 존재하고 있는 (메트)아크릴산의 제조 방법.

METHOD FOR PRODUCING OR REGENERATING CATALYST FOR THE PRODUCTION OF METHACRYLIC ACID AND PROCESS FOR PREPARING METHACRYLIC ACID

PURPOSE: A method for manufacturing a catalyst for manufacturing metacrylic acid and a method for preparing methacrylic acid are provided. CONSTITUTION: A method for manufacturing a catalyst for preparing methacrylic acid comprises: a step of mixing heteropolic acid compound A of solid phase, which is thermal-treated over 300 °C; a step of mixing aqueous slurry B containing molebdenum; and a step of drying and plasticizing. COPYRIGHT KIPO 2011 ...

APATITE AND METHOD FOR PRODUCTION THEREOF, AND APATITE BASE MATERIAL

PROCESS OF PRODUCTION Of METHACRYLIC ACID AND a CATALYST

Composição catalisadora, e, processos para preparar a mesma, para preparar ácidos carboxìlicos insaturados e para preparar alcanos

Hydrorefining catalyst, preparation method therefor and use thereof

Disclosed is a hydrorefining catalyst, comprising: an inorganic refractory component comprising a first hydrodesulfurization catalytically active component and an oxide mixed therewith which is selected from at least one of alumina, silica, magnesia, calcium oxide, zirconia and titania; a second hydrodesulfurization catalytically active component; and an organic component comprising a carboxylic acid and an optional alcohol. The hydrorefining catalyst shows improved performance in hydrorefining of a distillate oil. Also disclosed are a hydrorefining catalyst system containing the hydrorefining catalyst, a method for preparing the catalyst and the catalyst system, and a method for hydrorefining a distillate oil by using the catalyst or the catalyst system.

TRANSFORMATION D'ALCANES EN ALDEHYDES INSATURES

PROCESS FOR PRODUCING OXIDIZING PHOSPHORUS/ VANADIUM CATALYST USED FOR THE FABRICATION OF DICARBOXYLIC ACIDS AND ANHYDRIDES

Process for regenerating and rejuvenating additive-based catalysts

The present invention pertains to a process for regenerating and rejuvenating a used additive-based catalyst comprising the steps of regenerating the catalyst by contacting it with an oxygen-containing gas at a maximum temperature of 500 DEG C, followed by rejuvenating the catalyst by contacting it with an organic additive, if necessary followed by drying at such a temperature that at least 50% of the additive is maintained in the catalyst. Preferably, the maximum catalyst temperature during the regeneration step is 300-500 DEG C, more preferably 320-475 DEG C, even more preferably 350-425 DEG C. The process according to the invention makes it possible to restore the activity of a used additive-based hydrotreating catalyst to its original level, or even to improve it to above that level.

CATALYST FOR MANUFACTURING UNSATURATED CARBOXYLIC ACID

This catalyst for manufacturing unsaturated carboxylic acid includes an active component expressed by formula (A), wherein a ratio of a diffraction line intensity at 2θ=19.1±0.3°to a diffraction line intensity at 2θ=10.7±0.3° in an X-ray diffraction measurement is at least equal to 0.20 and less than 0.58. (A) Mo10VaPbCucAsdXeOg ...

HIGH ACTIVITY CATALYSTS

Provided are high activity catalysts based upon gamma alumina containing substrates impregnated with one or more catalytically active metals, which catalysts in addition contain a nanocrystalline phase of alumina of a crystallite size at the surface of less than 25 Å. Also provided are processes for preparing such high activity catalysts and various uses thereof.

Recalcined catalyst

A mixed metal oxide, which may be an orthorhombic phase material, is improved as a catalyst for the production of unsaturated carboxylic acids, or unsaturated nitrites, from alkanes, or mixtures of alkanes and alkenes, by: contacting with a liquid contacting member selected from the group consisting of organic acids, alcohols, inorganic acids and hydrogen peroxide to form a contact mixture; recovering insoluble material from the contact mixture; and calcining the recovered insoluble material in a non-oxidizing atmosphere.

Preparation of aliphatic carboxylic acids in the presence of heteropolyacid catalysts

The aliphatic carboxylic acids, e.g., acetic acid, are selectively prepared, even on an industrial scale, by controlledly oxidizing the corresponding alkanes, e.g., ethane, with a source of oxygen, in the presence of a catalytically effective amount of an advantageously supported heteropolyacid catalyst having the formula (I): [Aa Bb ]f [Cc Dd Ee Ox ]f-(I) in which A is at least one monovalent cation selected from among hydrogen, an alkali metal, or the ammonium ion; B is VO2 +, VO3 +, an alkaline earth metal ion, or an ion of a metal of Groups VII A, VIII, I B, IV B and V B of the Periodic Table; C is Mo and/or W; D is phosphorus, arsenic, antimony, silicon, germanium and/or boron; E is vanadium, optionally in combination with at least one metal of Groups V A, VII A and VIII of the Periodic Table or chromium; f=a+αb wherein α depends on the charge of the ion B, which is equal to 2, 3 or 4; c is a number ranging from 5 to 20-e; d is a number ranging from 1 to 5; and e is a number ranging ...

Catalysts for producing unsaturated aliphatic acids

The present invention relates to a process for the production of unsaturated aliphatic acids and the catalyst therefor, by the vapor phase oxidation of the corresponding unsaturated aliphatic aldehydes with molecular oxygen, optionally in the presence of steam, in the presence of an oxidation catalyst consisting of the oxides of the elements molybdenum, vanadium, tungsten and lanthanum, and optionally one or more of the oxides of the elements manganese, iron, copper, aluminum, cobalt, nickel, phosphorus, zinc, bismuth, silver, cadmium, niobium, arsenic, chromium, the alkali and the alkaline earth elements.

Catalyst for Removing Nitrogen Oxides

The present invention is to provide a catalyst for removing nitrogen oxides which is capable of keeping sufficient denitrification performance, i.e., a high removal rate of nitrogen oxides in exhaust gas having a high NO 2 content especially under conditions where the ratio of NO 2 /NO in exhaust gas is 1 or higher, a catalyst molded product therefor, and an exhaust gas treating method. The catalyst is designed for removing nitrogen oxides, which is used to denitrify exhaust gas containing nitrogen oxides having a high NO 2 content, which comprises: at least one kind of oxide selected from the group consisting of copper oxides, chromium oxides, and iron oxides as a component for reducing NO 2 to NO; and which further comprises: at least one kind of titanium oxide; at least one kind of tungsten oxide; and at least one kind of vanadium oxide as components for reducing NO to N 2 .

Process For Producing Catalyst For Methacrylic Acid Production And Process For Producing Methacrylic Acid

An object of the present invention is to provide a process for stably producing a catalyst for methacrylic acid production exhibiting high activity and high performance. The process for producing a catalyst for methacrylic acid production of the invention is characterized in that the water content of the catalyst ingredient powder for use in molding, temperature and humidity of a molding step, humidity and temperature of a baking step are individually controlled in the case where molding is performed by a coating method using an Mo—V—P—Cu-based hetero polyacid as an active ingredient and water or an alcohol and/or an aqueous solution of an alcohol as a binder.

Catalyst and method for partially oxidizing hydrocarbons

The invention relates to a catalyst for partially oxidizing hydrocarbons in the gas phase, containing a multi-metal oxide of the general formula (I), AgaMObVcMdOe.f H2O (I), wherein M stands for at least one element selected from among Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, B, Al, Ga, In, Si, Sn, Pb, P, Sb, Bi, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, W, Mn, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt, Cu, Au, Zn, Cd, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and U, a has a value of 0.5 to 1.5, b has a value of 0.5 to 1.5, c has a value of 0.5 to 1.5, a+b+c has the value 3, d has a value of less than 1, e means a number that is determined by the valence and frequency of the elements other than oxygen in the formula (I), f has a value of 0 to 20, which multi-metal oxide exists in a crystal structure, the X-ray powder diffractogram of which is characterized by diffraction reflections at a minimum of 5 lattice distances selected from among d=4.53, 3.38, 3.32, 3.23, 2.88, 2.57, 2.39, 2.26, 1.83, 1.77 AA (+−0.04 AA).

Processes and systems for producing syngas from methane

Embodiments of a process for producing syngas comprising hydrogen and carbon monoxide from a gas stream comprising methane are provided. The process comprises the step of contacting the gas stream with a two-component catalyst system comprising an apatite component and a perovskite component at reaction conditions effective to convert the methane to the syngas.

Catalyst preparation method

A method for preparing a catalyst comprising (i) preparing a calcined shaped calcium aluminate catalyst support, (ii) treating the calcined shaped calcium aluminate support with water, and then drying the support, (iii) impregnating the dried support with a solution containing one or more metal compounds and drying the impregnated support, (iv) calcining the dried impregnated support, to form metal oxide on the surface of the support and (v) optionally repeating steps (ii), (iii) and (iv) on the metal oxide coated support. The method provides an eggshell catalyst in which the metal oxide is concentrated in an outer layer on the support.

Mixed metal oxide catalyst for decomposition of nitrogen oxides

The present invention relates to a mixed metal oxide catalyst in which a hydrotalcite precursor containing an alkali metal is impregnated or intercalated with a nonprecious metal, a method of manufacturing the same, and a method of decomposing nitrogen oxide using the mixed metal oxide catalyst. The mixed metal oxide catalyst has excellent catalytic activity because it can decompose NO x , N 2 O or a mixture thereof even at low temperature, and is economical because it does not use a precious metal.

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.

Catalyst for n-butane oxidation to maleic anhydride

A process for the preparation of a promoted VPO catalyst, wherein the catalyst comprises the mixed oxides of vanadium and phosphorus and wherein the catalyst is promoted with at least one of niobium, cobalt, iron, zinc, molybdenum or titanium, said process comprising the steps of (i) preparing a VPO catalyst comprising vanadyl pyrophosphate as the major component and containing less than 5 wt % of vanadyl phosphate, (ii) contacting the VPO catalyst with a solution comprising a metal source compound of at least one metal selected from the group consisting of niobium, cobalt, iron, zinc, molybdenum or titanium to form a metal impregnated VPO catalyst, and (iii) drying the metal impregnated VPO catalyst to form the promoted VPO catalyst. In one embodiment, a niobium promoted VPO catalyst is prepared.

NOVEL MIXED OXIDE MATERIALS FOR THE SELECTIVE CATALYTIC REDUCTION OF NITROGEN OXIDES IN EXHAUST GASES

The invention relates to the use of mixed oxides made of cerium oxide, zirconium oxide, rare earth sesquioxide and niobium oxide as catalytically active materials for the selective catalytic reduction of nitrogen oxides with ammonia or a compound that can decompose to form ammonia in the exhaust gas of internal combustion engines in motor vehicles that are predominantly leanly operated, and to compositions or catalysts which contain said mixed oxides in combination with zeolite compounds and/or zeolite-like compounds and are suitable for the denitrogenation of lean motor vehicle exhaust gases in all essential operating states. 1. A process for the selective catalytic reduction of nitrogen oxides , comprising reducing nitrogen oxides with a catalytically active mixed oxide consisting of cerium oxide , niobium oxide , rare earth metal sesquioxide and zirconium oxide.3. The process as claimed in claim 1 , wherein the mixed oxide is present in a catalytically active coating applied to a catalytically inert support body which together with the coating forms a catalyst.4. A catalytically active composition comprising (i) a mixed oxide consisting of cerium oxide claim 1 , niobium oxide claim 1 , rare earth metal sesquioxide and zirconium oxide and (ii) a zeolite compound and/or a zeolite-like compound containing exchangeable cations selected from the group consisting of H claim 1 , NH claim 1 , Fe claim 1 , Fe claim 1 , Cu claim 1 , Cu claim 1 , Ag and mixtures thereof.5. A catalyst comprising (i) a mixed oxide consisting of cerium oxide claim 1 , niobium oxide claim 1 , rare earth metal sesquioxide and zirconium oxide and (ii) a zeolite compound and/or a zeolite-like compound containing exchangeable cations selected from the group consisting of H claim 1 , NH claim 1 , Fe claim 1 , Fe claim 1 , Cu claim 1 , Cu claim 1 , Ag and mixtures thereof.6. The catalyst as claimed in claim 5 , wherein the zeolite compound and/or the zeolite-like compound is selected from the group ...

Silver vanadium phosphates

The invention relates to novel silver vanadium phosphates, catalysts based on these silver vanadium phosphates and the use of these catalysts for carrying out organic reactions in the gas phase.

EXHAUST GAS PURIFYING CATALYST

To overcome the problem of a conventional catalyst and to provide an exhaust gas purifying catalyst that meets the requirement concerning Hg oxidation activity and SOoxidation activity; i.e., an exhaust gas purifying catalyst which specifically reduces percent SOoxidation, while maintaining percent Hg oxidation at a high level. 1. (canceled)2. An exhaust gas purifying method comprising exposing an exhaust gas containing a nitrogen oxide (NO) and metallic mercury (Hg) to a catalyst in the presence of ammonia as a reducing agent , to thereby perform reduction of NOcontained in the exhaust gas and oxidation of metallic mercury (Hg) contained in the exhaust gas;wherein the catalyst comprises a composition containing oxides of (i) titanium (Ti), (ii) molybdenum (Mo) and/or tungsten (W), (iii) vanadium (V), and (iv) phosphorus (P); and wherein the catalyst contains Ti, Mo and/or W, and V in atomic proportions of 85 to 97.5:2 to 10:0.5 to 10, and has an atomic ratio of P/(sum of V and Mo and/or W) of 0.5 to 1.5.3. (canceled)4. (canceled)5. (canceled)6. The method of claim 2 , wherein component (ii) consists of molybdenum (Mo).7. The method of claim 2 , wherein component (ii) consists of tungsten (W).8. The method of claim 2 , wherein component (ii) consists of molybdenum (Mo) and tungsten (W).9. The method of claim 2 , wherein the atomic ratio of P/(sum of V and Mo and/or W) of 0.7 to 1.2.10. The method of claim 2 , wherein the atomic ratio of P/(sum of V and Mo and/or W) of about 1.11. An exhaust gas purifying method comprising exposing an exhaust gas containing a nitrogen oxide (NO) and metallic mercury (Hg) to a catalyst in the presence of ammonia as a reducing agent claim 2 , to thereby perform reduction of NOcontained in the exhaust gas and oxidation of metallic mercury (Hg) contained in the exhaust gas;wherein the catalyst comprises a composition consisting of oxides of (i) titanium (Ti), (ii) molybdenum (Mo) and/or tungsten (W), (iii) vanadium (V), and (iv) ...

Gas phase oxidation catalyst with low charge transport activation energy

A catalyst for the gas phase oxidation of organic hydrocarbons comprises a multielement oxide which comprises at least one transition meal such as vanadium, wherein the catalyst has a charge transport activation energy E c at a temperature of 375 to 425° C. of less than 0 kJ/mol. The catalyst serves for preparation of maleic anhydride.

CATALYST FOR PRODUCING N-SUBSTITUTED CARBAMATES, AND THE PREPARATION AND APPLICATION OF THE SAME

The present invention relates to a novel catalyst for producing N-substituted carbamates, the preparation of the catalyst and an improved method for producing N-substituted carbamates from these novel catalysts. The active component of the catalyst is a heteropoly acid and the catalyst support comprises a metal oxide or a metalloid oxide. The catalyst can be used to promote the reaction of carbamate and amine, thereby generating N-substituted carbamates with high yield. In the presence of the catalyst, the reaction conditions are relatively mild, the catalytic activity and selectivity of the reaction are high, and the reaction time is relatively short. Furthermore, the catalyst can be conveniently separated from the reaction system and recycled, therefore, the catalyst can be used to facilitate the further scale-up test and commercial application. 112-. (canceled)13. A catalyst for preparing a N-substituted carbamate , wherein the active component of the catalyst comprises a heteropoly acid and the component of the catalyst support comprise a metal oxide or metalloid oxide.14. The catalyst of claim 13 , wherein the heteropoly acid is a Keggin type heteropoly acid.15. The catalyst of claim 14 , wherein the heteropoly acid is selected from the group consisting of HPWO.nHO claim 14 , HPMoO.nHO claim 14 , HSiWO.nHO and HSiMoO.nHO.16. The catalyst of claim 13 , wherein the catalyst support component comprising a metal oxide or a metalloid oxide is selected from the group consisting of zirconium oxide claim 13 , titanium oxide claim 13 , zinc oxide claim 13 , silicon oxide claim 13 , magnesium oxide claim 13 , calcium oxide claim 13 , tin oxide claim 13 , barium oxide claim 13 , cerium oxide claim 13 , lanthanum oxide claim 13 , vanadium pentoxide claim 13 , aluminium oxide and mixtures thereof.17. The catalyst of claim 16 , wherein the metal oxide is selected from the group consisting of a vanadium pentoxide claim 16 , an aluminium oxide and mixtures thereof.18. The ...

Catalyst for Producing Acrylic Acids and Acrylates

The invention is to a process for producing an acrylate product. The process includes the steps of contacting an alkanoic acid and an alkylenating agent over a catalyst composition under conditions effective to produce the acrylate product. The catalyst composition comprises vanadium, bismuth and titanium. Preferably, the catalyst comprises 0.3 wt % to 30 wt % vanadium, 0.1 wt % to 69 wt % bismuth and 0.1 wt % to 61 wt % tungsten, in an active phase. 1. A process for producing an acrylate product , the process comprising the steps of:contacting an alkanoic acid and an alkylenating agent over a catalyst under conditions effective to produce the acrylate product,wherein the catalyst comprises vanadium, bismuth, and tungsten.2. The process of claim 1 , wherein the alkylenating agent comprises a methylenating agent.3. The process of claim 1 , wherein the alkanoic acid comprises acetic acid.4. The process of claim 1 , wherein the molar ratio of alkanoic acid to alkylenating agent is at least 0.50:1.5. The process of claim 1 , wherein the overall alkanoic acid conversion is at least 15 mol %.6. The process of claim 1 , wherein the acrylic acid selectivity is at least 30%.7. The process of claim 1 , wherein the space time yield of the combination of acrylic acid and acrylates is at least 50 grams per liter of catalyst per hour.8. The process of claim 1 , wherein the yield of acrylic acid based on alkanoic acid conversion is at least 20%.9. A process for producing a catalyst composition claim 1 , the process comprising the steps of:contacting a bismuth salt, a tungsten salt, and a vanadium precursor solution to form a wet catalyst composition; anddrying the catalyst composition to form a dried catalyst composition comprising vanadium, bismuth, and tungsten.10. The process of claim 9 , further comprising the step of:mixing the vanadium precursor and a reductant solution to form the vanadium precursor solution.11. The process of claim 9 , wherein the contacting comprises: ...

EXHAUST GAS PURIFICATION CATALYST SUPPRESSING INFLUENCE OF IRON COMPOUND

An exhaust gas purification catalyst contains titanium oxide as a main component and an oxide of one element or two or more elements selected from the group consisting of tungsten (W), molybdenum (Mo), and vanadium (V) as an active component, wherein the exhaust gas purification catalyst contains phosphoric acid or a water soluble phosphoric acid compound so that the atomic ratio of phosphorus (P) to a catalytically active component represented by the following formula is more than 0 and 1.0 or less; P/catalytically active component (atomic ratio)=number of moles of P/(number of moles of W+number of moles of Mo+number of moles of V). 1. A method for purifying an exhaust gas , comprising:contacting the exhaust gas with an exhaust gas purification catalyst;wherein the exhaust gas purification catalyst comprises titanium oxide as a main component and an oxide of one element or two or more elements selected from the group consisting of tungsten (W), molybdenum (Mo), and vanadium (V) as an active component;wherein the active component is reacted with phosphoric acid or a water soluble phosphoric acid compound to form a complex thereof so that the atomic ratio of phosphorus (P) to a catalytically active component represented by the following formula is 0.2 to 1.0:P/catalytically active component (Atomic ratio)=number of moles of P/(number of moles of W+number of moles of Mo+number of moles of V);wherein the exhaust gas contains nitrogen oxide and elemental mercury; andwherein the nitrogen oxide is reduced by ammonia.2. The method of claim 1 , wherein the exhaust gas purification catalyst is supported on a metal substrate.3. The method of claim 1 , wherein the one element or two or more elements consist of tungsten (W).4. The method of claim 1 , wherein the one element or two or more elements consist of molybdenum (Mo).5. The method of claim 1 , wherein the one element or two or more elements consist of vanadium (V).6. The method of claim 1 , wherein the one element or two ...

Process for non-oxidative dehydrogenation of alkane

The invention relates to a process for producing an alkene by non-oxidative dehydrogenation of an alkane, comprising contacting a feed stream comprising the alkane with a catalyst composition comprising an unsupported catalyst comprising ZrV 2 O 7 at a temperature of 400 to 600° C.

Ammonia oxidation catalyst having low n2o by-product formation

The present invention relates to a catalytic composition comprising a noble metal on an acidic tungsten-containing mixed oxide, a method for producing the catalytic composition and the use of the catalytic composition as oxidation catalyst. The invention further relates to a catalyst shaped body, which has the catalytic composition on a support, a washcoat containing the catalytic composition according to the invention and the use of the washcoat to produce a coated catalyst shaped body.

SPHERICAL MATERIAL BASED ON HETEROPOLYANIONS TRAPPED IN A MESOSTRUCTURED OXIDE MATRIX AND USE THEREOF AS CATALYST IN HYDROCARBON REFINING PROCESSES

Inorganic material having at least two elementary spherical particles, each of said spherical metallic particles: a polyoxometallate with formula (XMOH), where H is hydrogen, O is oxygen, X is phosphorus, silicon, boron, nickel or cobalt and M is one or more vanadium, niobium, tantalum, molybdenum, tungsten, iron, copper, zinc, cobalt and nickel, x is 0, 1, 2 or 4, m is 5, 6, 7, 8, 9, 10, 11, 12 or 18, y is 17 to 72, h is 0 to 12 and q is 1 to 20. 1. An inorganic material constituted by at least two elementary spherical particles , each of said spherical particles comprising metallic particles in the form of a polyoxometallate with formula (XMOH) , where H is a hydrogen atom , O is an oxygen atom , X is an element selected from phosphorus , silicon , boron , nickel and cobalt and M is one or more elements selected from vanadium , niobium , tantalum , molybdenum , tungsten , iron , copper , zinc , cobalt and nickel , x being equal to 0 , 1 , 2 , or 4 , m being equal to 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 or 18 , y being in the range 17 to 72 , h being in the range 0 to 12 and q being in the range 1 to 20 (y , h and q being whole numbers) , said metallic particles being present within a mesostructured matrix based on an oxide of at least one element Y selected from the group constituted by silicon , aluminium , titanium , tungsten , zirconium , gallium , germanium , tin , antimony , lead , vanadium , iron , manganese , hafnium , niobium , tantalum , yttrium , cerium , gadolinium , europium and neodymium and a mixture of at least two of these elements , said matrix having pores with a diameter in the range 1.5 to 50 nm and having amorphous walls with a thickness in the range 1 to 30 nm , said elementary spherical particles having a maximum diameter of 200 microns.2. A material according to claim 1 , in which said mesostructured matrix is constituted by aluminium oxide claim 1 , silicon oxide or a mixture of silicon oxide and aluminium oxide.3. A material according to ...

Catalyst For Reducing Selectively Saturated Aldehyde And A Process For Preparing The Catalyst

[Problem] Catalyst for use in selective reduction of propionaldehyde in acrolein and/or acrylic acid and/or acrylonitrile containing propionaldehyde and/or propionic acid and/or propionitrile at low concentration. In particular, a novel catalyst for selectively reducing propionaldehyde from acrolein containing the propionaldehyde. 1. Catalyst for use in selective reduction of propionaldehyde in acrolein containing the propionaldehyde , characterized in that the catalyst contains Mo as an indispensable component , and at least one element selected from a group comprising P , Si , W , Ti , Zr , V , Nb , Ta , Cr , Mn , Fe , Co , Ni , Cu , Zn , Ga , In , Tl , Sn , Ag , As , Ge , B , Bi , La , Ba , Sb , Te , Ce , Pb , Mg , K , Rb , Cs and Al.2. The catalyst of claim 1 , wherein the catalyst contains Mo as an indispensable component claim 1 , and at least one element selected from a group comprising P claim 1 , Si claim 1 , W claim 1 , Ti claim 1 , Cr claim 1 , Mn claim 1 , Fe claim 1 , Co claim 1 , Ni claim 1 , Zn claim 1 , Ga claim 1 , Sn claim 1 , Bi claim 1 , Sb claim 1 , Ce claim 1 , Mg claim 1 , Cs and K.3. The catalyst of claim 1 , wherein the catalyst comprises a compound represented by the general formula (1):{'br': None, 'sub': a', 'b', 'o', 'd', 'e, 'AXYZO\u2003\u2003(1)'} A is at least one cation selected from elements belonging to the Group 1 to Group 16 in the Periodic Table,', 'X is P or Si,', 'Y is Mo,', 'Z is at least one element selected from a group comprising W, Ti, Zr, V, Nb, Ta, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, In, Tl, Sn, Ag, As, Ge, B, Bi, La, Ba, Sb, Te, Ce, Pb, Mg, K, Rb, Cs and Al,', 'a, b, c and d in the formula each satisfy respective range of 0≦a<9, 0≦b≦1, 0 Подробнее

CATALYST SUPPORT MATERIALS, CATALYSTS, METHODS OF MAKING THEM AND USES THEREOF

Catalyst support materials, catalysts, methods of making such and uses thereof are described. Methods of making catalyst support material include combining anatase titania slurry with i) a low molecular weight form of silica; and ii) a source of Mo to form a TiO—MoO—SiOmixture. Catalyst support material include from about 86% to about 94% weight anatase titanium dioxide; from about 0.1% to about 10% weight MoO; and from about 0.1% to about 10% weight SiO. Low molecular weight forms of silica include forms of silica having a volume weighted median size of less than 4 nm and average molecular weight of less than 44,000, either individually or in a combination of two or more thereof. Catalyst include such catalyst support material with from about 0.1 to about 3% weight of VOand optionally from about 0.01% to about 2.5% weight P. 1. A method of making a catalyst support material comprising:a. providing an anatase titania slurry; and{'sub': 2', '3', '2, 'b. combining the anatase titania slurry with i) low molecular weight form of silica and ii) a source of Mo to form a TiO— MoO—SiOmixture, wherein'}the low molecular weight form of silica comprises a member selected from a group consisting of forms of silica having a volume weighted median size of less than 4 nm and average molecular weight of less than 44,000, and combinations thereof.2. The method of claim 1 , further comprising providing an amount of phosphate to the anatase titania slurry.3. The method of claim 2 , further comprising providing the phosphate after providing i) the low molecular weight form of silica and ii) a source of Mo.4. The method of claim 1 , comprising providing the source of Mo or low molecular weight form of silica to the anatase titania slurry by ion exchange resin.5. The method of claim 1 , comprising providing the low molecular weight form of silica and the source of Mo to the anatase titania slurry sequentially.6. The method of claim 5 , comprising providing the low molecular weight form ...

AMMOXIDATION CATALYST FOR PROPYLENE, MANUFACTURING METHOD OF THE SAME CATALYST, AMMOXIDATION METHOD USING THE SAME CATALYST

There are provided an ammoxidation catalyst for propylene, a manufacturing method of the same, and an ammoxidation method of propylene using the same. Specifically, according to one embodiment of the invention, there is provided an ammoxidation catalyst for propylene that not only exhibits high activity to ammoxidation of propylene, but also has high amorphous phase content. 1. An ammoxidation catalyst for propylene comprising metal oxide represented by the following Chemical Formula 1 ,wherein a first peak having intensity of A appears in the 2θrange of 26.3±0.5°, and a second peak having intensity of B appears in the 2θrange of 28.3±0.5° in X ray diffraction analysis by CuKα, and {'br': None, 'sub': x', 'a', 'b', 'c', 'd', 'e', 'f', 'y, 'MoBiFeABCDO\u2003\u2003[Chemical Formula 1]'}, 'a intensity ratio(AB) of the first peak to the second peak is 1.5 or morein the Chemical Formula 1,A and B are different from each other, and each independently, are one or more elements of Ni, Mn, Co, Zn, Mg, Ca, and Ba,C is one or more elements of Li, Na, K, Rb, and Cs,D is one or more elements of Cr, W, B, Al, Ca, and V,a to f, x, and y are respectively mole fractions of each atom or atomic group,a is 0.1 to 7, b is 0.1 to 7, provided that the sum of a and b is 0.1 to 7,c is 0.1 to 10, d is 0.01 to 5, e is 0.1 to 10, f is 0 to 10,x is 11 to 14, y is a value determined by each oxidation number of Mo, Bi, Fe, A, B, C, and D.2. The ammoxidation catalyst for propylene according to claim 1 , wherein the intensity ratio(AB) is 3.0 or more.3. The ammoxidation catalyst for propylene according to claim 1 , wherein the catalyst has BET specific surface area of 50 to 300 m/g.4. The ammoxidation catalyst for propylene according to claim 1 , wherein a pore volume in the catalyst is 0.3 to 1.3 cm/g.5. The ammoxidation catalyst for propylene according to claim 1 , wherein the metal oxide is represented by Chemical Formula 1-1:{'br': None, 'sub': x', 'a', 'b', 'c', 'd', 'e', 'y, 'MoBiFeNiCoKO\ ...

PEROVSKITE WITH AN OVLERLAYER SCR COMPONENT AS AN AMMONIA OXIDATION CATALYST AND A SYSTEM FOR EXHAUST EMISSION CONTROL ON DIESEL ENGINES

An ammonia slip control catalyst having a layer containing perovskite and a separate layer containing an SCR catalyst is described. The ammonia slip catalyst can have two stacked layers, with the top overlayer containing an SCR catalyst, and the bottom layer containing a perovskite. The ammonia slip catalyst can alternatively be arranged in sequential layers, with the SCR catalyst being upstream in the flow of exhaust gas relative to the perovskite. A system comprising the ammonia slip catalyst upstream of a PGM-containing ammonia oxidation catalyst and methods of using the system are described. The system allows for high ammonia oxidation with good nitrogen selectivity. Methods of making and using the ammonia slip catalyst to reduce ammonia slip and selectively convert ammonia to Nare described. 1. An ammonia slip catalyst comprising a first layer comprising an SCR catalyst and a second layer comprising a perovskite , wherein the first layer is arranged to contact an exhaust gas before the second layer.2. The ammonia slip catalyst of claim 1 , wherein the first layer is an overlayer located over the second layer.3. The ammonia slip catalyst of claim 1 , wherein the first layer is supported on a first support material and the second layer is supported on a second support material.4. The ammonia slip catalyst of claim 1 , wherein the SCR catalyst comprises an oxide of a base metal claim 1 , a molecular sieve claim 1 , a metal exchanged molecular sieve or a mixture thereof.5. The ammonia slip catalyst of claim 4 , wherein the base metal is selected from the group consisting of cerium (Ce) claim 4 , chromium (Cr) claim 4 , cobalt (Co) claim 4 , copper (Cu) claim 4 , iron (Fe) claim 4 , manganese (Mn) claim 4 , molybdenum (Mo) claim 4 , nickel (Ni) claim 4 , tungsten (W) and vanadium (V) claim 4 , and mixtures thereof.6. The ammonia slip catalyst of claim 1 , wherein the SCR catalyst comprises a metal exchanged molecular sieve and the metal is selected from the group ...

METAL ALLOY/OXIDE, METAL ALLOY/NITRIDE COMPOSITE CATALYST FOR AMMONIA DECOMPOSITION

The present invention discloses a series of ammonia decomposition catalysts, the method of making such catalysts and the use of such catalysts. The said catalysts are made of composite metal or metal alloys supported on composite oxides or nitrides as the catalyst supports. The catalysts are useful in ammonia decomposition at various temperatures and pressures, including temperatures below 500° C. and pressures up to 30 atm. 1. A catalyst , comprising: 'cobalt, iron, chromium, manganese, and vanadium;', 'a first element comprising at least one of 'nickel, copper, and niobium;', 'a second element comprising at least one ofa support; anda promoter; a bimetallic nanocluster; and', 'an alloy;, 'wherein the first element and the second element are combined to form at least one of a first mixture, the first mixture being at least one of a mixed oxide;', 'a nitride; and', 'a perovskite;, 'wherein the first mixture is supported on the support, the support comprising at least one ofwherein the promoter is an alkali metal.2. The catalyst of claim 1 , wherein the support comprises an alkaline earth metal.3. The catalyst of claim 2 , wherein the alkaline earth metal comprises at least one of magnesium claim 2 , calcium claim 2 , strontium claim 2 , and barium.4. The catalyst of claim 2 , wherein the support further comprises a rare earth metal.5. The catalyst of claim 4 , wherein the rare earth metal comprises at least one of cerium claim 4 , lanthanum claim 4 , praseodymium.6. The catalyst of claim 2 , wherein the support further comprises at least one of aluminum claim 2 , zirconium claim 2 , molybdenum claim 2 , and titanium.7. The catalyst of claim 1 , wherein the alkali metal of the promoter is at least one of potassium claim 1 , cesium claim 1 , sodium claim 1 , lithium claim 1 , and rubidium.8. The catalyst of claim 1 , wherein:the first mixture is the bimetallic nanocluster; an alkaline earth metal and a rare earth metal; and', 'at least one of aluminum, zirconium, ...

Process for Limiting Self Heating of Activated Catalysts

The invention provides a process for limiting self heating of activated particle catalysts wherein the catalyst particles are placed in motion inside a hot gas flow that passes through them and a liquid composition containing one or several film forming polymer(s) is pulverized onto the particles in motion until a protective layer is obtained on the surface of said particles containing said film forming polymer and having an average thickness of less than or equal to 20 μm. The invention also provides the use of this process to reduce the quantities of toxic gases that may be emitted by the activated catalysts, as well as an activated catalyst for the hydroconversion of hydrocarbons covered with a continuous protective layer that are obtained by this process. 1. A process for limiting self heating of activated particle catalysts , in which the catalyst particles are placed in motion within a hot gas flow passing through them , and a liquid composition containing one or more film forming polymer(s) is pulverized onto the moving particles until on the surface of said particles a protective layer containing said film forming polymer is obtained , that has an average thickness lower than or equal to 20 μm.2. The process according to claim 1 , characterized in that the liquid composition is a solution or a dispersion of the film forming polymer(s) in a solvent claim 1 , and contains preferably from 0.1 to 50% by weight of film forming polymer claim 1 , more preferably from 0.5 to 25% by weight claim 1 , and even more preferably from 1 to 10% by weight of film forming polymer claim 1 , with respect to the total weight of the composition.3. The process according to claim 1 , characterized in that it is implemented in a perforated drum in which the catalyst particles are put in motion claim 1 , with a hot gas flow passing continuously through said perforated drum.4. The process according to claim 1 , characterized in that it is implemented by placing catalyst particles in a ...

Catalytic oxidation method and method for producing conjugated diene

An object of the present invention is to suppress performance deterioration of a molybdenum composite oxide-based catalyst at the time of performing gas-phase catalytic partial oxidation with molecular oxygen by using a tubular reactor. The present invention relates to a catalytic oxidation method using a tubular reactor in which a Mo compound layer containing a Mo compound and a composite oxide catalyst layer containing a Mo composite oxide catalyst are arranged in this order from a reaction raw material supply port side and under a flow of a mixed gas containing 75 vol % of air and 25 vol % of water vapor at 440° C., a Mo sublimation amount of the Mo compound is larger than a Mo sublimation amount of the Mo composite oxide catalyst under the same conditions.

SELECTIVE AMMOXIDATION CATALYSTS

A catalytic composition useful for the conversion of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile, and mixtures thereof. The catalytic composition comprises a complex of metal oxides comprising bismuth, molybdenum, iron, cerium and other promoters, with a desirable composition. 120-. (canceled)22. The catalytic composition of claim 21 , wherein 0.3≤i/(i+j+k+l).23. The catalytic composition of claim 21 , wherein 0.5≤i/(i+j+k+l).24. The catalytic composition of claim 21 , wherein 0.7≤i/(i+j+k+l).25. The catalytic composition of claim 21 , wherein z=d+i+j+k+l and 0.3≤(a+h)/z≤1.26. The catalytic composition of claim 21 , wherein 0.65≤a/h<1.5.27. The catalytic composition of claim 21 , wherein 0.7≤a/h<1.5.28. The catalytic composition of claim 21 , wherein 0.8≤a/h<1.5.29. The catalytic composition of claim 21 , wherein 0.90≤a/h≤1.2.30. The catalytic composition of claim 21 , wherein 0.8≤h/b≤5.31. The catalytic composition of claim 21 , wherein 1.2≤h/b≤5.32. The catalytic composition of claim 21 , wherein said catalyst composition comprises MMoOcells with a cell volume defined as β; wherein 625 {acute over (Å)}≤β≤630 {acute over (Å)}. The present invention relates to an improved catalyst for use in the ammoxidation of an unsaturated hydrocarbon to the corresponding unsaturated nitrile. In particular, the present invention is directed to an improved catalytic composition for the ammoxidation of propylene and/or isobutylene to acrylonitrile and/or methacrylonitrile, respectively, wherein said catalyst comprises a complex of metal oxides comprising bismuth, molybdenum, iron, cerium and other promoters and wherein said catalyst is characterized by ratio of bismuth to cerium contained in the catalyst.Catalysts containing oxides of iron, bismuth and molybdenum, promoted with suitable elements, have long been used for the conversion of propylene and/or isobutylene at elevated temperatures in the ...

GAS CLEAN-UP FOR ALKANE OXIDATIVE DEHYDROGENATION EFFLUENT

The invention relates to a process for the production of an alkene by alkane oxidative dehydrogenation, comprising: (a) subjecting a stream comprising an alkane to oxidative dehydrogenation conditions, comprising contacting the alkane with oxygen in the presence of a catalyst comprising a mixed metal oxide, resulting in a stream comprising alkene, unconverted alkane, water, carbon dioxide, unconverted oxygen, carbon monoxide and optionally an alkyne; (b) removing water from at least part of the stream comprising alkene, unconverted alkane, water, carbon dioxide, unconverted oxygen, carbon monoxide and optionally an alkyne resulting from step (a), resulting in a stream comprising alkene, unconverted alkane, carbon dioxide, unconverted oxygen, carbon monoxide and optionally alkyne; (c) removing unconverted oxygen, carbon monoxide and optionally alkyne from at least part of the stream comprising alkene, unconverted alkane, carbon dioxide, unconverted oxygen, carbon monoxide and optionally alkyne resulting from step (b), wherein carbon monoxide and optionally alkyne are oxidized into carbon dioxide, resulting in a stream comprising alkene, unconverted alkane and carbon dioxide; (d) optionally removing carbon dioxide from at least part of the stream comprising alkene, unconverted alkane in and carbon dioxide resulting from step (c), resulting in a stream comprising alkene and unconverted alkane; (e) optionally separating at least part of the stream comprising alkene and unconverted alkane resulting from step (d), into a stream comprising alkene and a stream comprising unconverted alkane; (f) optionally recycling unconverted alkane from at least part of the stream comprising unconverted alkane resulting from step (e), to step (a). 1. A process for the production of an alkene by alkane oxidative dehydrogenation , comprising:(a) subjecting a stream comprising an alkane to oxidative dehydrogenation conditions, comprising contacting the alkane with oxygen in the presence of a ...

METHOD OF PREPARATION OF PEROVSKITE CATALYST

A preparation method of perovskite catalyst, represented by the following Chemical Formula 1: LaAgMnO(0.1≦x≦0.9), includes the steps of 1) preparing a metal precursor solution including a lanthanum metal precursor, a manganese metal precursor and a silver metal precursor, 2) adding maleic or citric acid to the metal precursor solution, 3) drying the mixture separately several times with sequentially elevating the temperature in the range of 160 to 210° C., and 4) calcining the dried mixture at 600 to 900° C. for 3 hours to 7 hours. 1. A preparation method of perovskite catalyst , represented by the following Chemical Formula 1: LaAgMnO(0.1≦x≦0.9) , including the steps of:1) preparing a metal precursor solution including a lanthanum metal precursor, a manganese metal precursor and a silver metal precursor;2) adding citric acid to the metal precursor solution;3) drying the mixture separately several times while sequentially elevating the temperature in the range of 160 to 210° C.; and4) calcining the dried mixture at 600 to 900° C. for 3 hours to 7 hours.2. The preparation method according to claim 1 , wherein the lanthanum metal precursor is La(NO).6HO.3. The preparation method according to claim 1 , wherein the manganese metal precursor is Mn(NO).6HO.4. The preparation method according to claim 1 , wherein the silver metal precursor is AgNO.5. The preparation method according to claim 1 , wherein the solvent of the metal precursor solution is distilled water.6. The preparation method according to claim 1 , wherein the amount of citric acid added is 0.2 to 2.0 moles per the total mole of lanthanum claim 1 , manganese and silver in the metal precursor solution.7. The preparation method according to claim 1 , further including the step of stirring the solution at 70 to 90° C. for 6 to 10 hours and drying the same at 100 to 120° C. for 8 to 14 hours claim 1 , between step 2) and step 3).8. The preparation method according to claim 1 , wherein step 3) is carried out by ...

CATALYST COMPOSITIONS AND PROCESS FOR DIRECT PRODUCTION OF HYDROGEN CYANIDE IN AN ACRYLONITRILE REACTOR FEED STREAM

The present invention relates to catalyst compositions containing a mixed oxide catalyst of formula (I) or formula (II) as described herein, their preparation, and their use in a process for ammoxidation of various organic compounds to their corresponding nitriles and to the selective catalytic oxidation of excess NHpresent in effluent gas streams to Nand/or NO. 1. A catalyst composition comprising a mixed oxide catalyst of formula (I) or (II):{'br': None, 'sub': 12', 'a', 'b', 'c', 'd', 'e', 'f', 'h, 'sup': 1', '2', '3', '4', '5', '6, 'MoXXXXXXO\u2003\u2003(I)'}{'br': None, 'sub': i', 'j', 'k', 'm', 'n', 'q', 'x', 'y', 'r, 'FeMoCrBiMNQXYO\u2003\u2003(II)'} [{'sup': '1', 'Xis Cr and/or W;'}, {'sup': '2', 'Xis Bi, Sb, As, P, and/or a rare earth metal;'}, {'sup': '3', 'Xis Fe, Ru, and/or Os;'}, {'sup': '4', 'Xis Ti, Zr, Hf, B, Al, Ga, In, TI, Si, Ge, Sn, and/or Pb;'}, {'sup': '5', 'Xis Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Hg, Mn, Re, V, Nb, Ta, Se, and/or Te;'}, {'sup': '6', 'Xis an alkaline earth metal and/or an alkali metal;'}, '0≤a≤5;', '0.03≤b≤25;', '0≤c≤20;', '0≤d≤200;', '0≤e≤8;', '0≤f≤3; and', 'h is the number of oxygen atoms required to satisfy the valence requirements of the component elements other than oxygen present in formula (I), where', '1≤c+d+e+f≤200;', '0≤e+f≤8; and, 'wherein in the formula (I) M is Ce and/or Sb;', 'N is La, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ti, Zr, Hf, B, Al, Ga, In, TI, Si, Ge, Sn, Pb, P, and/or As;', 'Q is W, Ru, and/or Os;', 'X is Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Hg, Mn, Re, V, Nb, Ta, Se, and/or Te;', 'Y is an alkaline earth metal and/or an alkali metal;', '0.2≤i≤100;', '0≤j≤2;', '0≤k≤2;', '0.05≤m≤10;', '0≤n≤200;', '0≤q≤8;', '0≤x≤30;', '0≤y≤8;', 'j and kj; and', 'r is the number of oxygen atoms required to satisfy the valence requirements of the component elements other than oxygen present in formula (II),, 'wherein in the formula (II) 4≤m+n+q+x+y≤200;', '0≤q+x+y≤30; and, 'wherein{'sup ...

CATALYST FOR OXIDATIVE COUPLING OF METHANE, PREPARATION METHOD THEREOF AND APPLICATION THEREOF

A catalyst for oxidative coupling of methane, and preparation and application thereof. The catalyst comprises: a manganese sesquioxide, a tungstate, a manganese composite oxide having a perovskite structure and/or a spinel structure, and a carrier. The manganese sesquioxide, tungstate, and manganese composite oxide having a perovskite structure and/or a spinel structure are supported on the carrier, or the manganese sesquioxide and tungstate are supported on the admixture of the said manganese composite oxide having a perovskite structure and/or a spinel structure and the said carrier. Based on 100 parts by weight of the catalyst, the content of the manganese sesquioxide is a parts by weight, the content of the tungstate is b parts by weight, the content of the manganese composite oxide having the perovskite structure and/or the spinel structure is c parts by weight. e content of the carrier is d parts by weight. 0 Подробнее

NI-AL2O3@AL2O3-SIO2 CATALYST WITH COATED STRUCTURE, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

A Ni—AlO@AlO—SiOcatalyst with coated structure is provided. The catalyst has a specific surface area of 98 m/g to 245 m/g, and a pore volume of 0.25 cm/g to 1.1 cm/g. A mass ratio of an AlOcarrier to active component Ni in the catalyst is AlO:Ni=100:4˜26, a mass ratio of the AlOcarrier to an AlO—SiOcoating layer is AlO:AlO—SiO=100:0.1˜3, and a molar ratio of Al to Si in the AlO—SiOcoating layer is 0.01 to 1. Ni particles are distributed on a surface of the AlOcarrier in an amorphous or highly dispersed state and have a grain size less than or equal to 8 nm, and the coating layer is filled among the Ni particles. 1. A Ni—AlO@AlO—SiOcatalyst with coated structure , comprising: Ni particles are distributed on a surface of an AlOcarrier in an amorphous or highly dispersed state as an active component for the catalyst and have a grain size less than or equal to 8 nm , a mass ratio of the AlOcarrier to an AlO—SiOcoating layer is AlO:AlO—SiO=100:0.1˜3 , a molar ratio of Al to Si in the AlO—SiOcoating layer is 0.01˜0.1:1 , and the coating layer is filled among the Ni particles.2. The Ni—AlO@AlO—SiOcatalyst with coated structure according to claim 1 , wherein the catalyst has a specific surface area of 98 m/g˜245 m/g claim 1 , and a pore volume of 0.25 cm/g˜1.1 cm/g claim 1 , and a mass ratio of the AlOcarrier to the active component Ni in the catalyst is AlO:Ni=100:4˜26.3. A preparation method of the Ni—AlO@AlO—SiOcatalyst with coated structure according to claim 1 , comprising the steps of:{'sub': 2', '3', '2', '3, 'impregnation step: loading the active component Ni onto the AlOcarrier using an impregnation method, Ni being distributed in tetrahedral and octahedral holes on an AlOsurface and growing into microcrystalline particles by using the tetrahedral and octahedral holes as nuclei;'}{'sub': 2', '3', '2', '2', '3', '2', '3', '2', '2', '3, 'deposition step: loading the AlO—SiOlayer in a depositing manner onto a surface of a Ni/AlOcatalyst obtained in the impregnation ...

CATALYST FOR n-BUTANE OXIDATION TO MALEIC ANHYDRIDE

A promoted VPO catalyst for the oxidation of n-butane to maleic anhydride wherein the catalyst comprises the mixed oxides of vanadium and phosphorus, niobium and at least one of antimony and bismuth, wherein the catalyst may be produced in a process comprising impregnating a VPO catalyst with a metal source compound of niobium and a metal source compound of at least one of antimony and bismuth, to form a metal impregnated VPO catalyst, and then drying the metal impregnated VPO catalyst to form the promoted VPO catalyst. 1. A process for the preparation of a promoted VPO catalyst , wherein the catalyst comprises the mixed oxides of vanadium and phosphorus and wherein the catalyst is promoted with niobium and at least one of antimony and bismuth , said process comprising the steps of(i) preparing a VPO catalyst comprising vanadyl pyrophosphate as the major component and containing less than 5 wt % of vanadyl phosphate,(ii) impregnating the VPO catalyst with a metal source compound of niobium and a metal source compound of at least one of antimony and bismuth, to form a metal impregnated VPO catalyst, and(iii) drying the metal impregnated VPO catalyst to form the promoted VPO catalyst.2. The process of claim 1 , wherein the impregnation of the VPO catalyst in (ii) comprises contacting the VPO catalyst with a single liquid mixture comprising a metal source compound of niobium and a metal source compound of at least one of antimony and bismuth claim 1 , to form a metal impregnated VPO catalyst.3. The process of claim 1 , wherein the impregnation of the VPO catalyst in (ii) comprises contacting the VPO catalyst with a liquid mixture comprising a metal source compound of niobium and a liquid mixture comprising a metal source compound of at least one of antimony and bismuth claim 1 , to form a metal impregnated VPO catalyst.4. The process of claim 3 , wherein the catalyst is dried after being contacted with an initial liquid mixture and prior to being contacted with a ...

CATALYST FOR METAL MERCURY OXIDATION REACTIONS AND NITROGEN OXIDE REDUCTION REACTIONS, AND EXHAUST GAS PURIFICATION METHOD

A catalyst for oxidation reaction of metallic mercury and reduction reaction of nitrogen oxide, comprising an oxide of titanium, an oxide of molybdenum, an oxide of vanadium, an oxide of phosphorus and gypsum is obtained by kneading titanium dioxide, ammonium molybdate, ammonium metavanadate, phosphoric acid, gypsum dihydrate and water using a kneader to obtain a paste, applying the paste to a metal lath substrate, and then drying and calcining the resultant. 1. A catalyst for oxidation reaction of metallic mercury and reduction reaction of nitrogen oxide , comprising:an oxide of titanium,an oxide of molybdenum and/or tungsten,an oxide of vanadium,an oxide of phosphorus, andgypsum.2. The catalyst according to claim 1 , wherein a ratio of the dry-based mass of gypsum dihydrate to the mass of the oxide of titanium is 1/99 to 40/60.3. A method for exhaust gas purification claim 1 , comprising bringing an exhaust gas containing metallic mercury claim 1 , nitrogen oxide and sulfur dioxide in contact with a catalyst comprising an oxide of titanium claim 1 , an oxide of molybdenum and/or tungsten claim 1 , an oxide of vanadium claim 1 , an oxide of phosphorus and gypsum to oxidize the metallic mercury and reduce the nitrogen oxide. The present invention relates to a catalyst for oxidation reaction of metallic mercury and reduction reaction of nitrogen oxide, and a method for exhaust gas purification. More specifically, the present invention relates to a catalyst that is capable of accelerating gas phase oxidation reaction of metallic mercury and gas phase reduction reaction of nitrogen oxide, and is also capable of suppressing gas phase oxidation reaction of sulfur dioxide, as well as a method for purifying exhaust gas, which comprises oxidizing metallic mercury and reducing nitrogen oxide.There is concern that metallic mercury contained in flue gas discharged from power stations, factories, automobiles and the like affects the environment. Hence, removal of metallic ...

PEROVSKITE-CATALYZED HYDROGENOLYSIS OF HETEROATOM-CONTAINING COMPOUNDS

Perovskite compounds that catalyze hydrogenolysis (e.g., hydrodeoxygenation, hydrodenitrogenation, and/or hydrodesulfurization) of heteroatom-containing compounds, as well as associated systems and methods, are generally described. In some embodiments, methods are provided for contacting a perovskite compound with a heteroatom-containing compound (e.g., a compound comprising oxygen, nitrogen, and/or sulfur) in the presence of hydrogen gas (H) such that the perovskite compound catalyzes hydrogenolysis of the heteratom-containing compound to produce one or more hydrocarbon products (e.g., one or more aromatic hydrocarbons and/or aliphatic hydrocarbons). According to certain embodiments, the perovskite compound has the formula ABDO, where A comprises a lanthanide, B comprises an alkaline earth metal, D comprises a transition metal, and x is greater than or equal to 0 and less than or equal to 1. Compounds, systems, and methods described herein may be useful for applications involving petroleum (e.g., crude oil) and/or biofuels. 1. A method , comprising:{'sub': '2', 'contacting a perovskite compound with a heteroatom-containing compound in the presence of H, wherein the perovskite compound catalyzes hydrogenolysis of the heteroatom-containing compound to produce one or more hydrocarbon products.'}2. The method of claim 1 , wherein the perovskite compound has the formula ABDO claim 1 , wherein:A comprises a lanthanide;B comprises an alkaline earth metal;D comprises a transition metal; andx is greater than or equal to 0 and less than or equal to 1.3. The method of claim 1 , wherein the heteroatom-containing compound comprises N claim 1 , O claim 1 , and/or S.4. The method of claim 1 , wherein hydrogenolysis comprises hydrodeoxygenation claim 1 , hydrodenitrogenation claim 1 , and/or hydrodesulfurization.5. The method of claim 2 , wherein A comprises La.6. The method of claim 2 , wherein B comprises Mg claim 2 , Ca claim 2 , Sr claim 2 , and/or Ba.7. The method of claim 6 ...

Dinuclear rhodium complex-doped platinum/hollow mesoporous silica sphere composite material, and preparation method and application thereof

The invention discloses a dinuclear rhodium complex-doped platinum/hollow mesoporous silica sphere composite material, and a preparation method and an application thereof. The preparation method comprises the following steps: preparing hollow mesoporous silica by a selective etching technology, uniformly distributed a precious metal platinum in the channels of the hollow mesoporous silica by using simple impregnation, and mixing the obtained catalyst with dinuclear rhodium complex adsorbed silica gel to obtain the composite material integrating a chromogenic probe with the catalyst. The preparation method is simple, and the chromogenic performance of the dinuclear rhodium complex material and catalysis performance of the catalyst can achieve simultaneous detection and catalyst of CO; and the dinuclear rhodium complex has obvious response to CO, and has chromogenic change in the presence of 50 ppm CO, and the product prepared through the preparation method has excellent CO detection and treatment properties, and highly facilitates industrial application.

CATALYSTS FOR NATURAL GAS PROCESSES

Catalysts, catalytic forms and formulations, and catalytic methods are provided. The catalysts and catalytic forms and formulations are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane. Related methods for use and manufacture of the same are also disclosed. 138-. (canceled)39. A catalytic material comprising:(a) an OCM active catalyst; and {'br': None, 'sub': a', 'b', 'x', 'y, 'Ln1Ln2O(OH)'}, '(b) a second catalyst comprising the following formulawherein:Ln1 and Ln2 are each independently different lanthanide elements;O is oxygen;OH is hydroxy;a is a number greater than 0; andb, x and y are each independently numbers of 0 or greater, provided that at least one of x or y is greater than 0, andwherein the catalytic material comprises a methane conversion of greater than 20% and a C2 selectivity of greater than 50% when the catalytic material is employed as a heterogeneous catalyst in the oxidative coupling of methane at a temperatures ranging from about 550° C. to about 750° C.40. The catalytic material of claim 39 , wherein b and x are each independently numbers greater than 0 claim 39 , and y is 0.41. The catalytic material of claim 39 , wherein the OCM active catalyst is a bulk catalyst and the second catalyst is a nanostructured catalyst.42. The catalytic material of claim 39 , wherein the OCM active catalyst is a nanostructured catalyst.43. The catalytic material of claim 42 , wherein the OCM active catalyst is a nanowire catalyst.44. The catalytic material of claim 39 , wherein the second catalyst comprises a nanostructured catalyst comprising a lanthanum/neodymium oxide claim 39 , a lanthanum/cerium oxide claim 39 , a neodymium/cerium oxide claim 39 , a lanthanum/samarium oxide claim 39 , a neodymium/samarium oxide claim 39 , a europium/neodymium oxide claim 39 , a lanthanum/erbium oxide claim 39 , a neodymium/erbium oxide claim 39 , or a europium/lanthanum oxide.45. The catalytic material of claim 39 , wherein the ...

COMPOSITION BASED ON OXIDES OF CERIUM, OF NIOBIUM AND, OPTIONALLY, OF ZIRCONIUM AND USE THEREOF IN CATALYSIS

A composition based on cerium and niobium oxide in a proportion of niobium oxide of 2% to 20% is described. This composition can include zirconium oxide, optionally 50% of cerium oxide, 2% to 20% of niobium oxide, and at most 48% of zirconium oxide. Also described, is the use of the composition for treating exhaust gases. 1. A composition comprising niobium oxide with the following proportions by weight:niobium oxide: from 2% to 20%; andthe remainder as cerium oxide.2. The composition as claimed in claim 1 , wherein the composition further comprises zirconium oxide with the following proportions by weight:cerium oxide: at least 50%;niobium oxide: from 2% to 20%; andzirconium oxide: up to 48%.3. The composition as claimed in claim 2 , wherein the composition further comprises at least one oxide of an element M selected from the group consisting of tungsten claim 2 , molybdenum claim 2 , iron claim 2 , copper claim 2 , silicon claim 2 , aluminum claim 2 , manganese claim 2 , titanium claim 2 , vanadium and a rare earth metal other than cerium claim 2 , with the following proportions by weight:cerium oxide: at least 50%;niobium oxide: from 2% to 20%;oxide of the element M: up to 20%; andthe remainder as zirconium oxide.4. The composition as claimed in claim 1 , wherein after calcination at 800° C. for 4 hours claim 1 , the composition exhibits an acidity of at least 6×10this acidity being expressed in ml of ammonia per mof composition.5. The composition as claimed in claim 1 , wherein the composition comprises niobium oxide in a proportion by weight of between 3% and 15%.6. The composition as claimed in claim 2 , wherein the composition comprises cerium oxide in a proportion by weight of at least 65% and niobium oxide in a proportion by weight between 2% and 12%.7. The composition as claimed in claim 6 , wherein the composition comprises cerium oxide in a proportion by weight of at least 70%.8. The composition as claimed in claim 6 , wherein the composition comprises ...

SUPPORTED CATALYST FOR ORGANIC SUBSTANCE DECOMPOSITION AND ORGANIC SUBSTANCE DECOMPOSING APPARATUS

A supported catalyst for decomposing an organic substance that includes a carrier and catalyst particles supported on the carrier. The catalyst particles contain a perovskite-type composite oxide represented by ABMO, where A contains at least one of Ba and Sr, B contains Zr, M is at least one of Mn, Co, Ni, and Fe, y+z=1, x>1, z<0.4, and w is a positive value that satisfies electrical neutrality. An organic substance decomposition rate after the supported catalyst is subjected to a heat treatment at 950° C. for 48 hours is greater than 0.97 when the organic substance decomposition rate before the heat treatment is regarded as 1, and an amount of the catalyst particles peeled off when the supported catalyst is ultrasonicated in water at 28 kHz and 220 W for 15 minutes is less than 1 wt % of the catalyst particles before untrasonication. 1. A supported catalyst for decomposing an organic substance , the supported catalyst comprising:a carrier; andcatalyst particles supported on the carrier, wherein{'sub': x', 'y', 'z', 'w, 'the catalyst particles contain a perovskite-type composite oxide represented by ABMO, where the A contains at least one selected from Ba and Sr, the B contains Zr, the M is at least one selected from Mn, Co, Ni, and Fe, y+z=1, x>1 and z<0.4, and w is a positive value that satisfies electrical neutrality,'}an organic substance decomposition rate of the supported catalyst after a heat treatment at 950° C. for 48 hours is greater than 0.97 when the organic substance decomposition rate before the heat treatment is regarded as 1, andan amount of the catalyst particles peeled off when the supported catalyst is ultrasonicated in water at 28 kHz and 220 W for 15 minutes is less than 1 wt % with respect to an initial amount of the catalyst particles before being ultrasonicated.2. The supported catalyst for decomposing an organic substance according to claim 1 , wherein 1.001≤x≤1.05 claim 1 , and 0.05≤z≤0.2.3. The supported catalyst for decomposing an ...

MIXED OXIDE CATALYST FOR THE OXIDATIVE COUPLING OF METHANE

A mixed oxide catalyst for the oxidative coupling of methane can include a catalyst with the formula ABCDO, wherein: element A is selected from alkaline earth metals; elements B and C are selected from rare earth metals, and wherein elements B and C are different rare earth metals; the oxide of at least one of A, B, C, and D has basic properties; the oxide of at least one of A, B, C, and D has redox properties; and elements A, B, C, and D are selected to create a synergistic effect whereby the catalytic material provides a methane conversion of greater than or equal to 15% and a C selectivity of greater than or equal to 70%. Systems and methods can include contacting the catalyst with methane and oxygen and purifying or collecting C products. 1. A catalytic material for oxidative coupling of methane comprising:{'sub': a', 'b', 'c', 'd', 'x, 'claim-text': element A is selected from alkaline earth metals;', 'elements B and C are selected from rare earth metals, and wherein elements B and C are different rare earth metals;', 'the oxide of at least one of A, B, C, and D has basic properties;', 'the oxide of at least one of A, B, C, and D has redox properties; and', {'sub': '2', 'sup': '−', 'elements A, B, C, and D are selected to create a synergistic effect whereby the catalytic material provides a methane conversion of greater than or equal to 15% and a C selectivity of greater than or equal to 70%.'}], 'a catalyst with the formula ABCDO, wherein2. The catalytic material according to claim 1 , wherein: =1.0; claim 1 , claim 1 , and are each in the range from about 0.01 to about 10; and is a number selected to balance the oxidation state of D.3. The catalytic material according to claim 1 , wherein element A is selected from the group consisting of magnesium claim 1 , calcium claim 1 , strontium claim 1 , and barium.4. The catalytic material according to claim 1 , wherein elements B and C are selected from the group consisting of cerium claim 1 , ytterbium claim 1 , ...

EXHAUST GAS PURIFICATION CATALYST

To provide an excellent exhaust gas purification catalyst with satisfactory NOselective reductive purification performance at lower temperature, and having a satisfactory NO formation rate. 1. A selective reduction catalyst for exhaust gas purification , represented by the formula: CoMn)TiO(where x in the molar ratio is a value greater than 0 and 0.2 or less).2. The selective reduction catalyst for exhaust gas purification according to claim 1 , wherein x is 0.1 or more and 0.2 or less.3. An exhaust gas purification method claim 1 , employing the selective reduction catalyst for exhaust gas purification according to .4. An exhaust gas purification method claim 2 , employing the selective reduction catalyst for exhaust gas purification according to . The present invention relates to an exhaust gas purification catalyst, and particularly to a NO-selective reduction catalyst.In recent years, worldwide restrictions on exhaust gas are becoming tighter from the viewpoint of environmental protection. As one measure, exhaust gas purification catalysts are being employed in internal combustion engines. In order to efficiently remove the hydrocarbons (hereunder abbreviated as “HC”), CO and nitrogen oxides (hereunder abbreviated as “NOx”) in exhaust gas, exhaust gas purification catalysts employ precious metals such as Pt, Pd and Rh as catalyst components.Vehicles using such exhaust gas purification catalysts, such as gasoline engine vehicles and diesel engine vehicles, employ various types of systems designed to increase both catalytic activity and fuel efficiency. For example, in order to increase fuel efficiency, combustion is carried out under lean air/fuel ratio (A/F) conditions (oxygen excess) during steady operation, and in order to increase catalytic activity, combustion is temporarily conducted under stoichiometric (theoretical air/fuel ratio, A/F=14.7) to rich (fuel excess) conditions.This is because conventionally known catalysts including precious metals such as Pt ...

METHODS OF MAKING AND USING LAYERED COBALT NANO-CATALYSTS

A method of making LDO-Co nanoparticles is described herein. A method of using LDO-Co nanoparticles, particularly in the treatment of wastewater, is described herein. 1. A method of making layered double oxide (LDO) particles comprising:reacting a solution comprising cobalt with layered double hydroxide (LDH).2. The method of claim 1 , wherein the cobalt in the solution comprising cobalt is provided as cobalt nitrate (Co(NO)).3. The method of claim 2 , wherein the solution comprising cobalt further comprises at least one of urea (CO(NH)) claim 2 , aluminum nitrate (Al(NO)) claim 2 , and magnesium nitrate (Mg(NO)).4. The method of claim 3 , wherein the cobalt nitrate claim 3 , aluminum nitrate claim 3 , and magnesium nitrate are provided at a molar ratio of 2 magnesium nitrate:2 cobalt nitrate:1 aluminum nitrate.5. The method of claim 1 , wherein the reacting comprises placing the solution comprising cobalt in a sealed container with LDH.6. The method of claim 1 , wherein the reacting comprises heating the solution comprising cobalt and LDH to a temperature of 600° C.7. The method of claim 6 , wherein the heating the solution takes place under an inert atmosphere.8. The method of claim 7 , wherein the inert atmosphere is argon gas.9. The method of claim 5 , wherein the sealed container is a quartz tube.10. The method of claim 1 , wherein the reacting comprises thermal phase transformation.11. The method of claim 10 , wherein the thermal phase transformation takes place under a hydrogen gas atmosphere.12. The method of claim 11 , wherein the hydrogen gas atmosphere is introduced at a rate of 50 sccm.13. The method of claim 10 , wherein the thermal phase transformation is allowed to proceed for about 20 minutes.14. The method of claim 3 , wherein the molar percentage of cobalt relative to all metals (Θ) is between 0.1 and 67%.15. The method of claim 14 , wherein Θ is about 28%.16. A method of purifying water comprising:contacting layered double oxide (LDO) comprising ...

HETEROGENEOUS CATALYSTS

Heterogeneous catalysts with optional dopants are provided. The catalysts are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane to C hydrocarbons. Related methods for use and manufacture of the same are also disclosed. 1. A catalyst comprising a mixed oxide base material , the mixed oxide comprising erbium (Er) and at least one further lanthanide element.2. The catalyst of claim 1 , wherein the mixed oxide comprises a physical blend of Er claim 1 , or an oxidized form thereof claim 1 , and the further lanthanide element claim 1 , or an oxidized form thereof.3. The catalyst of claim 1 , wherein the mixed oxide has the following formula (I):{'br': None, 'sub': x', 'y', 'z, 'LnErO\u2003\u2003 (I)'} Ln is the lanthanide element;', 'Er is erbium;', 'O is oxygen; and', 'x, y and z are each independently numbers greater than 0., 'wherein4. The catalyst of claim 3 , wherein x claim 3 , y and z are selected such that the overall charge of the catalyst is about 0.5. The catalyst of claim 3 , wherein x claim 3 , y and z are selected such that z is from 150% to 200% of the sum of x and y.6. The catalyst of claim 3 , wherein the mixed oxide is LnErOor LnErO.727-. (canceled)28. A bulk catalyst comprising a base material comprising an oxide of one or more lanthanide elements and a dopant combination selected from Sr/Ce claim 3 , Sr/Tb claim 3 , Sr/B and Sr/Hf/K.29. The catalyst of claim 28 , wherein the oxide has the following formula (III):{'br': None, 'sub': a', 'b', 'd', 'e', 'f', 'c, 'Ln1Ln2Ln3Ln4Ln5O\u2003\u2003 (III)'} Ln1, Ln2, Ln3, Ln4 and Ln5 are independently different lanthanide elements;', 'O is oxygen; and', 'a and c are each independently numbers greater than 0; and', 'b, d, e, and f are independently 0 or a number greater than 0., 'wherein30. The catalyst of claim 28 , wherein the dopant combination consists essentially of Sr/Ce claim 28 , Sr/Tb claim 28 , Sr/B or Sr/Hf/K.31. The catalyst of claim 28 , wherein the dopant ...

PROCESS FOR PREPARING MODIFIED V-TI-P CATALYSTS FOR SYNTHESIS OF 2,3-UNSATURATED CARBOXYLIC ACIDS

The invention relates to a catalyst composition comprising a mixed oxide of vanadium, titanium, and phosphorus modified with alkali metal. The titanium component is derived from a water-soluble, redox-active organo-titanium compound. The catalyst composition is highly effective at facilitating the vapor-phase condensation of formaldehyde with acetic acid to generate acrylic acid, particularly using an industrially relevant aqueous liquid feed. 1. A catalyst composition comprising a mixed oxide of vanadium (V) , titanium (Ti) , phosphorus (P) , and alkali metal (M) , wherein the titanium component is the residue of an organo-titanium compound , wherein the organo-titanium compound is titanium(IV) bis(ammonium lactate)dihydroxide.2. The catalyst composition according to claim 1 , which has the general formula VTiPMO claim 1 , wherein a is a number from 0.3 to 6.0 claim 1 , b is a number from 2.0 to 13.0 claim 1 , c is a number from 0.01 to 1.25 claim 1 , and d is the number of atoms required to satisfy the valences of V claim 1 , Ti claim 1 , P claim 1 , and M.3. The catalyst composition according to claim 2 , wherein a ranges from 1.0 to 4.0 claim 2 , b ranges from 4.0 to 10.0 claim 2 , and c ranges from 0.25 to 0.75.4. The catalyst composition according to claim 1 , wherein the alkali metal is selected from at least one of lithium claim 1 , sodium claim 1 , potassium claim 1 , rubidium claim 1 , and cesium.5. The catalyst composition according to claim 1 , wherein the alkali metal comprises potassium.6. The catalyst composition according to claim 1 , which further comprises a pre-shaped support.7. The catalyst composition according to claim 6 , wherein the pre-shaped support comprises silica claim 6 , alumina claim 6 , titanium oxide claim 6 , titanium pyrophosphate claim 6 , zirconium oxide claim 6 , or zirconium pyrophosphate.8. The catalyst composition according to claim 6 , wherein the pre-shaped support has a particle size ranging from 0.1 mm to 20 mm.9. A ...

PHOTOCATALYST FORMULATIONS AND COATINGS

An apparatus includes a substrate having a surface, and a transparent semiconductor photocatalyst layer secured to the surface of the substrate, wherein the photocatalyst layer includes titanium oxide and a component selected from a fluorescent dye, ultra-fine glitter, indium tin oxide, aluminum zinc oxide, silver nitrate, and combinations thereof. The photocatalyst coating may be formed on a substrate using a formulation that includes an aqueous mixture of titanium oxide and amorphous titanium peroxide, wherein the aqueous mixture may further include one of the components. A method of forming the photocatalyst coating may include applying an aqueous mixture of titanium oxide and amorphous titanium peroxide to a surface of the substrate, wherein the photocatalyst coating includes a fluorescent dye, ultra-fine glitter, indium tin oxide, aluminum zinc oxide, and/or silver nitrate. The aqueous mixture may then be dried and heated to 100 degrees Celsius or greater. 1. An apparatus , comprising:a substrate having a surface; anda transparent semiconductor photocatalyst layer secured to the surface of the substrate, wherein the transparent semiconductor photocatalyst layer includes titanium oxide and a component selected from a fluorescent dye, ultra-fine glitter, indium tin oxide, aluminum zinc oxide, and/or silver nitrate.2. The apparatus of claim 1 , wherein the component is a fluorescent dye.3. The apparatus of claim 1 , wherein the component is ultra-fine glitter.4. The apparatus of claim 1 , wherein the component is indium tin oxide.5. The apparatus of claim 1 , wherein the component is aluminum zinc oxide.6. The apparatus of claim 1 , wherein the component is silver nitrate.7. The apparatus of claim 1 , wherein the substrate is a transparent material selected from glass claim 1 , fused quartz and plastic.8. The apparatus of claim 7 , further comprising:a light-emitting element disposed adjacent to the substrate to direct light through the transparent substrate ...

CATALYST FOR ALKANE OXIDATIVE UU DEHYDROGENATION AND/OR ALKENE OXIDATION

The invention relates to a process for preparing a shaped catalyst for alkane oxidative dehydrogenation and/or alkene oxidation, which comprises: a) preparing a mixed metal oxide catalyst containing molybdenum, vanadium, niobium and optionally tellurium; b) mixing the catalyst obtained in step a), a binder and optionally water, wherein the binder has a surface area greater than 100 m/g and a water loss upon heating at a temperature of 485° C. which is greater than 1 wt. %; c) shaping the mixture obtained in step b) to form a shaped catalyst by means of tableting; and d) subjecting the shaped catalyst obtained in step c) to an elevated temperature. Further, the invention relates to a catalyst obtainable by said process and to a process of alkane oxidative dehydrogenation and/or alkene oxidation wherein said catalyst is used. 1. A process for preparing a shaped catalyst for alkane oxidative dehydrogenation and/or alkene oxidation , the process comprising:a) preparing a mixed metal oxide catalyst containing molybdenum, vanadium, niobium and optionally tellurium;b) mixing the catalyst obtained in step a), a binder and optionally water, wherein the binder has a surface area greater than 100 m2/g and a water loss upon heating at a temperature of 485° C. greater than 1 wt. %, wherein said water loss is represented by the difference between the binder weight after heating the binder at a temperature of 110° C. and the binder weight after heating the binder at a temperature of 485° C., relative to the binder weight after heating the binder at a temperature of 110° C.;c) shaping the mixture obtained in step b) to form a shaped catalyst by means of tableting; andd) subjecting the shaped catalyst obtained in step c) to an elevated temperature.2. The process according to claim 2 , wherein the water loss of the binder is at least 2 wt. %.3. The process according to claim 1 , wherein the surface area of the binder is of from 150 to 500 m2/g.4. The process according to claim 1 , ...

OXYNITRIDE HYDRIDE, SUPPORTED METAL MATERIAL CONTAINING OXYNITRIDE HYDRIDE, AND CATALYST FOR AMMONIA SYNTHESIS

The invention provides a perovskite-type oxynitride hydride which can be easily synthesized by achieving both improvement in catalytic performance and stabilization when used as a support of a catalyst. The oxynitride hydride is represented by general formula (1a) or (1b). 1. An oxynitride hydride represented by the following general formula (1a) or (1b) ,{'br': None, 'sub': 3-x', 'y', 'z, 'ABONH\u2003\u2003(1a)'}{'br': None, 'sub': 2', '4-x', 'y', 'z, 'ABONH\u2003\u2003(1b)'}wherein, in the general formula (1a), A is at least one kind selected from the group consisting of Ba and Sr; B is Ce; x represents a number represented by 0.2≤x≤2.0; y represents a number represented by 0.1≤y≤1.0; and z represents a number represented by 0.1≤z≤1.0, andin the above general formula (1b), A is at least one kind selected from the group consisting of Ba and Sr; B is at least one kind selected from the group consisting of Ce, La and Y; x represents a number represented by 0.2≤x≤2.0; y represents a number represented by 0.1≤y≤1.0; and z represents a number represented by 0.1≤z≤1.0.2. A perovskite-type oxynitride hydride represented by the following general formula (2) ,{'br': None, 'sub': 3-x', 'y', 'z, 'BaCeONH\u2003\u2003(2)'}wherein, in the general formula (2), x represents a number represented by 0.2≤x≤2.0; y represents a number represented by 0.1≤y≤1.0; and z represents a number represented by 0.1≤z≤1.0.3. A supported metal material in which a transition metal (M) is supported on a support ,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'wherein the supported metal material is a composition comprising the oxynitride hydride according to .'}4. The supported metal material according to claim 3 , wherein a loading amount of the transition metal (M) is 0.01 parts by mass or more and 50 parts by mass or less with respect to 100 parts by mass of the support.5. The supported metal material according to claim 3 , wherein the transition metal (M) is at least one selected from the ...

CATALYST COMPOSITION

A method for producing an exhaust gas purifying catalyst including a composite oxide represented by the following general formula (3), the method including a primary baking step of baking a coprecipitate obtained from an aqueous mixed salt solution of respective elements, a citrate complex obtained from an aqueous citric acid mixed salt solution of salts of the respective elements and citric acid, or a precipitate obtained from an alkoxide mixed solution of the respective elements at 500 to 1200° C., the respective elements constituting the exhaust gas purifying catalyst represented by the following general formula (3), including A, B and Fe but excluding Pd; a step of adding an aqueous solution of Pd salt to a primary composite oxide obtained through the primary baking step to give a precursor composition; and a secondary baking step of baking the precursor composition at 800 to 1400° C., AO.x(BFePdO) (3). 111.-. (canceled)12. A method for producing an exhaust gas purifying catalyst comprising a composite oxide represented by the following general formula (3) , the method comprising:a primary baking step of baking a coprecipitate obtained from an aqueous mixed salt solution of respective elements, a citrate complex obtained from an aqueous citric acid mixed salt solution of salts of the respective elements and citric acid, or a precipitate obtained from an alkoxide mixed solution of the respective elements at 500 to 1200° C., the respective elements constituting the exhaust gas purifying catalyst represented by the following general formula (3), including A, B and Fe but excluding Pd;a step of adding an aqueous solution of Pd salt to a primary composite oxide obtained through the primary baking step to give a precursor composition; and {'br': None, 'sub': 2-y-z', 'y', 'Z', '3-α, 'AO.x(BFePdO)\u2003\u2003(3)'}, 'a secondary baking step of baking the precursor composition at 800 to 1400° C.,'}wherein A represents an element selected from monovalent elements, divalent ...

ALKANE OXIDATIVE DEHYDROGENATION AND/OR ALKENE OXIDATION

The invention relates to a process of the oxidative dehydrogenation of an alkane containing 2 to 6 carbon atoms and/or the oxidation of an alkene containing 2 to 6 carbon atoms, wherein the alkane and/or alkene is contacted with oxygen in the presence of a catalyst comprising a mixed metal oxide and one or more diluents selected from the group consisting of carbon dioxide, carbon monoxide and steam, and wherein the conversion of the alkane and/or alkene is at least 40%. 1. A process of the oxidative dehydrogenation of an alkane containing 2 to 6 carbon atoms and/or the oxidation of an alkene containing 2 to 6 carbon atoms , wherein the alkane and/or alkene is contacted with oxygen in the presence of a catalyst comprising a mixed metal oxide and one or more diluents selected from the group consisting of carbon dioxide , carbon monoxide and steam , and wherein the conversion of the alkane and/or alkene is at least 40%.2. The process according to claim 1 , wherein the conversion of the alkane and/or alkene is of from 45% to 70%.3. The process according to claim 1 , wherein the diluent comprises carbon dioxide.4. The process according to claim 1 , wherein the diluent comprises from 1 to 100 vol. % of carbon dioxide.5. The process according to claim 1 , wherein the alkane is ethane or propane and the alkene is ethylene or propylene.6. The process according to claim 1 , wherein the catalyst is a mixed metal oxide catalyst containing molybdenum claim 1 , vanadium claim 1 , niobium and optionally tellurium. The present invention relates to a process for alkane oxidative dehydrogenation and/or alkene oxidation.It is known to oxidatively dehydrogenate alkanes, such as alkanes containing 2 to 6 carbon atoms, for example ethane or propane resulting in ethylene and propylene, respectively, in an oxidative dehydrogenation (oxydehydrogenation; ODH) process. Examples of alkane ODH processes, including catalysts and other process conditions, are for example disclosed in U.S. Pat. No ...

OXIDATIVE DEHYDROGENATION CATALYST COMPOSITIONS

Provided in this disclosure are catalyst compositions. The catalyst compositions include an oxidative dehydrogenation catalyst that includes a mixed metal oxide having the empirical formula: 1. A catalyst composition comprising an oxidative dehydrogenation catalyst comprising a mixed metal oxide having the empirical formula:{'br': None, 'sub': 1.0', '0.12-0.49', '0.05-0.25', '0.10-0.20', 'c', 'd, 'MoVTeNbAlO'} c is from 0 to 2.0,', 'd is a number to satisfy the valence of the oxide, and', 'the composition is at least 40 wt. % amorphous as measured by XRD., 'wherein2. The catalyst composition of claim 1 , wherein the composition is from 60 wt. % to 80 wt. % amorphous.3. The catalyst composition of claim 1 , wherein the composition further comprises an adjuvant.4. The catalyst composition of claim 3 , wherein the adjuvant comprises about 30 wt. % to about 90 wt. % of the catalyst composition.5. The catalyst composition of claim 4 , wherein the oxidative dehydrogenation catalyst comprises about 10 wt. % to about 70 wt. % of the catalyst composition.6. The catalyst composition of claim 1 , wherein the mixed metal oxide has the empirical formula:{'br': None, 'sub': 1.0', '0.12-0.49', '0.05-0.17', '0.10-0.20', 'c', 'd, 'MoVTeNbAlO'}wherein c is 0.01 to 2.0.7. The catalyst composition of claim 3 , wherein the adjuvant comprises an alumina.8. The catalyst composition of claim 7 , wherein the alumina comprises a boehmite.9. The catalyst composition of claim 1 , wherein the molar ratio of molybdenum to vanadium in the catalyst composition is from 1:0.12 to 1:0.49 claim 1 , the molar ratio of molybdenum to tellurium in the catalyst composition is from 1:0.05 to 1:0.25 claim 1 , the molar ratio of molybdenum to niobium in the catalyst composition is from 1:0.10 to 1:0.20 claim 1 , and the molar ratio of molybdenum to aluminum in the catalyst composition is from 0.01 to 2.0 claim 1 , as determined by PIXE.10. The catalyst composition of claim 1 , wherein the catalyst composition ...

HIGH ASPECT RATIO LAYERED DOUBLE HYDROXIDE MATERIALS AND METHODS FOR PREPARATION THEREOF

Embodiments are directed to adamantane-intercalated layered double-hydroxide (LDH) particles and the methods of producing adamantane-intercalated LDH particles. The adamantane-intercalated LDH particles have a general formula defined by [MAl(OH)](A).mHO, where x is from 0.14 to 0.33, m is from 0.33 to 0.50, M is chosen from Mg, Ca, Co, Ni, Cu, or Zn, and A is adamantane carboxylate. The adamantane-intercalated LDH particles further have an aspect ratio greater than 100. The aspect ratio is defined by the width of an adamantane-intercalated LDH particle divided by the thickness of the adamantane-intercalated LDH particle. 1. An adamantane-intercalated layered double-hydroxide (LDH) material in a form of adamantane-intercalated LDH particles , where the adamantane-intercalated LDH particles comprise:{'sub': 1-x', 'x', '2', 'x', '2, 'a general formula defined by [MAl(OH)](A).mHO, where x is from 0.14 to 0.33, m is from 0.33 to 0.50, M is chosen from Mg, Ca, Co, Ni, Cu, or Zn, and A is adamantane carboxylate; and'}an aspect ratio greater than 100, the aspect ratio defined by a width of an adamantane-intercalated LDH particle divided by a thickness of the adamantane-intercalated LDH particle.2. The adamantane-intercalated LDH material of where M is Mg.3. The adamantane-intercalated LDH material of where the aspect ratio is greater than 125.4. The adamantane-intercalated LDH material of where the aspect ratio is greater than 150.5. The adamantane-intercalated LDH material of where the aspect ratio is greater than 200.6. The adamantane-intercalated LDH material of where the adamantane-intercalated LDH particles have a particle diameter of 5 to 10 μm.7. The adamantane-intercalated LDH material of where the adamantane-intercalated LDH particles have characteristic peaks in an IR spectra at 1517 cm claim 1 , 1395 cm claim 1 , 2901 cm claim 1 , 2847 cm claim 1 , and 4302 cm. This application is a divisional application of U.S. patent application Ser. No. 15/449,207 filed Mar. ...

CATALYST STRUCTURE FOR EXHAUST GAS TREATMENT

Provided is a new catalyst structure for exhaust gas treatment including an upper catalyst layer and a lower catalyst layer, in which the catalyst structure can sufficiently exhibit functions as a three way catalyst while maintaining gas diffusibility. Proposed is a catalyst structure including a substrate, an upper catalyst layer, and a lower catalyst layer, the catalyst structure having a first peak or a second peak at a pore volume diameter of 10 nm to 50 nm and a pore volume diameter of 50 nm to 100 nm, respectively, in the logarithmic differential pore volume distribution analyzed by a mercury intrusion porosimeter. 1. A catalyst structure comprising a substrate , an upper catalyst layer , and a lower catalyst layer , the catalyst structure having a first peak or a second peak at a pore volume diameter of 10 nm to 50 nm and a pore volume diameter of 50 nm to 100 nm , respectively , in the logarithmic differential pore volume distribution analyzed by a mercury intrusion porosimeter.2. The catalyst structure according to claim 1 , wherein the difference between the pore volume diameter of the first peak and the pore volume diameter of the second peak is 20 nm to 60 nm.3. The catalyst structure according to claim 1 , wherein the upper catalyst layer and the lower catalyst layer both contain an inorganic porous material claim 1 , and the inorganic porous material contained in the upper catalyst layer has a different composition or a different pore distribution than that of the inorganic porous material contained in the lower catalyst layer.4. The catalyst structure according to claim 1 , wherein the upper catalyst layer is a porous layer containing an inorganic porous material formed from an oxide having an apatite type crystal structure.5. The catalyst structure according to claim 1 , wherein the lower catalyst layer is a porous layer containing an inorganic porous material having an oxygen storage/release capacity function (OSC function).6. The catalyst structure ...

Supported catalyst

Described herein is a supported catalyst for a liquid-phase reaction, the supported catalyst comprising a perovskite support comprising A-site species and B-site species and a catalytic component on a surface of the perovskite support. Also described herein is a method for tuning the selectivity of a supported catalyst.

SUPPORTED CATALYST FOR ORGANIC SUBSTANCE DECOMPOSITION AND ORGANIC SUBSTANCE DECOMPOSITION DEVICE

A supported catalyst for decomposing an organic substance that includes a support and a catalyst particle supported on the support. The catalyst particle contains a perovskite-type composite oxide represented by ABMO, where the A contains at least one selected from Ba and Sr, the B contains Zr, the M is at least one selected from Mn, Co, Ni and Fe, y+z=1, x≥0.995, z≤0.4, and w is a positive value satisfying electrical neutrality. A film thickness of a catalyst-supporting film supported on the support and containing the catalyst particle is 5 μm or more, or a supported amount as determined by normalizing a mass of the catalyst particle supported on the support by a volume of the support is 45 g/L or more. 1. A supported catalyst for decomposing an organic substance , the supported catalyst comprising:a support; anda catalyst-supporting film supported on the support, the catalyst-supporting film containing a catalyst particle, and the catalyst-supporting film having a film thickness of 5 μm or more, wherein{'sub': x', 'y', 'z', 'w, 'the catalyst particle contains a perovskite-type composite oxide represented by ABMO, where the A contains at least one selected from Ba and Sr, the B contains Zr, the M is at least one selected from Mn, Co, Ni and Fe, y+z=1, x≥0.995, z≤0.4, and w is a positive value that satisfies electrical neutrality.'}2. The supported catalyst for decomposing an organic substance according to claim 1 , wherein the film thickness of the catalyst-supporting film is 5 μm to 116 μm.3. The supported catalyst for decomposing an organic substance according to claim 1 , wherein 1.001≤x≤1.05 and 0.05≤z≤0.2.4. The supported catalyst for decomposing an organic substance according to claim 3 , wherein x≥1.005.5. The supported catalyst for decomposing an organic substance according to claim 4 , wherein z≤0.1.6. The supported catalyst for decomposing an organic substance according to claim 3 , wherein z≤0.1.7. The supported catalyst for decomposing an organic ...

Catalyst for producing unsaturated carboxylic acid

Provided is a catalyst for producing an unsaturated carboxylic acid, in which a ratio of a diffraction line intensity of 2θ=19.1±0.3° with respect to a diffraction line intensity of 2θ=10.7±0.3° in X-ray diffraction measurement is 0.20 or more and less than 0.58, and the catalyst having an active component represented by formula (A) shown below: Mo 10 V a P b Cu c As d X e O g   (A)

METHOD OF COLLECTING A NUCLEIC ACID(S)

A method of collecting a nucleic acid(s) from a biological sample includes step a) mixing an aluminum oxide support with a water-soluble neutral polymer adsorbed on a surface thereof and a solution containing a nucleic acid(s), thereby adsorbing the nucleic acid(s) to the support; step b) separating the support on which the nucleic acid(s) is/are adsorbed from the solution mixed in step a); and step c) collecting the nucleic acid(s) by adding an eluent to the support on which the nucleic acid(s) is/are adsorbed and which is separated in step b). 110.-. (canceled)11. A method of collecting a nucleic acid(s) from a biological sample , comprising:step a) mixing an aluminum oxide support with a water-soluble neutral polymer adsorbed on a surface thereof and a solution containing a nucleic acid(s), thereby adsorbing the nucleic acid(s) to the support,step b) separating the support on which the nucleic acid(s) is/are adsorbed from the solution mixed in step a), andstep c) collecting the nucleic acid(s) by adding an eluent to the support on which the nucleic acid(s) is/are adsorbed and which is separated in step b).12. The method according to claim 11 , wherein the water-soluble neutral polymer is a polymer having a zeta potential of not less than −10 mV and not more than +10 mV in a solution of pH 7.13. The method according to claim 11 , wherein the polymer is polyethylene glycol claim 11 , polyvinyl alcohol claim 11 , polyvinylpyrrolidone claim 11 , poly(2-ethyl-2-oxazoline) or hydroxypropyl methylcellulose.14. The method according to claim 11 , wherein the eluent is a buffer solution.15. The method according to claim 11 , wherein the biological sample is blood claim 11 , urine claim 11 , saliva claim 11 , a mucous membrane claim 11 , sweat claim 11 , a cultured cell claim 11 , a culture solution of cultured cells claim 11 , or a tissue sample or specimen.16. A support for collecting a nucleic acid(s) claim 11 , in which a water-soluble neutral polymer is adsorbed on a ...

BIMETAL OXIDE CATALYST AND METHODS

Bimetal oxide catalyst and methods, a method comprises: mixing and grinding to obtain a mixture comprising a manganese salt (a), at least one of other metal salt (b), and an additive (c), wherein the other metal salt comprises at least one of a copper salt, a cobalt salt, a cerium salt, an iron salt, or a nickel salt, and the additive comprises at least one of polyol or organic acid, and calcining the mixture to obtain the bimetal oxide catalyst. 1. A method for preparing a bimetal oxide catalyst , comprising:mixing and grinding a manganese salt (a), other metal salt (b), and an additive (c) to obtain a mixture, wherein the other metal salt (b) comprises at least one of a copper salt, a cobalt salt, a cerium salt, an iron salt, or a nickel salt, and the additive (c) comprises at least one of polyol or organic acid, andcalcining the mixture to obtain the bimetal oxide catalyst.2. The method according to claim 1 , wherein the manganese salt (a) comprises at least one of manganese nitrate claim 1 , manganese acetate claim 1 , or manganese oxalate.3. The method according to claim 1 , wherein:the copper salt comprises at least one of copper nitrate, copper acetate, or copper oxalate,the cobalt salt comprises at least one of cobalt nitrate, cobalt acetate, or cobalt oxalate,the cerium salt comprises at least one of cerium nitrate, cerium acetate, or cerium oxalate,the iron salt comprises at least one of iron nitrate, iron acetate, or iron oxalate, andthe nickel salt comprises at least one of nickel nitrate, nickel acetate, or nickel oxalate.4. The method according to claim 1 , wherein:the polyol comprises at least one of vitamin C, citric acid, or malic acid, andthe organic acid comprises at least one of fructose, glucose, or xylose.5. The method according to claim 1 , wherein:calcining the mixture comprises calcining the mixture at 160-240° C. for 0.5-5 hours to obtain the bimetal oxide catalyst, anda molar ratio of a to b is 1:(0.1-2), and a molar ratio of c to a sum of ...

Catalyst For Producing Unsaturated Aldehyde And/or Unsaturated Carboxylic Acid, Method For Producing The Catalyst, And Method For Producing Unsaturated Aldehyde and/or Unsaturated Carboxylic Acid Using The Catalyst

An object of the invention is to provide a novel catalyst having high mechanical strength and capable of obtaining an unsaturated aldehyde or an unsaturated carboxylic acid in a high yield and a method for producing the same, and a method for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid using the catalyst. 2. The catalyst according to claim 1 ,wherein a content of the silane-treated glass fibers is in a range of 0.1% by mass to 30% by mass relative to the catalytic active component.3. The catalyst according to claim 1 , which is prepared by physically mixing the compound containing the catalytic active component and the silane-treated glass fibers and supporting the mixture on an inert carrier.4. The catalyst according to claim 1 ,wherein when a calcining temperature is 510° C. or higher, an average catalyst particle diameter is 5.0 mm or more.5. The catalyst according to claim 1 ,wherein when a calcining temperature is 540° C. or higher, an average catalyst particle diameter is 6.0 mm or more.6. A method for producing the catalyst for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid according to claim 1 , comprising:physically mixing the compound containing the catalytic active component represented by the formula (1) and the silane-treated glass fibers; andsupporting the mixture on an inert carrier.7. A method for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid claim 1 , which uses the catalyst according to . The present invention relates to a novel catalyst for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid, a method for producing the catalyst, and a method for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid using the catalyst.Methods in which propylene, isobutylene or tertiary butyl alcohol is used as a raw material to produce a corresponding unsaturated aldehyde or unsaturated carboxylic acid are industrially widely carried out. However, ...

SELECTIVE AMMOXIDATION CATALYSTS

A catalytic composition useful for the conversion of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile, and mixtures thereof. The catalytic composition comprises a complex of metal oxides comprising bismuth, molybdenum, iron, cerium and other promoters, wherein the ratio of bismuth to cerium ratio in the composition is greater than or equal to 0.45 and less than or equal to 1.5. 113-. (canceled)14. A process for the conversion of an olefin selected from the group consisting of propylene , isobutylene or mixtures thereof , to acrylonitrile , methacrylonitrile , and mixtures thereof , respectively , by reacting in the vapor phase at an elevated temperature and pressure said olefin with a molecular oxygen containing gas and ammonia in the presence of a catalyst wherein the relative ratios of the listed elements in said catalyst are represented by the following formula:{'br': None, 'sub': m', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'x, 'MoBiFeADEFGCeO'} D is at least one element selected from the group consisting of nickel, cobalt, manganese, zinc, magnesium, calcium, strontium, cadmium and barium;', 'E is at least one element selected from the group consisting of chromium, tungsten, boron, aluminum, gallium, indium, phosphorus, arsenic, antimony, vanadium and tellurium;', 'F is at least one element selected from the group consisting of lanthanum, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium thulium, ytterbium, lutetium, scandium, yttrium, titanium, zirconium, hafnium, niobium, tantalum, aluminum, gallium, indium, thallium, silicon, germanium and less than about 10 ppm lead;', 'G is at least one element selected from the group consisting of silver, gold, ruthenium, rhodium, palladium, osmium, iridium, platinum and mercury; and, 'wherein A is at least one element selected from the group consisting of sodium, potassium, rubidium and cesium; and'} ...

DIENE PRODUCTION METHOD

A method for producing diene in which diene can be produced in a high yield by using a raw material including a branched olefin and a straight chain olefin is provided. The method for producing diene comprises: a step 1 of obtaining an internal olefin by removing a branched olefin from a raw material including at least the branched olefin and a straight chain olefin; a step 2 of isomerizing the internal olefin to a terminal olefin by using an isomerization catalyst; and a step 3 of producing diene from the terminal olefin obtained in the step 2 by oxidative dehydrogenation using a dehydrogenation catalyst. 1. A method for producing diene , comprising:a step 1 of obtaining an internal olefin by removing a branched olefin from a raw material including at least the branched olefin and a straight chain olefin;a step 2 of isomerizing the internal olefin to a terminal olefin by using an isomerization catalyst; anda step 3 of producing diene from the terminal olefin obtained in the step 2 by oxidative dehydrogenation using a dehydrogenation catalyst.2. The method for producing diene according to claim 1 ,wherein at least a part of the straight chain olefin is a terminal olefin, andwherein in the step 1, the branched olefin is removed from the raw material and the terminal olefin is isomerized to the internal olefin by reactive distillation.3. The method for producing diene according to claim 1 ,wherein the isomerization catalyst includes at least one selected from the group consisting of silica and alumina.4. The method for producing diene according to claim 1 ,wherein the dehydrogenation catalyst has a complex oxide including bismuth, molybdenum and oxygen.5. The method for producing diene according to claim 1 ,wherein in the step 2, the internal olefin is isomerized to the terminal olefin to obtain a first fraction including the terminal olefin and a second fraction including an unreacted portion of the internal olefin by reactive distillation.6. The method for producing ...

ZEOLITE AND REDOX OXIDE COMBINED CATALYST BODY

Extruded honeycomb catalyst bodies and methods of manufacturing same. The catalyst body includes a first oxide selected from the group consisting of tungsten oxides, vanadium oxides, and combinations thereof, a second oxide selected from the group consisting of cerium oxides, lanthanum oxides, zirconium oxides, and combinations thereof, and a zeolite. 1. A method for treating an exhaust stream containing NOgas , said method comprising contacting said exhaust stream with a catalytic structure comprising a body comprising about 60% to about 81% of WO—CeO—ZrOand about 25% to about 40% of a ZSM-5 zeolite.2. The method according to wherein the temperature of the exhaust stream is less than 200° C. and the NOgas is catalytically reduced by contact with the structure.3. The method according to wherein the temperature of the exhaust stream is greater than 600° C. and the NOgas is catalytically reduced by contact with the structure.4. The method according to wherein the exhaust stream comprises a reductant and the reductant is catalytically activated by contact with the catalytic structure.5. The method according to wherein the catalytic structure is substantially free of platinum claim 1 , palladium claim 1 , and rhodium.6. A method for treating an exhaust stream containing NOgas comprising contacting a catalytic structure with the exhaust stream claim 1 , the catalytic structure comprising a first oxide selected from the group consisting of tungsten oxides claim 1 , vanadium oxides claim 1 , and combinations thereof claim 1 , a second oxide selected from the group consisting of cerium oxides claim 1 , lanthanum oxides claim 1 , zirconium oxides claim 1 , and combinations thereof claim 1 , and a zeolite claim 1 , the use comprising contacting the catalytic structure with an exhaust stream containing NOgas claim 1 , wherein the catalytic structure is substantially free of platinum claim 1 , palladium claim 1 , and rhodium.7. The method of wherein the temperature of the ...

HYDROPROCESSING CATALYST FOR HEAVY DISTILLATE STREAMS, METHOD OF MANUFACTURE AND APPLICATION

Catalysts are described. The catalysts comprise a dried extrudate of a mixture of γ-alumina and at least one mixed metal oxide or mixed metal hydroxide, the γ-alumina having a BET surface area of 150 m/g to 275 m/g. Processes of making the hydroprocessing catalysts, and hydroprocessing processes using the catalysts are also described. 1. A catalyst comprising:{'sup': 2', '2, 'a dried extrudate of a mixture of γ-alumina and at least one mixed metal oxide or mixed metal hydroxide, the γ-alumina having a BET surface area of 150 m/g to 275 m/g.'}2. The catalyst of wherein the catalyst comprises 30 wt % or less of the γ-alumina.3. The catalyst of further comprising a water soluble hydroxy-cellulose.4. The catalyst of further comprising at least one of: a zeolite and/or a silica-alumina component.5. A process of making a hydroprocessing catalyst comprising:mixing a powder comprising at least one mixed metal oxide precursor or mixed metal hydroxide precursor; and a γ-alumina powder with water to form an extrudable dough;extruding the dough; anddrying the dough to form the catalyst.6. The process of further comprising:pre-calcining boehmite alumina to form the γ-alumina powder.7. The process of further comprising optionally adding at least one of: a zeolite or a silica-alumina component to the dough.8. The process of wherein the catalyst comprises 30 wt % or less of the γ-alumina.9. The process of wherein the catalyst comprises 10 to 90% of the mixed metal oxide.10. The process of wherein the dough is dried at a temperature of 100° C. to 175° C.11. The process of further comprising adding a water-soluble hydroxy-cellulose.12. The process of wherein the catalyst comprises 0 to 80% of at least one of a zeolite or a silica-alumina component.13. The process of further comprising activating the catalyst.14. A hydroprocessing process comprising:{'sup': 2', '2, 'passing a hydrocarbon feed and a hydrogen-rich gas to a hydroprocessing zone at hydroprocessing conditions in the ...

HIGH TAR CONVERSION PERFORMANCE OF A Nl-FE-MGO CATALYST

Disclosed herein, inter alia, are novel nickel-iron-magnesium oxide catalyst compositions and methods of making and using the same. 1. A catalyst comprising nickel (Ni) , iron (Fe) , and magnesium oxide (MgO) , wherein the catalyst comprises about 30 to 60 wt % Ni , about 10 to 30 wt % Fe , and about 20 to 50 wt % MgO.2. The catalyst of claim 1 , wherein the weight ratio is about 40 to 50 wt % Ni claim 1 , 15 to 25 wt % Fe claim 1 , and 30 to 40 wt % MgO.3. The catalyst of claim 1 , wherein the weight ratio is about 45 wt % Ni claim 1 , 20 wt % Fe claim 1 , and 35 wt % MgO.4. The catalyst of claim 1 , wherein the catalyst further comprises a substrate support.5. The catalyst of claim 4 , wherein the substrate support comprises one or more of the ceramic claim 4 , olivine claim 4 , dolomite claim 4 , calcium carbonate claim 4 , aluminum oxide claim 4 , silicon dioxide claim 4 , titanium dioxide claim 4 , and iron oxide.6. The catalyst of claim 4 , wherein the substrate support comprises aluminum oxide claim 4 , silicon dioxide claim 4 , titanium dioxide claim 4 , and iron oxide.7. The catalyst of claim 4 , wherein the catalyst to substrate support weight ratio is 0.5-5.0%.8. The catalyst of claim 4 , wherein the catalyst to substrate support weight ratio is 0.75-1.15%.9. The catalyst of claim 1 , wherein the substrate support is spherical and about 400 to about 600 μm in diameter.10. The catalyst of claim 1 , wherein the catalyst has a honeycomb structure.11. A method of making a nickel-iron-magnesium oxide catalyst claim 1 , said method comprising:(a) mixing nickel nitrate, iron nitrate, and magnesium nitrate in a solvent;(b) combining the solution of step (a) with a substrate support to form a mixture;{'sub': 1', '1, '(c) maintaining the mixture of step (b) at a first temperature (T) for a first duration of time (t);'}{'sub': 2', '2', '2', '1, '(d) increasing the temperature of the mixture in step (c) to a second temperature (T) and maintaining Tfor a second ...

METHOD FOR PREPARING CATALYST

The present invention relates to a method for preparing a catalyst and a method for preparing unsaturated carboxylic acid using the catalyst prepared according to the preparation method. According to the method for preparing a catalyst, unsaturated carboxylic acid can be provided from an unsaturated aldehyde with a high conversion rate and selectivity. 1. A method for preparing a catalyst represented by the following Chemical Formula 1 , comprising the steps of:mixing and stirring a metal precursor to prepare a slurry;drying the slurry at 110° C. to 130° C., and grinding, kneading, and conducting first compression molding;drying the first compression molded material at 110° C. to 130° C., and grinding and conducting second compression molding; andfiring the second compression molded material at 300° C. to 500° C., [{'br': None, 'ligand sublimation rate (wt %)=amount of sublimed ligand (kg)/amount of ligand before sublimation (kg)*100;\u2003\u2003[Mathematical Formula 1]'}, {'br': None, 'sub': 12', 'a', 'b', 'c', 'd', 'e', 'f', 'g, 'MoPABCDEO\u2003\u2003[Chemical Formula 1]'}], 'wherein a ligand sublimation rate calculated by the following Mathematical Formula 1 is 0 wt % or morewherein, in Chemical Formula 1,A is one or more elements selected from the group consisting of W, V, Nb, and Cr; B is one or more elements selected from the group consisting of As, B, Sb, Ce, Pd, and Te; C is one or more elements selected from the group consisting of Si, Al, Zr, Rh, Cu, Ti, Ag, and Sn; D is one or more elements selected from the group consisting of Na, K, Li, Rb, Cs, Ta, Ca, Mg, Sr, and Ba; and E is one or more elements selected from the group consisting of Fe, Co, and Ni, anda, b, c, d, e, f, and g represent the atomic ratio of each element, where a is 0.5 to 2, b is 0.01 to 10, c is 0 to 15, d is 0.01 to 20, e is 0.01 to 20, f is 0.01 to 15, and g is a value determined by the oxidation state of each atom.2. The method for preparing a catalyst according to claim 1 , wherein ...

ORGANIC MATERIAL DECOMPOSITION CATALYST AND ORGANIC MATERIAL DECOMPOSITION APPARATUS

An organic material decomposition catalyst that contains BaCOand a perovskite composite oxide represented by ABMO, wherein A contains Ba, B contains Zr, and M denotes Mn. A peak intensity I(BaCO(111)) of BaCO(111) of the BaCOand a peak intensity I(BaZrO(110)) of a perovskite composite oxide ABMO(110) of the perovskite composite oxide represented by ABMO, each determined by X-ray diffractometry of the organic material decomposition catalyst, have a ratio I(BaCO(111))/I(BaZrO(110)) in a range of 0.022 to 0.052. In another aspect, in the perovskite composite oxide represented by ABMO, 1.01≤x≤1.06, 0.1≤z≤0.125, and y+z=1 are satisfied, w denotes a positive value that satisfies electroneutrality, and the organic material decomposition catalyst has a specific surface area in the range of 12.3 to 16.9 m/g. 1. An organic material decomposition catalyst , comprising:{'sub': '3', '#text': 'BaCO; and'}{'sub': ['x', 'y', 'z', 'w'], '#text': 'a perovskite composite oxide represented by ABMO, wherein A contains Ba, B contains Zr, and M denotes Mn,'}{'sub': ['3', '3', '3', '3', 'x', 'y', 'z', 'w', 'x', 'y', 'z', 'w', '3', '3'], '#text': 'wherein a peak intensity I(BaCO(111)) of BaCO(111) of the BaCOand a peak intensity I(BaZrO(110)) of a perovskite composite oxide ABMO(110) of the perovskite composite oxide represented by ABMO, each determined by X-ray diffractometry of the organic material decomposition catalyst, have a ratio I(BaCO(111))/I(BaZrO(110)) in a range of 0.022 to 0.052.'}2. The organic material decomposition catalyst according to claim 1 , wherein the organic material decomposition catalyst has a specific surface area in a range of 12.3 to 16.9 m/g.3. The organic material decomposition catalyst according to claim 2 , wherein the ratio I(BaCO(111))/I(BaZrO(110)) ranges from 0.022 to 0.041.4. The organic material decomposition catalyst according to claim 3 , wherein the organic material decomposition catalyst has a specific surface area in the range of 12.3 to 13.5 m/g. ...

CATALYSTS COMPRISING A ZIRCONIA AND GALLIUM OXIDE COMPONENT FOR PRODUCTION OF C2 TO C4 OLEFINS

A process for preparing Cto Colefins includes introducing a feed stream comprising hydrogen gas and a carbon-containing gas selected from carbon monoxide, carbon dioxide, and mixtures thereof into a reaction zone of a reactor. The feed stream is converted into a product stream including Cto Colefins in the reaction zone in the presence of the hybrid catalyst. The hybrid catalyst includes a metal oxide catalyst component comprising gallium oxide and phase pure zirconia, and a microporous catalyst component. 1. A process for preparing Cto Colefins comprising:introducing a feed stream comprising hydrogen gas and a carbon-containing gas selected from the group consisting of carbon monoxide, carbon dioxide, and mixtures thereof into a reaction zone of a reactor; and{'sub': 2', '4, 'claim-text': a metal oxide catalyst component comprising gallium oxide and phase pure zirconia; and', 'a microporous catalyst component., 'converting the feed stream into a product stream comprising Cto Colefins in the reaction zone in the presence of a hybrid catalyst, the hybrid catalyst comprising2. The process of claim 1 , wherein the phase pure zirconia comprises crystalline phase pure zirconia.3. The process of claim 1 , wherein the phase pure zirconia comprises monoclinic phase pure zirconia.4. The process of claim 1 , wherein the phase pure zirconia has a BET surface area that is greater than or equal to 40 m/g.5. The process of claim 1 , wherein the phase pure zirconia has a BET surface area that is greater than or equal to 100 m/g.6. The process of claim 1 , wherein the metal oxide catalyst component comprises from greater than 0.0 g gallium per 100 g phase pure zirconia to 30.0 g gallium per 100 g of phase pure zirconia.7. The process of claim 1 , wherein the metal oxide catalyst component comprises from greater than 0.0 g gallium per 100 g phase pure zirconia to 15.0 g gallium per 100 g of phase pure zirconia.8. The process of claim 1 , wherein microporous catalyst component ...

METHOD AND CATALYST FOR THE PRODUCTION OF 1,3-BUTADIENE FROM ETHANOL

The present invention is concerned with a catalyst for the conversion of ethanol to 1,3-butadiene comprising a component A selected from the list consisting of zeolite, silicon dioxide, aluminium oxide, or any combination thereof; and a component Bcomprising a mixed metal oxide, a catalyst precursor for the preparation of a catalyst for the conversion of ethanol to 1,3-butadiene comprising a component A selected from the list consisting of zeolite, silicon dioxide, aluminium oxide, or any combination thereof; and a component Bcomprising a layered double hydroxide (LDH) as well as a process for the conversion of ethanol to 1,3-butadiene, in which said catalyst is used. 1. A catalyst for the conversion of ethanol to 1 ,3-butadiene comprisingi) component A, which is selected from a list consisting of zeolite, silicon dioxide, aluminum oxide, or any combination thereof; and{'sub': 'cat', 'ii) component Bcomprising a mixed metal oxide.'}2. The catalyst according to claim 1 , wherein the weight ratio of component A to component Bis in the range from 1:0.05 to 1:2.5.3. The catalyst according to claim 1 , wherein the mixed metal oxide is a layered double oxide (LDO).4. The catalyst according to claim 1 , wherein the catalyst has a core-shell structure claim 1 , wherein the core of the core-shell structure comprises component A and the shell of the core-shell-structure comprises component B.5. A catalyst precursor for the preparation of a catalyst for the conversion of ethanol to 1 claim 1 ,3-butadiene comprisingi) component A, which is selected from a list consisting of zeolite, silicon dioxide, aluminum oxide, or any combination thereof; and{'sub': 'pre', 'ii) component Bcomprising a layered double hydroxide (LDH).'}6. The catalyst precursor according to claim 5 , wherein the weight ratio of component A to component Bis in the range from 1:0.1 to 1 :5.7. The catalyst precursor according to claim 5 , wherein the catalyst precursor has a core-shell structure claim 5 , ...

CATALYTIC UPCYCLING OF POLYOLEFINS INTO LUBRICANTS

A method of upcycling polymers to useful hydrocarbon materials. A catalyst with nanoparticles on a substrate selectively docks and cleaves longer hydrocarbon chains over shorter hydrocarbon chains. The nanoparticles exhibit an edge to facet ratio to provide for more interactions with the facets. 1. A method producing a lubricant comprising:exposing, at a temperature of 150-350° C. and a pressure of 100-200 psi for 12-72 hours, a plurality polymer molecules to a catalyst comprising a substrate having a plurality of catalytic nanoparticles deposited thereon;docking a first polymer molecule of the plurality of polymer molecules to the catalyst;cleaving at least one carbon-carbon bond of the first polymer molecule;forming a plurality of hydrocarbon fragments from the cleaving;selectively docking to the catalyst a second polymer molecule of the plurality of polymer molecules, preferentially over the plurality of hydrocarbon fragments;cleaving at least one carbon-carbon bond of the second polymer molecule; andforming a second plurality of hydrocarbon fragments.2. The method of claim 1 , wherein exposing the plurality of polymer molecules is for at least 24 hours.3. The method of claim 1 , wherein the plurality of catalytic nanoparticles comprise Pt or Ni.4. The method of claim 1 , wherein the substrate comprises a perovskite.5. The method of claim 4 , wherein the substrate comprises strontium titanate.6. The method of claim 3 , wherein the substrate comprises alumina.7. The method of claim 1 , wherein the plurality of polymer molecules are solvent-free.8. The method of claim 1 , wherein the plurality of polymer molecules have a molecular weight ranging from 400-1000 Da.9. The method of claim 8 , wherein the plurality of hydrocarbon fragments are C30 to C76 alkanes.10. The method of claim 9 , wherein the plurality of hydrocarbon fragments have 10 branches per 1000 carbon to 400 branches per 1000 carbon.11. The method of claim 10 , wherein the plurality of hydrocarbon ...

Supported indium oxide catalyst and process for methanol synthesis using the same

The invention relates to a process for methanol synthesis comprising the steps of providing a syngas feed stream comprising hydrogen and carbon oxides selected from carbon dioxide or a mixture of carbon dioxide and carbon monoxide, wherein carbon dioxide represents from 1 to 50 mol % of the total molar content of the feed stream, carbon monoxide is contained from 0 to 85 mol % of the total molar content, and H2 is comprised from 5 to 95 mol % of the total molar content of the feed stream, and a catalyst comprising indium oxide (In2O3) on a support wherein the support comprises zirconium dioxide or is zirconium dioxide; putting in contact said stream with said supported catalyst at a reaction temperature of at least 373 K (99.85° C.) and under a pressure ranging of at least 1 MPa; and recovering the methanol effluents. The invention also relates to a supported indium oxide catalyst.

CATALYSTS FOR THE REFORMING OF GASEOUS MIXTURES

Pyrochlore-based solid mixed oxide materials suitable for use in catalysing a hydrocarbon reforming reaction are disclosed, as well as methods of preparing the materials, and their uses in hydrocarbon reforming processes. The materials contain a catalytic quantity of inexpensive nickel and exhibit catalytic properties in dry reforming reactions that are comparable—if not better—than those observed using expensive noble metal-containing catalysts. Moreover, the Pyrochlore-based solid mixed oxide materials can be used in low temperature dry reforming reactions, where other catalysts would become deactivated due to coking. Accordingly, the catalytic materials represent a sizeable development in the industrial-scale reforming of hydrocarbons. 1. A solid mixed oxide material suitable for use in catalysing a methane dry reforming reaction , wherein the solid mixed oxide material comprises a first crystalline phase , the first crystalline phase being attributable to a pyrochlore crystal structure , and wherein the solid mixed oxide material comprises 3.5-25.0% of nickel by weight relative to the total weight of the solid mixed oxide material.2. The solid mixed oxide material of claim 1 , wherein the solid mixed oxide material comprises 5.0-25.0% of nickel by weight relative to the total weight of the solid mixed oxide material.3. The solid mixed oxide material of or claim 1 , wherein the solid mixed oxide material comprises 7.5-20.0% of nickel by weight relative to the total weight of the solid mixed oxide material.4. The solid mixed oxide material of any one of claim 1 , or claim 1 , wherein the solid mixed oxide material comprises 9.0-15.0% of nickel by weight relative to the total weight of the solid mixed oxide material.5. The solid mixed oxide material of any preceding claim claim 1 , wherein the first crystalline phase has a composition according to general formula (I) shown below{'br': None, 'sub': 2', '2', '7, 'ABO\u2003\u2003 (I)'} A is at least one trivalent ...

HYDROGENOLYSIS CATALYSTS WITH HIGH ACID TOLERANCE

A catalyst includes a mixed metal oxide; an alumina; silica, and calcium, where the mixed metal oxide includes Cu and at least one of Mn, Zn, Ni, or Co. Such catalysts exhibit enhanced tolerance sulfur-containing compounds and free fatty acids. 1. A catalyst comprising:a mixed metal oxide comprising Cu and at least one of Mn, Zn, Ni, or Co;an alumina;silica; andcalcium;wherein the catalyst comprises a surface, wherein the percent of Cu at the surface in relation to total Cu content of the catalyst is from about 0.5% to about 20%.2. (canceled)3. The catalyst of claim 1 , wherein the catalyst comprises about 15 wt % to about 50 wt % Cu.4. The catalyst of claim 1 , wherein the mixed metal oxide comprises Cu and Mn.5. The catalyst of claim 4 , wherein the mixed metal oxide comprises Cu and Mn claim 4 , and the catalyst comprises about 2 wt % to about 10 wt % Mn.6. (canceled)7. The catalyst of claim 4 , wherein the mixed metal oxide comprises Cu and Zn claim 4 , and the catalyst comprises about 15 wt % to about 50 wt % Zn.8. The catalyst of claim 1 , wherein the alumina is present in the catalyst at about 10 wt % to about 30 wt %.9. The catalyst of claim 1 , wherein the silica is present in the catalyst at about 10 wt % to about 30 wt %.10. (canceled)11. The catalyst of claim 1 , wherein the calcium is present in the catalyst at about 2 wt % to about 10 wt %.12. (canceled)13. The catalyst of claim 1 , wherein the catalyst is substantially free of sodium claim 1 , chromium claim 1 , barium claim 1 , or a combination of two or more thereof.1415-. (canceled)16. The catalyst of claim 1 , wherein the catalyst has a Brunauer-Emmett-Teller surface area from about 10 m/g to about 150 m/g.17. (canceled)18. The catalyst of claim 1 , wherein the catalyst has a mercury pore volume from about 0.10 cm/g to about 0.80 cm/g.19. The catalyst of claim 1 , wherein the catalyst has a packed ambient bulk density from about 0.3 g/cmto about 1.6 g/cm.20. The catalyst of claim 1 , wherein the ...

NOx Trap Catalyst Support Material with Improved Stability Against BaAl2O4 Formation

The present invention relates to a method for the production of a support material for a nitrogen oxide storage component that is applicable in catalysts for treating exhaust gases from lean-burn engines and a support material made according to said process that is stable against the reaction with a Barium compound to form BaAl 2 O 4 .

CATALYST FOR FIXED BED ANILINE RECTIFICATION RESIDUE RECYCLING AND PREPARATION METHOD

The present invention relates to a catalyst for fixed bed aniline rectification residue recycling and preparation method thereof. Based on the total weight of the catalyst, the catalyst comprises the following components in percentage by weight: 5-40% of an active component, 2-30% of a first cocatalyst component, 10-30% of a second cocatalyst component and the balance of carrier, wherein the active component is NiO; the first cocatalyst component is one or more of Fe, Mo, Cr or Co oxide; and the second cocatalyst component is one or more of La, Zr, Y or Ce oxide. The catalyst is prepared through co-precipitation. The catalyst shows high activity and stability in the waste liquid treatment process, and can still maintain high rectification residue cracking rate after reaction of 200 hours. 1. A process of recycling aniline rectification residue , comprising subjecting the aniline rectification residue to fixed bed hydrogenation with a catalyst , wherein said catalyst comprises the components described below based on the total weight of the catalyst:5-40 wt % of NiO as an active component,2-30 wt % of one or more selected from oxides of Fe, oxides of Mo, oxides of Cr and oxides of Co as a first cocatalyst component,10-30 wt % of one or more selected from oxides of La, oxides of Zr, oxides of Y and oxides of Ce as a second cocatalyst component,the remaining portion being the support.2. The process of claim 1 , wherein said catalyst comprises the components described below based on the total weight of the catalyst:15-30 wt % of NiO as the active component,5-25 wt % of one or more selected from oxides of Fe, oxides of Mo, oxides of Cr and oxides of Co as the first cocatalyst component,15-25 wt % of one or more selected from oxides of La, oxides of Zr, oxides of Y and oxides of Ce as the second cocatalyst component,the remaining portion being the support.3. The process of claim 1 , wherein the support is SiO.4. The process of claim 1 , wherein the aniline rectification ...

METHOD OF MAKING MESOPOROUS OXYGEN STORAGE MATERIALS FOR EXHAUST GAS TREATMENT; SAID OXYGEN STORAGE MATERIALS AND THEIR USE

A method of making an oxygen storage material (OSM) with developed mesoporosity having a small fraction of pores <10 nm (fresh or aged), and resistance to thermal sintering is provided. This OSM is suitable for use as a catalyst and catalyst support. The method of making this oxygen storage material (OSM) includes the preparation of a solution containing pre-polymerized zirconium oligomers, cerium, rare earth and transition metal salts; the interaction of this solution with a complexing agent that has an affinity towards zirconium; the formation of a zirconium-based precursor; and the co-precipitation of all constituent metal hydroxide with abase. 1. A method for making mesoporous an Oxygen Storage Material (OSM) , the method comprising the steps of:(a) preparing an acidic solution containing polymerized zirconium oligomers;(b) adding an acidic solution of cerium and rare earth salts to the zirconium containing solution to make a polyvalent metal containing mixture;(c) allowing for the interaction of the acidic polyvalent metal containing mixture with a solution of a complexing reagent that exhibits an affinity towards zirconium;(d) forming a zirconium-based precursor slurry;(e) neutralizing the zirconium containing precursor slurry with a base to achieve co-precipitation of any constituent metal hydroxides;(f) washing the precipitated mixed oxide material with water to remove cationic and anionic admixtures;(g) ageing the freshly precipitated mixed oxide material at ambient or, alternatively at an elevated temperature;(h) drying the wet mixed oxide material; and(i) calcining the mixed oxide material to form the OSM;wherein the OSM has a fraction of 2-10 nm pores that is less than 20%.2. The method for making the OSM according to claim 1 , wherein the polymerized zirconium oligomers comprise zirconium octamers in an amount ranging from about 30 to 100%.3. The method for making the OSM according to claim 1 , wherein the polymerized zirconium oligomers do not contain ...

Automotive Catalysts With Palladium Supported In An Alumina-Free Layer

Catalysts that improve carbon monoxide (CO), hydrocarbon (HC), Catalyst outlet temperature and speed traces of and nitrogen oxides (NOx) light-off performance are provided. A catalyst composite for combustion engines, as provided herein, comprises a carrier and a first layer comprising a catalytic material on the carrier, the catalytic material comprising a palladium component supported on both a ceria-praseodymia-based oxygen storage component and a ceria-zirconia-based oxygen storage component, wherein the first layer is essentially free of alumina. The catalytic material is effective to substantially simultaneously oxidize carbon monoxide and hydrocarbons and reduce nitrogen oxides. 1. A catalyst composite for combustion engines comprising: a carrier and a first layer comprising a catalytic material on the carrier , the catalytic material comprisinga palladium component supported on both a ceria-praseodymia-based oxygen storage component and a ceria-zirconia-based oxygen storage component;wherein the first layer is essentially free of alumina.2. The composite of claim 1 , wherein the catalytic material is effective to substantially simultaneously oxidize carbon monoxide and hydrocarbons and reduce nitrogen oxides present in a gaseous exhaust gas stream produced from the combustion engine.3. The composite of claim 1 , wherein the ceria-praseodymia-based oxygen storage component comprises claim 1 , by weight on an oxide basis: about 30 to about 60% Ce; about 10 to about 50% Pr; 0 to about 30% rare earth elements selected from the group consisting of La claim 1 , Y claim 1 , and Nd; and less than or equal to about 10% Zr.4. The composite of claim 1 , wherein the ceria-zirconia-based oxygen storage component comprises claim 1 , by weight on an oxide basis: about 10 to about 70% Ce; about 15 to about 90% Zr; and 0 to about 25% rare earth elements selected from the group consisting of La claim 1 , Y claim 1 , Pr claim 1 , and Nd.5. The composite of claim 1 , wherein ...

IMPROVED CATALYST FOR DEHYDROGENATING HYDROCARBONS

The present invention relates to a catalyst for the dehydrogenation of hydrocarbons which is based on iron oxide and a process for producing it. The catalyst comprises at least one iron compound, at least one potassium compound and from 11 to 24% by weight of at least one cerium compound, calculated as CeO, wherein the at least one iron compound and the at least one potassium compound are at least partly present in the form of one or more K/Fe mixed oxide phases of the general formula KFeO, where x is from 1 to 17; y is from 1 to 22 and z is from 2 to 34, and comprises at least 50% by weight, based on the total catalyst, of the K/Fe mixed oxide phases, and also a process for producing it. 115.-. (canceled)16. A dehydrogenation catalyst comprisingat least one iron compound,at least one potassium compound and{'sub': '2', 'from 11 to 24% by weight, based on the total catalyst, of at least one cerium compound, calculated as CeO,'} {'br': None, 'sub': x', 'y', 'z, 'KFeO,'}, 'wherein the at least one iron compound and the at least one potassium compound are at least partly present in the form of one or more K/Fe mixed oxide phases of the general formula'}where x is from 1 to 17; y is from 1 to 22 and z is from 2 to 34, where the catalyst comprises at least 50% by weight, based on the total catalyst, of the one or more K/Fe mixed oxide phases.17. The dehydrogenation catalyst according to claim 16 , wherein the catalyst comprises from 15 to 20% by weight of the at least one cerium compound claim 16 , calculated as CeO.18. The dehydrogenation catalyst according to claim 16 , wherein the catalyst comprises at least 60% by weight claim 16 , based on the total catalyst claim 16 , of the one or more K/Fe mixed oxide phases.19. The dehydrogenation catalyst according to claim 16 , wherein the catalyst comprises from 60 to 89% by weight claim 16 , based on the total catalyst claim 16 , of the one or more K/Fe mixed oxide phases.20. The dehydrogenation catalyst according to claim 16 ...

Exhaust gas-purifying catalyst composition and method for producing the same, and automobile exhaust gas-purifying catalyst

There are provided an exhaust gas-purifying catalyst composition that can purify hydrocarbons, carbon monoxide, nitrogen oxides, and the like discharged from an internal combustion engine or the like, and can maintain excellent purification performance particularly under a wide range of conditions from low temperature to high temperature, and a method for producing the same, and an automobile exhaust gas-purifying catalyst. The present invention provides an exhaust gas-purifying catalyst composition for purifying carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx), and the like in exhaust gas, comprising at least Rh; a complex oxide that is a particular Ce-containing component (A) and/or a particular Zr-containing component (B); and alumina, wherein Rh is supported on alumina together with the complex oxide, an amount of Rh supported is 0.01 to 5 wt % based on a total amount of Rh, the complex oxide, and alumina, and a content of the complex oxide is 0.1 to 30 wt % in total based on the total amount of Rh, the complex oxide, and alumina, and the like.

Organic matter decomposition catalyst, organic matter decomposition aggregate, and organic matter decomposition apparatus

An organic matter decomposition catalyst that contains a perovskite type complex oxide represented by A x B y M z O w , wherein A contains 90 at % or more of at least one element selected from the group consisting of Ba and Sr, B contains 80 at % or more of Zr, M is at least one element selected from the group consisting of Mn, Co, Ni, and Fe, y+z=1, x>1, z<0.4, and w is a positive value that satisfies electrical neutrality.

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.

(Meth)acrolein Oxidation Catalyst and Preparation Method Thereof

A (methyl)acrolein oxidation catalyst and a preparation method therefor-in which the catalyst has a composition represented by the following formula: x(Mo12PaCsbVcDeOf)+tC/yZ in which MoPCsVDOis a heteropolyacid salt main catalyst; C is a nano carbon fiber additive, and Z is a carrier thermal conduction diluent; Mo, P, Cs, V, and O represent the elements of molybdenum, phosphorus, cesium, vanadium, and oxygen, respectively; D represents at least one element selected from the group consisting of copper, iron, magnesium, manganese, antimony, zinc, tungsten, silicon, nickel, and palladium; a, b, c, e, and f represent the atomic ratio of each element, a=0.1-3, b=0.01-3, c=0.01-5, e=0.01-2, and f being the atomic ratio of oxygen required to satisfy the valence of each of the described components; x and y represent the weights of the main catalyst and the carrier thermal conduction diluent Z, and y/x=11.1-50%; and t represents the weight of the nano carbon fiber, and t/x=3-10%. 1. A heteropolyacid catalyst for preparing (meth)acrylic acid by oxidation of (meth)acrolein , wherein the catalyst has a composition represented by the following formula:{'br': None, 'sub': 12', 'a', 'b', 'c', 'e', 'f, 'x(MoPCsVDO)+tC/yZ'}{'sub': 12', 'a', 'b', 'c', 'e', 'f, 'wherein MoPCsVDOis a primary catalyst of heteropolyacid salt, C is a nanocarbon fiber additive, and Z is a support/heat conducting diluent;'}Mo, P, Cs, V and O represent elements of molybdenum, phosphorus, cesium, vanadium and oxygen respectively;D represents at least one element selected from the group consisting of copper, iron, magnesium, manganese, antimony, zinc, tungsten, silicon, nickel, and palladium;{'sub': 2', '3', '3', '2, 'Z is selected from the group consisting of SiC, SiO, MoO, WO, TiO, and mixtures thereof in any ratios;'}a, b, c, e, and f represent the atomic proportions of the elements, wherein a=0.1-3, b=0.01-3, c=0.01-5, e=0.01-2, and f is an atomic proportion of oxygen needed to satisfy the valences of the ...

PROCESS FOR PREPARING MODIFIED V-TI-P CATALYSTS FOR SYNTHESIS OF 2,3-UNSATURATED CARBOXYLIC ACIDS

The invention relates to a catalyst composition comprising a mixed oxide of vanadium, titanium, and phosphorus modified with alkali metal. The titanium component is derived from a water-soluble, redox-active organo-titanium compound. The catalyst composition is highly effective at facilitating the vapor-phase condensation of formaldehyde with acetic acid to generate acrylic acid, particularly using an industrially relevant aqueous liquid feed. 1. A process for preparing a 2 ,3-unsaturated carboxylic acid , comprising:contacting a formaldehyde source with a carboxylic acid in the presence of a condensation catalyst under vapor-phase condensation conditions to obtain the 2,3-unsaturated carboxylic acid,wherein the condensation catalyst comprises a mixed oxide of vanadium (V), titanium (Ti), phosphorus (P), and alkali metal (M), andwherein the titanium component is derived from an organo-titanium compound, wherein the organo-titanium compound is titanium(IV) bis(ammonium lactate)dihydroxide.2. The process according to claim 1 , wherein the formaldehyde source is formaldehyde claim 1 , 1 claim 1 ,3 claim 1 ,5-trioxane claim 1 , dimethoxymethane claim 1 , or diacetoxymethane and the carboxylic acid is acetic acid or propionic acid.3. The process according to claim 1 , wherein the formaldehyde source is an aqueous solution of formaldehyde claim 1 , 1 claim 1 ,3 claim 1 ,5-trioxane claim 1 , dimethoxymethane claim 1 , or diacetoxymethane and the carboxylic acid is acetic acid or propionic acid.4. The process according to claim 3 , wherein the aqueous solution comprises from 30 to 65 weight percent of formaldehyde.5. The process according to claim 1 , wherein the alkali metal is selected from at least one of lithium claim 1 , sodium claim 1 , potassium claim 1 , rubidium claim 1 , and cesium.6. The process according to claim 1 , wherein the alkali metal comprises potassium.7. The process according to claim 1 , wherein the catalyst composition further comprises a pre-shaped ...

ANODE FOR ALKALINE WATER ELECTROLYSIS AND METHOD FOR PRODUCING ANODE FOR ALKALINE WATER ELECTROLYSIS

Provided are an anode for alkaline water electrolysis that can achieve a low overpotential at low cost, and a method for producing the anode for alkaline water electrolysis. 1. An anode for alkaline water electrolysis comprising a conductive substrate having at least a surface composed of nickel or a nickel-based alloy , and an electrode catalyst layer formed on the surface of the conductive substrate , whereina catalyst component that constitutes the electrode catalyst layer comprises:{'sub': 2', '4', 'a', '1-a', '3, 'a first catalyst component having a nickel-cobalt spinel oxide represented by a structural formula NiCoO, or a lanthanide-nickel-cobalt perovskite oxide represented by a structural formula XNiCoO(wherein X represents at least one metal selected from among lanthanides including lanthanum, cerium and praseodymium, and 0 Подробнее

YTTRIUM-CONTAINING CATALYST FOR HIGH-TEMPERATURE CARBON DIOXIDE HYDRATION, COMBINED HIGH-TEMPERATURE CARBON DIOXIDE HYDRATION, AND REFORMING AND/OR REFORMING, AND A METHOD FOR HIGH-TEMPERATURE CARBON DIOXIDE HYDRATION, COMBINED HIGH-TEMPERATURE CARBON DIOXIDE HYDRATION AND REFORMING AND/OR REFORMING

The invention relates to a process for producing a catalyst for the high-temperature processes (i) carbon dioxide hydrogenation, (ii) combined high-temperature carbon dioxide hydrogenation and reforming and/or (iii) reforming of hydrocarbon-comprising compounds and/or carbon dioxide and the use of the catalyst of the invention in the reforming and/or hydrogenation of hydrocarbons, preferably methane, and/or of carbon dioxide. To produce the catalyst, an aluminum source, which preferably comprises a water-soluble precursor source, is brought into contact with an yttrium-comprising metal salt solution, dried and calcined. The metal salt solution comprises, in addition to the yttrium species, at least one element from the group consisting of cobalt, copper, nickel, iron and zinc. 1. A catalyst precursor , comprising at least one crystalline material which comprises yttrium and aluminum and has the characteristic that it has a cubic garnet structure , where the catalyst precursor comprises Cu , Zn , Fe , Co and/or Ni and where part of the yttrium and/or aluminum species in the crystalline material is replaced by at least one element selected from the group consisting of Cu , Zn , Ni , Co , and Fe , where a proportion of secondary phases is in the range from 0-49% by weight.2. The catalyst precursor according to claim 1 , wherein the yttrium content is in the range 15-80 mol % and the aluminum content is in the range 10-90 mol % claim 1 , where the total content of elements selected from the group consisting of Cu claim 1 , Zn claim 1 , Ni claim 1 , Co claim 1 , Fe is in the range of 0.01-10 mol %.3. The catalyst precursor according to claim 1 , wherein the catalyst precursor comprises claim 1 , in addition to a main phase cubic garnet structure claim 1 , at least one secondary phase present in a proportion in the range of 1-49% by weight.4. The catalyst precursor according to claim 1 , wherein the catalyst precursor has a BET surface area which is greater than 2 m2/g.5. ...

Multimetallic mixed oxides, its preparation and use for the oxidative dehydrogenation of ethane for producing ethylene

A layered multimetallic oxide catalyst having the formula M1 M2 M3 O δ wherein: M1 is selected from the group of Ag, Au, Zn, Sn, Rh, Pd, Pt, Cu, Ni, Fe, Co, an alkaline metal, an alkaline earth metal, a rare earth metal, and mixtures thereof; M2 is selected from the group of Ti, Hf, Zr, Sn, Bi, Sb, V, Nb, Ta and P, and mixtures thereof; M3 is selected from the group of Mo, W and Cr, and mixtures thereof; and where said multilayered metallic oxide exhibits a major X-ray diffraction peak between 5<2θ<15, is prepared by a process of mixing metallic precursors of M 1 , M 2 and M 3 to form a precursor mixture, hydrothermal treatment of the resulting mixture to obtain a homogeneous solid mixture, and thermally treating the solid mixture to activate the solid mixture and obtain said catalyst.

RESIDUE HYDROTREATMENT CATALYST COMPRISING VANADIUM, AND ITS USE IN A RESIDUE HYDROCONVERSION PROCESS

A catalyst containing a group VIB element; a group VIII element; phosphorus in a quantity of 0.1% to 9% by weight of phosphorus pentoxide with respect to the total catalyst mass; vanadium in a quantity of 0.25% to 7% by weight of vanadium pentoxide with respect to the total catalyst mass; a porous refractory oxide support; 2. A catalyst according to claim 1 , in which the vanadium content is in the range 0.5% to 5% by weight of vanadium pentoxide with respect to the total catalyst mass.3. A catalyst according to claim 2 , in which the vanadium content is in the range 0.6% to 4% by weight of vanadium pentoxide with respect to the total catalyst mass.4. A catalyst according to claim 1 , in which the quantity of metal from group VIB is in the range 2% to 20% by weight and the quantity of metal from group VIII is advantageously in the range 0.1% to 5% by weight claim 1 , the contents being expressed as the % of metallic oxide with respect to the total catalyst mass.5. A catalyst according to claim 1 , in which the oxide support comprises alumina in the major proportion.6. A catalyst according to claim 1 , in which the element from group VIB is molybdenum.7. A catalyst according to claim 1 , in which the element from group VIII is nickel or cobalt.8. A catalyst according to claim 1 , in which atomic ratio of vanadium to metals from group VIB is in the range 0.1:1 to 0.5:1.9. A catalyst according to claim 1 , in the partially or completely sulphurized form.10. A catalyst according to claim 1 , in which the median diameter of the mesopores is in the range 5 to 20 nm claim 1 , the total pore volume is 0.3 mL/g or more and the macropore volume is less than 10% of the total pore volume.11. A catalyst according to claim 1 , in which the median diameter of the mesopores is in the range 10 to 36 nm claim 1 , the total pore volume is 0.5 mL/g or more and the macropore volume is more than 5% of the total pore volume.12. A hydrotreatment process using at least one catalyst ...

PROCESS FOR PREPARING MODIFIED V-TI-P CATALYSTS FOR SYNTHESIS OF 2,3-UNSATURATED CARBOXYLIC ACIDS

The invention relates to a catalyst composition comprising a mixed oxide of vanadium, titanium, and phosphorus modified with alkali metal. The titanium component is derived from a water-soluble, redox-active organo-titanium compound. The catalyst composition is highly effective at facilitating the vapor-phase condensation of formaldehyde with acetic acid to generate acrylic acid, particularly using an industrially relevant aqueous liquid feed. 1. A catalyst composition comprising a mixed oxide of vanadium (V) , titanium (Ti) , phosphorus (P) , and alkali metal (M) , wherein the titanium component is the residue of an organo-titanium compound , wherein the organo-titanium compound is titanium(IV) bis(ammonium lactate)dihydroxide.2. The catalyst composition according to claim 1 , which has the general formula VTiPMO claim 1 , wherein a is a number from 0.3 to 6.0 claim 1 , b is a number from 2.0 to 13.0 claim 1 , c is a number from 0.01 to 1.25 claim 1 , and d is the number of atoms required to satisfy the valences of V claim 1 , Ti claim 1 , P claim 1 , and M.3. The catalyst composition according to claim 2 , wherein a ranges from 1.0 to 4.0 claim 2 , b ranges from 4.0 to 10.0 claim 2 , and c ranges from 0.25 to 0.75.4. The catalyst composition according to claim 1 , wherein the alkali metal is selected from at least one of lithium claim 1 , sodium claim 1 , potassium claim 1 , rubidium claim 1 , and cesium.5. The catalyst composition according to claim 1 , wherein the alkali metal comprises potassium.6. The catalyst composition according to claim 1 , which further comprises a pre-shaped support.7. The catalyst composition according to claim 6 , wherein the pre-shaped support comprises silica claim 6 , alumina claim 6 , titanium oxide claim 6 , titanium pyrophosphate claim 6 , zirconium oxide claim 6 , or zirconium pyrophosphate.8. The catalyst composition according to claim 6 , wherein the pre-shaped support has a particle size ranging from 0.1 mm to 20 mm. This ...

Mixed metal oxide catalysts for ammonia decomposition

Systems and methods for ammonia decomposition catalysts are described. Systems and methods may include providing a first solution, where the first solution includes a first metal soluble salt of cobalt, nickel, iron, and a combination thereof; a second metal soluble salt of magnesium, calcium, strontium, barium, and a combination thereof; a third metal soluble salt of lanthanide elements, and a combination thereof; and a fourth metal soluble salt of aluminum, transition metals, alkali metals, and a combination thereof. The first metal oxide, the second metal oxide, the third metal oxide, and the fourth metal oxide may be co-precipitated from the first solution at a pH between approximately 6.0 and approximately 11.0 to form a hydrotalcite-like structured material. The co-precipitated material may be aged and dried. The aged, dried, co-precipitated material may be decomposed to form a final catalyst product.

AMMONIA SYNTHESIS CATALYST AND AMMONIA SYNTHESIS METHOD

The ammonia synthesis catalyst of the present invention, comprises: a powder of a perovskite oxyhydride having hydride (H) incorporated therein as a support; and a metal or a metal compound exhibiting a catalytic activity for ammonia synthesis, supported on the support, and the perovskite oxyhydride is represented by ATiOH(wherein A represents Ca, Sr, or Ba, and 0.1≦x≦0.6). 1. An ammonia synthesis catalyst , comprising: a powder of a perovskite oxyhydride having hydride (H) incorporated therein as a support; and a metal or a metal compound exhibiting a catalytic activity for ammonia synthesis , supported on the support.2. The ammonia synthesis catalyst according to claim 1 , wherein the perovskite oxyhydride is represented by ATiOH(wherein A represents Ca claim 1 , Sr claim 1 , or Ba claim 1 , and 0.1≦x≦0.6).3. The ammonia synthesis catalyst according to claim 1 , wherein the perovskite oxyhydride further contains nitrogen.4. The ammonia synthesis catalyst according to claim 3 , wherein the perovskite oxyhydride is represented by ATi(OHN) (wherein A represents Ca claim 3 , Sr claim 3 , or Ba claim 3 , and 0.1≦x≦0.6 claim 3 , 0 Подробнее

PEROVSKITE CATALYSTS ENHANCED COMBUSTION ON POROUS MEDIA

The effects of different perovskite catalysts, catalytic active materials with a crystal structure of ABO, on matrix stabilized combustion in a porous ceramic media are explored. Highly porous silicon carbide ceramics are used as a porous media for a catalytically enhanced matrix stabilized combustion of a lean mixture of methane and air. A stainless steel combustion chamber was designed incorporating a window for direct observation of the flame within the porous media. Perovskite catalytic enhancement of SiC porous matrix with La0.75Sr0.25Fe0.6Cr0.35Ru0.05O3; La0.75Sr0.25Fe0.6Cr0.4O3; La0.75Sr0.25Fe0.95Ru0.05O3; La0.75Sr0.25Cr0.95Ru0.05O3; and LaFe0.95Ru0.05O3, for example, were used to enhance combustion. The flammability limits of the combustion of methane and air were explored using both inert and catalytically enhanced surfaces of the porous ceramic media. By coating the SiC porous media with perovskite catalysts it was possible to lower the minimum stable equivalence ratio. 1. A matrix stabilized porous burner comprising:{'sub': 0.75', '0.25', '0.6', '0.35', '0.05', '3', '0.75', '0.25', '0.6', '0.4', '3', '0.75', '0.25', '0.95', '0.05', '3', '0.75', '0.05', '0.95', '0.05', '3', '0.95', '0.05', '3, 'a combustion chamber comprising a porous ceramic matrix catalytically enhanced with a perovskite catalyst composition selected from the group consisting of LaSrFeCrRuO; LaSrFeCrO; LaSrFeRuO; LaSrCrRuO; and LaFeRuO.'}2. The burner of claim 1 , wherein the porous ceramic matrix comprises a silicon carbide porous ceramic matrix portion claim 1 , and the perovskite catalyst is coated on the surface of the porous silicon carbide ceramic matrix portion.3. The burner of claim 2 , wherein the porous ceramic matrix further comprises an alumina porous ceramic matrix portion positioned adjacent to the silicon carbide porous ceramic matrix portion.4. The burner of claim 1 , wherein the burner produces a stabilized combustion of a lean mixture of natural gas and air.5. The ...

A MOLDING COMPRISING A MIXED OXIDE COMPRISING OXYGEN, LANTHANUM, ALUMINUM, AND COBALT

A molding comprising a mixed oxide, wherein the mixed oxide comprises oxygen, lanthanum, aluminum, and cobalt, wherein in the mixed oxide, the weight ratio of cobalt relative to aluminum, calculated as elements, is at least 0.17:1. A preparation method by a dry route. Use of the molding as a catalyst for the reforming of hydrocarbons into a synthesis gas.

NOVEL TRI-METAL PGM CATALYSTS FOR GASOLINE ENGINE EXHAUST GAS TREATMENTS

A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; a first catalytic region comprising a first platinum group metal (PGM) component, wherein the first PGM component comprises Rh and Pt; a second catalytic region comprising a second PGM component, wherein the second PGM component comprises Pd; and wherein the first PGM component has a Pt to Rh ratio of at least 1:20.

TWC CATALYSTS FOR GASOLINE ENGINE EXHAUST GAS TREATMENTS

A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; a first catalytic region comprising a first platinum group metal (PGM) component supported on a first PGM support material, wherein the first PGM component comprises rhodium (Rh) and platinum (Pt); and wherein Pt and Rh has a weight ratio of at least 1:10.

NO Oxidation Activity of Pseudo-brookite Compositions as Zero-PGM Catalysts for Diesel Oxidation Applications

Zero-PGM (ZPGM) catalyst materials including pseudo-brookite compositions for use in diesel oxidation catalyst (DOC) applications are disclosed. The disclosed doped pseudo-brookite compositions include A-site partially doped pseudo-brookite compositions, such as, Sr-doped and Ce-doped pseudo-brookite compositions, as well as B-site partially doped pseudo-brookite compositions, such as, Fe-doped, Co-doped, Ni-doped, and Ti-doped pseudo-brookite compositions. The disclosed doped pseudo-brookite compositions, including calcination at various temperatures, are subjected to a DOC standard light-off (LO) test methodology to assess/verify catalyst activity as well as to determine the effect of the use of a dopant in an A-site cation or a B-site cation within a pseudo-brookite composition. The disclosed doped pseudo-brookite compositions exhibit higher NO oxidation catalyst activities when compared to bulk powder pseudo-brookite, thereby indicating improved thermal stability and catalyst activity when using a dopant in an A-site cation or in a B-site cation within a pseudo-brookite composition. 1. A catalyst composition comprising a pseudo-brookite structured compound of general formula YAMnBO , wherein the pseudo-brookite structured compound includes yttrium and manganese , wherein at least one selected from the group consisting of x and y is greater than 0 , and wherein A and B are cations selected from the group consisting of cerium (Ce) , strontium (Sr) , iron (Fe) , cobalt (Co) , nickel (Ni) , and titanium (Ti).2. The catalyst composition of claim 1 , wherein A is a cation selected from the group consisting of Ce and Sr claim 1 , and wherein x is about 0.01 to about 0.5.3. The catalyst composition of claim 2 , wherein x is about 0.1.4. The catalyst composition of claim 2 , wherein A is Ce.5. The catalyst composition of claim 2 , wherein A is Sr.6. The catalyst composition of claim 2 , wherein the catalyst composition is calcined at a temperature from about 800° C. to ...

NOVEL CATALYTIC PROCESS FOR OXIDATIVE COUPLING OF METHANE

Supported oxidative coupling of methane (OCM) catalysts, methods of making the catalysts, and uses thereof are described. A supported OCM) catalyst can include a nonporous inert support having a high thermal conductivity and an OCM mixed metal oxide material in contact with surface of the nonporous inert support. 1. A supported oxidative coupling of methane (OCM) catalyst comprising:a nonporous inert support having a high thermal conductivity; andan OCM mixed metal oxide material in contact with surface of the nonporous inert support.2. The supported OCM catalyst of claim 1 , wherein the mixed metal oxide material is a p-type semiconductor material.3. The supported OCM catalyst of claim 1 , wherein the nonporous support has a thermal conductivity of 50 to 500 W/m-K claim 1 , 75 to 300 W/m-K claim 1 , or 100 to 200 W/m-K.4. The supported OCM catalyst of claim 1 , wherein the support is nonporous silicon carbide (SiC) having a thermal conductivity of 50 to 200 W/m-K claim 1 , or 50 to 150 W/m-K.5. The supported OCM catalyst of claim 1 , wherein the mixed metal oxide material is adhered to claim 1 , or coated on claim 1 , at least a portion of the surface of the nonporous inert support.6. The supported OCM catalyst of claim 1 , wherein the mixed metal oxide material forms a layer that covers at least a portion of the surface of the nonporous inert support that is 0.1 to up to 100 microns thick claim 1 , preferably 1 to 50 microns thick.7. The supported OCM catalyst of claim 1 , wherein the mixed metal oxide material comprises at least one lanthanide doped with at least one of a Column 2 metal claim 1 , a Column 4 metal claim 1 , a Column 13 metal claim 1 , or any oxide thereof.8. The supported OCM catalyst of claim 7 , wherein the lanthanide is lanthanum (La) claim 7 , cerium (Ce) claim 7 , ytterbium (Yb) claim 7 , neodymium (Nd) claim 7 , promethium (Pm) claim 7 , samarium (Sm) claim 7 , europium (Eu) claim 7 , gadolinium (Gd) claim 7 , terbium (Tb) claim 7 , ...

Mixed Oxides Catalysts for Oxidative Coupling of Methane

An OCM catalyst composition characterized by general formula ALaEDO; wherein A is an alkaline earth metal; wherein E is a first rare earth element; wherein D is a redox agent or a second rare earth element; wherein the first rare earth element and second rare earth element are different; wherein a is 1.0; wherein b is 0.01-10.0; wherein c is 0-10.0; wherein d is 0-10.0; and wherein x balances the oxidation states. The alkaline earth metal is selected from the group consisting of Mg, Ca, Sr, Ba, and combinations thereof. The first rare earth element and the second rare earth element can each independently be selected from the group consisting of Sc, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Y, Tb, Dy, Ho, Er, Tm, Yb, Lu, and combinations thereof. The redox agent is selected from the group consisting of Mn, W, Bi, Sb, Sn, Ce, Pr, and combinations thereof. 1. An oxidative coupling of methane (OCM) catalyst composition characterized by the general formula ALaEDO; wherein A is an alkaline earth metal; wherein E is a first rare earth element; wherein D is a redox agent or a second rare earth element; wherein the first rare earth element and the second rare earth element are different; wherein a is 1.0; wherein b is from about 0.01 to about 10.0; wherein c is from about 0 to about 10 ,0; wherein d is from about 0 to about 10.0; and wherein x balances the oxidation states.2. The OCM catalyst composition of claim 1 , wherein the alkaline earth metal is selected from the group consisting of magnesium (Mg) claim 1 , calcium (Ca) claim 1 , strontium (Sr) claim 1 , barium (Ba) claim 1 , and combinations thereof.3. The OCM catalyst composition of claim 1 , wherein the first rare earth element and the second rare earth element can each independently be selected from the group consisting of scandium (Sc) claim 1 , cerium (Ce) claim 1 , praseodymium (Pr) claim 1 , neodymium (Nd) claim 1 , promethium (Pm) claim 1 , samarium (Sm) claim 1 , europium (Eu) claim 1 , gadolinium (Gd) claim 1 , yttrium ( ...

LNT CATALYST

A lean NOx trap (LNT) catalyst includes a plurality of carriers connected to each other in series, wherein each of the carriers is embedded with at least one of a first wash coat containing magnesium (Mg)-substituted alumina, ceria (CeO), barium (Ba), and a precious metal, a second wash coat containing magnesium (Mg)-substituted alumina, ceria (CeO), barium (Ba), a third wash coat containing magnesium (Mg)-substituted alumina, ceria (CeO), and a fourth wash coat containing magnesium (Mg)-substituted alumina, ceria (CeO), and a higher content of a precious metal than the first wash coat, a ratio of the magnesium-substituted alumina to ceria (CeO) being lower than that of the third wash coat, wherein the third and first wash coats are disposed in a foremost carrier through which exhaust gas passes sequentially from a front portion of the foremost carrier. 1. A lean NOx trap (LNT) catalyst comprising:a plurality of carriers connected to each other in series,{'sub': '2', 'wherein each of the carriers is embedded with at least one of a first wash coat containing magnesium (Mg)-substituted alumina, ceria (CeO), barium (Ba), and a precious metal;'}{'sub': '2', 'a second wash coat containing magnesium (Mg)-substituted alumina, ceria (CeO), barium (Ba), and a lower content of a precious metal than the first wash coat;'}{'sub': '2', 'a third wash coat containing magnesium (Mg)-substituted alumina, ceria (CeO), and a higher content of a precious metal than the first wash coat; and'}{'sub': 2', '2, 'a fourth wash coat containing magnesium (Mg)-substituted alumina, ceria (CeO), and a higher content of a precious metal than the first wash coat, a ratio of the magnesium-substituted alumina to ceria (CeO) being lower than that of the third wash coat,'}wherein the third and first wash coats are disposed in a foremost carrier through which exhaust gas passes sequentially from a front portion of the foremost carrier.2. The LNT catalyst of claim 1 , wherein the first and third wash ...

WATER OXIDATION CATALYSTS AND METHODS OF USE THEREOF

Homogeneous water oxidation catalysts (WOCs) for the oxidation of water to produce hydrogen ions and oxygen, and methods of making and using thereof are described herein. In a preferred embodiment, the WOC is a polyoxometalate WOC which is hydrolytically stable, oxidatively stable, and thermally stable. The WOC oxidized waters in the presence of an oxidant. The oxidant can be generated photochemically, using light, such as sunlight, or electrochemically using a positively biased electrode. The hydrogen ions are subsequently reduced to form hydrogen gas, for example, using a hydrogen evolution catalyst (HEC). The hydrogen gas can be used as a fuel in combustion reactions and/or in hydrogen fuel cells. The catalysts described herein exhibit higher turn over numbers, faster turn over frequencies, and/or higher oxygen yields than prior art catalysts. 1. A method of oxidizing water to oxygen , comprising mixing water with a photosensitizer , and a polyoxometalate water oxidation catalyst , under conditions such that oxygen is formed , wherein the catalyst is [Co(HO)(PWO)][A]wherein A is a cation or combination of cations.2. The method of claim 1 , wherein mixing is done in the presence of an oxidizing agent.3. The method of claim 1 , wherein mixing is done in an electrochemical cell comprising an electrode.4. The method of claim 3 , wherein the electrochemical cell further comprises nanocrystalline TiO.5. The method of claim 1 , wherein the photosensitizer is a ruthenium complex. This Application is a continuation of U.S. application Ser. No. 13/256,227, filed Sep. 13, 2011, now U.S. Pat. No. 8,822,367, issued Sep. 2, 2014, which is a 371 U.S.C of PCT International Patent Serial No. PCT/US2010/027670, filed on Mar. 17, 2010, which claims the benefit of priority to U.S. Provisional Application 61/160,881, filed on Mar. 17, 2009 and U.S. Provisional Application 61/305,301, filed on Feb. 17, 2010. The entirety of each of these applications is incorporated by reference for ...

CATALYST FOR THE OXIDATIVE COUPLING OF METHANE WITH LOW FEED TEMPERATURES

A catalytic material for oxidative coupling of methane includes: a catalyst with the formula ABCO, wherein: A is selected from alkaline earth metals; B and C are selected from rare earth metals, and wherein B and C are different rare earth metals; and the oxide of at least A, B, and C has basic, redox, or both basic and redox properties, and wherein the elements A, B, and C are selected to create a synergistic effect whereby the catalytic material provides an oxygen conversion of greater than or equal to 50% and a C selectivity of greater than or equal to 70%, and wherein the catalyst provides the oxygen conversion and selectivity at a temperature of 797° F. (425° C.) or greater. The catalyst can be used in an oxidative coupling of methane reactor at lower feed temperatures compared to other catalysts. 1. A catalytic material for oxidative coupling of methane comprising:{'sub': a', 'b', 'c', 'x, 'claim-text': A is selected from alkaline earth metals;', 'B and C are selected from rare earth metals, and wherein', 'B and C are different rare earth metals; and', {'sub': '2', 'sup': '+', 'the oxide of at least A, B, and C has basic, redox, or both basic and redox properties, and wherein the elements A, B, and C are selected to create a synergistic effect whereby the catalytic material provides an oxygen conversion of greater than or equal to 50% and a C selectivity of greater than or equal to 70%, and wherein the catalyst provides the oxygen conversion and selectivity at a temperature of 797° F. (425° C.) or greater.'}], 'a catalyst with the formula ABCO, wherein2. The catalytic material according to claim 1 , wherein the catalyst is thermally stable at a temperature of 797° F. (425° C.) or greater.3. The catalytic material according to claim 1 , wherein the catalyst is thermally stable at a temperature in the range of about 797° F. (425° C.) to about 2 claim 1 ,372° F. (1 claim 1 ,300° C.).4. The catalytic material according to claim 1 , wherein the catalyst provides ...

CATALYTICALLY ACTIVE PARTICULATE FILTER

The invention relates to a particulate filter which comprises a wall flow filter of length L and two catalytically active coatings Y and Z, wherein the wall flow filter comprises channels E and A that extend in parallel between a first and a second end of the wall flow filter and are separated by porous walls which form surfaces OE and OA, respectively, and wherein the channels E are closed at the second end and the channels A are closed at the first end, and the coatings Y and Z have the same oxygen storage components and the same carrier materials for noble metals. The invention is characterised in that the coating Y is located in the channels E on the surfaces OE and the coating Z is located in the channels Aon the surfaces OA. 1. Particulate filter , comprising a wall flow filter of length L and two coatings Y and Z , wherein the wall flow filter comprises channels E and A that extend in parallel between a first and a second end of the wall flow filter and are separated by porous walls which form surfaces Oor O , and wherein the channels E are closed at the second end and the channels A are closed at the first end , and wherein the coatings Y and Z comprise the same oxygen storage components and the same carrier materials for precious metals ,characterized in that{'sub': 'E', 'coating Y is located in the channels E on the surfaces Oand extends from the first end of the wall flow filter over 55 to 90% of the length L,'}{'sub': 'A', 'coating Z is located in the channels A on the surfaces Oand extends from the second end of the wall flow filter over 55 to 90% of the length L,'}and the coatings Y and Z contain aluminum oxide in a quantity of 20 to 70 wt %, relative to the total weight of the coating Y or Z, rhodium, palladium, or palladium and rhodium and one or more oxygen storage components in a quantity of 30 to 80 wt %, relative to the total weight of the coating Y or Z, wherein the coatings Y and Z both comprise lanthanum-stabilized aluminum oxide, rhodium, ...

METHOD FOR ENGINEERED CELLULAR MAGMATICS FOR FILTER APPLICATIONS AND ARTICLES THEREOF

Methods for engineered cellular magmatic usable as filter media and articles thereof are disclosed. For example, the magmatics may include one or more infiltration materials that are configured not to sinter when a foamed mass is formed. The infiltration materials may be enclosed in cells of the foamed mass and may be floating and/or fixed to the cell walls. 1. An article of manufacture , comprising: a non-crystalline portion; and', 'a crystalline portion that is bound to the non-crystalline portion, in line with the definition of glass ceramics; and, 'a rigid foam mass being composed of at least one silicate based component and havinga reactive material disposed within and enclosed by pores of at least a portion of at least one of the non-crystalline portion or the crystalline portion, the reactive material causing the rigid foam mass to exhibit filtration media properties.2. The article of manufacture of claim 1 , wherein the rigid foam mass includes a majoritively open cell structure.3. The article of manufacture of claim 1 , wherein the reactive material includes at least one of alumina claim 1 , bauxite claim 1 , sodium aluminate claim 1 , periclase claim 1 , hematite claim 1 , wüstite claim 1 , magnetite claim 1 , enamel claim 1 , zircon claim 1 , zirconium dioxide claim 1 , silicon carbide claim 1 , silicon nitride claim 1 , garnet claim 1 , spinel claim 1 , kaolin claim 1 , clays claim 1 , zeolites claim 1 , incinerator ash claim 1 , or pyrolysis ash.4. The article of manufacture of claim 1 , wherein the reactive material includes a surface chemistry configured to resist incorporation of the metal oxide material into a wall of the pores.5. An article of manufacture claim 1 , comprising: at least one of a non-crystalline portion or a crystalline portion bound to the non-crystalline portion; and', 'a reactive material disposed within pores of at least a portion of the at least one of the non-crystalline portion or the crystalline portion., 'an engineered foam ...

Method for producing liquid or solid hydrocarbons from synthesis gas via fischer-tropsch synthesis which does not carry out separate reduction pre-treatment for catalyst activation

The present invention relates to a method for producing liquid or solid hydrocarbons from a synthesis gas via Fischer-Tropsch synthesis which does not carry out a separate reduction pre-treatment for catalyst activation. The method for producing liquid or solid hydrocarbons from a synthesis gas using Fischer-Tropsch synthesis according to the present invention comprises: a first step of applying an iron-based catalyst for the Fischer-Tropsch synthesis in which the number of iron atoms in the ferrihydrite phase fraction equals 10 to 100% and the number of iron atoms in the hematite phase fraction equals 0 to 90%, with respect to 100% of the number of the number of iron atoms, to a Fischer-Tropsch synthesis reactor; and a second step of activating the catalyst for the Fischer-Tropsch synthesis by a synthesis gas which is a reactant under the conditions of the Fischer-Tropsch synthesis and carrying out the Fischer-Tropsch synthesis by means of the activated catalyst for the Fischer-Tropsch synthesis. As such, the present invention is capable of efficiently producing liquid or solid hydrocarbons from a synthesis gas via Fischer-Tropsch synthesis, even without a separate reduction pre-treatment.