Michigan State University

Shell Oil Comapny

Peter Tanev Tanev

Thomas J Pinnavaia

Wenzhong Zhang

Malama Chibwe

Mario Soorholtz

Jialiang Wang

Armin Lange De Oliveira

Thomas R Pauly

Ying Liang

Larry Lanier Marshall

The invention provides a process for preparing a methane oxidation catalyst, a methane oxidation catalyst thus prepared and a method of oxidizing methane.

Methane oxidation catalyst, process to prepare the same and method of using the same

The invention provides a process for preparing a methane oxidation catalyst comprising a mechanochemical treatment, a methane oxidation catalyst thus prepared and a method of oxidizing methane.

The present invention provides a method of treating an exhaust gas comprising methane and NO. The exhaust gas is contacted with a catalyst in the presence of oxygen to oxidize at least part of the methane in the gas stream to carbon dioxide and water and at least part of the NO into NOobtaining a treated gas stream. The catalyst comprises one or more noble metals supported on non-modified zirconia, wherein the zirconia comprises tetragonal zirconia and monoclinic zirconia, and wherein the weight ratio of tetragonal zirconia to monoclinic zirconia is in the range of from 1:1 to 31:1.

The present invention provides a methane oxidation catalyst comprising one or more noble metals supported on zirconia, wherein the zirconia comprises tetragonal zirconia and monoclinic zirconia, and wherein the weight ratio of tetragonal zirconia to monoclinic zirconia is in the range of from 1:1 to 31:1. The invention further provides a process for preparing a methane oxidation catalyst, a methane oxidation catalyst thus prepared and a method of oxidizing methane.

A catalyst for converting methane to aromatic hydrocarbons is described herein. The catalyst comprises an active metal or a compound thereof, zinc or a compound thereof and an inorganic oxide support wherein the active metal is added to the support as a metal oxalate. A method of making the catalyst and a method of using the catalyst are also described.

Zinc containing methane aromatization catalyst, method of making a method of using the catalyst

A catalyst for converting methane to aromatic hydrocarbons is described herein. The catalyst comprises an active metal or a compound thereof, and an inorganic oxide support wherein the active metal is added to the support in the form of metal oxalate. The metal oxalate-derived catalyst exhibits superior performance in the conversion of methane-rich feed to aromatics products relative to catalysts prepared from non-oxalate metal precursors. A method of making the catalyst and a method of using the catalyst are also described.

Methane aromatization catalyst, method of making and method of using the catalyst

Bismuth- and phosphorus-containing naphtha reforming catalysts, methods of making such catalysts, and a naphtha reforming process using such catalysts.

Bismuth- and phosphorus-containing reforming catalysts, method of making and naphtha reforming process

Bismuth- and phosphorus-containing catalyst supports, naphtha reforming catalysts made from such supports, methods of making both support and catalyst, and a naphtha reforming process using such catalysts.

Bismuth-and phosphorus-containing catalyst support, reforming catalysts made from same, method of making and naphtha reforming process

A neutral templating route to mesoporous molecular sieves based on H-bonding and self-assembly between neutral primary amine or diamine surfactants (S&deg;) and neutral inorganic precursors (I&deg;) has been used to prepare hexagonal and lamellar mesoporous silicas with site isolated transition metal centers. The templating of neutral metallosilicate precursors (I&deg;) with neutral diamine surfactants (S&deg;&mdash;S&deg;) affords thermally stable pillared lamellar metallosilicates exhibiting complementary framework-confined microporosity and textural mesoporosity while at the same time also providing for template recovery by solvent extraction. These new mesoporous metallosilicate molecular sieves exhibit exceptional catalytic activity for peroxide hydroxylation of benzene and oxidation of substituted aromatics with kinetic diameters that are too large (larger than 6 &angst;) to access the pore structure of the conventional microporous transition metal-substituted molecular sieves such as titano- and vanadosilicates.

Catalytic applications of mesoporous metallosilicate molecular sieves and methods for their preparation

Crystalline inorganic oxide compositions having regular wormhole-like channels are described. The formation of the mesoporous composition is accomplished by hydrogen bonding between a neutral amine template in water and a water miscible organic solvent and a neutral inorganic oxide precursor, wherein there is an excess of an alkanol or water used to dissolve the template. The template can be removed and recycled.

Quasi crystalline inorganic oxide compositions prepared by neutral templating route

A neutral templating route to mesoporous molecular sieves based on H-bonding and self-assembly between neutral primary amine or diamine surfactants (S&deg;) and neutral inorganic precursors (I&deg;) has been used to prepare hexagonal and lamellar mesoporous silicas with site isolated transition metal centers. This templating approach allows for the preparation of hexagonal or hexagonal-like mesoporous oxidation catalysts with large framework wall thickness of at least about 17 &angst;, small elementary particle size (&lE;400 &angst;), and unique combinations of framework-confined mesopores and textural mesopores while at the same time providing for facile recovery of the neutral template by simple solvent extraction. The templating of neutral metallosilicate precursors (I&deg;) with neutral diamine surfactants (S&deg;&mdash;S&deg;) affords thermally stable pillared lamellar metallosilicates exhibiting complementary framework-confined microporosity and textural mesoporosity while at the same time also providing for template recovery by solvent extraction. In addition, a hexagonal transition metal-substituted catalysts, analogous to MCM-41, have been prepared using the mediated S X I templating pathway (Pathway ) and mild reaction conditions.

Quasi crystalline inorganic oxide compositions prepared by neutral

A neutral templating route to mesoporous molecular sieves based on H-bonding and self-assembly between neutral primary amine or diamine surfactants (S.degree.) and neutral inorganic precursors (I.degree.) has been used to prepare hexagonal and lamellar mesoporous silicas with site isolated transition metal centers. This templating approach allows for the preparation of hexagonal or hexagonal-like mesoporous oxidation catalysts with large framework wall thickness of at least about 17 .ANG., small elementary particle size (.ltoreq.400 .ANG.), and unique combinations of framework-confined mesopores and textural mesopores while at the same time providing for facile recovery of the neutral template by simple solvent extraction. The templating of neutral metallosilicate precursors (I.degree.) with neutral diamine surfactants (S.degree.-S.degree.) affords thermally stable pillared lamellar metallosilicates exhibiting complementary framework-confined microporosity and textural mesoporosity while at the same time also providing for template recovery by solvent extraction. In addition, a hexagonal transition metal-substituted catalysts, analogous to MCM-41, have been prepared using the mediated S.sup.+ X.sup.- I.sup.+ templating pathway (Pathway 3) and mild reaction conditions. These new mesoporous metallosilicate molecular sieves exhibit exceptional catalytic activity for peroxide hydroxylation of benzene and oxidation of substituted aromatics with kinetic diameters that are too large (larger than 6 .ANG.) to access the pore structure of the conventional microporous transition metal-substituted molecular sieves such as titano- and vanadosilicates.

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Katy, TX, United States of America

Peter Tanev Tanev