Exxonmobil Chemical Patents Inc.

Exxon Research and Engineering Company

Exxon Chemical Patents, Inc.

Other

Exxonmobile Chemical Patents Inc.

Kenneth Ray Clem

Stephen Neil Vaughn

Yun-Feng Chang

Teng Xu

Luc R M Martens

Machteld Maria Mertens

Shun Chong Fung

Nicolas P Coute

Gary David Mohr

Wilfried Jozef Mortier

Marcel Johannes Janssen

Richard B Hall

James Richardson Lattner

Keith Holroyd Kuechler

Karl Gottlieb Strohmaier

Larry Lee Iaccino

James Harding Beech, Jr

Peter Loezos

Marcel J G Janssen

Luc Roger Martens

Luc Roger Marc Martens

Albert Edward Schweizer

Johannes Petrus Verduijn

Neeraj Sangar

Weiguo Hu

James H Beech

Jeffrey L White

Jeffery W Sprinkle

Michael C Bradford

Stuart Leon Soled

Gary Brice McVicker

Jack Wayne Johnson

George A Swan, Iii

Mobae Afeworki

Joseph Ernest Baumgartner

Xiaobing Feng

Richard Edwards Walter

Jeffrey Scott Smith

Jar-Lin Kao

Jeremy J Patt

An Verberckmoes

Marc H Anthonis

J Scott Buchanan

Tan Jen Chen

Cornelius W M Van Oorschot

Jeffrey P Jones

Fran A Shipley

Jannetje Maatje Van Den Berge

Rutton D Patel

Ehsan I Shoukry

Yun Feng Chang

Jesse Frederick Goellner

Yao-Jyh Robert Huang

Pete N Loezos

James E Kegerreis

Hafedh Kochkar

Kenneth J Heider

John Francis Walsh

Bart Schoofs

Cornelis W M Van Oorschot

James C Vartuli

Doron Levin

Thomas H Vanderspurt

John Di-Yi Ou

Robert Scott Smith

Lorenzo C DeCaul

Arun K Sharma

Philip Andrew Ruziska

Thomas Herman Colle

Juan D Henao

Alistair Duncan Westwood

Xiaobo Zheng

Donald F Shaw

Gerald G McGlamery, Jr

Dean C Draemel

Gerrit S Swart

Paul N Chisholm

Paul W Kamienski

Cornelis F Van Egmond

Stuart S Goldstein

Mark A Nierode

Paul Ryan Stafford

Julia Elizabeth Steinheider

Patrick Joseph Maher

Louis S Dauber

Jocelyn A Kowalski

Mechilium Johannes Janssen

E Nicholas Jones

Patricia A O'Neill-Burn

Mechilium Johannes Gerardus Janssen

Staubs, David W

Phillip Andrew Ruziska

Jannetje Maatje Van Der Berge

John W Kress

Graeme Ian Cox

Robert Michael Osman

John Michael Ferraro

Peter N Loezos

Thomas H Colle

In a process for the regeneration of a coked metal-containing catalyst, the coked catalyst is contacted in a regeneration zone with an atmosphere which contains carbon dioxide and carbon monoxide at a temperature of at least 400&#xb0; C.

Regeneration of metal-containing catalysts

A catalyst for the conversion of methane to higher hydrocarbons including aromatic hydrocarbons comprises a support and molybdenum or a compound thereof dispersed on the support. The support comprises an aluminosilicate zeolite combined with a binder selected from silica, titania, zirconia and mixtures thereof. The catalyst is substantially free of aluminum external to the framework of the aluminosilicate zeolite.

Production of aromatics from methane

In a process for converting a low carbon number aliphatic hydrocarbon to higher hydrocarbons including aromatic hydrocarbons, a feed containing the aliphatic hydrocarbon is contacted with a dehydrocyclization catalyst under conditions effective to convert the aliphatic hydrocarbon to aromatic hydrocarbons and produce an effluent stream comprising aromatic hydrocarbons and hydrogen. The dehydrocyclization catalyst comprises a metal or metal compound and a molecular sieve wherein the ratio of the amount of any Bronsted acid sites in the catalyst to the amount of said metal in the catalyst is less than 0.4 mol/mol of said metal.

Production of aromatics from aliphatics

A silicoaluminophosphate molecular sieve is disclosed that comprises first and second intergrown phases of a CHA framework type and an AEI framework type, wherein said first intergrown phase has an AEI/CHA ratio of from about 5/95 to about 40/60 as determined by DIFFaX analysis, the second intergrown phase has an AEI/CHA ratio of about 30/70 to about as determined by DIFFaX analysis and said molecular sieve has a silica to alumina molar ratio (Si/Al) from about 0.13 to about 0.24.

Crystalline intergrowth material of silicoaluminophosphate having two intergrown phases

A gas-solids reaction system with termination devices to connect a riser with one or more separation devices. The termination devices have a radius of curvature that is at least 1.0 times as great as the diameter of the conduit forming the termination device. The termination devices can be openly or closely coupled to the separation devices.

Riser termination devices for reduced catalyst attrition and losses

This invention is to a process for separating condensed water and entrained solids from an olefin stream so that fouling of the separation equipment by the entrained solids is reduced or eliminated. The process involves injecting an antifouling agent into a water condensing or quench system in an amount to maintain a zeta potential of fouling liquid and a zeta potential of the surface of the quench system both in a positive range or both in a negative range.

Method of separating condensed liquid from an olefin stream

This invention is directed to methods of converting oxygenates to olefin products. The methods provided include steps for protecting against deactivation of active molecular sieve catalysts during the conversion process. In particular, the invention provides for methods of regenerating coked catalyst to minimize catalyst deactivation due to contact with moisture.

Stabilizing catalyst activity during catalyst regeneration

A silicoaluminophosphate molecular sieve is disclosed that comprises first and second intergrown phases of a CHA framework type and an AEI framework type, wherein said first intergrown phase has an AEI/CHA ratio of from about 5/95 to about 40/60 as determined by DIFFaX analysis, the second intergrown phase has an AEI/CHA ratio of about 30/70 to about 55/45 as determined by DIFFaX analysis and said molecular sieve has a silica to alumina molar ratio (Si/Al) from about 0.13 to about 0.24.

Crystalline intergrowth material, its synthesis and its use in the conversion of oxygenates to olefins

This invention is directed to a process for removing catalyst particles from a gas. The invention is particularly suited to separating particles from the gas in a vessel that has a dilute phase zone and a dense phase zone. An acoustic waveform is applied to the dilute phase zone to assist in separating small particles from the gas in the dilute phase zone.

Separating solid particles from gas in a fluid bed reactor

In a process for converting methane to aromatic hydrocarbons, a feed containing methane and a particulate catalytic material are supplied to a reaction zone operating under reaction conditions effective to convert at least a portion of the methane to aromatic hydrocarbons and to deposit carbonaceous material on the particulate catalytic material causing catalyst deactivation. At least a portion of the deactivated particulate catalytic material is removed from the reaction zone and is heated to a temperature of about 700&#xb0; C. to about 1200&#xb0; C. by direct and/or indirect contact with combustion gases produced by combustion of a supplemental fuel. The heated particulate catalytic material is then regenerated with a hydrogen-containing gas under conditions effective to convert at least a portion of the carbonaceous material thereon to methane and the regenerated catalytic particulate material is recycled back to the reaction zone.

This invention provides methods of making molecular sieve catalyst particles, molecular sieve slurries that can be used in such methods, molecular sieve catalyst compositions and their use in catalytic hydrocarbon conversion processes. In one of its aspects, the invention provides a method of making molecular sieve catalyst particles, the method comprising the steps of: a) providing a solution or suspension of an aluminum-containing inorganic oxide precursor in a liquid medium; b) combining the solution or suspension of aluminum-containing inorganic oxide precursor with a molecular sieve, and optionally other formulating agents, to form a catalyst formulation slurry; c) aging the catalyst formulation slurry to generate in said slurry a percentage, or increase in said slurry the existing percentage, of aluminum atoms of the aluminum-containing precursor in the form of oligomers having a sharpAl NMR peak at 62-63 ppm; and d) forming molecular sieve catalyst particles from the catalyst formulation slurry. The catalyst compositions obtained by the methods of the present invention have improved attrition resistance, and are particularly useful in hydrocarbon conversion processes.

Molecular sieve catalyst composition, its making and use in conversion processes

The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to making a formulated molecular sieve catalyst composition from a slurry of formulation composition of a synthesized molecular sieve that has not been fully dried, a binder and an optional matrix material. In a more preferred embodiment, the weight ratio of the binder to the molecular sieve and/or the solid content of the slurry is controlled to provide an improved attrition resistant catalyst composition, particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.

The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to a molecular sieve catalyst composition of a molecular sieve, a binder and a matrix material, wherein the weight ratio of the binder to the molecular sieve is controlled to provide an improved attrition resistant catalyst composition, particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.

This invention provides methods of making molecular sieve catalyst particles, molecular sieve slurries that can be used in such methods, molecular sieve catalyst compositions and their use in catalytic hydrocarbon conversion processes. In one of its aspects, the invention provides a method of making molecular sieve catalyst particles, the method comprising the steps of: a) providing a solution or suspension of an aluminum-containing inorganic oxide precursor in a liquid medium; b) combining the solution or suspension of aluminum-containing inorganic oxide precursor, for example a mixed aluminum-zirconium oxide precursor, with a molecular sieve, and optionally other formulating agents, to form a catalyst formulation slurry; c) aging the catalyst formulation slurry to generate in said slurry a percentage, or increase in said slurry the existing percentage, of aluminum atoms of the aluminum-containing precursor in the form of oligomers having a sharpAl NMR peak at 62-63 ppm; and d) forming molecular sieve catalyst particles from the catalyst formulation slurry. The catalyst compositions obtained by the methods of the present invention have improved attrition resistance, and are particularly useful in hydrocarbon conversion processes.

Growing community of inventors

Humble, TX, United States of America

Kenneth Ray Clem