Mobil Oil Corporation

Exxonmobil Oil Corporation

Exxonmobil Chemical Patents Inc.

University of Pennsylvania

Exxonmobil Research and Engineering Company

Other

Mobile Oil Corporation

Jeffrey S Beck

David Lawrence Stern

Sharon B McCullen

David H Olson

James C Vartuli

Wieslaw J Roth

Charles T Kresge

Chaya R Venkat

Jeevan S Abichandani

Stephen Harold Brown

Ralph M Dessau

Ivy Dawn Johnson

Kirk D Schmitt

Bruce P Pelrine

Michael E Leonowicz

Larry G Sneddon

David C Calabro

Carrie L Kennedy

Jane C Cheng

Ajit Bhaskar Dandekar

Cynthia T-w Chu

Michael Hryniszak

John L Schlenker

Robert A Crane, Jr

Ronald J Cimini

Paul Joseph Fazen

Dimitris K Liguras

Stuart Leon Soled

Dennis G Peiffer

Scott S Han

Stuart Damon Hellring

Arthur W Chester

Sabato Miseo

Ernest W Valyocsik

Jose G Santiesteban

David O Marler

Stephen John McCarthy

David S Shihabi

Galen D Stucky

Louis D Rollmann

William Alois Weber

Bhupender S Minhas

Richard F Socha

William A Wachter

Daria N Lissy

Mark F Mathias

Guenter H Kuehl

Kathleen M Keville

Christine Esther Kliewer

Roland H Heck

Jocelyn A Kowalski

William G Borghard

Ronald H Fischer

Suzanne Elaine Schramm

William S Borghard

P Thomas Reischman

Robert G Bundens

Lloyd L Breckenridge

Tomas R Melli

Chris Esther Kliewer

John B Higgins

John D Schlenker

Timothy F Kinn

Selma Kwok

Vinaya A Kapoor

John H Thurtell

Jeeven S Abichandani

In a process for producing a hydroprocessing catalyst, a particulate metal oxide composition comprising an oxide of at least one first metal selected from Group 6 of the Periodic Table of the Elements can be mixed with particles of a sulfide of at least one second metal selected from Groups 8 to 10 of the Periodic Table of the Elements to produce a particulate catalyst precursor. The particulate catalyst precursor can then be sulfided under conditions sufficient to at least partially convert the particulate catalyst precursor into a layered metal sulfide having defect sites associated with the second metal sulfide.

Hydroprocessing catalysts and their production

This invention relates to a process for recycling acid used to remove nitrogen contaminants from hydrocarbons using polymeric membranes to separate spent acid from the acid extraction of hydrocarbons into acid for recycle and acid for regeneration.

Regeneration of sulfuric acid

This invention relates to a FCC process using a mesoporous catalytic cracking catalyst. The mesoporous fluidized catalytic cracking catalyst is selective for minimizing the production of coke and light gas. The catalyst comprises at least one amorphous, porous matrix, each matrix having pores ranging in diameter from about 1 &#x212b; to about 10 &#x212b; and pores ranging in diameter from about 40 &#x212b; to about 500 &#x212b;, wherein in the pore range from 50 &#x212b; to 250 &#x212b;, there is a single maximum in differential pore volume distribution over the 50 &#x212b; to 250 &#x212b; range.

FCC process using mesoporous catalyst

A method is disclosed for modifying a catalytic molecular sieve for shape-selective hydrocarbon conversions comprises:

High temperature calcination of selectivated molecular sieve catalysts for activity and diffusional modification

The present invention provides a process for regenerating a spent aromatics alkylation or transalkylation catalyst comprising a molecular sieve by contacting the spent catalyst with an oxygen-containing gas at a temperature of about 120 to about 600&#xb0; C. and then contacting the catalyst with an aqueous medium, such as an ammonium nitrate solution, an ammonium carbonate solution or an acid solution.

Reactivation of aromatics alkylation catalysts

The present invention provides a process for regenerating a spent aromatics alkylation or transalkylation catalyst comprising a molecular sieve by contacting the spent catalyst with an oxygen-containing gas at a temperature of about 120 to about 600&deg; C. and then contacting the catalyst with an aqueous medium, such as an ammonium nitrate solution, an ammonium carbonate solution or an acetic acid solution.

There is provided a substantially binder-free catalytic molecular sieve which has been modified by being ex situ selectivated with a silicon compound. The ex situ selectivation involves exposing the molecular sieve to at least two silicon impregnation sequences, each sequence comprising an impregnation with a silicon compound followed by calcination. The catalyst may be used in a hydrocarbon conversion process, such as toluene disproportionation.

Binderless ex situ selectivated zeolite catalyst

Small crystal ZSM-5, its synthesis and use

The patent application discloses an integrated process for reformate upgrading. Such a process enables production of a high value product slate, by incorporating the step of reforming along with reaction/diffusion with a zeolite.

Reformate upgrading using zeolite catalyst

The present invention is directed to a large-pore aluminosilicate molecular sieve comprising alumina and silica, where the ratio of SiO,/Al,O,ranges from about 75 to 600, and its method of preparation. The large-pore aluminosilicate molecular sieve of the present invention has the ability to catalyze reactions involving particularly bulky transition states or large molecules.

Aluminosilicate molecular sieve

A process useful in steam cracking is disclosed for selectively converting a feed comprising C,&plus; dienes and oxygenate to a product comprising increased C,&plus; monoolefins and para-xylene levels by contacting said feed under diolefin conversion conditions with a catalyst comprising a porous crystalline material having a Diffusion Parameter for 2,2-dimethylbutane of about 0.1-100 sec,when measured at a temperature of 120&deg; C. and a 2,2-dimethylbutane pressure of 60 torr (8 kPa), a temperature of 430&deg; C. and 0.5 WHSV.

Process for converting dienes and oxygenates to para-xylene and light olefins

A process is described for isomerizing a feed which contains ethylbenzene and xylene, which process comprises the steps of:

Xylene isomerization

Direct thermal syntheses in the absence of catalyst, of poly(borazylenes) and of oligomers of borazine with polyhedral boranes, carboranes or heteroboranes are disclosed. The products of these syntheses are precursors to BN or other boron-containing ceramics.

Direct thermal synthesis and ceramic applications of poly(borazylenes)

Growing community of inventors

Princeton, NJ, United States of America

Jeffrey S Beck