Gary David Mohr

US Patent:

6436869, Aug 20, 2002

Filed:

Mar 2, 2000

Appl. No.:

09/517546

Inventors:

Ronald G. Searle - Houston TX
Krishna K. Rao - Kingwood TX
Gary D. Mohr - League City TX
Xiaobing Feng - League City TX

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

B01J 27182

US Classification:

502214, 502208

Abstract:

An aluminophosphate bound silicoaluminophosphate catalyst contains iron, cobalt and/or nickel is useful in a method of making a product including an olefin from a feedstock containing an oxygenate. The method includes contacting an oxygenate feedstock with the catalyst, which is an aluminophosphate bound silicoaluminophosphate catalyst containing iron, cobalt and/or nickel and which does not contain a significant amount of amorphous binder, in its activated state under conditions effective to produce an olefin product.

US Patent:

6458736, Oct 1, 2002

Filed:

Jan 8, 2001

Appl. No.:

09/756392

Inventors:

Gary David Mohr - League City TX
Marcel Johannes Gerardus Janssen - Kessel-Lo, BE

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

B01J 2906

US Classification:

502 67, 502 64, 585475

Abstract:

There is provided a process for converting hydrocarbons which utilizes a zeolite bound zeolite catalyst that has enhanced performance when utilized in hydrocarbon conversion processes, e. g. , catalytic cracking, alkylation, disproportionation of toluene, isomerization, and transalkylation reactions. The catalyst comprises a first zeolite having particles of greater than about 0. 1 micron average particle size and a binder comprising second zeolite particles having an average particle size less than said first particles.

US Patent:

6504074, Jan 7, 2003

Filed:

Dec 3, 1998

Appl. No.:

09/204576

Inventors:

Johannes P. Verduijn - late of Oostvoorne, NL
Gary David Mohr - League City TX
Kenneth Ray Clem - Humble TX
Wilfried Jozef Mortier - Kessel-lo, BE
Machteld Maria Mertens - Boortmeerbeek, BE
Michael C. Bradford - Waltham MA

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C07C 552

US Classification:

585475, 502 67

Abstract:

There is provided a coated zeolite catalyst in which the accessibility of the acid sites on the external surfaces of the zeolite is controlled and a process for converting hydrocarbons utilizing the coated zeolite catalyst. The zeolite catalyst comprises core crystals of a first zeolite and a discontinuous layer of smaller size second crystals of a second zeolite which cover at least a portion of the external surface of the first crystals The coated zeolite catalyst finds particular application in hydrocarbon conversion processes where catalyst activity in combination with zeolite structure are important for reaction selectivity, e. g. , catalytic cracking, alkylation, disproportional of toluene, isomerization, and transalkylation reactions.

US Patent:

6517807, Feb 11, 2003

Filed:

Nov 14, 2001

Appl. No.:

09/992783

Inventors:

Johannes P. Verduijn - late of Oostvoorne, NL
Gary David Mohr - League City TX

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C01B 3902

US Classification:

423709, 423712, 423716, 423DIG 22, 423717, 501 64, 501 67, 501 71, 501 77, 501 86

Abstract:

This invention relates to a process for producing zeolite-bound high silica zeolites and the use of the zeolite-bound high silica zeolite produced by the process for hydrocarbon conversion. The process is carried out by forming an extrudable paste comprising a mixture of high silica zeolite in the hydrogen form, water, silica, and optionally an extrusion aid, extruding the extrudable paste to form silica-bound high silica zeolite extrudates, and then converting the silica of the binder to a zeolite binder. The zeolite-bound high silica zeolite produced by the process comprises high silica zeolite crystals that are bound together by zeolite binder crystals. The zeolite-bound high silica zeolite finds particular application in hydrocarbon conversion processes, e. g. , catalytic cracking, alkylation, disproportionation of toluene, isomerization, and transalkylation reactions.

US Patent:

6627577, Sep 30, 2003

Filed:

May 31, 2002

Appl. No.:

10/161121

Inventors:

Robert Scott Smith - Houston TX
Gary David Mohr - Houston TX
Jannetje Maatje van den Berge - Oostvoorne, NL

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

B01J 2718

US Classification:

502208, 502 64, 502 67, 502 69, 502213, 502214

Abstract:

There is provided catalysts and conversion processes for converting hydrocarbons using the catalysts. The catalysts comprises a first alumino-phosphospho-molecular sieves and a binder comprising a second alumino-phopho-molecular sieves. Exemplary conversion processes include the conversion of oxygenates to olefins, dewaxing, reforming, dealkylation, dehydrogenation, transalkylation, alkylation, and isomerization.

US Patent:

6645370, Nov 11, 2003

Filed:

Dec 10, 2002

Appl. No.:

10/315353

Inventors:

Johannes P. Verduijn - late of Oostvoorne, NL
Gary David Mohr - League City TX

Assignee:

Exxon Mobil Chemical Patents Inc. - Houston TX

International Classification:

C10G 1105

US Classification:

20812001, 20811101, 208134, 585481, 585475, 585446, 585407, 585469, 585640, 585733, 585653

Abstract:

This invention relates to a process for producing zeolite-bound high silica zeolites and the use of the zeolite-bound high silica zeolite produced by the process for hydrocarbon conversion. The process is carried out by forming an extrudable paste comprising a mixture of high silica zeolite in the hydrogen form, water, silica, and optionally an extrusion aid, extruding the extrudable paste to form silica-bound high silica zeolite extrudates, and then converting the silica of the binder to a zeolite binder. The zeolite-bound high silica zeolite produced by the process comprises high silica zeolite crystals that are bound together by zeolite binder crystals. The zeolite-bound high silica zeolite finds particular application in hydrocarbon conversion processes, e. g. , catalytic cracking, alkylation, disproportionation of toluene, isomerization, and transalkylation reactions.

US Patent:

6653518, Nov 25, 2003

Filed:

Jun 15, 2001

Appl. No.:

09/882914

Inventors:

Xiaobing Feng - Houston TX
Thomas H. Colle - Houston TX
Gary D. Mohr - Houston TX

Assignee:

ExxonMobil Chemical Patents Inc - Houston TX

International Classification:

C07C 245

US Classification:

585419, 585418

Abstract:

A process for selectively producing para-xylene from a feedstock enriched in C isoalkanes and/or isoalkenes is disclosed. The feed is contacted with Group VIII metal loaded molecular sieve catalyst of low acidity under dehydrocyclization conditions wherein the molecular sieve has a channel size ranging from about 5-8 Angstroms and a 10 to 12 membered ring structure containing at least two elements selected from the group consisting of Si, Al, P, Ge, Ga and Ti.

US Patent:

6660896, Dec 9, 2003

Filed:

Apr 16, 2003

Appl. No.:

10/418439

Inventors:

John Scott Buchanan - Lambertville NJ
Xiaobing Feng - Houston TX
Gary David Mohr - Houston TX
David L. Stern - Annandale NJ

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C07C 527

US Classification:

585481, 585480, 585482, 585314

Abstract:

In a process for isomerizing a feed comprising ethylbenzene and a mixture of xylene isomers, the feed is first contacted under xylene isomerization conditions with a first catalyst composition to produce an intermediate product having a higher para-xylene concentration than the feed, and then the intermediate product is contacted under ethylbenzene isomerization conditions with a second catalyst composition. The second catalyst composition comprises a hydrogenation-dehydrogenation component and a molecular sieve having 10-membered ring pores and is effective to selectively isomerize at least part of the ethylbenzene in the intermediate product to para-xylene and thereby produce a further product having a para-xylene concentration greater than the equilibrium concentration of para-xylene at said ethylbenzene isomerization conditions.