Gary C Mohr

US Patent:

7271118, Sep 18, 2007

Filed:

Jul 29, 2004

Appl. No.:

10/902322

Inventors:

Brenda A. Raich - Annandale NJ, US
Robert A. Crane - Hellertown PA, US
Christine N. Elia - Bridgewater NJ, US
Teresa A. Jurgens-Kowal - Seabrook TX, US
Gary D. Mohr - Houston TX, US
David L. Stern - Asbury NJ, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

B01J 29/06
B01J 29/068

US Classification:

502 66, 502 64, 502 67, 502 69, 502 71

Abstract:

A catalyst system that exhibits a ratio of ethylene saturation to aromatics ring saturation of greater than 3,500. The catalyst system comprises two components and each component comprises a crystalline molecular sieve having a Constraint Index of from about 1 to about 12 and an effective amount of Group VIII metal. The catalyst system finds particular application in ethylbenzene conversion/xylenes isomerization reactions. The catalyst system can be prepared by incorporating the Group VIII metal into the molecular sieves by competitive ion exchange.

US Patent:

7453018, Nov 18, 2008

Filed:

Nov 12, 2004

Appl. No.:

10/987324

Inventors:

Jihad Mohammed Dakka - Whitehouse Station NJ, US
John Scott Buchanan - Lambertville NJ, US
Robert Andrew Crane - Hellertown PA, US
Christine Nicole Elia - Bridgewater NJ, US
Xiaobing Feng - Houston TX, US
Larry Lee Iaccino - Seabrook TX, US
Gary David Mohr - Houston TX, US
Brenda Anne Raich - Annandale NJ, US
Lei Zhang - Bridgewater NJ, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C07C 2/66

US Classification:

585467

Abstract:

This invention relates to a process for the selective alkylation of toluene and/or benzene with an oxygen-containing alkylation agent. In particular, the process uses a selectivated molecular sieve which has been modified by the addition of a hydrogenation component, wherein at least one of the following conditions is met: (a) the selectivated molecular sieve has an alpha value of less than 100 prior to the addition of the hydrogenation component, or (b) the selectivated and hydrogenated catalyst has an alpha value of less than 100. The process of this invention provides high selectivity for the alkylated product while reducing catalyst degradation.

US Patent:

7799962, Sep 21, 2010

Filed:

Sep 10, 2008

Appl. No.:

12/208011

Inventors:

Jihad Mohammed Dakka - Whitehouse Station NJ, US
John Scott Buchanan - Lambertville NJ, US
Robert Andrew Crane - Hellertown PA, US
Christine Nicole Elia - Bridgewater NJ, US
Xiaobing Feng - Houston TX, US
Larry Lee Iaccino - Seabrook TX, US
Gary David Mohr - Houston TX, US
Brenda Anne Raich - Annandale NJ, US
Lei Zhang - Bridgewater NJ, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C07C 2/68

US Classification:

585467, 585906

Abstract:

This invention relates to a process for the selective alkylation of toluene and/or benzene with an oxygen-containing alkylation agent. In particular, the process uses a selectivated molecular sieve which has been modified by the addition of a hydrogenation component, wherein at least one of the following conditions is met: (a) the selectivated molecular sieve has an alpha value of less than 100 prior to the addition of the hydrogenation component, or (b) the selectivated and hydrogenated catalyst has an alpha value of less than 100. The process of this invention provides high selectivity for the alkylated product while reducing catalyst degradation.

US Patent:

8129481, Mar 6, 2012

Filed:

Nov 22, 2011

Appl. No.:

13/302633

Inventors:

Robert O. Hagerty - Wyckoff NJ, US
Kevin B. Stavens - Seabrook TX, US
Randall B. Laird - Pasadena TX, US
Zerong Lin - Kingwood TX, US
Michael E. Muhle - Kingwood TX, US
Agapios K. Agapiou - Humble TX, US
David M. Glowczwski - Baytown TX, US
Fathi D. Hussein - Cross Lanes WV, US
Gary D. Mohr - Houston TX, US
Ted A. Powell - La Porte TX, US
Michael E. Sieloff - Houston TX, US
Edward F. Smith - Kingwood TX, US
Keith W. Trapp - Baton Rouge LA, US

Assignee:

Univation Technologies, LLC - Houston TX

International Classification:

C08F 2/00
C08F 4/06
C08F 210/00
B01J 8/18

US Classification:

526 62, 526 90, 526101, 526154, 526348, 422139

Abstract:

A method for treating at least one interior surface (for example, a bed wall) of a fluidized bed polymerization reactor system, including by applying a solution catalyst (preferably at least substantially uniformly and in liquid form) to each surface, and optionally (where a catalyst component of the solution catalyst comprises at least one chromium containing compound) oxidizing at least some of the applied chromium containing compound in a controlled manner.

US Patent:

8399586, Mar 19, 2013

Filed:

Sep 3, 2009

Appl. No.:

12/584338

Inventors:

Gabor Kiss - Hampton NJ, US
John W. Chu - Neshanic Station NJ, US
James Richardson Lattner - LaPorte TX, US
Gary D. Mohr - Houston TX, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

C08F 2/00
C08F 4/00
C08F 36/00
C08F 110/06
C08F 110/02

US Classification:

526348, 526352, 526 64, 526335, 526351, 526 89, 422132

Abstract:

A process for feeding ethylene into a polymerization system includes providing a low-pressure ethylene stream, one or more low-pressure Cto Cmonomer streams, an optional low-pressure inert solvent/diluent stream, and one or more reactors; metering the low-pressure ethylene stream, the one or more low-pressure Cto Cmonomer streams, and the optional low-pressure inert solvent/diluent stream; blending the metered low-pressure ethylene stream, the metered one or more low-pressure Cto Cmonomer streams, and the metered low-pressure optional inert solvent/diluent stream to form an ethylene-carrying low-pressure blended liquid feed stream; pressurizing the ethylene-carrying low-pressure blended liquid feed stream to the polymerization system pressure with one or more high-pressure pumps to thrm an ethylene-carrying high-pressure blended reactor feed stream; and feeding the ethylene-carrying high-pressure blended reactor feed stream to the one or more reactors.

US Patent:

8450552, May 28, 2013

Filed:

Oct 8, 2009

Appl. No.:

12/576002

Inventors:

Frank Hershkowitz - Liberty Corner NJ, US
ChangMin Chun - Belle Mead NJ, US
Paul F. Keusenkothen - Houston TX, US
Shiun Ling - Washington NJ, US
Gary David Mohr - Houston TX, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

B01J 19/02
C07C 4/04

US Classification:

585899, 422240, 585537, 585920

Abstract:

In one aspect, the invention includes a reactor apparatus for pyrolyzing a hydrocarbon feedstock, the apparatus including: a reactor component comprising a refractory material in oxide form, the refractory material having a melting point of at least 2060 C. and which remains in oxide form when exposed to a gas having carbon partial pressure of 10bar, an oxygen partial pressure of 10bar, at a temperature of 1200 C. In some embodiments, the reactor comprises a regenerative pyrolysis reactor apparatus and in other embodiments it includes a reverse flow regenerative reactor apparatus. In other aspects, this invention includes a method for pyrolyzing a hydrocarbon feedstock using a pyrolysis reactor system comprising the step of providing in a heated region of a pyrolysis reactor system for pyrolyzing a hydrocarbon feedstock, apparatus comprising a refractory material in oxide form, the refractory material having a melting point of at least 2060 C. and that remains in oxide form when exposed to a gas having a carbon partial pressure of 10bar, an oxygen partial pressure of 10bar, at a temperature of 1200 C.

US Patent:

20100292523, Nov 18, 2010

Filed:

May 3, 2010

Appl. No.:

12/772757

Inventors:

Frank Hershkowitz - Basking Ridge NJ, US
ChangMin Chun - Belle Mead NJ, US
Paul F. Keusenkothen - Houston TX, US
Shiun Ling - Houston TX, US
Gary David Mohr - Houston TX, US

International Classification:

C07C 4/04
C10B 1/00

US Classification:

585648, 202105, 202117

Abstract:

In one aspect, the invention includes a reactor apparatus for pyrolyzing a hydrocarbon feedstock, the apparatus including: a reactor component comprising a refractory material in oxide form, the refractory material having a melting point of at least 2060 C. and which remains in oxide form when exposed to a gas having an oxygen partial pressure of 10bar, a carbon partial pressure above the carbon partial pressure of the zirconium carbide and zirconium oxide phase transition at the same temperature, and at temperatures below the temperature of the zirconium triple point at the oxygen partial pressure of 10bar; and ii) when exposed to a gas having an oxygen partial pressure of 10bar and at temperatures above the zirconium triple point at the oxygen partial pressure of 10bar. In some embodiments, the reactor comprises a regenerative pyrolysis reactor apparatus and in other embodiments it includes a reverse flow regenerative reactor apparatus. In other aspects, this invention includes a method for pyrolyzing a hydrocarbon feedstock using a pyrolysis reactor system comprising the step of providing in a heated region of a pyrolysis reactor system for pyrolyzing a hydrocarbon feedstock, apparatus comprising the above refractory material.

US Patent:

20110120853, May 26, 2011

Filed:

Nov 20, 2009

Appl. No.:

12/623046

Inventors:

ChangMin Chun - Belle Mead NJ, US
Frank Hershkowitz - Liberty Corner NJ, US
Paul F. Keusenkothen - Houston TX, US
Shiun Ling - Washington NJ, US
Gary David Mohr - Houston TX, US

International Classification:

C10G 9/00
C10B 29/00
C10B 57/16

US Classification:

201 18, 422240, 422206, 422222, 422150, 422633

Abstract:

In one aspect, the invention includes a reactor apparatus for pyrolyzing a hydrocarbon feedstock, said apparatus including: a reactor component comprising a refractory material in oxide form, the refractory material having a melting point of no less than 2060 C. and which remains in oxide form when exposed to a gas having carbon partial pressure of 10bar and oxygen partial pressure of 10bar, at a temperature of 1200 C.; wherein said refractory material has no less than 4 vol % formed porosity, measured at 20 C., based upon the bulk volume of said refractory material. In another embodiment, the refractory material has total porosity in the range of from 4 to 60 vol %.