CHARLES LOUIS SMITH, III
Pilots at Braes Frst Dr, Houston, TX

6765120, Jul 20, 2004

Dec 13, 2002

10/318690

William A. Weber - Burlington NJ
Charles Morris Smith - Houston TX
Francis S. Bryan - Townsend DE
Stephen H. Brown - Brussels, BE
Jane C. Cheng - Bridgewater NJ

ExxonMobil Chemical Patents Inc. - Houston TX

C07C 522

585323, 585319, 585467, 585475

In a process for the selective production of meta-diisopropylbenzene, a C + aromatic hydrocarbon feedstock containing meta- and ortho-diisopropylbenzene is contacted with benzene under conversion conditions with a catalyst comprising a molecular sieve selected from the group consisting of zeolite beta, mordenite and a porous crystalline inorganic oxide material having an X-ray diffraction pattern including the d-spacing maxima at 12. 4±0. 25, 6. 9±0. 15, 3. 57±0. 07 and 3. 42±0. 07 Angstrom. The contacting step selectively converts ortho-diisopropylbenzene in the feedstock to produce an effluent in which the ratio of meta-diispropylbenzene to ortho-diispropylbenzene is greater than that of the feedstock. The effluent is the fed to a separation zone for recovery of a product rich in meta-diisopropylbenzene.

6995295, Feb 7, 2006

Sep 23, 2002

10/252767

Michael C. Clark - Seabrook TX, US
Ronald Joseph Cimini - Friendswood TX, US
Charles M. Smith - Houston TX, US
Brian Maerz - Chelmsford MA, US

ExxonMobil Chemical Patents Inc. - Houston TX
Washington Group International - Boise ID

C07C 2/68

585449, 585467

A process is described for producing an alkylaromatic compound by reacting an alkylatable aromatic compound with a feed comprising an alkene and an alkane in a multistage reaction system comprising at least first and second series-connected alkylation reaction zones each containing an alkylation catalyst. At least the first alkylation reaction zone is operated under conditions of temperature and pressure effective to cause alkylation of the aromatic compound with the alkene in the presence of the alkylation catalyst, the temperature and pressure being such that the aromatic compound is partly in the vapor phase and partly in the liquid phase. An effluent comprising the alkylaromatic compound, unreacted alkylatable aromatic compound, any unreacted alkene and the alkane is withdrawn from the first alkylation reaction zone and at least part of the alkane is removed from the effluent to produce an alkane-depleted effluent. The alkane-depleted effluent is then supplied to the second alkylation reaction zone.

2013025, Sep 26, 2013

Aug 4, 2011

13/704443

Yogesh V. Joshi - Annandale NJ, US
Pallassana S. Venkataraman - Annandale VA, US
Terry E. Helton - Bethlehem PA, US
Charles M. Smith - Houston TX, US
Jose G. Santiesteban - Hellertown PA, US
Matthew J. Vincent - Kingwood TX, US

ExxonMobil Chemical Patents Inc. - Baytown TX

G01N 31/10, B01J 29/08, C07C 2/66, B01J 29/70

585467, 423700, 436 37

The present invention provides a method for selecting an improved catalyst composition comprising a crystalline molecular sieve material having a structure and properties whereby the catalyst composition has at least one active catalytic site with a Mono Alkylation Selectivity Factor (MASF) greater than or equal to 0 kcal/mol±0.5 kcal/mol, and optionally further at least one active catalytic site with an Olefin Oligomerization Suppression Factor (OOSF) greater than or equal to 5 kcal/mol±0.5 kcal/mol. Further, there is provided an improved process for conversion of hydrocarbon feedstock in the presence of said selected catalyst composition.

7199275, Apr 3, 2007

Jul 28, 2004

10/900617

Charles Morris Smith - Houston TX, US

ExxonMobil Chemical Patents Inc. - Houston TX

C07C 2/66

585448

This invention provides for a process for hydrocarbon conversion in which a partially dehydrated hydrocarbon feedstock is contacted with at least two different molecular sieve materials, including a first molecular sieve having a Si/Al molar ratio of less than about 5 and a second molecular sieve having a Si/Al molar ratio of greater than about 5. Also, this invention includes such processes in which such feedstocks are contacted with a first molecular sieve having pores of at least about 6 Angstroms and a second molecular sieve having pores of less than about 6 Angstroms.

2004019, Sep 30, 2004

Mar 22, 2004

10/807777

Charles Smith - Houston TX, US

C07C002/00

585/310000

This invention provides for a process for hydrocarbon conversion in which a partially dehydrated hydrocarbon feedstock is contacted with at least two different molecular sieve materials, including a first molecular sieve having a Si/Al molar ratio of less than about 5 and a second molecular sieve having a Si/Al molar ratio of greater than about 5. Also, this invention includes such processes in which such feedstocks are contacted with a first molecular sieve having pores of at least about 6 Angstroms and a second molecular sieve having pores of less than about 6 Angstroms.