John G Mcwilliams

US Patent:

6525234, Feb 25, 2003

Filed:

Nov 21, 2000

Appl. No.:

09/717705

Inventors:

Ajit B. Dandekar - Marlton NJ
Thomas Francis Degnan - Moorestown NJ
John P. McWilliams - Woodbury NJ
Chaya R. Venkat - Princeton NJ

Assignee:

ExxonMobil Oil Corporation - Fairfax VA

International Classification:

C07C 268

US Classification:

585467

Abstract:

A process for alkylating aromatics comprises: i) contacting a feed containing alkylatable aromatic, e. g. , benzene, under liquid phase alkylating conditions with an alkylating agent, e. g. , ethylene, in the presence of an alkylation catalyst comprising a porous crystalline material, e. g. , MCM-22, to provide an alkylated aromatic product during which contacting said catalyst becomes at least partially deactivated by sorbing catalyst poisons present in said feed; ii) treating said at least partially deactivated catalyst in situ by contacting with at least one polar compound, e. g. , water or acetic acid, having a dipole moment of at least 0. 05 Debyes under conditions of temperature and pressure employed in said liquid phase alkylating conditions which are sufficient to at least partially desorb said catalyst poison from said catalyst; and iii) collecting said alkylated aromatic product.

US Patent:

6909026, Jun 21, 2005

Filed:

Dec 13, 2002

Appl. No.:

10/318882

Inventors:

Ajit B. Dandekar - Marlton NJ, US
Thomas Francis Degnan - Moorestown NJ, US
John P. McWilliams - Woolwich Twp NJ, US
Chaya R. Venkat - Sedona AZ, US

Assignee:

ExxonMobil Oil Corporation - Irving TX

International Classification:

C07C002/68

US Classification:

585467

Abstract:

The catalyst becomes at least partially deactivated by sorbing catalyst poisons present in the feed during a process for alkylating aromatics by contacting a feed containing benzene, toluene, xylenes, alkylbenzenes, naphthalene or substituted naphthalenes under liquid phase alkylating conditions with C-Colefins in the presence of MCM-22, MCM-36, MCM-49, MCM-56, ZSM-5, ZSM-11, ZSM-12, ZSM-23, ZSM-35, ZSM-48, ZSM-50, ZSM-4, ZSM-18, ZSM-20, Zeolite X, Zeolite Y, USY, mordenite or offretite to provide an alkylated aromatic product. The at least partially deactivated catalyst can be treated in situ by contacting with at least one polar compound having a dipole moment of at least 0. 05 Debyes and selected from the group consisting of acetic acid, formic acid, water, and carbon monoxide, under conditions of temperature and pressure employed in the liquid phase alkylating conditions which are sufficient to at least partially desorb the catalyst poison from the catalyst.

US Patent:

RE39222, Aug 1, 2006

Filed:

Feb 19, 2002

Appl. No.:

10/076431

Inventors:

Masahiro Motoyuki - Osaka, JP
Koji Yamamoto - Kobe, JP
Ajit Vishwanath Sapre - Moorestown NJ, US
John Paul McWilliams - Swedesboro NJ, US
Susan Patricia Donnelly - Houston TX, US

Assignee:

Kobe Steel, Ltd. - Kobe
Mobile Oil Corporation - Fairfax VA

International Classification:

C07C 1/00
C07C 4/12
C07C 5/22
C07C 2/68
C08G 63/181

US Classification:

585323, 585312, 585313, 585314, 585315, 585486, 585489, 585478, 585481, 585449, 585450, 585467, 528298, 528272, 528308

Abstract:

A process for producing 2,6-dialkylnaphthalene from a hydrocarbon feedstock that contains at least one component selected from the group consisting of dialkylnaphthalene isomers, monoalkylnaphthalene isomers, polyalkylnaphthalenes, and naphthalene, is provided that includes the following steps:.

US Patent:

49622560, Oct 9, 1990

Filed:

Jan 25, 1990

Appl. No.:

7/469999

Inventors:

Quang N. Le - Cherry Hill NJ
David O. Marler - Deptford NJ
John P. McWilliams - Woodbury NJ
Mae K. Rubin - Bala Cynwyd PA
Joosup Shim - Wenonah NJ
Stephen S. Wong - Medford NJ

Assignee:

Mobil Oil Corp. - Fairfax VA

International Classification:

C07C 266

US Classification:

585467

Abstract:

Long chain alkyl aromatic compounds are prepared by alkylating an alkylatable aromatic compound with a long chain alkylating agent in the presence of catalyst comprising a synthetic porous crystalline material characterized by an X-ray diffraction pattern including interplanar d-spacings at 12. 36. +-. 4, 11. 03. +-. 2, 8. 83. +-. 14, 6. 18. +-. 12, 6. 00. +-. 10, 4. 06. +-. 07, 3. 91. +-. 07 and 3. 42. +-. 06 Angstroms.

US Patent:

54179491, May 23, 1995

Filed:

Aug 25, 1993

Appl. No.:

8/112396

Inventors:

John P. McWilliams - Woodbury NJ
David S. Shihabi - Pennington NJ
Richard F. Socha - Newtown PA
Hye K. C. Timken - Woodbury NJ

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

B01J 802

US Classification:

4232392

Abstract:

A process for converting noxious nitrogen oxides present in oxygen-containing gaseous effluents to N. sub. 2 and H. sub. 2 O comprising reacting the gaseous effluent with an effective amount of ammonia in the presence of a catalyst having a Constraint Index of up to about 12, said catalyst having a Constraint Index of up to about 12, said catalyst being composited with a binder containing at least one selected from the group consisting of titania, zirconia, and silica.

US Patent:

49926063, Feb 12, 1991

Filed:

Jan 25, 1990

Appl. No.:

7/469998

Inventors:

John D. Kushnerick - Boothwyn PA
David O. Marler - Deptford NJ
John P. McWilliams - Woodbury NJ
Charles M. Smith - Princeton NJ

Assignee:

Mobil Oil Corp. - Fairfax VA

International Classification:

C07C 266

US Classification:

585467

Abstract:

Relatively short chain alkyl aromatic compounds are prepared by alkylating an alkylatable aromatic compound with a relatively short chain alkylating agent under alkylation reaction conditions in the presence of catalyst comprising a synthetic porous crystalline material characterized by an X-ray diffraction pattern including interplanar d-spacings at 12. 36. +-. 4, 11. 03. +-. 2, 8. 83. +-. 14, 6. 18. +-. 12, 6. 00. +-. 10, 4. 06. +-. 07, 3. 91. +-. 07 and 3. 42. +-. 06 Angstroms.

US Patent:

54513871, Sep 19, 1995

Filed:

Jul 7, 1994

Appl. No.:

8/271692

Inventors:

Maria D. Farnos - Wilmington DE
John P. McWilliams - Woodbury NJ
Sanjay B. Sharma - Langhorne PA
David S. Shihabi - Pennington NJ
Scott A. Stevenson - Langhorne PA
James C. Vartuli - West Chester PA

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

C01B 2120

US Classification:

4232392

Abstract:

An exhaust gas treatment process useful for the removal of nitrogen oxides using an iron containing zeolite as the catalyst and ammonia as a reducing agent. It is desired to extend the effective temperature range for the selective catalytic reduction (SCR) of nitrogen oxides below about 400. degree. C. This is accomplished in the instant invention through the use of an intermediate pore size zeolite, such as ZSM-5, based catalyst which has been treated to incorporate iron into its pores.

US Patent:

51456591, Sep 8, 1992

Filed:

Nov 20, 1989

Appl. No.:

7/439007

Inventors:

John P. McWilliams - Woodbury NJ

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

C01B 3334

US Classification:

423328

Abstract:

A process for producing zeolites in a matrix material is described which comprises precipitating an oxide of silicon in the matrix to increase the silica of the matrix which is available for crystallization to a zeolite.