Robert J Thomson

US Patent:

54897190, Feb 6, 1996

Filed:

Jun 6, 1994

Appl. No.:

8/255546

Inventors:

Quang N. Le - Cherry Hill NJ
Robert T. Thomson - Lawrenceville NJ

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

C07C 4108
C07C 4300
C07C 508
C07C 7167

US Classification:

585261

Abstract:

A process is disclosed for the production of alkyl tertiary alkyl ethers in C. sub. 4 + hydrocarbon streams rich in isoolefins, typically containing catalyst deactivating amounts of dienes and/or compounds containing heteroatoms. The process is especially advantageous in extending the cycle length for the zeolite catalyzed etherification of isoolefins in C. sub. 4 + FCC gasoline by reducing catalyst aging. It has been discovered that if hydrogen is cofed with the alkanol and C. sub. 4 + isoolefin rich feedstreams to an etherification reaction catalyzed by acidic zeolite wherein the zeolite has been impregnated with a noble metal the rate of catalyst aging or deactivation is substantially lowered. The process is especially effective, i. e. , catalyst aging is particularly reduced, when hydrogen is cofed to an etherification reaction using acidic zeolite Beta catalyst containing palladium.

US Patent:

52585654, Nov 2, 1993

Filed:

May 4, 1992

Appl. No.:

7/878111

Inventors:

Charles T. Kresge - West Chester PA
Quang N. Le - Cherry Hill NJ
Wieslaw J. Roth - Sewell NJ
Robert T. Thomson - Lawrenceville NJ

Assignee:

Mobil Oil Corp. - Fairfax VA

International Classification:

C07C 266

US Classification:

585467

Abstract:

Short chain alkyl aromatic compounds are prepared by alkylating an alkylatable aromatic compound with a short chain alkylating agent in the presence of catalyst comprising a synthetic porous MCM-36 material.

US Patent:

51342413, Jul 28, 1992

Filed:

Jun 21, 1991

Appl. No.:

7/718879

Inventors:

Quang N. Le - Cherry Hill NJ
Robert T. Thomson - Voorhees NJ
Grant H. Yokomizo - Cherry Hill NJ

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

C07C 200

US Classification:

585332

Abstract:

A process for upgrading olefinic feedstocks containing lower olefins employing new synthetic catalyst of ultra-large pore crystalline material. The new crystalline material exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams at 50 torr and 25. degree. C. , a hexagonal electron diffraction pattern that can be indexed with a d. sub. 100 value greater than about 18 Angstrom Units and a hexagonal arrangement of uniformly sized pores with a maximum perpendicular cross section of at least about 13 Angstrom units. A multistage process is provided for catalytic oligomerization of lower olefin which comprises contacting olefinic feedstock under catalytic conversion conditions with acid metallosilicate solid catalyst having the structure of MCM-41 with hexagonal honeycomb lattice structure consisting essentially of uniform pores in the range of about 20 to 100 Angstroms. The oligomerization reaction is very selective, especially when conducted at temperature of about 40. degree. to 250. degree. C. , yielding branched intermediate olefins.

US Patent:

52585662, Nov 2, 1993

Filed:

May 4, 1992

Appl. No.:

7/878277

Inventors:

Charles T. Kresge - West Chester PA
Quang N. Le - Cherry Hill NJ
Wieslaw J. Roth - Sewell NJ
Robert T. Thomson - Lawrenceville 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 MCM-36 material.

US Patent:

52866912, Feb 15, 1994

Filed:

Oct 26, 1992

Appl. No.:

7/966475

Inventors:

Mohsen N. Harandi - Langhorne PA
Joseph A. Herbst - Turnersville NJ
Hartley Owen - Belle Mead NJ
Paul H. Schipper - Doylestown PA
Robert T. Thomson - Lawrenceville NJ

Assignee:

Mobil Oil Coproration - Fairfax VA

International Classification:

B01J 3830
B01J 2938
B01J 3872
C10G 1118

US Classification:

502 41

Abstract:

A process for demetallizing metals contaminated FCC catalyst in an FCC regenerator. A metals getter additive, with higher settling velocity, is added to the regenerator, to remove metals from FCC catalyst by solid-solid interaction. The FCC catalyst forms a light, discrete, dense phase fluidized bed on top of a fluidized bed of additive. FCC catalyst is recycled to the cracking reactor from the top fluidized bed, while additive can be withdrawn from the lower fluidized bed for disposal or for metals recovery and recycle. Additive can be optimized for metals removal and will not dilute the cracking catalyst in the FCC reactor.

US Patent:

52325806, Aug 3, 1993

Filed:

Jun 21, 1991

Appl. No.:

7/719205

Inventors:

Quang N. Le - Cherry Hill NJ
Robert T. Thomson - Voorhees NJ

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

C10G 1105

US Classification:

208114

Abstract:

A process for naphtha cracking employing new synthetic catalyst of ultra-large pore crystalline material. The new crystalline material exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams at 50 torr and 25. degree. C. , a hexagonal electron diffraction pattern that can be indexed with a d. sub. 100 value greater than about 18 Angstrom Units and a hexagonal arrangement of uniformly sized pores with a maximum perpendicular cross section of at least about 13 Angstrom units. An improved cracking reaction is provided for catalytic conversion of hydrocarbon feedstock which comprises contacting the feedstock under catalytic conversion conditions with acid metallosilicate solid catalyst having the structure of MCM-41 with hexagonal honeycomb lattice structure consisting essentially of uniform pores in the range of about 20 to 100 Angstroms. The cracking reaction is very selective, especially when conducted at temperature of about 425. degree. to 650. degree. C.

US Patent:

52849848, Feb 8, 1994

Filed:

Dec 29, 1992

Appl. No.:

7/998807

Inventors:

Ralph M. Dessau - Edison NJ
Quang N. Le - Cherry Hill NJ
Samuel A. Tabak - Voorhees NJ
Robert T. Thomson - Voorhees NJ

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

C07C 502
C07C 522

US Classification:

585253

Abstract:

A method for upgrading an aromatics-containing charge composition boiling in the gasoline boiling range comprises i) contacting the charge composition with a nitrating agent under nitrating conditions to form a product comprising nitrated aromatics; ii) hydrogenating a feed containing the product of i) under conditions sufficient to substantially reduce the nitro group of the nitrated aromatics so as to form a product comprising aromatic amines, water and heavy amines; and iii) removing the water and heavy amines from the product of step ii) to provide a gasoline boiling range product of an octane rating greater than the charge composition.

US Patent:

54912709, Feb 13, 1996

Filed:

Jul 22, 1994

Appl. No.:

8/278713

Inventors:

Arthur A. Chin - Cherry Hill NJ
Nick A. Collins - Medford NJ
Mohsen N. Harandi - Langhorne PA
Robert T. Thomson - Lawrenceville NJ
Robert A. Ware - Wyndmoor PA

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

C07C 266

US Classification:

585467

Abstract:

A benzene-rich gasoline stream is alkylated with higher olefins in contact with a fluid bed of shape selective zeolite catalyst to produce a gasoline product stream reduced in benzene content wherein the high octane value alkylaromatics formed by benzene alkylation are of low carbon number, essentially C10-. Concurrently, a portion of olefins in the gasoline stream are converted to gasoline boiling range hydrocarbons and the sulfur content of the gasoline feedstream is lowered. Besides enhancing the octane value of the feedstream, the process results in a lower Reid vapor pressure and lower sulfur content.