Howard D Simpson

US Patent:

43965008, Aug 2, 1983

Filed:

Jul 11, 1980

Appl. No.:

6/167679

Inventors:

Howard D. Simpson - Irvine CA

Assignee:

Union Oil Company of California - Los Angeles CA

International Classification:

C10G 1700

US Classification:

208216R

Abstract:

A hydrotreating catalyst comprises molybdenum, nickel, and phosphorus components supported on gamma alumina precalcined at a temperature of at least 1375. degree. F.

US Patent:

53895959, Feb 14, 1995

Filed:

Sep 30, 1993

Appl. No.:

8/130109

Inventors:

Howard D. Simpson - Irvine CA
Suheil F. Abdo - Placentia CA

Assignee:

Union Oil Company of California - Los Angeles CA

International Classification:

B01J 2104

US Classification:

502315

Abstract:

A catalyst containing an overlayer of a catalytic promoter on a porous refractory support containing an underbedded Group VIII metal-containing component. The catalyst is prepared by sequential incorporation of the Group VIII metal followed by the additional catalytic promoter component, usually a Group VIB metal, with the porous refractory oxide support. The catalyst has a MoO. sub. 3 /NiO weight ratio less than 6 to 1 and more than 4 weight percent of NiO. The catalyst is especially useful for simultaneous hydrodenitrogenation and hydrodesulfurization of a gas oil, particularly when the refractory oxide support has a narrow pore size distribution.

US Patent:

40974138, Jun 27, 1978

Filed:

Dec 17, 1976

Appl. No.:

5/751383

Inventors:

Howard D. Simpson - Irvine CA

Assignee:

Union Oil Company of California - Los Angeles CA

International Classification:

B01J 2104
B01J 2388

US Classification:

252465

Abstract:

Highly active cobalt-molybdenum-alumina desulfurization catalysts containing 18-30 weight-percent of MoO. sub. 3 are prepared by first comulling boehmite alumina with aqueous ammonium molybdate solution, drying the resulting mixture, then comulling with a soluble cobalt salt and water, thereafter forming the resulting mixture into extrudates, and finally calcining the extrudates under controlled temperature conditions correlated with the molybdenum content of the catalyst so as to preserve adequate surface area and prevent the formation of large crystallites of cobalt molybdate. This method of preparation permits effective utilization of molybdenum in amounts up to about 30 weight-percent MoO. sub. 3, a result not obtainable by conventional impregnation techniques.

US Patent:

54945682, Feb 27, 1996

Filed:

Jan 31, 1995

Appl. No.:

8/381585

Inventors:

Howard D. Simpson - Irvine CA
Suheil F. Abdo - Placentia CA

Assignee:

UOP - Des Plaines IL

International Classification:

C10G 4904

US Classification:

208 46

Abstract:

A catalyst containing an overlayer of a catalytic promoter on a porous refractory support containing an underbedded Group VIII metal-containing component. The catalyst is prepared by sequential incorporation of the Group VIII metal followed by the additional catalytic promoter component, usually a Group VIB metal, with the porous refractory oxide support. The catalyst has a MoO. sub. 3 /NiO weight ratio less than 6 to 1 and more than 4 weight percent of NiO. The catalyst is especially useful for simultaneous hydrodenitrogenation and hydrodesulfurization of a gas oil, particularly when the refractory oxide support has a narrow pore size distribution.

US Patent:

42552826, Mar 10, 1981

Filed:

May 11, 1979

Appl. No.:

6/038334

Inventors:

Howard D. Simpson - Irvine CA

Assignee:

Union Oil Company of California - Los Angeles CA

International Classification:

B01J 2714
C10G 4504
C10G 1700

US Classification:

252435

Abstract:

A hydrotreating catalyst comprises molybdenum, nickel, and phosphorus components supported on gamma alumina precalcined at a temperature of at least 1375. degree. F.

US Patent:

47433531, May 10, 1988

Filed:

Feb 3, 1986

Appl. No.:

6/825201

Inventors:

Pauline B. Ting - Brea CA
Howard D. Simpson - Irvine CA

Assignee:

Union Oil Company of California - Los Angeles CA

International Classification:

C07C 3700

US Classification:

208 3

Abstract:

A hydrocarbon conversion catalyst containing a Group VIB metal on a porous refractory oxide is prepared by impregnating support particles with a solution containing Group VIB metal components and citric acid, followed by drying and calcining. The catalyst is useful for promoting a number of hydrocarbon conversion reactions, particularly those involving hydrogenative desulfurization, demetallization and denitrogenation.

US Patent:

47433590, May 10, 1988

Filed:

Jan 31, 1986

Appl. No.:

6/825058

Inventors:

Pauline B. Ting - Brea CA
Howard D. Simpson - Irvine CA

Assignee:

Union Oil Company of California - Los Angeles CA

International Classification:

C10G 3504

US Classification:

208134

Abstract:

A hydrocarbon conversion catalyst containing a Group VIB metal on a porous refractory oxide is prepared by impregnating support particles with a solution containing Group VIB metal components and citric acid, followed by drying and calcining. The catalyst is useful for promoting a number of hydrocarbon conversion reactions, particularly those involving hydrogenative desulfurization, demetallization and denitrogenation.

US Patent:

41794109, Dec 18, 1979

Filed:

Jan 3, 1978

Appl. No.:

5/866282

Inventors:

Howard D. Simpson - Irvine CA

Assignee:

Union Oil Company of California - Los Angeles CA

International Classification:

B01J 2104
B01J 2388

US Classification:

252465

Abstract:

Novel, high surface area cobalt-molybdenum-alumina desulfurization catalysts containing 20-30 weight-percent of MoO. sub. 3, and being free of X-ray-detectable cobalt molybdate crystallites, are disclosed. A preferred method of preparation thereof involves first comulling boehmite alumina with aqueous ammonium molybdate solution, drying the resulting mixture, then comulling with a soluble cobalt salt and water, thereafter forming the resulting mixture into extrudates, and finally calcining the extrudates under controlled temperature conditions correlated with the molybdenum content of the catalyst so as to preserve adequate surface area and prevent the formation of large crystallites of cobalt molybdate.