Darrell A Walker

US Patent:

51324725, Jul 21, 1992

Filed:

Oct 17, 1990

Appl. No.:

7/599185

Inventors:

Vincent A. Durante - West Chester PA
Darrell W. Walker - Media PA
Steven M. Gussow - Wallingford PA
James E. Lyons - Wallingford PA
Robert C. Hayes - Media PA

Assignee:

Sun Refining and Marketing Company - Philadelphia PA

International Classification:

C07C 2950
C07C 3104
C07C 200

US Classification:

568910

Abstract:

Process is provided for oxidation of organic compounds in which a reaction zone is provided, containing an open space and a bed of solid granular catalyst, an organic feedstock and oxygen are passed in gas phase through the open space and then into contact with the catalyst bed, and reaction products are removed from the open space after relatively less contact with the catalyst, and from at least one other location after relatively greater contact with the catalyst. Greater yield of desired product may be obtained in such operation than in operation where all of the reaction products are removed after the greater contact with the catalyst.

US Patent:

47940956, Dec 27, 1988

Filed:

Jul 2, 1987

Appl. No.:

7/069553

Inventors:

Darrell W. Walker - Media PA
Fu M. Lee - Bartlesville OK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

B01J 2906
B01J 2908

US Classification:

502 64

Abstract:

A composition of matter, suitable as cracking catalyst, comprises zeolite, silica matrix and vanadium oxide(s) at a level of at least 0. 2 weight-% V. A process for preparing the above composition of matter comprises the steps of contacting zeolite in a silica matrix with at least one vanadium compound and calcining the thus contacted material. A process for cracking substantially liquid hydrocarbon-containing feed streams, which contain at least about 5 ppmw vanadium, in the presence of the above composition of matter as catalyst, is provided.

US Patent:

54141575, May 9, 1995

Filed:

Jul 20, 1992

Appl. No.:

7/916915

Inventors:

Vincent A. Durante - West Chester PA
Darrell W. Walker - Visalia CA
Steven M. Gussow - Glen Mills PA
James E. Lyons - Wallingford PA
Robert C. Hayes - Media PA

Assignee:

Sun Company, Inc. (R&M) - Philadelphia PA

International Classification:

C07C 2900
C07C 3506

US Classification:

568840

Abstract:

Process and apparatus are provided for oxidation of oxidation of organic compounds in which a reaction zone is provided, containing an open space and a bed of solid granular catalyst, an organic feedstock and oxygen are passed in gas phase through the open space and then into contact with the catalyst bed, and reaction products are removed from the open space after relatively less contact with the catalyst, and from at least one other location after relatively greater contact with the catalyst. Greater yield of desired product may be obtained in such operation than in operation where all of the reaction products are removed after the greater contact with the catalyst.

US Patent:

48469602, Jul 11, 1989

Filed:

Jun 14, 1988

Appl. No.:

7/206548

Inventors:

Darrell W. Walker - Media PA
Fu M. Lee - Bartlesville OK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

C10G 1105

US Classification:

208119

Abstract:

A composition of matter, suitable as cracking catalyst, comprises zeolite, silica matrix and vanadium oxide(s) at a level of at least 0. 2 weight-% V. A process for preparing the above composition of matter comprises the steps of contacting zeolite in a silica matrix with at least one vanadium compound and calcining the thus contacted material. A process for cracking substantially liquid hydrocarbon-containing feed streams, which contain at least about 5 ppmw vanadium, in the presence of the above composition of matter as catalyst, is provided.

US Patent:

54398592, Aug 8, 1995

Filed:

Apr 27, 1992

Appl. No.:

7/874499

Inventors:

Vincent A. Durante - West Chester PA
Daniel E. Resasco - Media PA
Darrell W. Walker - Visalia CA
Gary L. Haller - Hamden CT
Eugene L. Coggins - Malvern PA

Assignee:

Sun Company, Inc. (R&M) - Philadelphia PA

International Classification:

B01J 29064
B01J 29072

US Classification:

502 66

Abstract:

Alkanes are dehydrogenated by passage through alternating dehydrogenation zones and selective oxidation zone(s), in which latter zone(s) hydrogen produced in the preceding endothermic dehydrogenation reaction is selectively oxidized to generate heat for the succeeding dehydrogenation reaction. New catalyst compositions are prepared comprising reduced and sulfided nickel crystallites on siliceous supports which have been treated with chromium compounds and oxidized to provide surface-anchored chromyl species. Also new catalyst compositions are prepared by sulfiding nickel-containing compositions with carbonaceous sulfur compounds such as dialkylsulfoxides. Another embodiment of the invention is catalyst and dehydrogenation therewith, in which pores having radius of 50 to 200 Angstroms occupy pore volume from 0. 30 to 1. 50 ml per gram of the support, and pores having radius of 20 to 50 Angstroms occupy pore volume less than 0. 1 ml per gram of the support.

US Patent:

49182498, Apr 17, 1990

Filed:

Apr 17, 1989

Appl. No.:

7/338916

Inventors:

Vincent A. Durante - West Chester PA
Darrell W. Walker - Media PA
Steven M. Gussow - Wallingford PA
James E. Lyons - Wallingford PA

Assignee:

Sun Refining and Marketing Company - Philadelphia PA

International Classification:

C07C 2950
C07C 3104
C07C 200

US Classification:

568910

Abstract:

Silicometallates containing iron in the structural framework are employed as catalysts for the oxidation of hydrocarbons or oxygenated hydrocarbons, for example the vapor phase oxidation of methane to methanol.

US Patent:

57335184, Mar 31, 1998

Filed:

Jul 10, 1996

Appl. No.:

8/678016

Inventors:

Vincent A. Durante - West Chester PA
Daniel E. Resasco - Media PA
Darrell W. Walker - Visalia CA
Gary L. Haller - Hamden CT
Eugene L. Coggins - Malvern PA

Assignee:

Sun Company, Inc. (R&M) - Philadelphia PA

International Classification:

C01B 300

US Classification:

423248

Abstract:

The invention comprises a process for selectively oxidizing hydrogen in a mixture with other gaseous materials by contacting the hydrogen containing gas under oxidation conditions with a catalyst comprising a phosphate of a metal wherein the metal is selected from the group consisting of germanium, tin, lead, arsenic, antimony and bismuth.

US Patent:

53860748, Jan 31, 1995

Filed:

Jul 30, 1993

Appl. No.:

8/100595

Inventors:

Vincent A. Durante - West Chester PA
James E. Lyons - Wallingford PA
Darrell W. Walker - Visalia CA

Assignee:

Sun Company, Inc. (R&M) - Philadelphia PA

International Classification:

C07C 5327

US Classification:

585658

Abstract:

Barium peroxide in which has been incorporated a transition metal compound is used as a catalyst for the oxidative dehydrogenation of organic compounds in the presence of terminal oxidants.