Paul W Lewis

US Patent:

47161370, Dec 29, 1987

Filed:

Sep 19, 1984

Appl. No.:

6/652022

Inventors:

Paul H. Lewis - Groves TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C07C 524

US Classification:

502 74

Abstract:

Isomerization is effected at improved conversion and selectivity by use of a 0. 5 w %-2. 5 w % platinum-palladium group metal on hydrogen mordenite catalyst, the catalyst having been calcined at 1200. degree. F. -1500. degree. F. prior to use whereby it acquires activated sites not present in mordenite calcined at lower temperature.

US Patent:

44892160, Dec 18, 1984

Filed:

Jan 25, 1982

Appl. No.:

6/342546

Inventors:

Paul H. Lewis - Groves TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C07C 524

US Classification:

585739

Abstract:

Isomerization is effected at improved conversion and selectivity by use of a 0. 5 w %-2. 5 w % platinum-palladium group metal on hydrogen mordenite catalyst, silica to alumina mole ratio in the range of 10:1 to 20:1, the catalyst having been calcined at 1200. degree. F. -1500. degree. F. prior to use whereby it acquires activated sites not present in mordenite calcined at lower temperature.

US Patent:

46686550, May 26, 1987

Filed:

Mar 17, 1986

Appl. No.:

6/840240

Inventors:

Paul H. Lewis - Groves TX
Eugene P. Dai - Port Arthur TX
Edward H. Holst - Nederland TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

B01J 2104
B01J 2304
B01J 2310

US Classification:

502304

Abstract:

A catalyst composition for catalytic cracking contains a catalytic cracking catalyst and 1-10 weight %, of the total, of additive containing a porous refractory support bearing 0. 5-10 weight % of at least one of bismuth, chromium or a rare earth metal and 0. 4-10 weight % of an alkali metal.

US Patent:

43246982, Apr 13, 1982

Filed:

Oct 20, 1980

Appl. No.:

6/198859

Inventors:

Paul H. Lewis - Groves TX
Joseph A. Durkin - Groves TX
Joseph A. Froelich - Nederland TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

B01J 2912
B01J 3726

US Classification:

252455Z

Abstract:

An improved zeolite-containing cracking catalyst prepared by treating a zeolite-containing cracking catalyst with an aqueous solution containing a fluorine compound, drying and calcining the fluorided catalyst. In a preferred embodiment, the fluorinating solution is an aqueous solution of hydrogen fluoride. The fluorided catalyst may be used per se as a cracking catalyst, or may be physically mixed with a metallic reforming catalyst for use as a cracking catalyst. The fluorided cracking catalysts exhibit improved activity and yield higher octane products than unfluorided cracking catalysts.

US Patent:

45754179, Mar 11, 1986

Filed:

Jun 20, 1985

Appl. No.:

6/746825

Inventors:

Paul H. Lewis - Groves TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C10G 1105
C10G 4562
C10G 4564

US Classification:

208111

Abstract:

Catalytic dewaxing is effected with reduced coking by use of catalyst containing 0. 5 w %-2. 5 w % platinum-palladium group metal on hydrogen mordenite, the catalyst having been calcined at 1200. degree. F. -1600. degree. F. prior to use whereby it acquires activated sites (not present in mordenite products calcined at lower temperature) which are retained under anhydrous conditions.

US Patent:

43246974, Apr 13, 1982

Filed:

Oct 20, 1980

Appl. No.:

6/198662

Inventors:

Paul H. Lewis - Groves TX
James C. Vartuli - West Chester PA

Assignee:

Texaco Inc. - White Plains NY

International Classification:

B01J 2912

US Classification:

252455Z

Abstract:

An improved cracking catalyst prepared by treating a metallic reforming catalyst with an aqueous solution containing a fluorine compound, drying and calcining the fluorided catalyst, and then physically mixing the fluorided catalyst with a zeolite-containing cracking catalyst. The composite yields higher octane products than conventional cracking catalysts.

US Patent:

46068988, Aug 19, 1986

Filed:

Jul 8, 1985

Appl. No.:

6/752871

Inventors:

Paul H. Lewis - Groves TX
Eugene P. Dai - Port Arthur TX
Edward H. Holst - Nederland TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C01B 1700
B01J 800
C10G 1100
C10G 1102

US Classification:

423244

Abstract:

Sulfur oxides are removed from gases by contact with a composition containing 3 w % potassium and 3 w % cerium or alumina.

US Patent:

47988193, Jan 17, 1989

Filed:

Mar 28, 1986

Appl. No.:

6/845721

Inventors:

Paul H. Lewis - Groves TX
Eugene P. Dai - Port Arthur TX
Edward H. Holst - Nederland TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

B01J 2104
B01J 2310
B01J 2316
B01J 2326

US Classification:

502304

Abstract:

A composition of matter, useful for removing sulfur oxides from gases, comprising a porous refractory support bearing as a first component (i) at least one component containing bismuth, chromium, or a rare earth, said first component being in the form of crystals of oxide of crystal size less than about 90 Angstrom units, and as second component at least one alkali metal--a typical composition containing 0. 6 w % K and 4. 8 w % Ce on alumina, the Ce being present as cystals of CeO. sub. 2 of particle size of about 66 Angstrom units.