Gerald J Nelson

Address:

18242 17 St, Princeton, MN 55371

VIN:

1GKDT13S572216960

Make:

GMC

Model:

ENVOY

Year:

2007

US Patent:

H002029, Jun 4, 2002

Filed:

Nov 1, 1993

Appl. No.:

08/143598

Inventors:

Gerald Verdell Nelson - Nederland TX
Lee Kessie Gilmer - Nederland TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

B01J 1900

US Classification:

422241, 422228, 422107, 585723

Abstract:

A safety apparatus has been found for recovering an airborne hydrogen fluoride release in a hydrocarbon alkylation process. The safety apparatus comprising containment baffles and hydrogen fluoride detectors. Hydrogen fluoride detectors activate water flood means which discharge into the containment baffles. The water flood containing essentially all of the hydrogen fluoride release is recovered for disposal. Recoveries of 90 wt % have been demonstrated.

US Patent:

39533212, Apr 27, 1976

Filed:

Dec 27, 1974

Appl. No.:

5/537033

Inventors:

Charles A. Ganster - Port Arthur TX
Mary E. Callaghan - Port Arthur TX
Lee K. Gilmer - Nederland TX
Gerald V. Nelson - Nederland TX
Kenneth D. Miller - Port Neches TX

Assignee:

Texaco Inc. - New York NY

International Classification:

C10G 2302

US Classification:

208216

Abstract:

A desulfurization catalyst is activated by being heated to a temperature between about 750. degree. and 850. degree. F. in the presence of the charge stock to be desulfurized during the initial stages of the on-stream period. In a preferred embodiment the catalyst, prior to the heat treatment, is sulfided at a low temperature and low pressure. The resulting catalyst effectively desulfurizes a petroleum hydrocarbon charge stock with reduced hydrogen consumption.

US Patent:

54160545, May 16, 1995

Filed:

Feb 25, 1993

Appl. No.:

8/077807

Inventors:

Gerald V. Nelson - Nederland TX
Govanon Nongbri - Port Neches TX
Roy E. Pratt - Port Neches TX
David E. Sherwood - Beaumont TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

B01J 2719
B01J 27188
B01J 2718

US Classification:

502211

Abstract:

Heavy oils may be hydrotreated in the presence of a porous alumina support bearing metals of Group VIII and VI-B and optionally phosphorus, the catalyst having a Total Surface Area of 165-230 m. sup. 2 /g, a Total Pore Volume of 0. 5-0. 8 cc. g, and a Pore Diameter Distribution whereby less than about 5% the Total Pore Volume is present as primary micropores of diameter less than 80. ANG. , and secondary micropores of diameter of +20. ANG. of a Pore Mode of 100-135. ANG. are present in amount of at least about 65% of the micropore volume having pores with diameter less than 250. ANG. , and 22-29% of the Total Pore Volume is present as macropores of diameter >250. ANG. The process of the instant invention is particularly effective in achieving desired levels of hydrodemetallation, hydrodesulfurization, and hydrocracking of asphaltenes in the fraction of hydrotreated/hydrocracked petroleum resid product having a boiling point greater than 1000. degree. F.

US Patent:

51567334, Oct 20, 1992

Filed:

Aug 23, 1991

Appl. No.:

7/749087

Inventors:

Govanon Nongbri - Port Neches TX
Gerald V. Nelson - Nederland TX
Stanley M. Farabee - Beaumont TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C10G 4520

US Classification:

208108

Abstract:

In an ebullated bed process, it has been found that in switching from one sediment yielding feedstock to a second sediment yielding feedstock that the transient sediment concentration has caused unit shutdowns with lost production. A method has been found which avoids these high transient sediment concentrations. Fresh addition is substituted for regenerated catalyst addition until the average carbon on catalyst in the bed drops to 22 wt% basis carbon free catalyst. Second feedstock is added incrementally and sediment in the product analyzed. After full second feedstock rate is achieved, first feedstock is reduced incrementally with sediment analysis. Higher unit utilization is achieved with the corresponding increased yearly production.

US Patent:

54683718, Nov 21, 1995

Filed:

Apr 11, 1994

Appl. No.:

8/226191

Inventors:

Gerald V. Nelson - Nederland TX
Govanon Nongbri - Port Neches TX
Roy E. Pratt - Port Neches TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C10G 4504
C10G 4712

US Classification:

208216PP

Abstract:

Heavy hydrocarbons are hydrotreated to increase content of components boiling below 1000. degree. F. by contact with Group VIII non-noble metal oxide and Group VIB metal oxide on alumina having a Total Surface Area of 175-220 m. sup. 2 /g, a Total Pore Volume (TPV) of 0. 6-0. 8, and a Pore Diameter Distribution whereby. ltoreq. 33% of the TPV is present as primary micropores of diameter. ltoreq. 100. ANG. , at least about 41% of TPV is present as secondary micropores of diameter of about 100. ANG. -200. ANG. , and about 16%-26% of the TPV is present as mesopores of diameter. gtoreq. 200. ANG. Phosphorus containing compounds are avoided during catalyst preparation.

US Patent:

41728181, Oct 30, 1979

Filed:

Aug 25, 1978

Appl. No.:

5/937025

Inventors:

Gerald V. Nelson - Nederland TX
Charles H. Schrader - Groves TX
Lee K. Gilmer - Nederland TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C10G 2302

US Classification:

208216R

Abstract:

The hydrogen consumption in the catalytic desulfurization of hydrocarbon oils is reduced by the incorporation in the catalyst of a small amount of arsenic.

US Patent:

54945704, Feb 27, 1996

Filed:

Jun 24, 1994

Appl. No.:

8/264881

Inventors:

Govanon Nongbri - Port Neches TX
Gerald V. Nelson - Nederland TX
David E. Self - Port Neches TX
Glenn A. Clausen - Nederland TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C10G 4700

US Classification:

208108

Abstract:

An improvement has been discovered in an ebullated bed process. A residual hydrocarbon oil feedstock is hydrocracked to yield a product oil. The amount of sediment in the product oil is controlled by adjusting hydrogen partial pressure according to an algorithm. A change in temperature and residence time is avoided.

US Patent:

51085801, Apr 28, 1992

Filed:

Mar 8, 1989

Appl. No.:

7/320432

Inventors:

Govanon Nongbri - Port Neches TX
Gerald V. Nelson - Nederland TX
Roy E. Pratt - Port Neches TX
Charles H. Schrader - Groves TX
William B. Livingston - Baton Rouge LA
Michael P. Bellinger - Baton Rouge LA
Scott M. Sayles - Baton Rouge LA

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C10G 6904

US Classification:

208 61

Abstract:

In a two stage catalytic cracking process a heavy cycle gas oil fraction (HCGO) nominal boiling range 600. degree. F. to 1050. degree. F. , API gravity of -10. degree. to +10. degree. and 65 to 95 vol % aromatics is recycled to extinction between an ebullated bed hydrocracking zone and fluidized catalytic cracking zone to yield a liquid fuel and lighter boiling range fraction as the light fraction from each zone. The catalyst in the fluidized catalytic cracking zone is maintained at a micro activity 68 to 72 while cracking a virgin gas oil to HCGO. HCGO is then mixed with vacuum residuum and hydrocracked in an ebullated bed reactor. The mid range fraction is recycled to the fluidized catalytic cracking zone. The 1000. degree. F. sup. + fraction is blended with a fuel oil.