Charles H Schrader

US Patent:

43881750, Jun 14, 1983

Filed:

Dec 14, 1981

Appl. No.:

6/330625

Inventors:

Thomas A. Lionetti - Houston TX
Charles H. Schrader - Groves TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C10G 1105
C10G 5508

US Classification:

208 74

Abstract:

A process for the production of highly aromatic petroleum fractions from various petroleum feedstocks suitable for catalytic cracking in a fluidized catalytic cracking unit wherein heavy gas oil from a first fluidized catalytic cracking unit is subjected to further catalytic cracking in a separate fluid catalytic cracking unit at temperatures in the range of 565. degree. to 650. degree. C. producing light olefins and a heavy gas oil consisting of essentially aromatic components suitable for the production of needle coke, and the method of producing needle coke from various hydrocarbon cracking stocks.

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:

46247718, Nov 25, 1986

Filed:

Sep 18, 1985

Appl. No.:

6/777146

Inventors:

Philip A. Lane - Port Arthur TX
Charles H. Schrader - Groves TX
Glenn A. Clausen - Nederland TX
David E. Self - Port Neches TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C10G 1118
C10G 5102

US Classification:

208 74

Abstract:

A mixture of hydrocarbons consisting of gas oil and residual oil is catalytically cracked in the presence of a fluidized zeolite catalyst. The mixture of hydrocarbons is classified by boiling range as a 550. degree. -1000. degree. F. gas oil and a 1000+. degree. F. vacuum residuum. The gas oil is selectively cracked using a freshly regenerated fluid zeolite catalyst having less than 0. 1 wt % residual carbon to give a high yield of desirable liquid hydrocarbon boiling from about 60. degree. -670. degree. F. The vacuum residuum is injected into the riser reactor at a point near the riser outlet to quench the cracking reactions in the gas oil. The vacuum residuum undergoes a small amount of reaction removing undesirable materials and yielding a liquid hydrocarbon boiling up to about 1000. degree. F. The amount of vacuum residuum cracking and overall yield of liquid hydrocarbons are controlled by downstream injection of vacuum residuum into the riser.

US Patent:

57025894, Dec 30, 1997

Filed:

Jul 3, 1996

Appl. No.:

8/674963

Inventors:

Chih-Hao Mark Tsang - Houston TX
Randall Hughes Petty - Port Neches TX
Glenn Allen Clausen - Port Arthur TX
Charles Henry Schrader - Groves TX

Assignee:

ABB Lummus Global Inc. - Bloomfield NJ

International Classification:

C10G 5102

US Classification:

208 67

Abstract:

Disclosed is a process for converting olefinic hydrocarbons using spent FCC catalysts which comprises using spent FCC catalysts, optionally containing spent FCC additives, in the reactor/stripper part of the FCCU, instead of or in addition to a separate olefin upgrader, to upgrade C. sub. 2 -C. sub. 8 oligomerizable olefins, preferably propylene and ethylene, into C. sub. 4 /C. sub. 5 olefins and isoparaffins as well as gasoline, wherein feedstock can be product streams of the FCCU containing propylene/ethylene such as, for example, the absorber and depropanizer overheads.

US Patent:

40181863, Apr 19, 1977

Filed:

May 5, 1975

Appl. No.:

5/574439

Inventors:

Charles E. Schrader - Northridge CA

International Classification:

B05C 312

US Classification:

118405

Abstract:

A machine for impregnating a fabric of woven fibers with a viscous liquid. The machine comprises a chamber to contain the medication, first and second slots in opposite sidewalls of the chamber with overlying, first and second, resilient seals carried on the walls of the chamber and bearing fabric-receiving slits. The machine is provided with a supply roll of a continuous band of fabric, e. g. , medical gauze, and a motorized take-up spindle whereby a continuous strip of gauze can be passed through the slits of the seals and the chamber, and be impregnated with the viscous ointment within the chamber. Preferably, the chamber carries a platform plate at the level of the slits and a plurality of apertures are provided in the platform plate. The band of fabric or gauze is directed through the chamber and over the surface of the platform plate so that during its passage through the chamber the viscous material within the chamber will be extruded into the open, porous weave of the fabric or gauze.

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.

US Patent:

44366132, Mar 13, 1984

Filed:

Dec 3, 1982

Appl. No.:

6/446812

Inventors:

Scott M. Sayles - Nederland TX
Leonce F. Castagnos - Nederland TX
Charles H. Schrader - Groves TX
Edward W. Dillingham - Ontario CA
Richard P. Scott - late of Groves TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C10G 5102
B01J 826
B01J 828

US Classification:

208 74

Abstract:

A two-stage cascade flow fluid catalytic cracking process capable of converting high molecular weight hydrocarbons containing catalyst poisons into products of lower molecular weight with high activity cracking catalyst susceptible to catalyst poisons, the cascade flow process resulting in higher yields of desired motor fuel fractions than those obtainable with conventional riser flow fluid catalytic cracking processes. Catalyst poisons, e. g. nitrogen compounds, sulfur compounds, heavy metal compounds and high Conradson Carbon Residues, are removed from the heavy hydrocarbon charge stocks by first contacting the charge stock containing catalyst poisons with a low activity catalyst comprising used catalyst from the process under fluid catalytic cracking reaction conditions effective for the conversion of a minor portion of the heavy feed hydrocarbons to hydrocarbons of lower molecular weight, recovering gas oils from the products of said first fluid catalytic cracking reactor and subjecting the gas oils to more severe cracking conditions in the presence of high activity cracking catalyst, e. g. a molecular sieve catalyst.