William C Crouch

US Patent:

44001800, Aug 23, 1983

Filed:

Jun 10, 1981

Appl. No.:

6/272419

Inventors:

Charles P. Marion - Mamaroneck NY
William B. Crouch - Chappaqua NY
Albert Brent - Huntington NY
George N. Richter - San Marino CA
Edward T. Child - Tarrytown NY
Blake Reynolds - Riverside CT

Assignee:

Texaco, Inc. - White Plains NY

International Classification:

C10J 346

US Classification:

48197R

Abstract:

A partial oxidation process and control system for continuously producing synthesis gas, fuel gas or reducing gas in which one process fuel is replaced by a different fuel without shutting down or depressurizing the gas generator. This multifuel process is not tied to one particular fuel and reacts slurries of solid carbonaceous fuel and/or liquid or gaseous hydrocarbonaceous fuels. Suitable burners for introducing the feedstreams into the gas generator comprise a central conduit means radially spaced from a concentric coaxial outer conduit having a downstream exit nozzle, and providing a coaxial annular passage means therebetween. The central conduit means may be retracted upstream from the burner face a distance of about 0 to 12 and preferably 3 to 10 times the minimum diameter of the central exit orifice. A premix zone is preferably provided comprising one or more, say 2 to 5 coaxial chambers in series where substantial mixing of the reactant streams and optionally volatilization of the slurry medium takes place. A control system is provided for switching the type of reactant fuel stream flowing through either the central conduit means or the annular passage means of the burner and adjusting the flow rates of the reactant stream of free-oxygen containing gas.

US Patent:

44901569, Dec 25, 1984

Filed:

Sep 24, 1982

Appl. No.:

6/422938

Inventors:

Charles P. Marion - Mamaroneck NY
William B. Crouch - Chappaqua NY
Albert Brent - Huntington NY
George N. Richter - San Marino CA
Edward T. Child - Tarrytown NY
Blake Reynolds - Riverside CT

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C10J 350

US Classification:

48 61

Abstract:

A control system for a partial oxidation process for continuously producing synthesis gas, fuel gas or reducing gas in which process one fuel is replaced by a different fuel without shutting down or depressurizing the gas generator. This multifuel process is not tied to one particular fuel and reacts slurries of solid carbonaceous fuel and/or liquid or gaseous hydrocarbonaceous fuels. Problems of fuel availability are reduced due to the wide selection of fuels that are suitable for the subject process. A two-section burner having a high turndown feature is employed that comprises a central conduit; a central bunch of tubes positioned in said central conduit; an outer conduit coaxial with said central conduit and forming an annular passage therewith; and an annular bunch of tubes positioned in said annular passage. The downstream ends of said central and/or annular bunches of tubes are respectively retracted upstream from the burner face a distance of about 0 to 12 i. e. 3 to 10 times the minimum diameter of the central exit orifice and the minimum width of the annular exit orifice.

US Patent:

43516459, Sep 28, 1982

Filed:

Jul 14, 1980

Appl. No.:

5/167876

Inventors:

Charles P. Marion - Mamaroneck NY
Albert Brent - Huntington NY
George N. Richter - San Marino CA
William B. Crouch - Chappaqua NY
Edward T. Child - Tarrytown NY
Blake Reynolds - Riverside CT

Assignee:

Texaco, Inc. - White Plains NY

International Classification:

C10J 350

US Classification:

48 61

Abstract:

A burner for producing synthesis gas, fuel gas or reducing gas from slurries of solid carbonaceous fuel and/or liquid or gaseous hydrocarbon fuel. The burner has a high turndown feature and comprises a central conduit; a central bunch of parallel tubes that extend longitudinally through said central conduit; an outer conduit coaxial with said central conduit and forming an annular passage therewith; and an annular bunch of parallel tubes that extend longitudinally through said annular passage; and wherein the downstream ends of said central and annular bunches of parallel tubes are respectively retracted upstream from the burner face a distance of about 0 to 12 i. e. 3 to 10 times the minimum diameter of the central exit orifice and the minimum width of the annular exit orifice. Three ranges of flow through the burner may be obtained by using one or both bunches of tubes and their surrounding conduits. Throughput levels may be rapidly changed--up and down--without sacrificing stable operation.

US Patent:

45590613, Dec 17, 1985

Filed:

Oct 19, 1984

Appl. No.:

6/662661

Inventors:

Frederick C. Jahnke - Rye NY
William B. Crouch - Chappaqua NY
George M. Gulko - Houston TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C10J 348
C10J 384
C10J 386

US Classification:

48 63

Abstract:

Synthesis gas is produced by partial oxidation of hydrocarbon charge, a first portion being cooled by indirect heat exchange and scrubbed before being combined with the quenched second portion en route to particulate scrubbing, the combined gas scrubber overhead being characterized by a desired steam:dry gas ratio which is controlled by regulating the flow of the quenched second portion in accordance with the measured properties of the combined scrubber overhead gas.

US Patent:

45028699, Mar 5, 1985

Filed:

Jul 5, 1983

Appl. No.:

6/510488

Inventors:

Frederick C. Jahnke - Rye NY
William B. Crouch - Chappaqua NY
George M. Gulko - Houston TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C10J 346

US Classification:

48197R

Abstract:

Synthesis gas is produced by partial oxidation of hydrocarbon charge, a first portion being cooled by indirect heat exchange and scrubbed before being combined with the quenched second portion en route to particulate scrubbing, the combined gas scrubber overhead being characterized by a desired steam:dry gas ratio which is controlled by regulating the flow of the quenched second portion in accordance with the measured properties of the combined scrubber overhead gas.

US Patent:

44001797, Aug 23, 1983

Filed:

Jun 10, 1981

Appl. No.:

6/272417

Inventors:

Charles P. Marion - Mamaroneck NY
Albert Brent - Huntington NY
George N. Richter - San Marino CA
William B. Crouch - Chappaqua NY
Edward T. Child - Tarrytown NY
Blake Reynolds - Riverside CT

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C10J 350

US Classification:

48 86R

Abstract:

A burner and partial oxidation process for producing synthesis gas, fuel gas or reducing gas from slurries of solid carbonaceous fuel and/or liquid or gaseous hydrocarbon fuel. The burner has a high turndown feature and comprises a central conduit; a central bunch of parallel tubes that extend longitudinally through said central conduit; an outer conduit coaxial with said central conduit and forming an annular passage therewith; and an annular bunch of parallel tubes that extend longitudinally through said annular passage; and wherein the downstream ends of said central and annular bunches of parallel tubes are respectively retracted upstream from the burner face a distance of about 0 to 12 i. e. 3 to 10 times the minimum diameter of the central exit orifice and the minimum width of the annular exit orifice. Three ranges of flow through the burner may be obtained by using one or both bunches of tubes and their surrounding conduits.

US Patent:

43928692, Jul 12, 1983

Filed:

Jun 10, 1981

Appl. No.:

6/272415

Inventors:

Charles P. Marion - Mamaroneck NY
Albert Brent - Huntington NY
George N. Richter - San Marino NY
William B. Crouch - Chappaqua NY
Edward T. Child - Tarrytown NY
Blake Reynolds - Riverside CT

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C10J 346

US Classification:

48197R

Abstract:

A burner and partial oxidation process for producing synthesis gas, fuel gas or reducing gas from slurries of solid carbonaceous fuel and/or liquid or gaseous hydrocarbon fuel. The burner has a high turndown feature and comprises a central conduit; a central bunch of parallel tubes that extend longitudinally through said central conduit; an outer conduit coaxial with said central conduit and forming an annular passage therewith; and an annular bunch of parallel tubes that extend longitudinally through said annular passage; and wherein the downstream ends of said central and annular bunches of parallel tubes are respectively retracted upstream from the burner face a distance of about 0 to 12 i. e. 3 to 10 times the minimum diameter of the central exit orifice and the minimum width of the annular exit orifice. Three ranges of flow through the burner may be obtained by using one or both bunches of tubes and their surrounding conduits.

US Patent:

43537120, Oct 12, 1982

Filed:

Jun 10, 1981

Appl. No.:

6/272416

Inventors:

Charles P. Marion - Mamaroneck NY
Albert Brent - Huntington NY
George N. Richter - San Marino CA
William B. Crouch - Chappaqua NY
Edward T. Child - Tarrytown NY
Blake Reynolds - Riverside CT

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C10J 346

US Classification:

48197R

Abstract:

A method for starting up a partial oxidation gas generator without a separate preheat burner is described. The burner used includes central and annular bunches of parallel tubes that extend through central and annular passages formed by concentric conduits.