David Lee Breton

US Patent:

8088188, Jan 3, 2012

Filed:

Apr 1, 2011

Appl. No.:

13/078461

Inventors:

David L. Breton - Houston TX, US
Albert C. Tsang - Sugar Land TX, US
Max W. Thompson - Bartlesville OK, US

Assignee:

ConocoPhillips Company - Houston TX

International Classification:

C10J 3/00

US Classification:

48203, 48 76, 481279, 481271, 48 61, 48197 R, 48202, 48206, 48209, 48210, 422187, 422188, 110235

Abstract:

A system and process for gasifying carbonaceous feedstock with staged slurry addition in order to prevent the formation of tar that causes deposition problems. Dry solid carbonaceous material is partially combusted, then pyrolyzed along with a first slurry stream comprising carbonaceous material in two separate reactor sections, thereby producing mixture products comprising synthesis gas. The second slurry stream comprising particulate carbonaceous material is fed to a drying unit downstream of a heat recovery zone along with the mixture product exiting the heat recovery zone The resulting final temperature of the second stage mixture products and dried particulate carbonaceous material is between 450 F. and 550 F. , a temperature range that is typically not conducive to the emission of heavy molecular-weight tar species.

US Patent:

8211191, Jul 3, 2012

Filed:

Aug 7, 2007

Appl. No.:

11/834751

Inventors:

Steven L. Douglas - Terre Haute IN, US
Ronald W. Herbanek - Sugar Land TX, US
David L. Breton - Houston TX, US
Steven E. Chichester - Terre Haute IN, US

Assignee:

Phillips 66 Company - Houston TX

International Classification:

B01J 7/00
B01J 8/00
C10J 3/68
C10J 3/00
C01B 3/36
C01B 6/24
C01B 3/02

US Classification:

48 61, 48 77, 48197 R, 48210, 422625, 423644, 4236481

Abstract:

A generally upright reactor system for gasifying a feedstock. The reactor system generally includes a main body, at least two inlet projections extending outwardly from the main body, and at least one inlet positioned on each of the inlet projections. Each of the inlets is operable to discharge the feedstock into the reaction zone.

US Patent:

8252073, Aug 28, 2012

Filed:

Dec 10, 2009

Appl. No.:

12/635244

Inventors:

Albert C. Tsang - Sugar Land TX, US
David L. Breton - Houston TX, US

Assignee:

Phillips 66 Company - Houston TX

International Classification:

B01J 8/00
C01B 3/00
C01B 3/02
C07C 1/00
C07C 1/02
C10J 3/16
C10J 3/46
C10J 3/54

US Classification:

48202, 48197 R, 48206, 252373, 422600, 4236481

Abstract:

A novel tar-free gasification process and system is disclosed that involves the partial combustion of recycled dry solids and the drying of a slurry feedstock comprising carbonaceous material in two separate reactor zones in a two stage gasifier, thereby producing mixture products comprising synthesis gas. The synthesis gas produced from the high temperature first stage reaction zone is then quenched in the second stage reaction zone of the gasifier prior to introduction of a slurry feedstock. The temperature of the final syngas exiting the second stage reaction zone of the gasifier is thereby moderated to be in the range of about 350-900 F. , which is below the temperature range at which tar is readily formed, depending upon the type of carbonaceous feedstock utilized.

US Patent:

8444724, May 21, 2013

Filed:

May 31, 2012

Appl. No.:

13/485583

Inventors:

Steven L. Douglas - Terre Haute IN, US
Ronald W. Herbanek - Sugar Land TX, US
David L. Breton - Houston TX, US
Steven E. Chichester - Terre Haute IN, US

Assignee:

Phillips 66 Company - Houston TX

International Classification:

B01J 7/00
B01J 8/00
C01B 3/36
C01B 6/24
C01B 3/02
C10J 3/00

US Classification:

48197R, 48 61, 48 77, 48210, 422625, 423644, 4236481

Abstract:

A generally upright reactor system for gasifying a feedstock. The reactor system generally includes a main body, at least two inlet projections extending outwardly from the main body, and at least one inlet positioned on each of the inlet projections. Each of the inlets is operable to discharge the feedstock into the reaction zone.

US Patent:

8460410, Jun 11, 2013

Filed:

Aug 15, 2008

Appl. No.:

12/192471

Inventors:

Albert C. Tsang - Sugar Land TX, US
Chancelor L. Williams - Katy TX, US
Max W. Thompson - Sugar Land TX, US
David L. Breton - Houston TX, US

Assignee:

Phillips 66 Company - Houston TX

International Classification:

B01J 7/00
C01B 3/36
C10J 3/16
C10J 3/00

US Classification:

48197R, 48 61, 48202, 48210, 423644

Abstract:

The present invention relates to a system and process for gasifying feedstock such as carbonaceous materials. The invention includes partial combustion of dry solids and pyrolysis of carbonaceous material slurry in two separate reactor sections and produce mixture products comprising synthesis gas. The invention employs one or more catalytic or sorbent bed for removing tar from the synthesis gas. The inventive system and process allow a gasification to be carried out under higher slurry feeding rate and lower temperature with the provision to manage the tar being produced, therefore to increase the conversion efficiency of the overall gasification.

US Patent:

20100148122, Jun 17, 2010

Filed:

Dec 17, 2009

Appl. No.:

12/640226

Inventors:

David L. BRETON - Houston TX, US
Albert C. TSANG - Sugar Land TX, US
Max W. THOMPSON - Bartlesville OK, US

Assignee:

CONOCOPHILLIPS COMPANY - Houston TX

International Classification:

C01B 3/34
B01J 10/00

US Classification:

252373, 422193

Abstract:

A system and process for gasifying carbonaceous feedstock with staged slurry addition in order to prevent the formation of tar that causes deposition problems. Dry solid carbonaceous material is partially combusted, then pyrolysed along with a first slurry stream comprising carbonaceous material in two separate reactor sections, thereby producing mixture products comprising synthesis gas. The second slurry stream comprising particulate carbonaceous material is fed to a drying unit downstream of a heat recovery zone along with the mixture product exiting the heat recovery zone. The resulting final temperature of the second stage mixture products and dried particulate carbonaceous material is between 450 F. and 550 F., a temperature range that is typically not conducive to the emission of heavy molecular-weight tar species.

US Patent:

20120294775, Nov 22, 2012

Filed:

Aug 1, 2012

Appl. No.:

13/564504

Inventors:

Albert C. Tsang - Sugar Land TX, US
David L. Breton - Houston TX, US

Assignee:

PHILLIPS 66 COMPANY - Houston TX

International Classification:

B01J 8/00
B01D 46/00

US Classification:

422187, 422207

Abstract:

A novel tar-free gasification process and system is disclosed that involves the partial combustion of recycled dry solids and the drying of a slurry feedstock comprising carbonaceous material in two separate reactor zones in a two stage gasifier, thereby producing mixture products comprising synthesis gas. The synthesis gas produced from the high temperature first stage reaction zone is then quenched in the second stage reaction zone of the gasifier prior to introduction of a slurry feedstock. The temperature of the final syngas exiting the second stage reaction zone of the gasifier is thereby moderated to be in the range of about 350-900 F., which is below the temperature range at which tar is readily formed, depending upon the type of carbonaceous feedstock utilized.

US Patent:

20130240790, Sep 19, 2013

Filed:

May 8, 2013

Appl. No.:

13/889463

Inventors:

Albert C. TSANG - Sugar Land TX, US
Chancelor L. WILLIAMS - Katy TX, US
Max W. THOMPSON - Sugar Land TX, US
David L. BRETON - Houston TX, US

Assignee:

PHILLIPS 66 COMPANY - Houston TX

International Classification:

C01B 3/02

US Classification:

252373

Abstract:

The present invention relates to a system and process for gasifying feedstock such as carbonaceous materials. The invention includes partial combustion of dry solids and pyrolysis of carbonaceous material slurry in two separate reactor sections and produce mixture products comprising synthesis gas. The invention employs one or more catalytic or sorbent bed for removing tar from the synthesis gas. The inventive system and process allow a gasification to be carried out under higher slurry feeding rate and lower temperature with the provision to manage the tar being produced, therefore to increase the conversion efficiency of the overall gasification.