Joshua B Pearson

US Patent:

8168686, May 1, 2012

Filed:

Dec 22, 2010

Appl. No.:

12/976763

Inventors:

Randy Blevins - West Des Moines IA, US
Joshua B. Pearson - Englewood CO, US
Harold A. Wright - Longmont CO, US

Assignee:

Rentech, Inc. - Los Angeles CA

International Classification:

C07C 27/00

US Classification:

518705, 518700, 518704

Abstract:

A method and system for reforming a carbonaceous feedstock comprising the steps, reforming the feedstock produce a first synthesis gas, subjecting a portion of the first synthesis gas to catalytic conversion, separating from the synthesis gas conversion product at least one byproduct, and utilizing at least a portion of the at least one byproduct during reforming of additional carbonaceous material. In certain instances, the method and system may be used to produce a liquid fuel.

US Patent:

8367741, Feb 5, 2013

Filed:

May 19, 2011

Appl. No.:

13/111832

Inventors:

Randy Blevins - West Des Moines IA, US
Joshua B. Pearson - Englewood CO, US
Harold A. Wright - Longmont CO, US

Assignee:

Rentech, Inc. - Los Angeles CA

International Classification:

C01B 3/02
C01B 3/24
C01B 3/26
C07C 27/06

US Classification:

518704, 252373

Abstract:

A method of producing synthesis gas by mixing a carbonaceous feed comprising at least one carbonaceous material with superheated steam to produce a reformer feedstock and reforming the reformer feedstock to produce a first synthesis gas comprising hydrogen and carbon monoxide by introducing the reformer feedstock into a plurality of coiled tubes within a reformer at a reformer temperature and a reformer pressure at which at least a portion of the reformer feedstock is converted to synthesis gas.

US Patent:

20110178185, Jul 21, 2011

Filed:

Dec 22, 2010

Appl. No.:

12/976739

Inventors:

Randy BLEVINS - West Des Moines IA, US
Joshua B. PEARSON - Englewood CO, US
Harold A. WRIGHT - Longmont CO, US

Assignee:

CLEARFUELS TECHNOLOGY INC. - Aiea HI

International Classification:

C07C 27/00

US Classification:

518700, 518702

Abstract:

A method and system for reforming a carbonaceous feedstock comprising the steps, reforming the feedstock produce a first synthesis gas, subjecting a portion of the first synthesis gas to catalytic conversion, separating from the synthesis gas conversion product at least one byproduct, and utilizing at least a portion of the at least one byproduct during reforming of additional carbonaceous material. In certain instances, the method and system may be used to produce a liquid fuel.

US Patent:

20120020846, Jan 26, 2012

Filed:

Sep 27, 2011

Appl. No.:

13/246451

Inventors:

Randy BLEVINS - West Des Moines IA, US
Joshua B. PEARSON - Englewood CO, US
Harold A. WRIGHT - Longmont CO, US

International Classification:

B01J 19/00

US Classification:

422187

Abstract:

A system for the production of conversion products from synthesis gas, the system including a mixing apparatus configured for mixing steam with at least one carbonaceous material to produce a reformer feedstock; a reformer configured to produce, from the reformer feedstock, a reformer product comprising synthesis gas comprising hydrogen and carbon monoxide from the reformer feedstock; a synthesis gas conversion apparatus configured to catalytically convert at least a portion of the synthesis gas in the reformer product into synthesis gas conversion product and to separate from the synthesis gas conversion product a tailgas comprising at least one gas selected from the group consisting of carbon monoxide, carbon dioxide, hydrogen and methane; and one or more recycle lines fluidly connecting the synthesis gas conversion apparatus with the mixing apparatus, the reformer, or both.

US Patent:

20120134888, May 31, 2012

Filed:

May 19, 2011

Appl. No.:

13/111836

Inventors:

Randy BLEVINS - West Des Moines IA, US
Joshua B. Pearson - Englewood CO, US
Harold A. Wright - Longmont CO, US

Assignee:

RENTECH, INC. - Los Angeles CA

International Classification:

B01J 7/00
B01F 13/06

US Classification:

422162, 366139

Abstract:

A system for the production of synthesis gas, the system including a mixing apparatus configured for combining steam with at least one carbonaceous material to produce a reformer feedstock; and a reformer comprising a cylindrical vessel containing a plurality of coiled tubes, wherein each of the plurality of coiled tubes has a vertical height in the range of from about 40 feet 12.2 m) to about 100 feet (30.5 m) and a coil length that is at least four times the vertical height; at least one burner configured to combust a fuel and provide heat to maintain the reformer at a reformer temperature; at least one outlet for reformer product comprising synthesis gas; and at least one outlet for flue gas produced via combustion of fuel in the burners. A suitable mixing apparatus is also provided.

US Patent:

20170114291, Apr 27, 2017

Filed:

Jan 4, 2017

Appl. No.:

15/398394

Inventors:

- Westminster CO, US
Joshua B. Pearson - Lakewood CO, US
Harold A. Wright - Longmont CO, US

International Classification:

C10J 3/46
C01B 3/02
C10G 2/00

Abstract:

A mixing apparatus for producing a feedstock for a reformer, the mixing apparatus including at least one mixing vessel comprising a cylindrical vessel with a conical bottom; a steam inlet configured for introducing steam into the conical bottom; a carbonaceous material inlet configured for introducing a carbonaceous feed into the cylindrical vessel; and an outlet for a reformer feedstock comprising at least 0.3 pounds of steam per pound of carbonaceous material, with the at least one mixing vessel configured for operation at a pressure of greater than about 10 psig.

US Patent:

20150291897, Oct 15, 2015

Filed:

Jun 24, 2015

Appl. No.:

14/748964

Inventors:

- Westminster CO, US
Joshua B. Pearson - Lakewood CO, US
Harold A. Wright - Longmont CO, US

International Classification:

C10J 3/48
B01J 19/24
C01B 3/34
C10G 2/00

Abstract:

A system for the production of synthesis gas, the system including a mixing apparatus configured for combining steam with at least one carbonaceous material to produce a reformer feedstock; and a reformer comprising a cylindrical vessel containing a plurality of coiled tubes, each of the plurality of coiled tubes having a vertical height in the range of from about 40 feet 12.2 m) to about 100 feet (30.5 m) and a coil length that is at least four times the vertical height; at least one burner configured to combust a fuel and provide heat to maintain the reformer at a reformer temperature; at least one outlet for reformer product comprising synthesis gas; and at least one outlet for flue gas produced via combustion of fuel in the burners. A suitable mixing apparatus is also provided.

US Patent:

20150086432, Mar 26, 2015

Filed:

Dec 2, 2014

Appl. No.:

14/557972

Inventors:

- Commerce City CO, US
Joshua B. Pearson - Lakewood CO, US
Harold A. Wright - Longmont CO, US

International Classification:

C10G 2/00
C10J 3/80
C10J 3/32

US Classification:

422162

Abstract:

A system including a mixing apparatus configured to produce a reformer feedstock and comprising one or more cylindrical vessel having a conical bottom section, an inlet for superheated steam within the conical bottom section and an inlet for at least one carbonaceous material at or near the top of the cylindrical vessel, wherein the one or more cylindrical vessel is a pressure vessel configured for operation at a pressure in the range of from about 5 psig (34.5 kPa) to about 50 psig (344.7 kPa); a reformer configured to produce, from the reformer feedstock, a reformer product comprising synthesis gas, and also producing a hot flue gas; a synthesis gas conversion apparatus configured to catalytically convert at least a portion of the synthesis gas in the reformer product into synthesis gas conversion product, and to separate, from the synthesis gas conversion product, a spent catalyst stream and a tailgas.