Michael R Mccartney

US Patent:

7896951, Mar 1, 2011

Filed:

Feb 16, 2009

Appl. No.:

12/371721

Inventors:

Glen D. Jukkola - Glastonbury CT, US
Michael S. McCartney - Vero Beach FL, US

Assignee:

ALSTOM Technology Ltd - Baden

International Classification:

F23J 15/02
B01D 53/12

US Classification:

95107, 95139, 423230, 422144, 422145, 422146, 422147, 16510416

Abstract:

A system for reducing carbon dioxide emissions from gasses generated in burning fossil fuel, includes a vessel, separator and reheater. The upper portion of the vessel receives downward flowing, first type solid particles capable of absorbing heat from upward flowing gasses and second type solid particles capable of capturing carbon dioxide from the gasses. The separator separates the second type solid particles with the captured carbon dioxide from the gasses discharged from the first vessel discharge, and directs the separated second type solid particles with the captured carbon dioxide to a separator discharge. The reheater directs the first type solid particles and the second type solid particles with the captured carbon dioxide in a downwardly flow to a first reheater discharge, such that heat from the first type solid particles causes the captured carbon dioxide to be released from the second type solid particles.

US Patent:

7988752, Aug 2, 2011

Filed:

Sep 26, 2008

Appl. No.:

12/239232

Inventors:

Michael S. McCartney - Vero Beach FL, US

Assignee:

ALSTOM Technology Ltd - Baden

International Classification:

C10J 3/46

US Classification:

48197R, 481983, 481985, 48201, 48210, 48212, 48215, 48 61, 48 76, 48 72, 48 77, 423428, 252373, 252376

Abstract:

A gasifier includes a first chemical process loop having an exothermic oxidizer reactor and an endothermic reducer reactor. CaS is oxidized in air in the oxidizer reactor to form hot CaSOwhich is discharged to the reducer reactor. Hot CaSOand carbonaceous fuel received in the reducer reactor undergo an endothermic reaction utilizing the heat content of the CaSO, the carbonaceous fuel stripping the oxygen from the CaSOto form CaS and a CO rich syngas. The CaS is discharged to the oxidizer reactor and the syngas is discharged to a second chemical process loop. The second chemical process loop has a water-gas shift reactor and a calciner. The CO of the syngas reacts with gaseous HO in the shift reactor to produce Hand CO. The COis captured by CaO to form hot CaCOin an exothermic reaction. The hot CaCOis discharged to the calciner , the heat content of the CaCObeing used to strip the COfrom the CaO in an endothermic reaction in the calciner, with the CaO being discharged from the calciner to the shift reactor.

US Patent:

8480768, Jul 9, 2013

Filed:

Jun 13, 2011

Appl. No.:

13/159002

Inventors:

Michael S. McCartney - Vero Beach FL, US

Assignee:

ALSTOM Technology Ltd - Baden

International Classification:

B01J 7/00

US Classification:

48 61, 481983, 481985, 48201, 48210, 48212, 48215, 48197 R, 48 76, 48 72, 48 77, 423428, 252373, 252376

Abstract:

A gasifier includes a first chemical process loop having an exothermic oxidizer reactor and an endothermic reducer reactor. CaS is oxidized in air in the oxidizer reactor to form hot CaSOwhich is discharged to the reducer reactor. Hot CaSOand carbonaceous fuel received in the reducer reactor undergo an endothermic reaction utilizing the heat content of the CaSO, the carbonaceous fuel stripping the oxygen from the CaSOto form CaS and a CO rich syngas. The CaS is discharged to the oxidizer reactor and the syngas is discharged to a second chemical process loop. The second chemical process loop has a water-gas shift reactor and a calciner. The CO of the syngas reacts with gaseous HO in the shift reactor to produce Hand CO. The COis captured by CaO to form hot CaCOin an exothermic reaction. The hot CaCOis discharged to the calciner , the heat content of the CaCObeing used to strip the COfrom the CaO in an endothermic reaction in the calciner, with the CaO being discharged from the calciner to the shift reactor.