The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 2011
Filed:
Sep. 26, 2008
Herbert E. Andrus, Jr., Granby, CT (US);
Michael S. Mccartney, Vero Beach, FL (US);
Herbert E. Andrus, Jr., Granby, CT (US);
Michael S. McCartney, Vero Beach, FL (US);
ALSTOM Technology Ltd, Baden, CH;
Abstract
A gasifierincludes a first chemical process loophaving an exothermic oxidizer reactorand an endothermic reducer reactor. CaS is oxidized in air in the oxidizer reactorto form hot CaSOwhich is discharged to the reducer reactor. Hot CaSOand carbonaceous fuel received in the reducer reactorundergo 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 reactorand the syngas is discharged to a second chemical process loop. The second chemical process loophas a water-gas shift reactorand a calciner. The CO of the syngas reacts with gaseous HO in the shift reactorto 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 calcinerto the shift reactor