Robert V Giglio

US Patent:

20060130401, Jun 22, 2006

Filed:

Dec 16, 2004

Appl. No.:

11/012289

Inventors:

Robert Giglio - Annandale NJ, US
Zhen Fan - Parsippany NJ, US
Robert Froehlich - New Providence NJ, US
Archibald Robertson - Whitehouse Station NJ, US
Kumar Sellakumar - Bridgewater NJ, US
Song Wu - Livingston NJ, US

Assignee:

FOSTER WHEELER ENERGY CORPORATION - Clinton NJ

International Classification:

C10J 3/46

US Classification:

04819700R

Abstract:

A method of co-producing activated carbon in a circulating, fluidized bed gasification process includes gasifying carbonaceous fuel in a fluidized bed to form syngas and char, activating the char to form particles of activated carbon, discharging syngas and particulate solids entrained with the syngas from the reactor, separating entrained solids from the syngas with a particle separator and returning at least a portion of the separated solids to the reaction chamber, but allowing a solids product, including activated carbon and having an average size smaller than a predetermined size, to exit the particle separator with the syngas. The solids product is separated from the syngas in a dust separator to form cleaned syngas, and both the cleaned syngas and the solids product are discharged from the gasifier.