Skip to Content
Find More Like This
Return to Search


United States Patent Application

View the Complete Application at the US Patent & Trademark Office
A system and method for producing activated carbon comprising carbonizing a solid carbonaceous material in a carbonization zone of an activated carbon production apparatus (ACPA) to yield a carbonized product and carbonization product gases, the carbonization zone comprising carbonaceous material inlet, char outlet and carbonization gas outlet; activating the carbonized product via activation with steam in an activation zone of the ACPA to yield activated carbon and activation product gases, the activation zone comprising activated carbon outlet, activation gas outlet, and activation steam inlet; and utilizing process gas comprising at least a portion of the carbonization product gases or a combustion product thereof; at least a portion of the activation product gases or a combustion product thereof; or a combination thereof in a solid fuel boiler system that burns a solid fuel boiler feed with air to produce boiler-produced steam and flue gas, the boiler upstream of an air heater within a steam/electricity generation plant, said boiler comprising a combustion zone, a boiler-produced steam outlet and at least one flue gas outlet.
Srinivasachar, Srivats (Sturbridge, MA), Benson, Steven (Grand Forks, ND), Crocker, Charlene (Newfolden, MN), Mackenzie, Jill (Fargo, ND)
12/ 616,237
November 11, 2009
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] This invention was made with government support under Contract Numbers DE-FC26-98FT40320 and DE-FC26-98FT40321 awarded by the United States Department of Energy. The government has certain rights in this invention.