Patent ID: 7544222
Filing Date: 2009-06-09
Classification: B01D,B01J,C01B,C04B,Y10T

Abstract:
1. An activated carbon foam comprising a surface area ranging from about 10 m 2 /g to about 25 m 2 /g manufactured by the process comprising: heating swellable particulate coal to a temperature between about 300° C. and about 700° C. under a non-oxidizing atmosphere at a pressure ranging from about 25 psi to about 500 psi and soaking at said temperature for from about 10 minutes to about 12 hours to produce a carbon foam; and activating said carbon foam by flowing an activation agent through said carbon foam for a period ranging from about 1 hour to about 12 hours at a temperature ranging from about 600° C. to about 1200° C., thus producing an activated carbon foam.