Patent ID: 7199080
Filing Date: 2007-04-03
Classification: C01B

Abstract:
1. A method of producing activated carbon comprising the steps of: a) pyrolysing corn derivatives in the presence of an inorganic particulate heat supplying material at a temperature of between about 460° C. to about 560° C. and a weight ratio of the inorganic heat supplying material to the corn derivatives from about 12:1 to about 200:1, for a duration of about 0.03 to about 2 seconds, to produce char, and b) activating said char using steam at a temperature of between about 500° C. to about 1000° C. and a steam to carbon ratio of about 0.4:1 to about 7:1 for a duration of between about 10 to about 90 minutes, to produce activated carbon.