Patent ID: 8252716
Filing Date: 2012-08-28
Classification: C01B,H01G,Y02E

Abstract:
1. A method of making porous activated carbon comprising, in a first heating cycle, heating a mixture of a carbon precursor selected from the group consisting of a synthetic polymer thermosetting resin and a synthetic polymer thermoplastic resin, and a chemical activating agent in a first furnace at a temperature in a range of about 350° C. to 600° C. to form an intermediate carbon product, where a ratio of the carbon precursor to the chemical activating agent on a basis of dry material weight is from about 1:10 to 10:1; in a second heating cycle, heating the intermediate carbon product in a second furnace at a temperature in a range of about 650° C. to 1000° C. to form an activated porous carbon, wherein the second furnace is a corrosion-resistant furnace that is smaller than the first furnace.