Patent ID: 7824645
Filing Date: 2010-11-02
Classification: C01B

Abstract:
1. A method for making a carbon material from coal, comprising the steps of: heating comminuted bituminous coal under pressure to a first temperature of about 300° C. to about 350° C., wherein the pressure ranges from about 400 psig to about 500 psig; holding at the first temperature for a time sufficient to achieve a substantially uniform temperature throughout the coal, wherein the steps of heating comminuted bituminous coal to the first temperature and holding at the first temperature prevent swelling of the bituminous coal; and heating to a second temperature of about 480° C. to about 550° C., and at a rate to prevent swelling of the comminuted coal and form a high density carbon material having a density ranging from about 1.0 g/cc to about 1.6 g/cc.