Patent ID: 6258300
Filing Date: 2001-07-10
Classification: B01D,Y02C,Y10S,Y10T

Abstract:
A process for preparing an activated carbon fiber composite material comprising the steps of:selecting a carbon fiber fabricated from at least one precursor selected from the group consisting of isotropic pitch, polyacrylonitrile, rayon, heavy oils, oil shale residue, and refinery residues;reducing said carbon fiber to a selected length by chopping or milling thereby providing a multiplicity of carbon fibers;mixing said multiplicity of carbon fibers with a carbonizable organic powder and water thereby producing a slurry;vacuum molding said slurry thereby producing a green monolith;drying said green monolith;curing said green monolith thereby producing a cured monolith;carbonizing said cured monolith thereby producing a carbon fiber composite defining an open, permeable structure; andactivating said carbon fiber composite whereby said carbon fibers are made porous.