Highly microporous carbons and process of manufacture.

摘要

Highly microporous activated carbons are prepared by further chemical activation of activated carbon comprising activation of an active carbon precursor material with an alkali solution, pre-drying the blend to below about 25% moisture content, heat treating this blend at from about 650 DEG to about 1100 DEG C, and acid washing and drying the microporous activated carbon products, which are characterized by greater than 50% of total pore volume comprising pores of from above 8 ANGSTROM to 20 ANGSTROM in width and greater than 70% of total pore volume comprising pores of less than 20 ANGSTROM in width and greater than 95% of total pore volume comprising pores of less than 50 ANGSTROM in width and which is disclosed for storing gaseous hydrocarbon fuel in storage containers under relatively low pressure.