Highly microporous carbons and process of manufacture

Details Highly microporous carbons and process of manufacture Highly microporous carbons and process of manufacture

C - Chemistry, Metallurgy

01

B

C01B 31/08 (2006.01) B01J 20/20 (2006.01) C01B 31/12 (2006.01) F02B 43/00 (2006.01) F02F 7/00 (2006.01) F17C 11/00 (2006.01) F17C 13/00 (2006.01)

Patent

CA 2134160

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° to about 1100°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.ANG. to 20.ANG. in width and greater than 70% of total pore volume comprising pores of less than 20.ANG. in width and greater than 95% of total pore volume comprising pores of less than 50.ANG. in width and which is disclosed for storing gaseous hydrocarbon fuel in storage containers under relatively low pressure.

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