Abstract
Activated carbon pellets were prepared from cellulose microcrystals without binder. The column form of activated carbon pellets was maintained after heat treatment by use of compressed cellulose microcrystals. The bulk density of the activated carbon pellets increased with increasing compression pressure of the raw materials. On the other hand the total pore volume decreased.The bulk density of the activated carbon pellets is 2.5 times greater than that of activated carbon powder under the same sintering conditions. The amount of methane adsorption at 30°C is 82 mg/g at 0.86MPa. The total methane storage efficiency of adsorbed gas is 280 cm3 in 1 cm3 volume of the activated carbon pellet prepared in this work, being 1.7 times higher than that of the methane compressed at 13.0 MPa.
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