EVAPORATED FUEL GAS ADSORBENT, EVAPORATED FUEL GAS TRAPPING APPARATUS, ACTIVE CARBON AND PROCESS FOR PRODUCING THE SAME

摘要

An evaporated fuel gas adsorbent that is capable of credibly preventing any temperature increase and temperature decrease attributed to heat generated by sorption/desorption of evaporated fuel gas to thereby enhance the sorption/desorption performance, and that enables miniaturization of apparatus and easy production; an evaporated fuel gas trapping apparatus making use of the evaporated fuel gas adsorbent; an active carbon that has mechanical strength and abrasion resistance, being rich in pores suitable for adsorption of organic solvents, especially an evaporated fuel gas, and that exhibits a high packing density; and an industrially advantageous process for producing the active carbon. There is provided an evaporated fuel gas adsorbent, comprising an adsorption material and a latent heat storage material, the latent heat storage material comprising a container consisting of a flexible film and, sealed therein, a substance capable of heat absorption and release through a phase change. Further, there is provided an evaporated fuel gas trapping apparatus making use of the evaporated fuel gas adsorbent. Still further, there is provided an active carbon of 1000 to 2500 m<sup