Abstract
This chapter describes pressure swing adsorption (PSA) of ethyl acetate on silica MCM-41. Fundamental studies on the removal or recovery of ethyl acetate vapor from industrial waste effluent gas by PSA on silica MCM-41 are made. From the effects of pretreatment temperatures and trimethylsilylation, it is found that ethyl acetate molecules are irreversibly adsorbed on surface hydroxyl (OH) groups on silica MCM-41 through hydrogen bonding at a low adsorption or desorption temperature of 303 K. With increasing adsorption temperature from 303 to 373 K, the amount of irreversible adsorption decreases to almost nil. Therefore, a combination of PSA and temperature swing adsorption operation is desirable for the removal or recovery of ethyl acetate vapor. The reversible adsorption capacity becomes 250 mg g -1 by the combination.
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