Carbon dioxide gas separation/concentration device capable of feeding conditioned air

Abstract

A system separates and concentrates carbon dioxide not only from exhaust gas, but also from air conditioned air. A carbon dioxide gas sorption rotor is rotated in a foam module board laminated unit structure casing, which is divided and sealed into at least a processing gas zone, a recovery zone, and a desorption zone in the order of the rotor rotation direction. Carbon dioxide gas is sorbed in the processing gas zone while evaporating and cooling the honeycomb in a wet state. The carbon dioxide gas is sorbed by condensation heat by introducing saturated vapor into the sorption zone. The carbon dioxide gas is then purged through the recovery zone at the front of the rotation direction. This prevents thermal and oxidative degradation of the sorbent, and at the same time, carbon dioxide gas can be efficiently separated, concentrated, and recovered.