Acidic gas recovery system and recovery method

Abstract

The present invention provides a new recovery system suitable for recovering acidic gas. A recovery system of the present invention includes an adsorption device and a membrane separation device. The adsorption device has an adsorbent that, in a state of having adsorbed acidic gas, comes into contact with regeneration gas to desorb the acidic gas, and is configured to release desorption gas including the regeneration gas and the acidic gas. The membrane separation device has a separation membrane configured to separate the desorption gas into a first gas having a higher content of the acidic gas than the desorption gas and a second gas having a lower content of the acidic gas than the desorption gas.

Dependencies are inferred from the claim text.