| 摘要 |
PROBLEM TO BE SOLVED: To efficiently separate gas by restraining reduction in gas separation performance even in a separation membrane module on the downstream side in the gas flow direction, in a gas separator for serially connecting a plurality of separation membrane modules provided with a gas separation membrane including a hydrophilic polymer.SOLUTION: A first gas flow passage 1 having a first gas supply port 11 and a first gas discharge port 12 and a second gas flow passage 2 having a second gas discharge port 22, comprise a structure for serially connecting two or more of separation membrane modules M having a structure separated by the gas separation membrane 3 including the hydrophilic polymer, and in the separation membrane module except for the most upstream separation membrane module, the second gas flow passage also comprises a second gas supply port. The continuous two separation membrane modules Mand M, a first gas discharge port 12 of the separation membrane module Mand a first gas supply port 11 of the separation membrane module Mare connected, and a second gas discharge port 22 of the separation membrane module Mand a second gas supply port 21 of the separation membrane module Mare also connected. |
