Zeolite membrane separation and recovery system for CO₂

摘要

To provide a CO2 membrane separation and recovery system that is excellent in CO2 permeability and CO2 separation selectivity on recovery of CO2 in a hydrogen production process and the like. The CO2 membrane separation and recovery system of the present invention comprises a dehydration treatment module (2) preliminary to a CO2 membrane separation module (1), the CO2 membrane separation module (1) comprises a hydrophilic zeolite membrane (3) that exhibits CO2 selective permeability and is formed on a porous substrate, and the hydrophilic zeolite membrane (3) is subjected to a dehydration treatment by a heat treatment at from 100 to 800° C.

主权项

1. A CO2 membrane separation and recovery system comprising a dehydration means preliminary to a CO2 membrane separation means, the CO2 membrane separation means comprising a hydrophilic zeolite membrane formed on a porous substrate, the hydrophilic zeolite membrane formed on the porous substrate being subjected to a dehydration treatment by a heat treatment at from 100 to 800° C., and the hydrophilic zeolite membrane being maintained in a dehydrated condition while in use for CO2 separation and recovery.