CO2 SEPARATION AND RECOVERY SYSTEM BY ZEOLITE MEMBRANE

摘要

PROBLEM TO BE SOLVED: To provide a COseparation and recovery system by a membrane which is excellent in COpermeability and COseparation selectivity in COrecovery in a hydrogen production process and the like.SOLUTION: A COseparation and recovery system by a membrane includes a dehydration treatment module (2) in the front stage of a COseparation membrane module (1). The COseparation membrane module (1) has a hydrophilic zeolite membrane (3) produced on a porous base material exhibiting COselective permeation. The hydrophilic zeolite membrane (3) is dehydrated by heat treatment at 100-800°C. A noble metal film selectively permeating hydrogen is disposed in the rear stage of the hydrophilic zeolite membrane (3).