METHOD FOR CONDENSING CARBON DIOXIDE

摘要

The present invention provides a method for condensing carbon dioxide using a polyamide film suitable for separating and recovering highly concentrated carbon dioxide from a mixed gas such as a natural gas or a combustion gas. This method for condensing carbon dioxide is characterized by passing a mixed gas having a carbon dioxide partial pressure of 0.3 atm or higher through a polyamide film (1) which comprises a polyamide having a specific repeating unit and which has an oxygen permeability of 50 (cc/m2/24 hr/atm/0.1 mm) or lower.