Patent ID: 6521026
Filing Date: 2003-02-18
Classification: B01D,C01B,F28D,Y02C,Y02P

Abstract:
A carbon dioxide gas separating system comprising:a regenerative carbon dioxide gas separator including: a rotatable rotor; an absorbing/separating agent housed in said rotor, for absorbing carbon dioxide gas at a temperature lower than a predetermined temperature, and for releasing the absorbed carbon dioxide gas at a temperature higher than the predetermined temperature; a first gas flow passage for passing a first gas through said rotor in a direction substantially parallel to a central axis of rotation of said rotor; a second gas flow passage for passing a second gas through said rotor in a direction substantially parallel to the central axis of rotation of said rotor; and a sealing mechanism for preventing the mixing of said first gas and said second gas, wherein carbon dioxide gas contained in said first gas is absorbed by said absorbing/separating agent and the carbon dioxide gas absorbed by said absorbing/separating agent is released into said second gas by rotating said rotor while the temperature of said first gas flow passage is set to be lower than said predetermined temperature and the temperature of said second gas flow passage is set to be higher than said predetermined temperature; heating means for heating said second gas flow passage of said regenerative carbon dioxide gas separator to a temperature higher than said predetermined temperature; heat recovering means for cooling a gas flowing out of said first gas flow passage; and heat exchanging means for transferring heat energy from a gas containing carbon dioxide gas flowing out of said second gas flow passage to said first gas supplied to said first gas flow passage.