| 摘要 |
PURPOSE:To recover CO2 or supply recovered CO2 into a cathode of a fuel cell by providing a CO2 separator for liquefying to separate CO2 in gas by the use of coldness of liquefied natural gas (LNG), and recovering the liquefied CO2 as it is in a fused carbonate type fuel cell power generator system. CONSTITUTION:Anode gas of CO2 concentrated on an anode 4 side of a fused carbonate type fuel cell 1 is supplied into a gas-liquid separator 21 via a heat exchanger 18, an evaporator 19 and a condenser 20, where H2O is separated, to be introduced into a CO2 separator II. After H2 is separated by another gas-liquid separator 25, the anode gas is heat exchanged with a low temperature gas by a gas-heat exchanger 26, to be cooled. CO2 is cooled by a CO2 liquefying indirect heating type heat exchanger 27 by the effective use of coldness of liquefied natural gas (LNG), to be liquefied and separated into liquid. The liquefied CO2 is separated from gas by CO2 gas-liquid separating drum 28, to be introduced into a storage tank 29, and a load of a CO2 processor is leveled. |
