CARBON DIOXIDE DEAERATPR FOR FUEL CELL

PURPOSE:To reduce a carbon dioxide quantity in recovery water by partitioning the inside of a moisture absorbing tower into two chambers by means to prevent bubbling air from being mixed with exhaust gas, and arranging an exhaust gas introducing port and a heat exchanger in one chamber and a bubbling air delivering port in the other chamber. CONSTITUTION:The inside of a moisture recovery tower 20 is partitioned into an upper chamber 22 and a lower chamber 23 by a water sealing film 21 being a mixing preventive means, and an exhaust gas pipe 24 is opened in the side bottom part of the upper chamber 22, and above it, a water cooling type heat exchanger 25 is arranged protrusively inside, and an air exhaust cylinder 26 is arranged protrusively in one corner of an upper wall. A feed air pipe 28 of a blower 27 is arranged protrusively in the lower part of the lower chamber 23, and a water discharge port 29 is arranged in one corner of the bottom wall, and an air exhaust pipe 30 is erected on the top wall, and this upper end part 31 is opened inside the air exhaust cylinder 26. In this way, combustion exhaust gas E and air electrode offgas F are sent to the upper chamber 22, and water condensed by the heat exchanger 25 is stored in the bottom part of the lower chamber 23 as recovery water G. Next, this water G is bubbled by air bubbles (b) from the blower 27, and carbon dioxide is deaerated, and is discharged from the air exhaust cylinder 26.