| 摘要 |
<P>PROBLEM TO BE SOLVED: To remove CO<SB>2</SB>from exhaust gas by effectively using cold of LNG, and to avoid an occlusion trouble in an apparatus. <P>SOLUTION: An inner heat-transfer pipe 28 and an outer heat-transfer pipe 30 are located inside an outer body 22, and an NG passage 32 is formed between the inner heat-transfer pipe 28 and the outer heat-transfer pipe 30. The outer body 22 is separated into upper and lower parts by a partition plate 34, and lower end of the outer heat-transfer pipe 30 is fixed onto the partition plate 34. The CO<SB>2</SB>-containing exhaust gas passes through an introduction pipe 24a at the upper part of the outer body 22 and through the inner heat-transfer pipe 28 and is led out through a lead-out pipe 26a at the lower part of the outer body 22. Meanwhile, LNG which is a low-temperature liquefied gas is led into a first chamber 36 outside the outer heat-transfer pipe 30 through an introduction pipe 40 at the middle of the outer body 22, climbs through the first chamber 36, enters and descends through an NG passage 32, enters a second chamber 38 at the lower part of the outer body 22 and is led outside through a lead-out pipe 42. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
