低温吸附法净化氢同位素气体  

THE PURIFICATION OF HYDROGEN ISOTOPE GAS BY CRYOGENIC ABSORPTION METHOD

作　　者：周俊波[1] 王奎升[1] 高丽萍[1,2] 王少波[3] 申会堂[3] 

机构地区：[1]北京化工大学机电学院 [2]河北工程学院邯郸056002 [3]中国船舶重工集团公司718所

出　　处：《低温工程》2004年第2期50-52,57,共4页Cryogenics

摘　　要：为了回收利用核聚变反应堆排出的托卡马克废气 ,将含有氧、氮杂质的氢同位素混合气 ,通过催化剂脱氧 ,低温 (77 4K)吸附的方法 ,进行了净化处理。实验结果表明 ,净化后的氢同位素产品气体氧体积分数小于 0 1× 10 - 6 ,氮体积分数小于 1× 10 - 6 。通过理论计算发现 ,采用此方法净化氢同位素时 ,氢同位素的损耗量只有氮杂质含量的 10 %～ 30 %。因此 ,采用本方法回收处理核聚变反应堆中的托卡马克废气完全能够满足实际需要。In order to recycle Tokamak exhaust gases expelled from nuclear fusion reactors, the hydrogen isotope mixture gas which contain the impurities of oxygen and nitrogen has been purified by the means of the method of catalytic deoxygenization and cryogenic( i.e. liquid nitrogen temperature 77.4 K) absorption. The experimental result shows that the product gases of hydrogen isotope to be purified contain oxygen content below 0.1×10 -6 and nitrogen content within 1×10 -6 . Through theory calculation, it has been discovered that the waste amount of hydrogen isotope is only about 10%～30% of nitrogen impurity content, when hydrogen isotope gas is purified by this way. Therefore, this way is able to meet the practice requirements, such as used for recycling Tokamak exhaust gases expelled from nuclear fusion reactors.

关 键 词：低温吸附 氮杂质 氢同位素 脱氧 分离 核聚变反应堆 废气处理系统 

分 类 号：X771[环境科学与工程—环境工程]