氢同位素低温气相色谱分离装置的研制  

Development of Hydrogen Isotopes Separation Device by Cryosorption Gas Chromatographic

作　　者：谢波[1] 刘云怒[1] 侯建平[1] 翁葵平[1] 官锐[1] 

机构地区：[1]中国工程物理研究院核物理与化学研究所,四川绵阳621900

出　　处：《中国材料科技与设备》2009年第4期38-41,共4页Chinese Materials Science Technology & Equipment

摘　　要：低温吸附是一种有效的氢同位素分离方式，是国际热核实验堆（ITER）、聚变-裂变混合堆中包层氚提取系统和含氚重水氚回收系统的优选方案之一。课题组采用低温气相色谱技术研制了氢同位素分离装置，开展了氘-氢体系实验。实验结果表明：（1）分离装置的研制是成功的，实现了长期、连续、安全的运行；（2）分离效率高。既可以将天然丰度的氘氢样品浓缩至90％以上，也可以将氘丰度为0．08％的样品混合气分离后得到氘丰度为30％的产品，贫化部分氘丰度小于10^-5；（3）处理容量大。对氕-氘混合气的处理容量达到100m3／a的规模。The cryosorption method is useful for extracting hydrogen isotopes from a helium gas stream. In ITER and fu- sion-fission mixed reactors, this method is expected to be applied for the blanket tritium extraction system and tritium recovery system from tritiated water. A hydrogen isotopes separation device has been built by cryosorption gas chromatographic tech- nology, and A series of hydrogen-deuterium separation experiments by temperature programmed desorption were carried out. Experiment results show that this separation device is successful in long time, succession and safety runs. Moreover, this de- vice has quite high separation efficiency and big treatment capacity. The abundance ratio of D/H mixed gas reaches 30% from 0. 08%, and more than 90% from natural, the ratio is less than 10^-5 in the depleted gas. The treatment capacity reaches 100 m3/d for hydrogen-deuterium samples.

关 键 词：氢同位素 气相色谱 低温吸附 分离装置 

分 类 号：O643.14[理学—物理化学]