联合电解催化交换系统分离氢同位素影响因素研究  

Influencing factors of combined electrolysis catalytic exchange for hydrogen isotopes separation

作　　者：夏修龙[1] 任兴碧[1] 杨通在[1] 傅中华[1] 

机构地区：[1]中国工程物理研究院核物理与化学研究所,绵阳621900

出　　处：《核技术》2008年第11期842-845,共4页Nuclear Techniques

基　　金：中国工程物理研究院科技发展基金(2007B02005)资助

摘　　要：利用建立起来的理论模型,深入研究了联合电解催化交换(Combined Electrolysis and Catalytic Exchange,CECE)工艺中各种因素对氢同位素分离性能的影响。电解池分离因子的提高对浓缩倍数和脱氚率均有显著影响,降低电解池滞留量是提高浓缩倍数的有效手段。进料位置在1.5m处系统性能好于3m处;催化剂传质系数在3～4mol·m-3·s-1范围内,浓缩倍数和脱氚率基本呈线性增长。各种因素对HD/H2O和HT/H2O两个体系的影响具有相似的规律性,由于热力学因素的差异,相同条件下,HT/H2O体系分离性能好于HD/H2O。The influencing factors on CECE＇s separation of hydrogen isotopes were comprehensively investigated with a theoretical model. The separation factor of electrolysis cell aele has a remarkable influence on stripping efficiency and enrichment, and it is an effective way to improve enrichment by decreasing holdup of electrolysis cell. The separation performance at feeding point 1.5 m is better than that of 3 m, stripping efficiency and enrichment has a linear relationship with mass transfer coefficient in the range 3-4 mol·m-3·s-1. For all influencing factors, HD/H2O and HT/H2O have similar tendency, and HT/H2O has better separation performance than HD/H2O for the inherent thermodynamic difference of the two systems.

关 键 词：氢同位素分离 联合电解催化交换 氚 

分 类 号：TQ028.8[化学工程] P618.51[天文地球—矿床学]