Creation of new catalysis for hydrogen isotope exchange by chemical reforming of porous adsorbent

为了评价核聚变固体增殖包层氚回收系统干燥器增加催化功能后的氚回收效率，探讨了亲水性催化剂替代吸附剂的应用。合成沸石作为催化剂的载体，通过将其阳离子置换为另一种阳离子来改变其性质。本文考察了阳离子交换后的丝光沸石(MOR)作为催化剂载体对同位素交换反应的影响。目前，使用贵金属作为氢同位素交换催化剂是不可避免的。铂催化剂的活性大于钯催化剂。此外，还观察到以阳离子交换MoR为载体的铂催化剂的活性比以MoR为载体的第二族离子更大的趋势。而且，催化剂的活性似乎依赖于载体的BET表面积的顺序。

In this study, to evaluate tritium recovery efficiency when catalytic function is added to the dryer of tritium recovery system for solid breeder blanket of nuclear fusion reactor, application of hydrophilic catalyst instead of adsorbent is discussed. Synthetic zeolite used as a carrier of catalyst changes its property by replacing its cation to other one. In this work, influence on isotopic exchange reaction has been investigated when mordenite type zeolite (MOR) having exchanged cation is used as a carrier of catalyst. Presently, use of noble metal cannot be avoided for hydrogen isotopic exchange catalyst. Activity of Pt-catalyst became larger than Pd-catalyst. And, the tendency that the activity of the Pt-catalyst whose carrier is cation-exchanged MOR with group 1 ion becomes larger than MOR with group 2 ion has been observed. And, it seems that the catalytic activity depend on the order of BET surface area of the carrier.