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

为了评价在核聚变反应堆固体增殖包层氚回收系统的干燥器中加入催化功能后的氚回收效率，探讨了用亲水性催化剂代替吸附剂的应用。合成沸石作为催化剂的载体，通过将其阳离子替换为其他阳离子来改变催化剂的性能。本文研究了用交换阳离子的丝光沸石（MOR）作为催化剂载体对同位素交换反应的影响。目前，贵金属作为氢同位素交换催化剂的使用是不可避免的。pt -催化剂的活性大于pd -催化剂。并且，观察到以1族阳离子交换MOR为载体的pt -催化剂活性大于2族阳离子交换MOR的趋势。并且，催化活性似乎取决于载体的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.