Abstract This study deals with the processes of converting trace CH4 in the oxidation reaction and adsorbing H2O. The conversion of CH4 was confirmed at various reaction temperatures and flow rates by injecting O2 above the equivalence ratio of CH4 in Ar. The conversion was higher at a higher reaction temperature and a lower flow rate. Also, the impurity effects of CO2, CO, and H2O coexisting in the feed gas with CH4 were investigated. When CO2 and H2O were included in the feed gas, CH4 conversion was decreased, and CO contained in the feed gas increased CH4 conversion by the heat of oxidation reaction. When CH4 is converted to CO2 and H2O through oxidation and H2O is adsorbed on the adsorbent, complete recovery of hydrogen isotopes can be obtained. Molecular sieve was used as the adsorbent, and the water adsorption capacity of the adsorbent was confirmed by generating water through the generator. Finally, it was confirmed that converted H2O from CH4 was adsorbed on the absorbent.

中文翻译：

---

CH4氧化和H2O吸附回收氢同位素的研究

摘要 本研究涉及氧化反应中微量 CH4 转化和吸附 H2O 的过程。通过注入高于 CH4 在 Ar 中的当量比的 O2，CH4 的转化在各种反应温度和流速下得到确认。在较高的反应温度和较低的流速下转化率较高。此外，还研究了原料气中与 CH4 共存的 CO2、CO 和 H2O 的杂质影响。当原料气中含有 CO2 和 H2O 时，CH4 转化率降低，而原料气中含有的 CO 通过氧化反应热增加 CH4 转化率。当 CH4 通过氧化转化为 CO2 和 H2O 并且 H2O 被吸附在吸附剂上时，可以获得氢同位素的完全回收。以分子筛为吸附剂，通过发生器产生水来确定吸附剂的吸水能力。最后，证实从 CH4 转化的 H2O 被吸附在吸收剂上。