Abstract In this work, experimental and mathematical substantiation of the possibility of using the new RCTU-4 hydrophobic catalyst [0.9 mass % Pt/styrene and divinylbenzene (SDVB)] in the separation of protium-tritium isotopic mixtures by a two-temperature catalytic exchange method in a water-hydrogen system was carried out. Variation of the synthesis parameters of the support and the catalyst allowed a significant increase in the activity (≥50 s–1) and heat resistance (≈550 K) of the investigated sample compared to the previously used catalyst RCTU-3SM (kexp = 12 s−1; heat resistance = 388 K). The mathematical model presented in the paper considers three phases (liquid water, steam, and hydrogen gas) and allows optimization of dual-temperature installations in the water-hydrogen system for any isotopic mixtures.

中文翻译：

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水-氢系统两温催化同位素交换法液体放射性废物脱硝技术开发

摘要 在这项工作中，实验和数学证实了使用新型 RCTU-4 疏水催化剂 [0.9 质量 % Pt/苯乙烯和二乙烯基苯 (SDVB)] 通过双温度催化交换分离氚同位素混合物的可能性。水-氢系统中的方法。与之前使用的催化剂 RCTU-3SM (kexp = 12) 相比，载体和催化剂合成参数的变化允许研究样品的活性 (≥50 s–1) 和耐热性 (≈550 K) 显着增加s-1；耐热性 = 388 K)。论文中提出的数学模型考虑了三相（液态水、蒸汽和氢气），并允许针对任何同位素混合物优化水-氢系统中的双温装置。