Abstract Steady state performance of OSR and serial OSR-PROX reactors were investigated. OSR of methane/propane and PROX were conducted over novel Pt-Ni/δ-Al 2 O 3 and Pt-Sn/AC catalysts, respectively. OSR (623–773 K) and PROX (383–388 K) reactors' temperature combination, S/C ratio (2.25–6) in the OSR feed, and W/F O 2 ratio (1.5–12.2 mg-cat·min/μmol) in the PROX feed, which was adjusted through oxygen addition to OSR outlet at rates on the basis of CO molar flow in the OSR outlet , were used as the experimental parameters. Simultaneous use of high temperature and high S/C ratio led to increased H 2 and H 2 /CO ratios, and decreased CH 4 and CO 2 concentrations in OSR product. In serial tests, the highest achieved H 2 concentration was 66% (dry based inert free) at S/C ratio of 6 at 723 K, while the lowest CO concentration was 700 ppm at OSR-PROX temperature combination of 723 & 383 K. Maximum achieved methane and propane conversions at 723 K were 70% and 100%, respectively. Oxygen fed to OSR was totally consumed in all tests. OSR temperature of 723 K, S/C ratio of 5, PROX temperature of 383 K and W/F O 2 ratio of 1.53 in the PROX feed were the optimal parameters targeting high H 2 /CO product ratio. The experimental product distribution trends were consistent with the results of the thermodynamic equilibrium calculations.

中文翻译：

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催化制氢研究：串联OSR-PROX系统的热力学及实验分析

摘要 研究了OSR和串联OSR-PROX反应堆的稳态性能。甲烷/丙烷和 PROX 的 OSR 分别在新型 Pt-Ni/δ-Al 2 O 3 和 Pt-Sn/AC 催化剂上进行。OSR (623–773 K) 和 PROX (383–388 K) 反应器的温度组合、OSR 进料中的 S/C 比 (2.25–6) 和 W/FO 2 比 (1.5–12.2 mg-cat·min/将 PROX 进料中的 μmol) 作为实验参数，通过以 OSR 出口中 CO 摩尔流量的速率向 OSR 出口添加氧气来调节该进料。同时使用高温和高 S/C 比导致 H 2 和 H 2 /CO 比增加，并降低 OSR 产品中的 CH 4 和 CO 2 浓度。在系列测试中，在 723 K 下 S/C 比为 6 时，最高达到的 H 2 浓度为 66%（无干基惰性），而在 723 K 和 383 K 的 OSR-PROX 温度组合下，最低的 CO 浓度为 700 ppm。在 723 K 下实现的最大甲烷和丙烷转化率分别为 70% 和 100%。在所有测试中，供给 OSR 的氧气完全消耗。723 K 的 OSR 温度、5 的 S/C 比、383 K 的 PROX 温度和 PROX 进料中的 W/FO 2 比为 1.53 是针对高 H 2 /CO 产物比的最佳参数。实验产物分布趋势与热力学平衡计算的结果一致。PROX 进料中的 53 是针对高 H 2 /CO 产品比的最佳参数。实验产物分布趋势与热力学平衡计算的结果一致。PROX 进料中的 53 是针对高 H 2 /CO 产品比的最佳参数。实验产物分布趋势与热力学平衡计算的结果一致。