Abstract OSR is the energy efficient hydrogen production route used in small scale fuel processors. The performance of the methane OSR catalyst is crucial for the overall performance of FPs. Current work proves the activity and hydrogen selectivity of OSR catalyst can exceed thermodynamic limits if the contact time is defined properly. It furtherly shows the intricate nature of OSR, comprising synchronous series and parallel reactions, can be modeled parsimoniously unveiling the effect of parameters. Results of total 27 experiments according to a Box-Behnken (BB) design revealed higher CH4 conversion values were experimentally obtained for higher temperature, higher S/C feed ratio and lower C/O2 feed ratio with certain exception(s) for S/C feed ratio; however, mostly lower CH4 conversion values were observed for higher catalyst weight, i.e. higher contact time. Contrary to the conventional practice of including up to quadratic terms in the BB models, statistical analysis shows the necessity of including 3rd order two-way interaction terms in the models. The most statically significant 3rd order interaction terms were those between W and S/C, which are required to explain the unexpected partial effects of W and S/C on response variables.

中文翻译：

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一项旨在通过 Box-Behnken 设计提高甲烷燃料处理器 OSR 性能的实验和建模研究

摘要 OSR 是用于小型燃料处理器的节能制氢路线。甲烷 OSR 催化剂的性能对 FP 的整体性能至关重要。目前的工作证明，如果接触时间定义正确，OSR 催化剂的活性和氢选择性可以超过热力学极限。它进一步显示了 OSR 的复杂性质，包括同步串联和并联反应，可以简单地建模以揭示参数的影响。根据 Box-Behnken (BB) 设计的总共 27 次实验的结果表明，在更高的温度、更高的 S/C 进料比和更低的 C/O2 进料比下，通过实验获得了更高的 CH4 转化值，但 S/C 的某些例外情况进料比；然而，对于较高的催化剂重量，观察到的 CH4 转化率值大多较低，即 接触时间更长。与在 BB 模型中最多包含二次项的传统做法相反，统计分析表明在模型中包含三阶双向交互项的必要性。最静态显着的三阶交互项是 W 和 S/C 之间的交互项，用于解释 W 和 S/C 对响应变量的意外部分影响。