The partial oxidation of methane to syngas in a palladium membrane reactor: simulation and experimental studies
The partial oxidation of methane to syngas in a palladium membrane reactor: simulation and experimental studies
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DOI：
10.1016/s0920-5861(01)00266-8
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发表时间：
2001-05
期刊：
影响因子：
5.3
通讯作者：
A. Basile;L. Paturzo;F. Laganà
中科院分区：
文献类型：
--
作者：
A. Basile;L. Paturzo;F. Laganà
在无机膜反应器的众多潜在应用中，甲烷的部分氧化（POM）可以提供相对于甲烷的蒸汽重整的用于生产合成气的替代路线。无机膜反应器是一种联合收割机催化反应和膜分离于一体的多功能反应器。特别是，致密钯膜的特征在于以下事实：（1）只有氢可以渗透通过它们;（2）遵循Arkalius和Sievert定律。在这项调查中，一个致密的钯膜反应器（PMR）的概念进行了分析，参考实验数据和模拟研究。以甲烷部分氧化制合成气反应为模型反应进行了研究。提出了一个包括膜、气相和催化剂活性的膜反应器模型。甲烷转化率方面的实验结果，通过使用针孔自由钯膜可渗透的氢只进行了比较与模型预测。考察了不同时间因子和吹扫气流量下反应温度对甲烷转化率的影响。特别地，在动力学模型中考虑了温度分布对甲烷转化率的影响。
Among numerous potential applications of inorganic membrane reactors, the partial oxidation of methane (POM) may offer an alternative route, with respect to steam reforming of methane, for producing synthesis gas. Inorganic membrane reactors are considered to be multifunctional reactors because they are able to combine catalytic reactions with membrane separation properties. In particular, dense palladium membranes are characterised by the fact that: (1) only hydrogen might permeate through them; (2) both Arrhenius and Sievert laws are followed. In this investigation, a dense palladium membrane reactor (PMR) concept is analysed referring both to experimental data and to simulation study. The partial oxidation of methane (POM) reaction to produce synthesis gas was chosen as a model reaction to be investigated. A membrane reactor model that includes the membrane, the gas phase and the catalyst activity is proposed. The experimental results in terms of methane conversion obtained by using a pin-hole free palladium membrane permeable to hydrogen only were compared with model predictions. The effect of reaction temperature on methane conversion at different time factors and sweep gas flow rates was considered. In particular, the effects of temperature profiles on the methane conversion are taken into account in the kinetic model.