Abstract The membrane reactor about methane reforming of CO2 (so called dry reforming) is studied by computational fluid dynamics approach. The effect of changing the number of membranes is modeled and investigated. The number of membranes for the simulation is chosen with two, three, four, five, six, eight and nine membranes. The separation distance between each center of the membrane and the center of the reactor is fixed. Cross sections of temperature distributions and the profiles of both hydrogen and methane concentrations within a membrane reactor are shown. In addition, we obtain conversion of methane as well as that of the carbon dioxide for corresponding geometries. Even though the conversions of both methane and carbon dioxide generally decreases (likewise the production of hydrogen does), the permeated hydrogen into the membrane increases as the number of membrane increases. It turns out that the reactor equipped with more number of membranes is preferable for hydrogen selection. This information may give us a critical guideline of reactor design before constructing scaled up reactor.

中文翻译：

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改变甲烷二氧化碳重整膜数量的影响：CFD 研究

摘要 采用计算流体动力学方法研究了CO2甲烷重整（即干法重整）的膜反应器。对改变膜数量的影响进行建模和研究。用于模拟的膜数量选择为 2、3、4、5、6、8 和 9 个膜。每个膜中心与反应器中心之间的分离距离是固定的。显示了温度分布的横截面以及膜反应器内氢气和甲烷浓度的分布图。此外，我们还获得了相应几何形状的甲烷和二氧化碳的转化率。尽管甲烷和二氧化碳的转化率通常会降低（氢气的产生也是如此），渗透到膜中的氢随着膜数量的增加而增加。事实证明，配备更多膜的反应器更适合氢气选择。在建造放大反应堆之前，这些信息可以为我们提供反应堆设计的关键指南。