Intensification of the Reverse Water Gas Shift Reaction by Water-Permeable Packed-Bed Membrane Reactors,Industrial & Engineering Chemistry Research

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Intensification of the Reverse Water Gas Shift Reaction by Water-Permeable Packed-Bed Membrane Reactors
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-09-28 , DOI: 10.1021/acs.iecr.0c02213
Stephen Dzuryk ₁ , Ebrahim Rezaei ₁

Affiliation

The intensification of the reverse water gas shift (RWGS) reaction by water-permeable packed-bed membrane reactors (PBMRs) is studied to produce syngas using a CuO/ZnO/Al₂O₃ catalyst at 250 °C and 5 bar. Using experimental data from the literature, a modified kinetic model is developed for the RWGS reaction rate of the catalyst at low temperatures. The effects of gas hourly space velocity, H₂ to CO₂ ratio, H₂O/H₂ perm-selectivity, and sweep to reactor pressure and flow rate ratios are studied on the performance of the RWGS PBMRs for co- and counter-current flow configurations. The RWGS PBMRs are proven to be effective in overcoming equilibrium limitations of the RWGS reaction under different operating conditions. An optimization is performed to minimize the volume of the RWGS PBMRs to produce syngas for methanol synthesis. The optimization results show that the membranes are effective to produce the desired syngas under different operating conditions and flow configurations.

中文翻译：

透水填充床膜反应器强化水煤气逆反应

研究了在250°C和5 bar下使用CuO / ZnO / Al ₂ O ₃催化剂通过透水填充床膜反应器（PBMR）进行的反向水煤气变换（RWGS）反应的强化，以生产合成气。利用文献中的实验数据，针对催化剂在低温下的RWGS反应速率建立了改进的动力学模型。气体时空速度，H ₂与CO _2之比，H ₂ O / H _2的影响在顺流和逆流配置中，研究了RWGS PBMR的性能，电导率选择性，反应器扫掠率和流速比。事实证明，RWGS PBMR可有效克服不同操作条件下RWGS反应的平衡限制。进行了优化以最小化RWGS PBMR的体积，以生产用于甲醇合成的合成气。优化结果表明，该膜可有效地在不同的操作条件和流量配置下产生所需的合成气。

更新日期：2020-10-21

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