Optimal Design Issues of a Methanol Synthesis Reactor from CO2 Hydrogenation,Chemical Engineering & Technology

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Optimal Design Issues of a Methanol Synthesis Reactor from CO2 Hydrogenation
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-08-02 , DOI: 10.1002/ceat.201900626
Ahmad Rafiee ₁

Affiliation

Methanol production through CO₂ hydrogenation was investigated in a series of fixed‐bed reactors. Staging of the reactor into several smaller reactors is considered to enhance methanol production, in addition to maximizing a measure of annual profit. The degrees of freedom of the reactor system are the number of stages, the cooling medium temperature, the heat transfer area, and the volume of the stages. Depending on the objective function (OF) criteria, staging of the reactor increases the OF values to various extents. When the objective is to maximize the methanol production, the OF of a three‐stage reactor system with an inlet H₂/CO₂ ratio of 2 is 2.61 % higher than in the single‐stage configuration. Staging of the reactor also increases the synthesis gas conversion to methanol. However, if maximizing the annual profit is the objective, the profitability of the two‐stage configuration is 2.05 % greater than in the case with one reactor, due to the higher methanol production of the staged reaction system.

中文翻译：

CO2加氢合成甲醇反应器的优化设计问题

在一系列固定床反应器中研究了通过CO ₂加氢生产甲醇的方法。除了使年度利润最大化外，还考虑将反应器升级为几个较小的反应器以提高甲醇产量。反应器系统的自由度是级数，冷却介质温度，传热面积和级数。根据目标函数（OF）的标准，反应器的分级会在不同程度上增加OF值。当目标是最大程度地提高甲醇生产量时，可以使用进口H ₂ / CO ₂的三级反应器系统的OF比率2比单级配置高2.61％。反应器的分级也增加了合成气向甲醇的转化。但是，如果以实现年利润最大化为目标，则由于分步反应系统的甲醇产量更高，因此两步配置的利润率比一个反应器高2.05％。

更新日期：2020-09-21

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