Sensitivity Analysis and Multi-Objective Optimization of Oxidative Dehydrogenation of Propane in a Fixed-bed Reactor over Vanadium/Graphene for Propylene Production

被引：0

作者：

Fazlinezhad, Armin ^{[1
]}

Fattahi, Moslem ^{[2
]}

Tavakoli-Chaleshtori, Rouzbeh ^{[1
]}

Rezaveisi, Hosna ^{[3
]}

机构：

[1] Ferdowsi University of Mashhad, Chemical Engineering Department, Faculty of Engineering, Mashhad, Iran

[2] Petroleum University of Technology, Department of Chemical Engineering, Abadan Faculty of Petroleum Engineering, North Bouvardeh, Lane 15, P.O. Box 63187-14317, Abadan, Iran

[3] Razi University, Chemical Engineering Department, Faculty of Engineering, Kermanshah, Iran

来源：

Chemical Engineering and Technology | 2022年 / 45卷 / 02期

关键词：

Sensitivity analysis - Chemical reactors - Vanadium pentoxide - Catalyst deactivation - Dehydrogenation - Energy resources - Vanadium - Temperature - Molar ratio - Propane - Propylene;

D O I：

暂无

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学科分类号：

摘要：

Oxidative dehydrogenation of light alkanes is an attractive route for the production of olefins. This method does not need much energy, while common processes such as propane dehydrogenation and cracking require external energy resources and cause rapid catalyst deactivation. In this research, an isothermal one-dimensional model of a fixed-bed reactor was considered for oxidative dehydrogenation of propane over a V2O5/graphene catalyst. Operational parameter sensitivity analysis showed that high temperature (450–500 °C), high pressure (7–8 atm), a moderate molar propane to air feed ratio (about 0.7), and a low feed flow rate enhanced the propane conversion and propylene productivity. However, for the production of propylene as desirable product, low temperature, low pressure, a high molar ratio, and a high feed flow rate are preferred. Thus, to determine the exact interval of operational parameter values, a multi-objective optimization was performed for the yields of propylene and COx, revealing a maximum propylene yield of ∼40 %. For safety reasons, a feed molar ratio of propane to air of > 0.6 was preferred, which is not in the flammable region. © 2021 Wiley-VCH GmbH

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页码：309 / 318