Thermodynamic analysis on the CO2 conversion processes of methane dry reforming for hydrogen production and CO2 hydrogenation to dimethyl ether 机翻标题: 暂无翻译,请尝试点击翻译按钮。

会议集名/来源
IOP Conference Series: Earth and Environmental Science
出版年
2000
会议日期
2017-12-22 - 2017-12-25
作者
He, Xinyi 1;Liu, Liping 2 1 School of Chemical Engineering and Technology, Tianjin University, 300072, China tjuhexinyi@163.com 2 School of Chemical Engineering and Energy, Zhengzhou University, 450001, China zhengllp@163.com
摘要
Based on the principle of Gibbs free energy minimization, the thermodynamic analysis on the CO2 conversion processes of dry reforming of methane for H2 and CO2 hydrogenation to dimethyl ether was carried out. The composition of the reaction system was determined on the basis of reaction mechanism. The effects of reaction temperature, pressure and raw material composition on the equilibrium conversion and the selectivity of products were analyzed. The results show that high temperature, low pressure, CO2/CH4 molar ratio of 1.0-1.5 and appropriate amount of oxygen are beneficial to the dry reforming of methane. For CO2 hydrogenation to dimethyl ether, low temperature, high pressure, the appropriate H2/CO2 and the proper CO addition in feed are favorable. The calculated results are compared with the relevant studies, indicating that industrial catalytic technology needs further improvement.
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关键词
Temperature (major);Carbon dioxide;Ethers;Free energy;Fuels;Gibbs free energy;Hydrogen production;Hydrogenation;Methane;Thermoanalysis;Thermodynamic properties
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