Thermodynamic analysis of ethanol synthesis by CO2 hydrogenation using Aspen Plus: effects of tail gas recycling and CO co-feeding

被引：5

作者：

He, Yiming ^{[1
]}

Fu, Weijie ^{[1
]}

Tang, Zhenchen ^{[1
]}

Liu, Shuilian ^{[1
]}

Chen, Jian ^{[1
]}

Zhong, Qitong ^{[1
]}

Tan, Xing ^{[1
]}

Sun, Ruiyan ^{[2
]}

Mebrahtu, Chalachew ^{[3
]}

Zeng, Feng ^{[1
]}

机构：

[1] Nanjing Tech Univ, Coll Chem Engn, State Key Lab Mat Oriented Chem Engn, Nanjing, Jiangsu, Peoples R China

[2] Nanjing Tech Univ, Coll Biotechnol & Pharmaceut Engn, Nanjing, Jiangsu, Peoples R China

[3] Rhein Westfal TH Aachen, Inst Tech & Macromol Chem, Aachen, Germany

来源：

CHEMICAL ENGINEERING COMMUNICATIONS | 2024年 / 211卷 / 02期

基金：

中国国家自然科学基金;

关键词：

CO co-feeding; CO2; hydrogenation; ethanol synthesis; simulation; tail gas recycling; HIGHER ALCOHOLS SYNTHESIS; CARBON-DIOXIDE; METHANOL; CATALYSTS;

D O I：

10.1080/00986445.2023.2240709

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Synthesis of ethanol by CO2 hydrogenation presents an efficient way to convert CO2 into value-added fuels and chemicals. For practical applications, recycling unreacted tail gas as well as CO co-feeding plays a key role to enhance CO2 conversion to ethanol. Thus, it is of great significance to study the effects of recycling unreacted tail gas and CO co-feeding on the chemical equilibrium. Herein, we perform a thermodynamic study to analyze the hydrogenation of CO2 to ethanol using Aspen Plus. The effects of recycling tail gas and CO co-feeding on CO2 conversion and ethanol selectivity at different temperatures and pressures are investigated. Both the optimal recycle ratio and CO/(CO + CO2) ratio in the feed are found to enhance ethanol synthesis from CO2 hydrogenation.

引用

页码：300 / 310

页数：11

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