Thermodynamic Analysis of CO2 Hydrogenation to Ethanol: Solvent Effects

被引：8

作者：

Fu, Weijie ^{[1
]}

Tang, Zhenchen ^{[1
]}

Liu, Shuilian ^{[1
]}

He, Yiming ^{[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 211816, Jiangsu, Peoples R China

[2] Nanjing Tech Univ, Coll Biotechnol & Pharmaceut Engn, Nanjing 211816, Peoples R China

[3] Rhein Westfal TH Aachen, Inst Tech & Macromol Chem, Worringerweg 2, D-52074 Aachen, Germany

来源：

CHEMISTRYSELECT | 2023年 / 8卷 / 06期

基金：

中国国家自然科学基金;

关键词：

CO2; hydrogenation; ethanol synthesis; thermodynamics; solvent; ALCOHOLS; TEMPERATURE;

D O I：

10.1002/slct.202203385

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

CO2 hydrogenation to ethanol presents an important way to reduce CO2 emissions and mitigate global warming. Since the solvent plays a key role in this reaction (i. e. in a batch reactor), the thermodynamics is investigated herein using an RGibbs model in Aspen Plus to illustrate the effects of solvents with various dielectric constant and vapor pressure. Accordingly, it is found that the solvents possessing a high dielectric constant together with low vapor pressure favor ethanol synthesis thermodynamically. Furthermore, mixing a solvent having a high-dielectric-constant and high vapor pressure with another solvent having a low-dielectric-constant and low vapor pressure promotes ethanol synthesis thermodynamically.

引用

页数：6

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