Synthesis of ethanol via a reaction of dimethyl ether with CO2 and H2

被引：43

作者：

Qian, Qingli ^{[1
]}

Cui, Meng ^{[1
,2
]}

Zhang, Jingjing ^{[1
,2
]}

Xiang, Junfeng ^{[1
]}

Song, Jinliang ^{[1
]}

Yang, Guanying ^{[1
]}

Han, Buxing ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, CAS Key Lab Colloid Interface & Chem Thermodynam, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

GREEN CHEMISTRY | 2018年 / 20卷 / 01期

基金：

中国国家自然科学基金;

关键词：

CARBON-DIOXIDE; METHYL ACETATE; METHANOL HYDROCARBOXYLATION; SELECTIVE HYDROGENATION; CATALYTIC-HYDROGENATION; HOMOGENEOUS CATALYSIS; COMPOSITE CATALYSTS; RUTHENIUM CATALYSTS; MILDER CONDITIONS; ACETIC-ACID;

D O I：

10.1039/c7gc02807e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ethanol is currently produced via the catalytic hydration of ethylene or fermentation of foods. The synthesis of ethanol from cheap and renewable CO2 is of great importance, but the state of the art routes encounter difficulties, especially in reaction selectivity and activity. Here we show a strategy of ethanol synthesis from CO2, dimethyl ether (DME) and H-2. The reaction can be effectively promoted with a Ru-Co bimetallic catalyst using LiI as a promoter in 1,3-dimethyl-2-imidazolidinone (DMI) solvent. The predominant product of this reaction was ethanol and the selectivity of ethanol in total products could reach 71.7 C-mol%. The selectivity of ethanol in the liquid product could reach 94.1%, which was higher than the reported routes using CO2/CO. To the best of our knowledge, this is the first work on ethanol synthesis from DME, CO2 and H-2. The reaction mechanism is discussed based on a series of control experiments.

引用

页码：206 / 213

页数：8

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