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Synthesis of ethanol via a reaction of dimethyl ether with CO2 and H2
Green Chemistry ( IF 9.3 ) Pub Date : 2017-10-24 00:00:00 , DOI: 10.1039/c7gc02807e
Qingli Qian 1, 2, 3, 4, 5 , Meng Cui 1, 2, 3, 4, 5 , Jingjing Zhang 1, 2, 3, 4, 5 , Junfeng Xiang 1, 2, 3, 4, 5 , Jinliang Song 1, 2, 3, 4, 5 , Guanying Yang 1, 2, 3, 4, 5 , Buxing Han 1, 2, 3, 4, 5
Affiliation  

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 H2. 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 H2. The reaction mechanism is discussed based on a series of control experiments.

中文翻译:

通过二甲醚与CO 2和H 2反应合成乙醇

目前,乙醇是通过乙烯的催化水合或食品发酵生产的。由廉价且可再生的CO 2合成乙醇非常重要,但是现有技术路线遇到困难,特别是在反应选择性和活性方面。在这里,我们展示了由CO 2,二甲醚(DME)和H 2合成乙醇的策略。使用LiI作为促进剂的Ru-Co双金属催化剂可以在1,3-二甲基-2-咪唑啉酮(DMI)溶剂中有效地促进反应。该反应的主要产物是乙醇,并且乙醇在总产物中的选择性可以达到71.7C-mol%。液体产品中乙醇的选择性可以达到94.1%,高于使用CO 2 / CO报道的路线。据我们所知,这是由DME,CO 2和H 2合成乙醇的第一项工作。基于一系列的控制实验,讨论了反应机理。
更新日期:2018-01-02
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