合成气经二甲醚羰基化及乙酸甲酯加氢制无水乙醇的研究进展

doi:10.16085/j.issn.1000-6613.2019-0161

摘要/Abstract

摘要：

合成气经二甲醚羰基化及乙酸甲酯加氢路线制无水乙醇技术因具有诸多优点而备受市场关注。本文综述了该工艺的核心反应机理和最近研究进展。主要探讨了丝光沸石8元环与12元环对羰基化反应的作用。阐明了如何通过调变丝光沸石8元环与12元环的活性位来提高羰基化催化剂的活性与稳定性。评述了铜纳米粒子的粒径、分散度以及Cu⁺与Cu⁰的分布等特点对铜基催化剂加氢催化活性的影响。提高乙醇选择性与催化剂稳定性是该研究的重点与难点。指出羰基化催化剂的优化重点是调变丝光沸石的孔道结构，加氢催化剂的发展方向是构建高分散度的铜纳米粒子，并在反应过程中保持稳定。

关键词: 合成气, 醇, 催化剂, 反应, 沸石

Abstract:

The synthesis of anhydrous ethanol from syngas via carbonylation of dimethyl ether and hydrogenation of methyl acetate has attracted much market attention due to its many advantages. The key reaction mechanism and recent research progress of this process were reviewed in this paper. The effects of 8-membered and 12-membered rings of mordenite on carbonylation were discussed. How to improve the activity and stability of carbonylation catalysts by modifying the active sites of 8-membered and 12-membered rings of mordenite was described. The effects of particle size, dispersion and distribution of Cu⁺ and Cu⁰ on the catalytic activity of copper-based catalysts for hydrogenation were reviewed. Improvement of ethanol selectivity and catalyst stability is the focus and difficult point of this study. The optimization of carbonylation catalysts focuses on adjusting the pore structure of mordenite, and the development direction of hydrogenation catalysts is to construct highly dispersed copper nanoparticles and maintain stability in the reaction process is pointed.

Key words: syngas, alcohol, catalyst, reaction, zeolite

中图分类号:

王辉,吴志连,邰志军,裴仁彦,任晓光. 合成气经二甲醚羰基化及乙酸甲酯加氢制无水乙醇的研究进展[J]. 化工进展, 2019, 38(10): 4497-4503.

Hui WANG,Zhilian WU,Zhijun TAI,Renyan PEI,Xiaoguang REN. Advances in synthesis of anhydrous ethanol from syngas via carbonylation of dimethyl ether and hydrogenation of methyl acetate[J]. Chemical Industry and Engineering Progress, 2019, 38(10): 4497-4503.

图/表 2

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