煤经草酸酯制高价值含氧化学品的技术进展  

Technological advances in the production of high value oxygen-containing chemicals from coal via dimethyl oxalate

作　　者：张红旭 刘蝈蝈 俞佳枫[2] 孙剑[2] ZHANG Hong-xu;LIU Guo-guo;YU Jia-feng;SUN Jian(Shenyang University of Chemical Technology,Shenyang 110142,China;Dalian Institute of Chemical Physics,Dalian 116023,China)

机构地区：[1]沈阳化工大学,辽宁 沈阳 110142 [2]中国科学院大连化学物理研究所,辽宁 大连 116023

出　　处：《燃料化学学报（中英文）》2023年第11期1576-1592,共17页Journal of Fuel Chemistry and Technology

基　　金：国家自然科学基金(2022JJ12GX037)资助。

摘　　要：中国的能源结构是富煤少油,开发煤炭资源的高效清洁利用是中国重点发展方向。煤经合成气羰基化后可以合成草酸酯(DMO),进一步加氢可获得具有高附加值的含氧化学品:如乙醇酸甲酯(MG)、乙二醇(EG)、乙醇(E0)等。其中,MG可以制备可降解材料聚乙醇酸(PGA),EG可以合成聚乙二醇(PEG),EO可以合成醋酸乙酯(EAC),应用前景十分广泛。本工作围绕DMO加氢反应展开,分析了各个加氢过程中所使用催化剂的研究状况,重点归纳了催化剂的组成调控、催化作用机理以及新催化剂制备技术,分析了DMO加氢催化剂研发过程存在的问题和挑战,指出了加氢产物以及下游产品的应用瓶颈及未来发展趋势。Chinese energy structure is rich in coal and less in oil,and the development of efficient and clean utilization of coal resources is a key development direction in China.Coal can be used to synthesize dimethyl oxalate(DMO)after carbonylation by synthesis gas,and DMO can further be hydrogenated to obtain oxygen-containing chemicals with high added value,such as methyl glycolate(MG),ethylene glycol(EG),ethanol(EO),etc.Among them,MG can prepare degradable materials polyglycolic acid(PGA),EG can synthesize polyethylene glycol(PEG),and EO can synthesize ethyl acetate(EAC),which have wide application prospects.This paper focuses on DMO hydrogenation reactions,analyzes the research status of catalysts used in each hydrogenation process,focuses on the regulation of catalyst composition,catalytic mechanism and new catalyst preparation technology,analyzes the problems and challenges in the development of DMO hydrogenation catalysts,and points out the application bottlenecks and future development trends of hydrogenation products and downstream products.

关 键 词：煤 草酸二甲酯 选择性加氢 含氧化学品 铜基催化剂 

分 类 号：TQ225.24[化学工程—有机化工]