基于限域效应的铜基草酸二甲酯加氢催化剂研究进展  

Research progress in confinement Cu-based catalysts for hydrogenation of dimethyl oxalate to ethylene glycol

作　　者：冯翀 俞金山 刘甜甜 李伟斌 高新华[3] 艾培培 黄伟[2] FENG Chong;YU Jin-shan;LIU Tian-tian;LI Wei-bin;GAO Xin-hua;AI Pei-pei;HUANG Wei(Chemical Research Institute of Yangquan Coal Industry(group)Co.,Ltd.,Taiyuan 030021,China;Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province,Taiyuan University of Technology,Taiyuan 030024,China;State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering,Ningxia University,Yinchuan 750021,China)

机构地区：[1]阳泉煤业(集团)有限责任公司化工研究院,山西太原030021 [2]太原理工大学煤科学与技术教育部和山西省重点实验室,山西太原030024 [3]省部共建煤炭高效利用与绿色化工国家重点实验室,宁夏大学,宁夏银川750021

出　　处：《天然气化工—C1化学与化工》2020年第3期96-101,共6页Natural Gas Chemical Industry

基　　金：山西省面上青年基金项目(201901D211047);山西省高等学校科技创新项目(2019L0185);省部共建煤炭高效利用与绿色化工国家重点实验室开放课题资助(2018-K24)。

摘　　要：合成气经草酸二甲酯(DMO)加氢制乙二醇(EG)在煤的清洁利用和石油替代中具有重要意义,而高效稳定的草酸二甲酯加氢催化剂的制备是提升该EG路线的经济性的关键因素之一。当前使用的常规铜基催化剂存在易烧结、稳定性差等问题。综述了从限域角度出发,利用不同载体结构(介孔结构、层状/片状结构、核-壳结构和核-鞘结构)改善草酸二甲酯加氢制乙二醇铜基催化剂催化性能的相关研究进展。基于限域效应制备的铜基催化剂展现出较好的催化加氢性能,四种不同载体结构均可以改善铜的分散度,阻止铜纳米颗粒的迁移和团聚,提高催化剂的催化活性和稳定性。Hydrogenation of dimethyl oxalate(DMO)from syngas to ethylene glycol(EG)is of great significance in the clean utilization of coal and oil substitution.The preparation of efficient and stable catalyst for DMO hydrogenation is one of the key factors to improve the economy of this EG route.The current common Cu-based catalysts are easy to sinter and have poor stability.The research progresses in improving the catalytic performance of the Cu-based catalysts for DMO hydrogenation to EG by using different support structures,such as mesoporous structure,lamellar structure,core-shell structure and core-sheath structure,were reviewed from a view of confinement effect.The Cu-based confinement catalysts exhibited good catalytic hydrogenation performance.All of the four kinds of confinement support structures mentioned in the review can improve the dispersion of Cu,prevent the migration and agglomeration of Cu nanoparticles,and improve the catalytic activity and stability of the catalysts.

关 键 词：草酸二甲酯 加氢 乙二醇 铜基催化剂 限域效应 

分 类 号：O643.38[理学—物理化学] TQ426[理学—化学]