燃料化学学报2011，Vol.39Issue(9)：702-705,4.
Cu/SiO2催化剂在草酸二乙酯加氢过程中失活研究
Deactivation behavior of SiO2 supported copper catalyst in hydrogenation of diethyl oxalate
摘要
Abstract
High yield of ethylene glycol (EG) can be obtainedby using the catalyst with 20％ Cu loading,but the short life of the catalyst blocks its industrial application.This work focuses on the cause of the deactivation behavior.SiO2 supported copper catalyst for gasphase hydrogenation of diethyl oxalate (DEO) was prepared using the ammoniaevaporation method.The catalyst was characterized by the means of X-ray diffraction ( XRD),temperature-programmed reduction (TPR) and highresolution transmission electron microscopy (HRTEM).It was found that copper particles were highly dispersed on the surface of fresh catalyst in small size,and the aggregation of them was the main reason for deactivation.In addition,the results indicated that Cu0 is the main active site for the hydrogenation.关键词
失活/Cu/SiO2催化剂/加氢/草酸二乙酯Key words
deactivation/Cu/SiO2 catalyst/hydrogenation/diethyl oxalate分类
化学化工引用本文复制引用
张旭,王保伟,郭媛媛,许根慧..Cu/SiO2催化剂在草酸二乙酯加氢过程中失活研究[J].燃料化学学报,2011,39(9):702-705,4.基金项目
National Key Technology R & D Program(2006BAE02B00). （2006BAE02B00）
