低碳化学与化工2026，Vol.51Issue(6)：65-69,5.DOI:10.12434/j.issn.2097-2547.20250316
Ni改性Cu/SiO2催化草酸二甲酯加氢制乙醇酸甲酯性能研究
Study on catalytic performances of Ni-modified Cu/SiO2 for hydrogenation of dimethyl oxalate to methyl glycolate
摘要
Abstract
The hydrogenation of dimethyl oxalate(DMO)to methyl glycolate(MG)has the advantages of being environmentally friendly and having relatively high MG yield.To optimize the structure and catalytic performances of catalysts for hydrogenation of DMO to MG,a series of Ni-modified Cu/SiO2 with different NiO mass fractions were prepared by synchronous ammonia evaporation method,and the catalysts were characterized by N2 physical adsorption/desorption,XRD and H2-TPR.The catalytic performances of the catalysts were evaluated on a fixed-bed micro-reaction device.The results show that the NiO mass fraction has no significant effect on the texture properties of the catalysts.Under the conditions of reaction temperature of 210℃,pressure of 2 MPa and n(H2)/n(DMO)=100,10Ni-Cu/SiO2 with NiO mass fraction of 10%exhibits good catalytic performance with DMO conversion rate of 98.3%,MG selectivity of 95.4%and MG yield of 93.8%,respectively.In addition,10Ni-Cu/SiO2 has good stability,and its catalytic performance can remain stable within 500 h.关键词
同步蒸氨法/Ni改性/草酸二甲酯/加氢/乙醇酸甲酯Key words
synchronous ammonia evaporation method/Ni modification/dimethyl oxalate/hydrogenation/methyl glycolate分类
化学化工引用本文复制引用
刘宗海,姜伊科,袁满,何建龙,闫捷..Ni改性Cu/SiO2催化草酸二甲酯加氢制乙醇酸甲酯性能研究[J].低碳化学与化工,2026,51(6):65-69,5.基金项目
河南省重点研发专项(261111233000). （261111233000）
