Preparation method and application of dimethyl oxalate selective hydrogenation catalyst

The invention discloses a preparation method and application of a dimethyl oxalate selective hydrogenation catalyst. The preparation process of the catalyst is simple, active nano-copper is uniformly dispersed, Ag clusters are deposited on the surface to improve the stability, migration and coalescence of copper in the use process of the catalyst are effectively prevented, and the activity and thermal stability of Ag-CuNPS are further improved through the synergistic coupling pore channel effect generated between silicon dioxide core-shell structures. The prepared catalyst can be used for selective hydrogenation of dimethyl oxalate, reaction conditions are changed according to production requirements, co-production of methyl glycolate (MG), ethylene glycol (EG) and ethyl alcohol (EtOH) is achieved only by using the catalyst in the same device, and the catalyst has important significance and value and is wide in application prospect. 本发明公开了一种草酸二甲酯选择性加氢催化剂的制备方法及应用。本发明的催化剂制备过程简单，活性纳米铜分散均匀，表面沉积Ag团簇，来提高稳定性，有效防止催化剂