In order to develop an environmentally friendly manufacture process of methyl glycolate (MG), the hydrogenation of dimethyl oxalate (DMO) to MG was studied through thermodynamic analysis and experiments. Effects of molar ration of H2 to DMO, reaction temperature, pressure and the DMO space velocity on conversion of DMO and selectivity of MG were investigated over the Cu/SiO2 catalysts in a packed stainless steel reactor with inner diameter 20 mm. The results showed that the DMO conversion was enhanced and the MG selectivity was decreased by the increase of reaction temperature, pressure and the decrease of DMO space velocity. The optimum reaction conditions were molar ratio of H2 to DMO 40-60, reaction pressure 2-2.5 MPa, reaction temperature 453-473 K and DMO space velocity 0.3-0.7 mg/(g·h). Under these conditions the conversation of DMO is up to 85%, yield of MG is up to 80%.%为了开发一种可持续发展的乙醇酸甲酯工业生产路线，对草酸二甲酯加氢制乙醇酸甲酯的串联反应体系进行了热力学分析，并采用铜/二氧化硅为催化剂，在内径为20 mm的不锈钢固定床反应器中考察了氢酯比、反应压力、反应温度、反应空速等工艺条件对草酸二甲酯转化率及乙醇酸甲酯选择性的影响。结果表明：提高氢酯比、反应压力、反应温度和降低草酸二甲酯空速，有利于提高草酸二甲酯的转化率，但是乙醇酸甲酯选择性下降。在氢酯比40~60、压力2~2.5 MPa、反应温度453~473 K、空速0.3~0.7 mg/(g-Cat·h)的较佳工艺条件下草酸二甲酯的转化率大于80%，乙醇酸甲酯的选择性大于80%。
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