Four HZSM-5 zeolites with the silica/alumina molar ratios of 50, 150, 360 and 470, respectively, were used as the supports to prepare the Cu/HZSM-5 catalysts with the Cu content of 20% by mass by ammonia evaporation method, and the catalysts were characterized by H_2-TPR, NH_3-TPD, XRD and FT-IR. The catalytic performances of the catalysts for dimethyl oxalate hydrogenation were investigated. The results show that the silica/alumina ratio of support affected significantly the conversion and selectivity of r...
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