助剂对二氧化碳加氢合成甲醇催化剂性能的影响
发表时间:2022-10-16
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第一作者:商敏静
通讯作者:陈绍云,李桂民,张永春
发表时间:2022-10-09
发表刊物:现代化工
文献类型:J
期号:7
页面范围:50-52,54
ISSN号:0253-4320
摘要:CuO-ZnO-ZrO2 catalysts are prepared by co-precipitation and modified with metal oxides as promoters. The effects of the addition of Ag2O or La2O3 promoter on the catalytic performance of CuO-ZnO-ZrO2 catalyst are investigated in a fixed-bed plug flow reactor for CO2 hydrogenation to methanol. The catalysts are characterized by XRD and H2-TPR. The results show that, both the promoters can improve the activity of CuO-ZnO-ZrO2 and the catalyst with 6% La2O3 shows the best catalytic activity. The investigation of catalysts indicates that Ag served as active sites in the CuO-ZnO-ZrO2 catalyst and the appropriate amount of La2O3 helps to improve the dispersion of CuO and ZnO.
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