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用热分析技术确定了铜系催化剂(CuO-ZnO-Al_2O_3)活性组份的准确含量,考察了它们的直接和间接还原行为,确立了还原度与还原温度的关系。并以50℃下的一氧化碳为活性气体,测定了催化剂的吸附量,比较了它们的相对初活性。为低压合成甲醇铜系催化剂的改进提供依据。
The exact content of CuO-ZnO-Al_2O_3 active components was determined by thermal analysis technique. The direct and indirect reduction behavior of CuO-ZnO-Al_2O_3 was investigated. The relationship between reduction degree and reduction temperature was established. The amount of catalyst adsorbed was measured by using carbon monoxide at 50 ° C as the reactive gas, and their relative initial activities were compared. It provided the basis for the improvement of low-pressure synthesis of copper-based catalysts.