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以加强甲醇合成催化剂(CuO/ZnO)与甲醇脱水催化剂(γ-Al_2O_3)之间的密切接触为主要目标,研究了干混、湿混和共沉淀浸渍等制备方法以及用共沉淀浸渍法制备过程中沉淀混合物的干燥温度、煅烧温度及添加剂硼对合成气一步制二甲醚(DME)复合催化剂性能的影响。讨论了反应温度、空速等反应条件对反应过程的影响。结果表明,用共沉淀浸渍法制备,80～100℃烘干,450℃煅烧并含少量硼的复合催化剂性能最好。
In order to strengthen the close contact between methanol synthesis catalyst (CuO / ZnO) and methanol dehydration catalyst (γ-Al 2 O 3), the preparation methods such as dry mixing, wet mixing and coprecipitation impregnation and the preparation process by coprecipitation impregnation The temperature of the precipitated mixture, the calcination temperature and the effect of the additive boron on the performance of DME catalyst in one-step synthesis of syngas were investigated. The effects of reaction conditions such as reaction temperature and space velocity on the reaction process were discussed. The results show that the coprecipitation impregnation method, 80 ~ 100 ℃ drying, 450 ℃ calcination and a small amount of boron containing the best performance of the composite catalyst.