浸渍顺序对CuFe基低碳醇合成催化剂性能的影响  

Effect of Impregnation Sequence on the Performances of CuFe-Based Catalysts for Mixed Alcohol Synthesis

作　　者：张伟[1] 金杨福[1] 宁文生[1] 

机构地区：[1]浙江工业大学化学工程学院,杭州

出　　处：《清洁煤与能源》2014年第4期49-54,共6页Clean Coal and Energy

基　　金：浙江省自然科学基金(LY14B030003);国家科技支撑计划(2014BAD02B05)对本工作的支持。

摘　　要：采用SiO2作为载体,利用浸渍法负载Cu、Zn和Fe,通过不同的浸渍顺序获得多种CuFe基催化剂,并用固定床反应器测试了这些催化剂的CO加氢反应活性,Cu、Zn和Fe同时浸渍的催化剂活性最高,而分步浸渍导致活性下降。XRD结果说明这是由于共浸渍使得CuFe两种组分相互均匀分布,形成的活性中心最多,反应性能最高。Adopting SiO2 as carrier, CuFe-based catalysts were prepared through different impregnation se-quences which were impregnated by Cu, Zn and Fe. The activity of CO hydrogenation of these cat-alysts was tested in fixed-bed reactor. The catalyst impregnated by Cu, Zn and Fe simultaneously has the highest activity, but consecutive impregnation leads to the decrease of activity. The results showed that the co-impregnation makes Cu and Fe distribute uniformly in the catalyst, which forms the most active centers, with the highest reactive performance.

关 键 词：CuFe催化剂 浸渍顺序 CO加氢反应 低碳醇合成 

分 类 号：O64[理学—物理化学]