助剂Al改善Co/ZnO催化剂F-T反应性能的研究  

Research on the performance of Co / ZnO catalysts improved by Al promotor in Fischer-Tropsch reaction

作　　者：邸琬茗[1] 宁文生[1] 林敏波 

机构地区：[1]浙江工业大学化学工程学院,浙江杭州310032

出　　处：《工业催化》2015年第9期704-708,共5页Industrial Catalysis

基　　金：国家科技支撑计划课题(2014BAD02B05);浙江省自然科学基金(LY14B030003)资助项目

摘　　要：通过均匀沉淀法制备Zn O,将其作为Co基催化剂载体,评价Co/Zn O催化剂的F-T反应性能,研究发现,助剂Al可以改善Co/Zn O催化剂失活现象。采用XRD和H2-TPR对催化剂进行表征。结果表明,Co/Zn O催化剂主要因为反应过程中的烧结导致失活,添加助剂Al有效缓解催化剂的烧结现象,Al质量分数为0.1%时,不仅明显改善催化剂的反应稳定性,还提高催化剂的F-T反应活性。ZnO was prepared by homogeneous precipitation method. Co / Zn O catalysts were prepared by impregnating Zn O with cobalt nitrate solution,and were characterized by means of XRD and H2-TPR. The performance of Co / Zn O catalyst in Fischer-Tropsch reaction was investigated. The results showed that the deactivation phenomenon of Co / Zn O catalyst in Fischer-Tropsch reaction was improved by adding Al promoter. The sintering of metallic cobalt of Co / Zn O catalyst was the main reason for the catalyst deactivation. The addition of promoter Al effectively weakened the sintering phenomenon of the catalysts. The catalytic stability and the reactivity of Co / Zn O catalyst with Al mass fraction 0. 1% were obviously enhanced.

关 键 词：催化化学 Co/ZnO催化剂 F-T合成 助剂Al 

分 类 号：O643.36[理学—物理化学] TQ426.98[理学—化学]