制备方法对合成低碳醇Cu-Zn-Zr催化剂性能的影响  

Effect of Preparation method on Cu-Zn-Zr catalyst performance for synthesis of higher alcohols

作　　者：王新[1] 周凡[1] 周鹏飞[1] 刘定华[1] 刘晓勤[1] 

机构地区：[1]南京工业大学化工学院,材料化学工程国家重点实验室,江苏南京210009

出　　处：《天然气化工—C1化学与化工》2016年第5期30-33,共4页Natural Gas Chemical Industry

摘　　要：采用不同方法制备了一系列Cu-Zn-Zr催化剂,借助XRD,BET,H_2-TPR和CO-TPD技术对催化剂进行了表征分析,评价了催化剂催化合成气合成低碳醇的催化性能。结果表明:添加有机助剂丙烯酰胺的并流沉淀法制备的Cu-Zn-Zr催化剂较其他方法具有晶粒细化,比表面积大,活性组分分散更均匀等优点,该催化剂催化性能较好,C_(2+)醇选择性较高。A series Cu-Zn-Zr catalysts were prepared by different precipitation modes, and characterized by XRD, BET, HE-TPR and CO-TPD. The catalytic performances of catalysts for synthesis of higher alcohols from syngas were evaluated. Results show that the catalyst prepared by co-precipitation method with addition of acrylamide possessed small grain size, large specific surface area, and more uniform dispersion of active component, which resulted in an excellent catalytic performance and higher selectivity to C2＋ alcohols.

关 键 词：Cu-Zn-Zr催化剂 沉淀方式 催化性能 低碳醇 

分 类 号：TQ223.1[化学工程—有机化工] TQ426