文献类型：期刊文献

中文题名：沉淀方式对二乙醇胺催化脱氢铜锰催化剂性能的影响

英文题名：Effects of precipitation methods on behaviors of Cu/Mn DEA dehydrogenation catalysts

作者：温健麟[1];金杏妹[1]

机构：[1]华东理工大学化学与分子工程学院,上海200237

年份：2010

卷号：17

期号：4

起止页码：36

中文期刊名：工业催化

外文期刊名：Industrial Catalysis

收录：CSTPCD

语种：中文

中文关键词：催化剂工程;分步沉淀法;铜锰催化剂;二乙醇胺催化脱氢

外文关键词：catalyst engineering; sequential precipitation ; Cu/Mn catalysts ; DEA dehydrogenation

摘要：研究了沉淀方式对铜锰催化剂二乙醇胺脱氢反应性能的影响,并采用XRD和H_2-TPR分别对催化剂结构和还原性能进行了表征。结果表明,分步沉淀法制备的催化剂对二乙醇胺脱氢具有更高的活性(91.9%)和亚氨基二乙酸选择性(96.2%),有利于改善锰溶出的影响,催化剂重复使用率高。H_2-TPR研究发现,分步沉淀法制备的催化剂具有更好的还原性能;XRD测试表明,分步沉淀法有利于催化剂中CuO的分散。
Effects of precipitation methods on DEA dehydrogenation over Cu/Mn catalysts were investigated. The structure and reduction behaviors of Cu/Mn catalysts were characterized by XRD and H2-TPR. The results showed that catalytic behaviors of the Cu/Mn catalysts were much influenced by precipitation methods. Catalysts prepared by sequential precipitation exhibited higher DEA conversion （91.9%）and selectivity to IDA （96.2%） than those prepared by coprecipitation method. The former method inhibited the influence of Mn dissolution and resulted in more cycles of repeated use of the catalysts. XRD results indicated that sequential precipitation favored dispersion of CuO in the catalysts.