不同沉淀方式对丙烯氧化催化剂结构和性能的影响  

Effects of precipitation methods on the structure and properties of propylene oxidation catalyst

作　　者：曾贤君[1] 孙彦民[1] 苗静[1] 李世鹏[1] 李晓云[1] 于海斌[1] 郭郢[2] 费家明[2] 

机构地区：[1]中国海油天津化工研究设计院,天津300131 [2]中国石油吉林石化公司,吉林吉林132022

出　　处：《工业催化》2011年第3期53-56,共4页Industrial Catalysis

摘　　要：采用不完全沉淀、共沉淀和分步沉淀法制备Mo-Bi-Co-Fe-O复合氧化物催化剂,对其结构进行表征,并应用于丙烯氧化制丙烯醛反应。结果表明,使用分步沉淀法制备的催化剂在反应温度320℃和反应压力111 kPa条件下,丙烯转化率为97.68%,收率达94.04%。Mo-Bi-Co-Fe-O mixed oxide catalysts for acrolein synthesis were prepared by three methods of incomplete precipitation,co-precipitation and stepwise precipitation and characterized by XRD,SEM,EDS and H2-TPR techniques.The results showed that the catalyst prepared by stepwise precipitation method had high catalytic activity under the reaction condition of temperature 320 ℃ and pressure 111 kPa,with propylene conversion of 97.68% and acrolein yield of 94.04%.

关 键 词：催化剂工程 沉淀方式 Mo—Bi—Co—Fe-O复合氧化物催化剂 丙烯醛 丙烯氧化 

分 类 号：TQ426.94[化学工程] O643.36[理学—物理化学]