ZSM-5分子筛复氧化物催化剂的合成及催化性能的研究  

Studies on the Synthesis and Catalytic Activity of a Complex Oxides Catalyst of ZSM 5 Zeolite

作　　者：颜桂炀 林深 陈守正 

出　　处：《福建师范大学学报（自然科学版）》1998年第1期48-52,共5页Journal of Fujian Normal University：Natural Science Edition

基　　金：福建省自然科学基金

摘　　要：用浸渍法混合负载研制出一种复氧化物催化剂ＭｘＯｙ／ＺＳＭ－５（Ｍ－Ｌａ，Ｃｕ，Ｍｅ，Ｍｅ＝Ｃａ），考察了其对氯苯气相水解制苯酚反应的催化活性，并探讨了催化剂的制备条件与反应动力学条件的影响．结果表明：在负载复氧化物催化剂中添加Ｃａ，对氯苯气相水解制苯酚的催化反应具有良好的催化活性，在４７０℃，氯苯进样空速为０．２６６４ｈ－１条件下，氯苯转化率达８０．１％，苯酚产率为６６．８％，选择性为８３．４％．运用ＸＲＤ，ＤＴＡ，ＴＧ，Ｐｙ－ＩＲ等技术对催化剂的物化性能进行表征，研究了添加剂Ｃａ对催化剂性能的调变作用．A complex oxides catalyst——M xO y/ZSM 5(M La,Cu,Me,Me=Ca) is prepared by being treated with the mixed solution. This paper is a research on the catalytic activity of the catalyst for hydrolysis of chlorobenzene to phenol,and focuses on the effects of preparation conditions and dynamics conditions on the catalytic activity.The experiment results show that with the addition of calcium to the complex oxide catalyst,its catalytic activity is greatly improved in the hydrolysis of chlorobenzene. In the hydrolysis at 470℃ with the weight hourly space velocity(WHSV)=0 2664h -1 , chlorobenzene gives 66 8% phenol with 83 4% selectivity at 80 1% conversion.The physical chemical properties of the catalyst are characterized by XRD,DTA,TG and Py IR,It is also a research on the adjustment of calcium to catalytic activity.

关 键 词：分子筛 复氧化物 催化活性 合成 ZSM-5 

分 类 号：TQ424.25[化学工程]