晶化条件对SAPO-34结晶度及催化活性的影响  

Effects of Crystallization Conditions on the Crystallinity and Catalytic Activity of SAPO-34

作　　者：付晔[1] 王乐夫[2] 谭宇新[2] 

机构地区：[1]华南理工大学科研处,广东广州510640 [2]华南理工大学化工学院,广东广州510640

出　　处：《华南理工大学学报（自然科学版）》2001年第4期30-32,共3页Journal of South China University of Technology(Natural Science Edition)

基　　金：广东省自然科学基金资助项目! (980 5 12 )

摘　　要：研究了硅含量、铝硅源和操作条件对SAPO_34分子筛结晶度的影响 ,并探讨了以不同结晶度的SAPO_34分子筛为载体的催化剂在NO转化为N2 反应中的催化性能 .结果表明 ,采用无机铝源和无机硅源、以及采用预晶化和搅拌处理均有利于提高SAPO_34分子筛的结晶度 .结晶度高的SAPO_34 。The effects of Si content, the various sources of Al and Si, and the operation methods on the crystallinity of SAPO_34 were studied. The activities of catalysts in the process of selective reduction NO by using SAPO_34 with different degrees of crystallinity as supports were investigated. It was found that those using inorganic precursors of Al and Si, or through pre_crystallization and stir treatment can improve the degrees of crystallinity of SAPO_34. The SAPO_34 which had high degree of crystallinity, showed good catalytic activity.

关 键 词：晶化条件 SAPO-34 结晶度 催化活性 磷酸硅铝 分子筛 预晶化 搅拌处理 

分 类 号：O643.361[理学—物理化学]