Green and efficient dry gel conversion synthesis of SAPO-34 catalyst with plate-like morphology

作     者：Chun-Yu Di Xiao-Feng Li Ping Wang Zhi-Hong Li Bin-Bin Fan Tao Dou 

作者机构：College of Chemistry and Chemical Engineering Taiyuan University of Technology CNPC Key Laboratory of Catalysis College of Chemical Engineering China University of PetroleumBeijing 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2017年第14卷第1期

页      面：203-213页

核心收录：

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

主　　题：SAPO-34 Dry gel conversion Greenchemistry Seed suspension Plate-like - MTO 

摘      要：SAPO-34 catalyst with plate-like morphology was designed and synthesized for the first time, by the dry gel conversion method using cheap triethylamine as a structure-directing agent assisted with seed suspension containing nanosheet-like SAPO-34 seed. The latter played an important role in formation of SAPO-34 （CHA-type） with plate-like morphology. In addition, the yield of the product in the synthesis system containing seed suspension reached 97%, 15% higher than that obtained in the corre- sponding synthesis system without the seed suspension. Meanwhile, the plate-like SAPO-34 catalysts synthesized by this method exhibited higher selectivity to light olefins and longer lifetime in methanol-to-olefins （MTO） reaction than the traditional cubic SAPO-34 catalyst. This work provides a new technical route for green and efficient synthesis of SAPO-34 catalysts with improved MTO performance.