前驱体硅烷化合成Y分子筛及其催化性能评价  

Synthesis of Y Molecular Sieves from Precursor Silanization and Its Catalytic Performance Evaluation

作　　者：赵晓萌 赵俊 邱苹 巩雁军[3] 蒙晓玲 杨权成[1] ZHAO Xiaomeng;ZHAO Jun;QIU Ping;GONG Yanjun;MENG Xiaoling;YANG Quancheng(School of Chemical Safety,North China Institute of Science and Technology,Langfang 065201,Hebei,China;School of Chemistry and Chemical Engineering,Xingtai University,Xingtai 054001,Hebei,China;College of Chemical Engineering and Environment,China University of Petroleum-Beijing,Beijing 102249,China;College of Biological and Chemical Engineering,Guangxi University of Science and Technology,Liuzhou 545006,Guangxi,China)

机构地区：[1]华北科技学院化工安全学院,河北廊坊065201 [2]邢台学院化学与化工学院,河北邢台054001 [3]中国石油大学(北京)化学工程与环境学院,北京102249 [4]广西科技大学生物与化学工程学院,广西柳州545006

出　　处：《材料导报》2024年第22期126-131,共6页Materials Reports

基　　金：河北省自然科学基金(E2022508047);邢台市科技创新人才专项(2022ZZ105)。

摘　　要：通过向硅铝酸盐溶胶或凝胶中引入有机硅烷来改变固体硅源体系中Y分子筛的晶化速率。研究表明,在硅铝溶胶或凝胶中引入适量的氯丙基三甲氧基硅烷(CPTMO)能够促进成核以及晶体生长,缩短晶化时间;引入氨丙基三乙氧基硅烷(APTES)会使分子筛聚集成球;通过引入不同种类的有机硅烷,Y分子筛的硅铝比(Si/Al比)在5.0~6.11范围可调。与低硅铝比Y分子筛相比,合成的高硅Y分子筛处理成的USY分子筛具有较高的水热稳定性,在苯与多乙苯液相烷基转移反应中表现出较高的反应活性。The crystallization rate of Y zeolite in a solid silicon source system was modified by introduction of organosilane into silicaluminate sol or gel.The addition of an appropriate amount of chloropropyl trimethoxysilane(CPTMO)to aluminosilicate sol or gel could promote nucleation and crystal growth,thus shortening crystallization time.The inclusion of aminopropyl triethoxysilane(APTES)could make the molecular sieve aggregate into balls.By introducing different types of organ silanes,the Si/Al ratio of Y molecular sieve could be adjusted in the range of 5.0—6.11.Compared with the NaY zeolite with low Si/Al ratio,the USY zeolite obtained through treating the high silica NaY zeolite showed higher reactivity in the liquid transalkylation of benzene with diethylbenzene.

关 键 词：硅铝酸盐 有机硅烷 Y分子筛 晶化速率 

分 类 号：O643.36[理学—物理化学]