Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (1): 1.doi: 10.7503/cjcu20200419

Special Issue: 分子筛功能材料 2021年,42卷,第1期

• Review • Previous Articles     Next Articles

Progress in Direct Synthesis of High Silica Zeolite Y

WANG Juan1,2, WANG Linying1, ZHU Dali1, CUI Wenhao1, WANG Yifeng1, TIAN Peng1(), LIU Zhongmin1()   

  1. 1.National Engineering Laboratory for Methanol to Olefins,Dalian National Laboratory for Clean Energy,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China
    2.Zhang Dayu School of Chemistry,Dalian University of Technology,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China
  • Received:2020-06-29 Online:2021-01-10 Published:2021-01-12
  • Contact: TIAN Peng,LIU Zhongmin E-mail:tianpeng@dicp.ac.cn;liuzm@dicp.ac.cn
  • Supported by:
    ? Supported by the National Natural Science Foundation of China(21676262);the Autonomous Deployment Foundation of Dalian Institute of Chemical Physics, Chinese Academy of Sciences(DICP ZZBS201807)

Abstract:

The synthesis of zeolite Y and its application in fluidized catalytic cracking could be taken as a milestone in the field of oil refining and petrochemical industry. It is well-known that the framework SiO2/Al2O3 molar ratio(SAR) of zeolite Y determines its thermal/hydrothermal stability and catalytic properties. To improve the framework SAR of zeolite Y can effectively decrease acid sites density, enhance acid strength and thus ameliorate the thermal/hydrothermal stability and catalytic cracking performance. Currently, the high silica zeolite Y used in industry is prepared by complex post-synthesis treatment. Although direct synthesis is an ideal way to obtain high zeolite Y, it remains a challenging topic in the field of zeolite synthesis. Herein, we review the progress in direct synthesis of high silica zeolite Y, including the syntheses both in inorganic and organic systems. At last, we summarize the crystallization mechanism of zeolite Y.

Key words: High-silica zeolite Y, Template, Directing agent, Crystallization mechanism

CLC Number: 

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