高等学校化学学报 ›› 2021, Vol. 42 ›› Issue (1): 1.doi: 10.7503/cjcu20200419

所属专题: 分子筛功能材料 2021年,42卷,第1期

• 综合评述 • 上一篇    下一篇

高硅Y沸石的合成研究进展

王娟1,2, 王林英1, 朱大丽1, 崔文浩1, 王义峰1, 田鹏1(), 刘中民1()   

  1. 1.中国科学院大连化学物理研究所甲醇制烯烃国家工程实验室, 洁净能源国家实验室, 大连 116023
    2.大连理工大学中国科学院大连化学物理研究所张大煜学院, 大连 116023
  • 收稿日期:2020-06-29 出版日期:2021-01-10 发布日期:2021-01-12
  • 通讯作者: 田鹏,刘中民 E-mail:tianpeng@dicp.ac.cn;liuzm@dicp.ac.cn
  • 基金资助:
    国家自然科学基金(批准号(21676262);21091990, 21091991)和中国科学院大连化学物理研究所自主部署基金(DICP ZZBS201807)

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)

摘要:

Y沸石的合成及在流化催化裂化中的应用在现代石油化学工业中具有里程碑意义. Y沸石的骨架硅铝比直接影响材料的热/水热稳定性及催化性能. 提高Y沸石的骨架硅铝比、 合理减少酸中心密度、 提高酸强度, 进而改善催化裂化反应性能一直是学术界和工业界关注的重要课题. 目前工业使用的高硅Y沸石均是通过复杂的后处理方法获得的. 与复杂的后处理方法相比, 直接合成高硅Y沸石是更理想的方式, 但其难度大, 为分子筛领域具有挑战性的课题. 本文系统总结了高硅Y沸石的直接合成研究进展, 分别对无机合成体系和有机模板剂合成体系进行综合评述, 并介绍了Y沸石的晶化机理研究进展.

关键词: 高硅Y沸石, 模板剂, 导向剂, 晶化机理

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

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