石油炼制与化工 ›› 2017, Vol. 48 ›› Issue (9): 27-30.

• 催化剂 • 上一篇    下一篇

介孔ZSM-5分子筛的制备及其在催化裂化反应中的应用

袁程远,潘志爽,谭争国,张海涛,段宏昌   

  1.  中国石油兰州化工研究中心

  • 收稿日期:2017-05-02 修回日期:2017-05-18 出版日期:2017-09-12 发布日期:2017-08-25
  • 通讯作者: 袁程远 E-mail:yuanchengyuan@petrochina.com.cn
  • 基金资助:
    中国石油天然气股份有限公司科技管理部资助项目

PREPARATION, CHARACTERIZATION OF ZSM-5 SIEVE WITH MESOSTRUCTURE AND ITS APPLICATION IN CATALYTIC CRACKING

    

  1.  
  • Received:2017-05-02 Revised:2017-05-18 Online:2017-09-12 Published:2017-08-25
  • Supported by:
     

摘要: 以NaOH为碱源、十六烷基三甲基溴化铵(CTAB)为骨架保护剂,通过碱抽提方法制备新型介孔ZSM-5分子筛,并考察其催化裂化反应性能。结果表明:相对于传统碱抽提方法制备的介孔ZSM-5分子筛,新型介孔ZSM-5分子筛的比表面积和孔体积以及结晶度显著提高;与ZSM-5分子筛和传统碱抽提方法制备的介孔ZSM-5分子筛相比,新型介孔ZSM-5分子筛的微反活性分别提高19百分点和13百分点,裂化产物汽油产率分别增加18.8百分点和12.6百分点,汽油组分辛烷值分别增加1.9和1.4个单位。

关键词: 介孔结构, ZSM-5, 碱抽提, CTAB, 沸石, 催化裂化

Abstract: A new type of mesostructured ZSM-5 sieve (ZSM-new) was prepared by alkali extraction method using CTAB as a framework protective agent and NaOH as alkali source, and tested to investigate its catalytic cracking performance. The new type of mesoporous ZSM-5 molecular sieve was increased significantly in terms of surface area and pore volume and crystallinity. Compared with the original ZSM-5 raw material and the mesostructured ZSM-5 sieve (ZSM-old) prepared by traditional alkali extraction method, the MAT activity of ZSM-new increases by 19 and 13 percentage points, the gasoline yield in the cracking products is up by 18.8 and 12.6 percentage points, and the RON of gasoline increases by 1.9 and 1.4, respectively.

Key words: mesostructure, ZSM-5, alkali extraction, CTAB, zeolite, catalytic cracking

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