SCI和EI收录∣中国化工学会会刊

Chin.J.Chem.Eng. ›› 2012, Vol. 20 ›› Issue (1): 158-166.

Previous Articles     Next Articles

In-situ Synthesis and Catalytic Properties of ZSM-5/Rectorite Composites as Propylene Boosting Additive in Fluid Catalytic Cracking Process

LIU Haiyan, CAO Liyuan, WEI Baoying, FAN Yu, SHI Gang, BAO Xaojun   

  1. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
  • Received:2011-06-09 Revised:2011-11-11 Online:2012-05-03 Published:2012-02-28
  • Supported by:
    Supported by the Ministry of Science and Technology of China Through the National Basic Research Program (2010CB226905);the National Natural Science Foundation of China for the Youth (20706059)

In-situ Synthesis and Catalytic Properties of ZSM-5/Rectorite Composites as Propylene Boosting Additive in Fluid Catalytic Cracking Process

刘海燕, 曹丽媛, 魏宝莹, 范煜, 石冈, 鲍晓军   

  1. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
  • 通讯作者: BAO Xaojun,baoxj@cup.edu.cn
  • 基金资助:
    Supported by the Ministry of Science and Technology of China Through the National Basic Research Program (2010CB226905);the National Natural Science Foundation of China for the Youth (20706059)

Abstract: Using rectorite extrudates from calcined rectorite powder as the starting material,a series of ZSM-5/rectorite composites were prepared via the in-situ crystallization method.The physicochemical properties and propylene boosting performance of the resulting samples were characterized by using X-ray diffraction,scan-ning electronic microscopy/energy dispersive spectrometer,N2 adsorption-desorption,and Fourier transformed in-frared spectroscopy of pyridine adsorption,respectively,and assessed by using Daqing atmospheric residue as feed-stock.The results showed that the ZSM-5/rectorite composites in which the ZSM-5 phase grows in-situ as a 2-3 μm thick layer on rectorite particles have a trimodal microporous-mesoporous-macroporous structure and thus exhibit outstanding propylene boosting performance.Compared with a commercial ZSM-5 incorporated fluid catalytic cracking catalyst,the ZSM-5/rectorite composite incorporated catalyst increased the yield and selectivity of pro-pylene by 2.44% and 5.35%,respectively.

Key words: ZSM-5/rectorite composite, in-situ crystallization, propylene boosting additive, fluid catalytic cracking

摘要: Using rectorite extrudates from calcined rectorite powder as the starting material,a series of ZSM-5/rectorite composites were prepared via the in-situ crystallization method.The physicochemical properties and propylene boosting performance of the resulting samples were characterized by using X-ray diffraction,scan-ning electronic microscopy/energy dispersive spectrometer,N2 adsorption-desorption,and Fourier transformed in-frared spectroscopy of pyridine adsorption,respectively,and assessed by using Daqing atmospheric residue as feed-stock.The results showed that the ZSM-5/rectorite composites in which the ZSM-5 phase grows in-situ as a 2-3 μm thick layer on rectorite particles have a trimodal microporous-mesoporous-macroporous structure and thus exhibit outstanding propylene boosting performance.Compared with a commercial ZSM-5 incorporated fluid catalytic cracking catalyst,the ZSM-5/rectorite composite incorporated catalyst increased the yield and selectivity of pro-pylene by 2.44% and 5.35%,respectively.

关键词: ZSM-5/rectorite composite, in-situ crystallization, propylene boosting additive, fluid catalytic cracking

CLC Number: