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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 8    No. 2    June 1998

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MAGNETIC SEPARATION OF FLUID CATALYTIC CRACKING EQUILIBRIUM CATALYST
Chen Jin1  Xiang Fazhu1 and He Pingbo1  Guo Junxiang2

1.Department of Mineral Engineering, Central South University of Technology, Changsha 410083, P. R. China;
2.Department of Mining Engineering, Queens University, Kingston, Ontario, Canada K7L2J4

Abstract:Effects of magnetic field intensity and carrier air flowrate on the magnetic separation of fluid catalytic cracking(FCC) catalyst with a high gradient magnetic separator(HGMS) were studied. The activities of the equilibrium catalyst,the magnetic particles and the nonmagnetic particles were evaluated in a fixed bed microreactor. The results showed that the catalyst contaminated by heavy metal can be selectively separated by means of HGMS at magnetic field intensity 0.5T and carrier air flowrate 0.3m·s-1, and the catalyst contaminated lightly retained high catalytic activity.

 

Key words: magnetic separation fluid catalytic cracking equilibrium catalyst high gradient magnetic separator

ISSN 1672-7029
CN 43-1423/U

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