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Quantitative Characterization of Particle Shape of FCC Catalysts by Image Analysis

Published online by Cambridge University Press:  02 July 2020

Zhengmin Li ,
Xingzhong Xu ,
Jinghe Yang ,
Xiuling Xu ,
Weijun Yu  and
Xiuying Yue
Zhengmin Li
Affiliation:
Research Institute of Qilu Petrochemical Corp., Zibo, 255400, P.R.China
Xingzhong Xu
Affiliation:
Research Institute of Qilu Petrochemical Corp., Zibo, 255400, P.R.China
Jinghe Yang
Affiliation:
Department of Chemistry, Shandong University, Jinan, 250100, P.R.China
Xiuling Xu
Affiliation:
Research Institute of Qilu Petrochemical Corp., Zibo, 255400, P.R.China
Weijun Yu
Affiliation:
Research Institute of Qilu Petrochemical Corp., Zibo, 255400, P.R.China
Xiuying Yue
Affiliation:
Research Institute of Qilu Petrochemical Corp., Zibo, 255400, P.R.China
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Abstract

In the fluidized catalytic cracking (FCC) unit of oil refinery, the attrition resistance of FCC catalysts is affected by particle shape. Although some sophisticated methods, such as Fractal dimension and Fourier analysis, have been introduced to particle shape analysis, most of them are used to assess the shape of individual particle. It is difficult to be used as a means of powder quality control in the course of application and production of FCC catalysts. So three shape factors, i.e. Short/long ratio (S), Roundness (R) and Concavity (C), are applied to characterize them in three different aspects.

A small quantity of FCC catalyst powders were spread on a glass slide M and a thin layer of glue was spread on another glass slide N, then all the particles on slide M were sprinkled on slide N by vibrating manually up and down, in the meantime moving back and forth more than 10 times.

Type
Characterization of Catalysts (Organized by S. Bradley)
Information
Microscopy and Microanalysis , Volume 7 , Issue S2: Proceedings: Microscopy & Microanalysis 2001, Microscopy Society of America 59th Annual Meeting, Microbeam Analysis Society 35th Annual Meeting, Long Beach, California August 5-9, 2001 , August 2001 , pp. 1086 - 1087
Copyright
Copyright © Microscopy Society of America 2001

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References

references

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