The research advances of microsphere particle attrition type,attrition test method and attrition mechanism model are introduced;the time-varying law of catalyst particle attrition and the influence of va-rious factors on catalyst attrition are summarized.It is suggested that the research on thermal attrition,chemical attrition and attrition mechanism should be continued and developed,and a more perfect kinetic model should be established to improve the fluidization technology.
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