Abstract To investigate the behaviors of fluid catalytic cracking (FCC) catalyst under high temperature, the impact of time and jet velocity on the attrition rate of FCC catalyst (CGP-I) in a fixed fluidized bed were studied at 500 ℃ and 600 ℃. The attrition mechanism of catalyst was also investigated based on particle morphology and attrition dynamics. The results showed that attrition speed was decreased with the increase of attrition time; attrition rate was increased with the increase of temperature and jet velocity. Based on experiment results and Gwyn’s model, a macro-dynamics balance equation was established and an exponentially increasing attrition rate with attrition time and jet velocity was observed. The attrition process can be considered as a first-order irreversible process and the catalyst attrition behavior is influenced by abrasion mechanism mostly under high temperature.
MaYasong,Liu Mengxi. Study on Attrition Behavior of Fluid Catalytic Cracking Catalysts under High Temperature[J]. 化学反应工程与工艺, 2016, 32(1): 33-38.
MaYasong,Liu Mengxi. Study on Attrition Behavior of Fluid Catalytic Cracking Catalysts under High Temperature[J]. Chemical Reaction Engineering and Technology, 2016, 32(1): 33-38.
