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- W2378089079 abstract "The quantity,composition and location of the coke on spent fluidized catalytic cracking(FCC) catalysts are of critical importance for knowledge on the FCC mechanism and provide insights into development of new FCC catalysts.Illustrated with a spent FCC catalyst from a refinery,the coke was separated by extraction and demineralization.The quantity,composition and location of the coke were comprehensively characterized by multiple diagnostic techniques,including elemental analysis,thermal gravity analysis,infrared spectroscopy,gas chromatography-mass spectroscopy,nuclear magnetic resonance and N2 adsorption.The coke accounted for 1.9% mass fraction of the spent catalyst,which was composed of a dichloromethane soluble light component and an insoluble heavy component.The light component accounted for 27% of the total coke,which was mainly composed of saturated hydrocarbons and aromatic hydrocarbons with low degree of condensation.The heavy component accounted for 73% of the total coke,which was mainly composed of aromatic hydrocarbons with high degree of condensation.The coke mainly deposited in the macro-and meso-pores of the catalysts.The analysis results suggested that it was possible to lower the coke yield and enhance the gasoline and diesel yield by adjusting the operation parameters of stripping in the industrial FCC setups." @default.
- W2378089079 created "2016-06-24" @default.
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- W2378089079 date "2011-01-01" @default.
- W2378089079 modified "2023-09-23" @default.
- W2378089079 title "Characterization of Coke on Spent Catalytic Cracking Catalysts by Integrated Techniques" @default.
- W2378089079 hasPublicationYear "2011" @default.
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