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- W2392594857 abstract "Spent industrial catalyst samples for hydrodesulfurization(HDS) of heavy oil were collected and treated by ultrasonic washing and supercritical fluid extraction. The samples were characterized by mean of various techniques: TPO|MS, TG, DTA, SEM|EDS, XRD and TPR, and the reasons for the deactivation of the catalyst were studied. It's shown that deposited carbon and deposited metals on the catalysts were the main factors resulting in the deactivation, and state of the active elements on the catalysts can be restored and improved by removing the deposited carbon and deposited metals. The method used to unload the deactivated catalysts from industrial reactor also has some effect on their chemicophysical properties ." @default.
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- W2392594857 date "1999-01-01" @default.
- W2392594857 modified "2023-09-25" @default.
- W2392594857 title "Deactivation of NiMo/ γ |Al 2O 3 Catalysts for Hydrodesulfurization of Heavy Oil" @default.
- W2392594857 hasPublicationYear "1999" @default.
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