عنوان
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Modelling of Deactivation of Pd-Au Catalyst in Vinyl Acetate Synthesis from Oxidation of Ethylene and Acetic Acid in the Gaseous Phase
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نوع پژوهش
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مقاله چاپشده
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کلیدواژهها
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vinyl acetate monomer, Pd–Au/SiO2 catalyst, fixed-bed reactor, deactivation model
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چکیده
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Vinyl acetate monomer (VAM) is produced from oxidation of ethylene and acetic acid on a Pd-Au/SiO2 catalyst in the gaseous phase. A progressive loss in activity occurs during the lifetime of a commercial Pd-Au/SiO2 VAM synthesis catalyst; thus, the efficiency of the reaction decreases and the process is no longer operational and economically feasible. In this study, the effective parameters on Pd-Au/SiO2 catalyst deactivation were investigated using a fixed-bed reactor pilot, and a model was proposed to predict the reduction in catalyst activity. The proposed model's output was compared with experimental data and an acceptable agreement was observed. The error was <10 %.
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پژوهشگران
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کاظم مطهری (بازنشسته) (نفر اول)
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