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- Title
Modelling of deactivation of Pd-Au catalyst in vinyl acetate synthesis from oxidation of ethylene and acetic acid in the gaseous phase.
- Authors
Motahari, Kazem; Rempel, Garry; Lashkarara, Saba; Ghaseminezhad, Keyhan; Borumandnejad, Amin; Hatami, Babak
- Abstract
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 %.
- Subjects
MONOMERS; OXIDATION of ethylene; CATALYST poisoning
- Publication
Canadian Journal of Chemical Engineering, 2016, Vol 94, Issue 3, p506
- ISSN
0008-4034
- Publication type
Article
- DOI
10.1002/cjce.22400