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Kinetics of the propene oxidation over a Pt/alumina catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
50012 46776 2013 4 PDF Available
Title
Kinetics of the propene oxidation over a Pt/alumina catalyst
Abstract

•Kinetic study of propene oxidation on a Pt/Al2O3 catalyst.•Propene presented an inhibitory effect on the reaction whereas oxygen promoted it.•Langmuir–Hinshelwood model as the best rate model in fitting the experimental data.•Adsorption constants confirmed that oxygen was more weakly adsorbed on the catalyst.

This article reports the results obtained during the kinetic study of propene total oxidation on a platinum alumina catalyst in excess of oxygen. Reaction partial orders of propene and oxygen exhibited values of about − 0.5 and + 1, respectively. Propene presented a great inhibitory effect whereas an increase of oxygen concentration promoted the reaction. Based on TPD results, a Langmuir–Hinshelwood LH model considering propene to be adsorbed without dissociation was raised. A good agreement between experimental data and predicted results was observed. The value of the adsorption constants obtained confirmed that oxygen was more weakly adsorbed on the catalyst than propene.

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Keywords
Kinetic study; Propene oxidation; Platinum; Langmuir–Hinshelwood model; Molecular propene adsorption
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Kinetics of the propene oxidation over a Pt/alumina catalyst
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 36, 5 June 2013, Pages 63–66
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
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Full-text PDF Download
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