Reference : Optimization of experimental procedure and statistical data treatment for kinetics of et...
Scientific journals : Article
Engineering, computing & technology : Chemical engineering
http://hdl.handle.net/2268/19596
Optimization of experimental procedure and statistical data treatment for kinetics of ethylene hydrogenation on a copper-magnesia catalyst
English
Pirard, Sophie mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Chimie physique appliquée > >]
Heinrichs, Benoît mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Chimie physique appliquée > >]
Heyen, Georges [Université de Liège - ULg > Département de chimie appliquée > LASSC (Labo d'analyse et synthèse des systèmes chimiques) >]
Pirard, Jean-Paul mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Chimie physique appliquée > >]
2008
Chemical Engineering Journal
Elsevier Science
138
1-3
367-378
Yes (verified by ORBi)
International
1385-8947
Lausanne
Switzerland
[en] copper catalyst ; kinetics ; experimental design ; ethylene hydrogenation
[en] This study is an example of practical application of kinetic data treatment for simultaneous model discrimination and parameter estimation. The study is applied to the hydrogenation of ethylene on a copper-magnesia catalyst and brings a deepened analysis about the experimental strategy by comparing several alternative strategies using a priori and sequential experimental designs. The best model corresponds to a Langmuir-Hinshelwood mechanism with non-competing adsorption of hydrogen and ethylene and where the rate-determining step is either the addition of molecularly adsorbed hydrogen or the addition of the second atom of hydrogen adsorbed dissociatively. Furthermore, the important question of knowing in practice how many designs and how many measurements per design are actually necessary to determine accurate kinetic and physico-chemical parameters, is addressed. A data correction procedure is also presented that takes catalyst deactivation into account. (C) 2007 Elsevier B.V. All rights reserved.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
http://hdl.handle.net/2268/19596
also: http://hdl.handle.net/2268/19784
10.1016/j.cej.2007.06.009

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