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Modeling of autocyclic reactor for the removal of unburned methane from emissions of natural gas engines / Massimiliano Zanoletti in Industrial & engineering chemistry research, Vol. 49 N° 3 (Fevrier 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 3 (Fevrier 2010) . - pp. 1063–1070 Titre : Modeling of autocyclic reactor for the removal of unburned methane from emissions of natural gas engines Type de document : texte imprimé Auteurs : Massimiliano Zanoletti, Auteur ; Danilo Klvana, Auteur ; Jitka Kirchnerova, Auteur Année de publication : 2010 Article en page(s) : pp. 1063–1070 Note générale : Industrial Chemistry Langues : Anglais (eng) Mots-clés : Autocyclic--Reactor--Unburned  Methane--from  Emissions--Natural  Gas--Engines-- Résumé : Natural gas represents an environmentally attractive alternative to diesel and gasoline fuels to reduce all automotive emissions. However, a relatively high content of unburned methane in the exhaust gases outweighs these benefits. To treat such emissions, a counter-current type fixed bed autocyclic reactor (ACR) was designed and built for laboratory testing. The efficiency of the ACR, loaded with palladium based catalysts (pellets and monoliths) was evaluated experimentally under a wide range of conditions. As a first step in modeling the ACR performance, a HT1-D model was developed to suit the actual reactor configuration. This model reproduced adequately the axial temperature profiles and methane conversion, but tuning parameters had to be used to account for heat transfer. To permit investigation of radial heat transfer and thus better understanding of the ACR behavior, a two-dimensional model was developed, and successfully validated against experimental data. The new HT2-Dt model allowed a full range of the ACR performance simulations. Note de contenu : Bibiogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900701h [article] Modeling of autocyclic reactor for the removal of unburned methane from emissions of natural gas engines [texte imprimé] / Massimiliano Zanoletti, Auteur ; Danilo Klvana, Auteur ; Jitka Kirchnerova, Auteur . - 2010 . - pp. 1063–1070. Industrial Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 3 (Fevrier 2010) . - pp. 1063–1070 Mots-clés : Autocyclic--Reactor--Unburned  Methane--from  Emissions--Natural  Gas--Engines-- Résumé : Natural gas represents an environmentally attractive alternative to diesel and gasoline fuels to reduce all automotive emissions. However, a relatively high content of unburned methane in the exhaust gases outweighs these benefits. To treat such emissions, a counter-current type fixed bed autocyclic reactor (ACR) was designed and built for laboratory testing. The efficiency of the ACR, loaded with palladium based catalysts (pellets and monoliths) was evaluated experimentally under a wide range of conditions. As a first step in modeling the ACR performance, a HT1-D model was developed to suit the actual reactor configuration. This model reproduced adequately the axial temperature profiles and methane conversion, but tuning parameters had to be used to account for heat transfer. To permit investigation of radial heat transfer and thus better understanding of the ACR behavior, a two-dimensional model was developed, and successfully validated against experimental data. The new HT2-Dt model allowed a full range of the ACR performance simulations. Note de contenu : Bibiogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900701h