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Computational fluid dynamics modeling of acetylene pyrolysis for vacuum carburizing of steel / Dominic Buchholz 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. 1130–1137 Titre : Computational fluid dynamics modeling of acetylene pyrolysis for vacuum carburizing of steel Type de document : texte imprimé Auteurs : Dominic Buchholz, Auteur ; Rafi Ullah Khan, Auteur ; Siegfried Bajohr, Auteur ; Rainer Reimert, Auteur Année de publication : 2010 Article en page(s) : pp. 1130–1137 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Computational--fluid  dynamics--modeling--acetylene--pyrolysis--vacuum  carburizing--steel Résumé : The operation of vacuum carburizing plants suffers from the production of unwanted byproducts like tarry hydrocarbons and soot. In order to identify mechanisms which influence the amount and the composition of these byproducts, the pyrolysis of commonly used gaseous hydrocarbons has been investigated under the conditions of vacuum carburizing of steel. Purposely, this investigation included a close look at the interaction of the pyrolysis reactions in the gas phase with the surface reactions leading to the carburization of the steel. Simulation results for the homogeneous pyrolysis of acetylene under vacuum carburizing conditions obtained with our own model are compared with measurements and with results received with commercially available modeling tools. Furthermore, experimental results of the vacuum carburizing of steel are presented and compared with simulation results. The paper focuses on the applicability of the own model and of commercial software tools for process simulation required for optimizing the vacuum and low pressure carburizing of steel. Note de contenu : Bibiogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900996h [article] Computational fluid dynamics modeling of acetylene pyrolysis for vacuum carburizing of steel [texte imprimé] / Dominic Buchholz, Auteur ; Rafi Ullah Khan, Auteur ; Siegfried Bajohr, Auteur ; Rainer Reimert, Auteur . - 2010 . - pp. 1130–1137. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 3 (Fevrier 2010) . - pp. 1130–1137 Mots-clés : Computational--fluid  dynamics--modeling--acetylene--pyrolysis--vacuum  carburizing--steel Résumé : The operation of vacuum carburizing plants suffers from the production of unwanted byproducts like tarry hydrocarbons and soot. In order to identify mechanisms which influence the amount and the composition of these byproducts, the pyrolysis of commonly used gaseous hydrocarbons has been investigated under the conditions of vacuum carburizing of steel. Purposely, this investigation included a close look at the interaction of the pyrolysis reactions in the gas phase with the surface reactions leading to the carburization of the steel. Simulation results for the homogeneous pyrolysis of acetylene under vacuum carburizing conditions obtained with our own model are compared with measurements and with results received with commercially available modeling tools. Furthermore, experimental results of the vacuum carburizing of steel are presented and compared with simulation results. The paper focuses on the applicability of the own model and of commercial software tools for process simulation required for optimizing the vacuum and low pressure carburizing of steel. Note de contenu : Bibiogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900996h