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Thermodynamic analysis of low-rank-coal-based oxygen-thermal acetylene manufacturing process system / Jing Guo in Industrial & engineering chemistry research, Vol. 51 N° 41 (Octobre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 41 (Octobre 2012) . - pp. 13414–13422 Titre : Thermodynamic analysis of low-rank-coal-based oxygen-thermal acetylene manufacturing process system Type de document : texte imprimé Auteurs : Jing Guo, Auteur ; Danxing Zheng, Auteur Année de publication : 2012 Article en page(s) : pp. 13414–13422 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Thermodynamic  Process  system Résumé : In this paper, the low-rank-coal-based oxygen-thermal method acetylene manufacturing process is established and simulated. Through the novel graphic analysis tool EFGD (Exergy-flow Framework Grassman Diagram), the energy supply and demand, the energy utilization, and energy consumption distribution are therefore obtained. Results show that the carbide furnace unit is the largest exergy loss unit, and its internal exergy loss accounts for 57.52% of the total internal exergy loss, reducing carbon consumption in a carbide furnace and reusing the off-gas will do better to improve the energy consumption of the whole system. Moreover, to further investigate the thermodynamic mechanism of energy coupling and energy conversion as well as the cause of high energy consumption, the energy configuration with ΔG-T and the α-H-ε diagram analysis is established. It reveals that the carbon combustion reaction in oxygen for CO production plays a major role in promoting the reaction for this process. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie301986q [article] Thermodynamic analysis of low-rank-coal-based oxygen-thermal acetylene manufacturing process system [texte imprimé] / Jing Guo, Auteur ; Danxing Zheng, Auteur . - 2012 . - pp. 13414–13422. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 41 (Octobre 2012) . - pp. 13414–13422 Mots-clés : Thermodynamic  Process  system Résumé : In this paper, the low-rank-coal-based oxygen-thermal method acetylene manufacturing process is established and simulated. Through the novel graphic analysis tool EFGD (Exergy-flow Framework Grassman Diagram), the energy supply and demand, the energy utilization, and energy consumption distribution are therefore obtained. Results show that the carbide furnace unit is the largest exergy loss unit, and its internal exergy loss accounts for 57.52% of the total internal exergy loss, reducing carbon consumption in a carbide furnace and reusing the off-gas will do better to improve the energy consumption of the whole system. Moreover, to further investigate the thermodynamic mechanism of energy coupling and energy conversion as well as the cause of high energy consumption, the energy configuration with ΔG-T and the α-H-ε diagram analysis is established. It reveals that the carbon combustion reaction in oxygen for CO production plays a major role in promoting the reaction for this process. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie301986q