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HFC-134a hydrate formation kinetics during continuous gas hydrate formation with a kenics static mixer for gas separation / Hideo Tajima in Industrial & engineering chemistry research, Vol. 49 N° 5 (Mars 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 5 (Mars 2010) . - pp. 2525–2532 Titre : HFC-134a hydrate formation kinetics during continuous gas hydrate formation with a kenics static mixer for gas separation Type de document : texte imprimé Auteurs : Hideo Tajima, Auteur ; Toru Nagata, Auteur ; Yutaka Abe, Auteur Année de publication : 2010 Article en page(s) : pp. 2525–2532 Note générale : Industrial Chemistry Langues : Anglais (eng) Mots-clés : HFC-134;  Gas Résumé : Gas hydrate formation kinetics were investigated in a Kenics static mixer. When operated under thermodynamic conditions (pressure or temperature), the hydrate formation rate increased and the HFC-134a gas bubble was covered with a hydrate “shell”. This hydrate shell inhibited hydrate growth because of resistance to mass transfer. Water recycling in the hydrate reactor accelerated hydrate formation by increasing the gas−water interface during water−gas cocurrent flow and causing the continued presence of a fresh interface in the counterflow. The kinetic data indicated that the hydrate formation rate would be equal to the mass transfer rate including the rate of hydrate shedding from the gas bubble. Enriched HFC-134a gas could be continuously recovered from an HFC-134a-nitrogen mixture in a continuous hydrate formation system. The hydrate formation rate constant for the mixed gas depended on the feed gas components Note de contenu : Bibliogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901613h [article] HFC-134a hydrate formation kinetics during continuous gas hydrate formation with a kenics static mixer for gas separation [texte imprimé] / Hideo Tajima, Auteur ; Toru Nagata, Auteur ; Yutaka Abe, Auteur . - 2010 . - pp. 2525–2532. Industrial Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 5 (Mars 2010) . - pp. 2525–2532 Mots-clés : HFC-134;  Gas Résumé : Gas hydrate formation kinetics were investigated in a Kenics static mixer. When operated under thermodynamic conditions (pressure or temperature), the hydrate formation rate increased and the HFC-134a gas bubble was covered with a hydrate “shell”. This hydrate shell inhibited hydrate growth because of resistance to mass transfer. Water recycling in the hydrate reactor accelerated hydrate formation by increasing the gas−water interface during water−gas cocurrent flow and causing the continued presence of a fresh interface in the counterflow. The kinetic data indicated that the hydrate formation rate would be equal to the mass transfer rate including the rate of hydrate shedding from the gas bubble. Enriched HFC-134a gas could be continuously recovered from an HFC-134a-nitrogen mixture in a continuous hydrate formation system. The hydrate formation rate constant for the mixed gas depended on the feed gas components Note de contenu : Bibliogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901613h