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Simulation study on the distillation of hyper - pseudoazeotropic HI – I2 – H2O mixture / Hanfei Guo in Industrial & engineering chemistry research, Vol. 50 N° 20 (Octobre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 20 (Octobre 2011) . - pp. 11644-11656 Titre : Simulation study on the distillation of hyper - pseudoazeotropic HI – I2 – H2O mixture Type de document : texte imprimé Auteurs : Hanfei Guo, Auteur ; Seiji Kasahara, Auteur ; Kaoru Onuki, Auteur Année de publication : 2011 Article en page(s) : pp. 11644-11656 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Distillation Résumé : The iodine-sulfur thermochemical water splitting process (I-S process) is considered to be one of the most promising clean and large-scale hydrogen production approaches. In the I-S process, the HI distillation step is considerably energy intensive, the heat of which largely affects the overall efficiency of hydrogen production. The present study explored the efficient operating parameters of the distillation column by process simulation assuming the feed solution of hyper-pseudoazeotropic composition which was obtainable by electro-electrodialysis. The Environmental Simulation Program (ESP), the chemical simulation software, was used for the simulation. At first, the vapor-liquid equilibrium database was validated using experimental data reported so far. Then, sensitivity analyses of the operating parameters were carried out, comprised of the HI mole fraction in the distillate, number of stages, feed location of the column, operating pressure, and feed composition. On the basis of the results of the sensitivity analyses, the optimum operation conditions were discussed. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24612390 [article] Simulation study on the distillation of hyper - pseudoazeotropic HI – I2 – H2O mixture [texte imprimé] / Hanfei Guo, Auteur ; Seiji Kasahara, Auteur ; Kaoru Onuki, Auteur . - 2011 . - pp. 11644-11656. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 20 (Octobre 2011) . - pp. 11644-11656 Mots-clés : Distillation Résumé : The iodine-sulfur thermochemical water splitting process (I-S process) is considered to be one of the most promising clean and large-scale hydrogen production approaches. In the I-S process, the HI distillation step is considerably energy intensive, the heat of which largely affects the overall efficiency of hydrogen production. The present study explored the efficient operating parameters of the distillation column by process simulation assuming the feed solution of hyper-pseudoazeotropic composition which was obtainable by electro-electrodialysis. The Environmental Simulation Program (ESP), the chemical simulation software, was used for the simulation. At first, the vapor-liquid equilibrium database was validated using experimental data reported so far. Then, sensitivity analyses of the operating parameters were carried out, comprised of the HI mole fraction in the distillate, number of stages, feed location of the column, operating pressure, and feed composition. On the basis of the results of the sensitivity analyses, the optimum operation conditions were discussed. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24612390