Removal and recovery of organic solvents from aqueous waste mixtures by extractive and pressure swing distillation / G. Modla in Industrial & engineering chemistry research, Vol. 51 N° 35 (Septembre 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 35 (Septembre 2012) . - pp. 11473-11481 Titre : Removal and recovery of organic solvents from aqueous waste mixtures by extractive and pressure swing distillation Type de document : texte imprimé Auteurs : G. Modla, Auteur ; P. Lang, Auteur Année de publication : 2012 Article en page(s) : pp. 11473-11481 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Distillation Waste water Organic solvent Résumé : Different scenarios for handling wastewaters of different concentrations containing acetone and methanol (in equimolar quantities) in order to remove and/or recover organic components are investigated by rigorous simulation. The extractive and pressure swing distillation processes are optimized by genetic algorithm (GA). The different alternatives including incineration of the whole amount of waste are compared on the basis of the capital, operation, and total annual costs. The influence of the water content of the waste mixture is also investigated. The best results are obtained with the separation of the whole quantity of the waste mixture into specified purity products by extractive distillation. The results obtained for pressure swing distillation with heat integration remained only slightly under those of the extractive distillation. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26324796 [article] Removal and recovery of organic solvents from aqueous waste mixtures by extractive and pressure swing distillation [texte imprimé] / G. Modla, Auteur ; P. Lang, Auteur . - 2012 . - pp. 11473-11481. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 35 (Septembre 2012) . - pp. 11473-11481 Mots-clés : Distillation Waste water Organic solvent Résumé : Different scenarios for handling wastewaters of different concentrations containing acetone and methanol (in equimolar quantities) in order to remove and/or recover organic components are investigated by rigorous simulation. The extractive and pressure swing distillation processes are optimized by genetic algorithm (GA). The different alternatives including incineration of the whole amount of waste are compared on the basis of the capital, operation, and total annual costs. The influence of the water content of the waste mixture is also investigated. The best results are obtained with the separation of the whole quantity of the waste mixture into specified purity products by extractive distillation. The results obtained for pressure swing distillation with heat integration remained only slightly under those of the extractive distillation. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26324796

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