Rigorous modeling and simulation of an absorption−stripping loop for the removal of acid gases / Huepen, Bernhard in Industrial & engineering chemistry research, Vol. 49 N° 2 (Janvier 2010)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 49 N° 2 (Janvier 2010) . - pp 772–779 Titre : Rigorous modeling and simulation of an absorption−stripping loop for the removal of acid gases Type de document : texte imprimé Auteurs : Huepen, Bernhard, Auteur ; Kenig, Eugeny Y., Auteur Année de publication : 2010 Article en page(s) : pp 772–779 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Acid gases Absorption Stripping. Résumé : In this work, a universal rate-based model is presented that enables the rigorous simulation of absorption and stripping units, as well as their combination as an absorption−stripping loop. The latter is realized by simultaneous treatment of the two units and their environment. The model is applied to the removal of acid gases by aqueous amine solutions. It is capable of describing the complex interplay of chemical reactions and heat and multicomponent mass transfer, as well as accounting for thermodynamic nonidealities including the specific behavior of electrolyte solutions. Furthermore, the influence of column internals and hydraulics is considered through relevant correlations. To simulate the total absorption−stripping loop, the model is supplemented by additional submodels for the column periphery (e.g., heat exchangers). All models are implemented in the simulation environment Aspen Custom Modeler and validated by comparison with experimental data of an industrial-scale acid gas removal process. In addition, the effects of model parameters on the behavior of both the absorption and stripping columns and the impact of model simplifications are investigated. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9003927 [article] Rigorous modeling and simulation of an absorption−stripping loop for the removal of acid gases [texte imprimé] / Huepen, Bernhard, Auteur ; Kenig, Eugeny Y., Auteur . - 2010 . - pp 772–779. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 2 (Janvier 2010) . - pp 772–779 Mots-clés : Acid gases Absorption Stripping. Résumé : In this work, a universal rate-based model is presented that enables the rigorous simulation of absorption and stripping units, as well as their combination as an absorption−stripping loop. The latter is realized by simultaneous treatment of the two units and their environment. The model is applied to the removal of acid gases by aqueous amine solutions. It is capable of describing the complex interplay of chemical reactions and heat and multicomponent mass transfer, as well as accounting for thermodynamic nonidealities including the specific behavior of electrolyte solutions. Furthermore, the influence of column internals and hydraulics is considered through relevant correlations. To simulate the total absorption−stripping loop, the model is supplemented by additional submodels for the column periphery (e.g., heat exchangers). All models are implemented in the simulation environment Aspen Custom Modeler and validated by comparison with experimental data of an industrial-scale acid gas removal process. In addition, the effects of model parameters on the behavior of both the absorption and stripping columns and the impact of model simplifications are investigated. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9003927

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