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Selecting the optimum predistillation scheme for heavy crude oils / Yanhong Wang in Industrial & engineering chemistry research, Vol. 50 N° 18 (Septembre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 18 (Septembre 2011) . - pp. 10549-10556 Titre : Selecting the optimum predistillation scheme for heavy crude oils Type de document : texte imprimé Auteurs : Yanhong Wang, Auteur ; Yanjie Hou, Auteur ; Hong Gao, Auteur Année de publication : 2011 Article en page(s) : pp. 10549-10556 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Crude  oil Résumé : The problem of designing a crude distillation unit (CDU) is not only a distillation design. It has the added complexity that the properties of crudes are different around the world, sometimes from heavy to light. In this work, we focused our attention on designing a predistillation scheme suitable for heavy crude oils by thermodynamic analysis. The exergy efficiencies and losses were analyzed to evaluate available schemes indicating that the two-preflash-drums case, with the highest exergy efficiencies, lowest exergy losses, and lowest furnace duty, is the best choice for heavy crude oils. In addition, the method of selecting the optimum process for energy saving may benefit the process optimization of other distillation units. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24523877 [article] Selecting the optimum predistillation scheme for heavy crude oils [texte imprimé] / Yanhong Wang, Auteur ; Yanjie Hou, Auteur ; Hong Gao, Auteur . - 2011 . - pp. 10549-10556. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 18 (Septembre 2011) . - pp. 10549-10556 Mots-clés : Crude  oil Résumé : The problem of designing a crude distillation unit (CDU) is not only a distillation design. It has the added complexity that the properties of crudes are different around the world, sometimes from heavy to light. In this work, we focused our attention on designing a predistillation scheme suitable for heavy crude oils by thermodynamic analysis. The exergy efficiencies and losses were analyzed to evaluate available schemes indicating that the two-preflash-drums case, with the highest exergy efficiencies, lowest exergy losses, and lowest furnace duty, is the best choice for heavy crude oils. In addition, the method of selecting the optimum process for energy saving may benefit the process optimization of other distillation units. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24523877