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Designing a packed dividing wall column for an aromatics processing plant / Igor Dejanovic in Industrial & engineering chemistry research, Vol. 50 N° 9 (Mai 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5680-5692 Titre : Designing a packed dividing wall column for an aromatics processing plant Type de document : texte imprimé Auteurs : Igor Dejanovic, Auteur ; Ljubica Matijasevic, Auteur ; Helmut Jansen, Auteur Année de publication : 2011 Article en page(s) : pp. 5680-5692 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Aromatics  processing  plant Résumé : This paper introduces a comprehensive design method assembled using facilities of a commercial software package that complemented by Excel programs, which contain own column dimensioning and well established cost estimation procedures, enables proper assessment of the industrial viability of a dividing wall column (DWC) equipped with corrugated sheet structured packings. The heart of the performance simulation tool is a detailed four-column model that in conjunction with a simple, theoretically founded short-cut method providing reliable initial values for liquid and vapor splits and a simple but effective objective function for design optimality indication allows determination of the adequate stage and reflux requirement of a DWC. The proposed dimensioning method enables a close approach in accuracy to that required at the stage of conceptual design for purposes of making a bid by an equipment manufacturer. Compared to a two-columns-in-series configuration, as employed in an aromatics processing complex within a refinery, a DWC equipped with state-of-the-art structured packing and auxiliary internals requires approximately 43% less energy to deliver three fractions at required product specifications. This, accompanied by savings of nearly 51% based on total annualized costs, indicates that implementing a DWC could lead to a significant increase in profitability of aromatics processing plants. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1020206 [article] Designing a packed dividing wall column for an aromatics processing plant [texte imprimé] / Igor Dejanovic, Auteur ; Ljubica Matijasevic, Auteur ; Helmut Jansen, Auteur . - 2011 . - pp. 5680-5692. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5680-5692 Mots-clés : Aromatics  processing  plant Résumé : This paper introduces a comprehensive design method assembled using facilities of a commercial software package that complemented by Excel programs, which contain own column dimensioning and well established cost estimation procedures, enables proper assessment of the industrial viability of a dividing wall column (DWC) equipped with corrugated sheet structured packings. The heart of the performance simulation tool is a detailed four-column model that in conjunction with a simple, theoretically founded short-cut method providing reliable initial values for liquid and vapor splits and a simple but effective objective function for design optimality indication allows determination of the adequate stage and reflux requirement of a DWC. The proposed dimensioning method enables a close approach in accuracy to that required at the stage of conceptual design for purposes of making a bid by an equipment manufacturer. Compared to a two-columns-in-series configuration, as employed in an aromatics processing complex within a refinery, a DWC equipped with state-of-the-art structured packing and auxiliary internals requires approximately 43% less energy to deliver three fractions at required product specifications. This, accompanied by savings of nearly 51% based on total annualized costs, indicates that implementing a DWC could lead to a significant increase in profitability of aromatics processing plants. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1020206