Documents disponibles écrits par cet auteur

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

Experimental characterization and modeling of high performance structured packings / Zarko Olujic in Industrial & engineering chemistry research, Vol. 51 N° 11 (Mars 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 11 (Mars 2012) . - pp. 4414-4423 Titre : Experimental characterization and modeling of high performance structured packings Type de document : texte imprimé Auteurs : Zarko Olujic, Auteur ; Thomas Rietfort, Auteur ; Helmut Jansen, Auteur Année de publication : 2012 Article en page(s) : pp. 4414-4423 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Ordered  packing  Modeling Résumé : Results are presented of the total reflux distillation experiments carried out with the newest generation of J. Montz corrugated sheet structured packings, including metal sheet packings (B1-250MN, B1-350MN, B1-500MN), expanded metal packings (BS-500MN), and wire gauze packings (A3-500M), using a 0.59 m i.d. column and chlorobenzene/ethylbenzene as a test system. It appears that by combining appropriately the dimensions and design of corrugations and the corrugation inclination angle, either efficiency or capacity, or occasionally even both, can be enhanced significantly, depending on the type of the packing. This allows leaner columns in new designs and more capacity and other benefits in retrofit situations. The Delft model, with appropriate enhancement of the turbulent vapor flow mass transfer coefficient and the flow direction change related pressure drop, proved to be capable of approaching closely measured efficiency and pressure drop both qualitatively and quantitatively. The exception in this respect is the pressure drop of B1-500MN, with a significant underprediction that is more pronounced at 1 bar than at 0.1 bar, while the trend as well as the predicted points of onset of loading are close to observed ones. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25655649 [article] Experimental characterization and modeling of high performance structured packings [texte imprimé] / Zarko Olujic, Auteur ; Thomas Rietfort, Auteur ; Helmut Jansen, Auteur . - 2012 . - pp. 4414-4423. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 11 (Mars 2012) . - pp. 4414-4423 Mots-clés : Ordered  packing  Modeling Résumé : Results are presented of the total reflux distillation experiments carried out with the newest generation of J. Montz corrugated sheet structured packings, including metal sheet packings (B1-250MN, B1-350MN, B1-500MN), expanded metal packings (BS-500MN), and wire gauze packings (A3-500M), using a 0.59 m i.d. column and chlorobenzene/ethylbenzene as a test system. It appears that by combining appropriately the dimensions and design of corrugations and the corrugation inclination angle, either efficiency or capacity, or occasionally even both, can be enhanced significantly, depending on the type of the packing. This allows leaner columns in new designs and more capacity and other benefits in retrofit situations. The Delft model, with appropriate enhancement of the turbulent vapor flow mass transfer coefficient and the flow direction change related pressure drop, proved to be capable of approaching closely measured efficiency and pressure drop both qualitatively and quantitatively. The exception in this respect is the pressure drop of B1-500MN, with a significant underprediction that is more pronounced at 1 bar than at 0.1 bar, while the trend as well as the predicted points of onset of loading are close to observed ones. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25655649