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Experimental and theoretical studies of a dividing - wall column used for the recovery of high - purity products / Gerit Niggemann in Industrial & engineering chemistry research, Vol. 49 N° 14 (Juillet 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 14 (Juillet 2010) . - pp. 6566–6577 Titre : Experimental and theoretical studies of a dividing - wall column used for the recovery of high - purity products Type de document : texte imprimé Auteurs : Gerit Niggemann, Auteur ; Christoph Hiller, Auteur ; Georg Fieg, Auteur Année de publication : 2010 Article en page(s) : pp. 6566–6577 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Dividing  wall  columns. Résumé : Although dividing-wall columns are now well established in industrial practice, their complex hydraulics is not well understood, and open literature does not provide any quantitative information in this respect. This study aims to provide the missing knowledge. Hence, a pilot plant was built to separate a ternary mixture of fatty alcohols into high-purity products of 99 wt %. A model was established to simulate this separation process. It could successfully describe the experiments quantitatively and even account for the self-adjustment of the vapor splits. A case study with the validated model highlighted the strong influence of the heat transfer across the vertical partition wall on hydrodynamics and vapor distribution. These aspects are of special interest for the design and scale-up of dividing-wall columns. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1003416 [article] Experimental and theoretical studies of a dividing - wall column used for the recovery of high - purity products [texte imprimé] / Gerit Niggemann, Auteur ; Christoph Hiller, Auteur ; Georg Fieg, Auteur . - 2010 . - pp. 6566–6577. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 14 (Juillet 2010) . - pp. 6566–6577 Mots-clés : Dividing  wall  columns. Résumé : Although dividing-wall columns are now well established in industrial practice, their complex hydraulics is not well understood, and open literature does not provide any quantitative information in this respect. This study aims to provide the missing knowledge. Hence, a pilot plant was built to separate a ternary mixture of fatty alcohols into high-purity products of 99 wt %. A model was established to simulate this separation process. It could successfully describe the experiments quantitatively and even account for the self-adjustment of the vapor splits. A case study with the validated model highlighted the strong influence of the heat transfer across the vertical partition wall on hydrodynamics and vapor distribution. These aspects are of special interest for the design and scale-up of dividing-wall columns. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1003416