Documents disponibles écrits par cet auteur

Entrainer screening for separation of isoparaffins and naphthenes by extractive distillation / Sifang Li in Industrial & engineering chemistry research, Vol. 48 N° 11 (Juin 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 11 (Juin 2009) . - pp. 5427–5430 Titre : Entrainer screening for separation of isoparaffins and naphthenes by extractive distillation Type de document : texte imprimé Auteurs : Sifang Li, Auteur ; Hai Liu, Auteur Année de publication : 2009 Article en page(s) : pp. 5427–5430 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Entrainer  screening  Isoparaffins  Naphthenes  Extractive  distillation Résumé : In the entrainer screening for separation of isoparaffins and naphthenes (C9−C14) by extractive distillation of D60 oil, various single entrainers and mixed entrainers were used and studied. Sulfolane was the most selective entrainer as a single entrainer was applied and the relative volatility of isoparaffins to naphthenes reached 1.648 as the sulfolane to oil ratio was 5:1. Both mixed entrainers of sulfolane + triethylene glycol and sulfolane + dimethyl phthalate show good synergistic effect, whereas a mixed entrainer of triethylene glycol and dimethyl phthalate shows little synergistic effect. The most selective mixed entrainer was a mixture of 50 vol % of sulfolane and 50 vol % of dimethyl phthalate, the relative volatility of isoparaffins to naphthenes reached 1.835. Results from the experiment in an extractive distillation column show that isoparaffins concentration of more than 95 wt % in the isoparaffins product and naphthenes concentration of more than 94 wt % in the naphthenes product are achieved. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900267m [article] Entrainer screening for separation of isoparaffins and naphthenes by extractive distillation [texte imprimé] / Sifang Li, Auteur ; Hai Liu, Auteur . - 2009 . - pp. 5427–5430. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 11 (Juin 2009) . - pp. 5427–5430 Mots-clés : Entrainer  screening  Isoparaffins  Naphthenes  Extractive  distillation Résumé : In the entrainer screening for separation of isoparaffins and naphthenes (C9−C14) by extractive distillation of D60 oil, various single entrainers and mixed entrainers were used and studied. Sulfolane was the most selective entrainer as a single entrainer was applied and the relative volatility of isoparaffins to naphthenes reached 1.648 as the sulfolane to oil ratio was 5:1. Both mixed entrainers of sulfolane + triethylene glycol and sulfolane + dimethyl phthalate show good synergistic effect, whereas a mixed entrainer of triethylene glycol and dimethyl phthalate shows little synergistic effect. The most selective mixed entrainer was a mixture of 50 vol % of sulfolane and 50 vol % of dimethyl phthalate, the relative volatility of isoparaffins to naphthenes reached 1.835. Results from the experiment in an extractive distillation column show that isoparaffins concentration of more than 95 wt % in the isoparaffins product and naphthenes concentration of more than 94 wt % in the naphthenes product are achieved. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900267m