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Condensation of acetol and acetic acid vapor and nitrogen using sprayed aqueous liquid / Leland C. Dickey in Industrial & engineering chemistry research, Vol. 51 N° 13 (Avril 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 13 (Avril 2012) . - pp. 5067–5072 Titre : Condensation of acetol and acetic acid vapor and nitrogen using sprayed aqueous liquid Type de document : texte imprimé Auteurs : Leland C. Dickey, Auteur ; Akwasi A. Boateng, Auteur ; Neil M. Goldberg, Auteur Année de publication : 2012 Article en page(s) : pp. 5067–5072 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Condensation  Acetol  Acetic  Acid Résumé : A cellulose-derived fraction of biomass pyrolysis vapor was simulated by evaporating acetol and acetic acid with heated nitrogen. After generating the vapor/nitrogen mixture, it was superheated in a tube oven and condensed by contact with an aqueous mist created by an ultrasonic spray nozzle. The rates of condensation and fractions of vapor condensed were determined for various fluid flow rates to estimate liquid flow rates necessary to obtain complete acetol vapor condensation. The effect of noncondensible gas on the condensation was determined by varying the ratio of nitrogen to acetol vapor. For standard conditions, no effect of nitrogen content on rate was seen for vapor contents greater than 10 mol %, which would include any practical fast pyrolysis vapor. Increasing the concentration of condensed vapor in the aqueous solution spray, up to 30 wt %, had little effect on the condensation rate. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie2017465 [article] Condensation of acetol and acetic acid vapor and nitrogen using sprayed aqueous liquid [texte imprimé] / Leland C. Dickey, Auteur ; Akwasi A. Boateng, Auteur ; Neil M. Goldberg, Auteur . - 2012 . - pp. 5067–5072. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 13 (Avril 2012) . - pp. 5067–5072 Mots-clés : Condensation  Acetol  Acetic  Acid Résumé : A cellulose-derived fraction of biomass pyrolysis vapor was simulated by evaporating acetol and acetic acid with heated nitrogen. After generating the vapor/nitrogen mixture, it was superheated in a tube oven and condensed by contact with an aqueous mist created by an ultrasonic spray nozzle. The rates of condensation and fractions of vapor condensed were determined for various fluid flow rates to estimate liquid flow rates necessary to obtain complete acetol vapor condensation. The effect of noncondensible gas on the condensation was determined by varying the ratio of nitrogen to acetol vapor. For standard conditions, no effect of nitrogen content on rate was seen for vapor contents greater than 10 mol %, which would include any practical fast pyrolysis vapor. Increasing the concentration of condensed vapor in the aqueous solution spray, up to 30 wt %, had little effect on the condensation rate. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie2017465