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Reversible autocatalytic hydrolysis of alkyl formate / Olatunde Jogunola in Industrial & engineering chemistry research, Vol. 49 N° 9 (Mai 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 9 (Mai 2010) . - pp. 4099–4106 Titre : Reversible autocatalytic hydrolysis of alkyl formate : kinetic and reactor modeling Type de document : texte imprimé Auteurs : Olatunde Jogunola, Auteur ; Tapio Salmi, Auteur ; Kari Eranen, Auteur Année de publication : 2010 Article en page(s) : pp. 4099–4106 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Hydrolysis  Kinetic Résumé : The kinetics and thermodynamics of alkyl formate hydrolysis in liquid phase were studied in a laboratory-scale autoclave at temperatures between 333 and 383 K using different molar ratios of the reactants. The process was found to exhibit an autocatalytic effect due to the acid formed. More so, the rate of neutral hydrolysis of ethyl formate is faster compared to methyl formate in the uncatalyzed reaction. However, the autocatalytic effect is more pronounced in methyl formate hydrolysis. In addition, the effect of adding a small amount of formic acid as an initial charge upon the equilibrium conversion and kinetics was investigated, and it was found that the addition improved the reaction rate by reducing the induction period but it suppressed slightly the equilibrium conversion. A kinetic model was proposed to explain these experimental trends, and the model agreed well with the experimental results. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie902031d [article] Reversible autocatalytic hydrolysis of alkyl formate : kinetic and reactor modeling [texte imprimé] / Olatunde Jogunola, Auteur ; Tapio Salmi, Auteur ; Kari Eranen, Auteur . - 2010 . - pp. 4099–4106. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 9 (Mai 2010) . - pp. 4099–4106 Mots-clés : Hydrolysis  Kinetic Résumé : The kinetics and thermodynamics of alkyl formate hydrolysis in liquid phase were studied in a laboratory-scale autoclave at temperatures between 333 and 383 K using different molar ratios of the reactants. The process was found to exhibit an autocatalytic effect due to the acid formed. More so, the rate of neutral hydrolysis of ethyl formate is faster compared to methyl formate in the uncatalyzed reaction. However, the autocatalytic effect is more pronounced in methyl formate hydrolysis. In addition, the effect of adding a small amount of formic acid as an initial charge upon the equilibrium conversion and kinetics was investigated, and it was found that the addition improved the reaction rate by reducing the induction period but it suppressed slightly the equilibrium conversion. A kinetic model was proposed to explain these experimental trends, and the model agreed well with the experimental results. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie902031d