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Artículo

Glycerol etherification with benzyl alcohol over sulfated zirconia catalysts

Jaworski, María AngélicaIcon ; Rodríguez Vega, Sergio; Siri, Guillermo JorgeIcon ; Casella, Mónica LauraIcon ; Romero Salvador, Arturo; Santos López, Aurora
Fecha de publicación: 02/05/2015
Editorial: Elsevier Science
Revista: Applied Catalysis A: General
ISSN: 0926-860X
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ingeniería Química; Otras Ingeniería Química

Resumen

Glycerol (GLY) etherification with benzyl alcohol (BA) was conducted with different zirconia-based heterogeneous acid catalysts, aiming to produce mono- (ME) and dibenzyl glycerol ethers (DE). Physicochemical properties of the prepared catalysts were obtained through XRD, SEM and adsorption of ammonia. The catalytic tests were performed at different temperatures (120-140°C) and initial reactant mass ratios (GLY:BA 1:1 and 2:1). The highest BA conversions were obtained with the catalyst having the highest sulfuric acid content (2S/ZrO2). An increase in the reaction temperature and the GLY:BA initial mass ratio led to an increase in the BA conversion. Two kinetic models (a potential and a hyperbolic approach) were proposed to describe the process performance, including not only reactants evolution with time, but also that of ME, DE and the undesired self-condensation product of BA (benzyl ether, BE). Kinetic parameters for each model were estimated by data fitting and both models were able to accurately describe the evolution of the system, in terms of reactants and product distribution as a function of time under the experimental conditions studied.
Palabras clave: Benzyl Alcohol , Etherification , Glycerol , Kinetic Modeling , Sulfated Zirconia Catalysts
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/27872
URL: http://www.sciencedirect.com/science/article/pii/S0926860X15002604?via%3Dihub
DOI: http://dx.doi.org/10.1016/j.apcata.2015.04.027
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Articulos(CINDECA)
Articulos de CENTRO DE INV EN CS.APLICADAS "DR.JORGE J.RONCO"
Citación
Jaworski, María Angélica; Rodríguez Vega, Sergio; Siri, Guillermo Jorge; Casella, Mónica Laura; Romero Salvador, Arturo; et al.; Glycerol etherification with benzyl alcohol over sulfated zirconia catalysts; Elsevier Science; Applied Catalysis A: General; 505; 2-5-2015; 36-43
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