Documents disponibles écrits par cet auteur

Carbon dioxide capture from flue gases using a cross - flow membrane contactor and the ionic liquid 1 - ethyl - 3 - methylimidazolium ethylsulfate / Jonathan Albo in Industrial & engineering chemistry research, Vol. 49 N° 21 (Novembre 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 21 (Novembre 2010) . - pp. 11045-11051 Titre : Carbon dioxide capture from flue gases using a cross - flow membrane contactor and the ionic liquid 1 - ethyl - 3 - methylimidazolium ethylsulfate Type de document : texte imprimé Auteurs : Jonathan Albo, Auteur ; Patricia Luis, Auteur ; Angel Irabien, Auteur Année de publication : 2011 Article en page(s) : pp. 11045-11051 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Ionic  liquid  Crossflow  Carbon  dioxide Résumé : Carbon dioxide (CO2) emissions have to be controlled and reduced in order to avoid environmental risks. Membrane processes in combination with the use of ionic liquids are recently under research and development in order to demonstrate a zero solvent emission process for CO2 capture. In this work, the application of a cross-flow membrane contactor is studied for CO2 absorption when the ionic liquid 1-ethyl-3-methylimidazolium ethylsulfate is used as solvent. A mathematical model considering a parallel flow configuration is applied for a cross-flow system in order to describe the mass transfer rate. At a macroscopic level, Koveralla is calculated considering different mixing models corresponding to plug flow and continuous stirred models and a first order mass transfer rate. A microscopic model based on laminar flow has been applied, obtaining a membrane mass transfer coefficient of km = 3.78 × 10―6 m•s ', which is about five times higher than that obtained in the macroscopic model. The interfacial area, a, allows the comparison of efficiencies between cross-flow and parallel membrane contactor systems in terms of the product (Koveralla). ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23448000 [article] Carbon dioxide capture from flue gases using a cross - flow membrane contactor and the ionic liquid 1 - ethyl - 3 - methylimidazolium ethylsulfate [texte imprimé] / Jonathan Albo, Auteur ; Patricia Luis, Auteur ; Angel Irabien, Auteur . - 2011 . - pp. 11045-11051. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 21 (Novembre 2010) . - pp. 11045-11051 Mots-clés : Ionic  liquid  Crossflow  Carbon  dioxide Résumé : Carbon dioxide (CO2) emissions have to be controlled and reduced in order to avoid environmental risks. Membrane processes in combination with the use of ionic liquids are recently under research and development in order to demonstrate a zero solvent emission process for CO2 capture. In this work, the application of a cross-flow membrane contactor is studied for CO2 absorption when the ionic liquid 1-ethyl-3-methylimidazolium ethylsulfate is used as solvent. A mathematical model considering a parallel flow configuration is applied for a cross-flow system in order to describe the mass transfer rate. At a macroscopic level, Koveralla is calculated considering different mixing models corresponding to plug flow and continuous stirred models and a first order mass transfer rate. A microscopic model based on laminar flow has been applied, obtaining a membrane mass transfer coefficient of km = 3.78 × 10―6 m•s ', which is about five times higher than that obtained in the macroscopic model. The interfacial area, a, allows the comparison of efficiencies between cross-flow and parallel membrane contactor systems in terms of the product (Koveralla). ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23448000

Electrochemical oxidation of lignosulfonate / A. Dominguez-Ramos ; R. Aldaco ; Angel Irabien in Industrial & engineering chemistry research, Vol. 47 n°24 (Décembre 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 n°24 (Décembre 2008) . - p. 9848–9853 Titre : Electrochemical oxidation of lignosulfonate : total organic oarbon oxidation kinetics Type de document : texte imprimé Auteurs : A. Dominguez-Ramos, Auteur ; R. Aldaco, Auteur ; Angel Irabien, Auteur Année de publication : 2009 Article en page(s) : p. 9848–9853 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Electrochemical Résumé : Lignin derivatives account for a significant fraction of biorefractory pollutants in wastewater from the pulp and paper industry. Electrochemical oxidation has been described as an efficient alternative in wastewater treatment based on electrogenerated oxidation. Lignosulfonate was selected in this work as a biorefractory reference pollutant. Total organic carbon (TOC) removal was higher than 80% under the selected experimental conditions, where chemical oxygen demand (COD) was in the range 500−1500 mg O2 L−1, current density was between 30 and 60 mA cm−2, and the concentrations of sodium sulfate and sodium chloride supporting electrolytes were 2500 and 5000 mg L−1. Experimental conditions were selected to evaluate the technical suitability of the process and to establish a kinetic model and parameters. Experiments were carried out in a laboratory scale single cell flow electrochemical reactor with boron-doped diamond electrodes. A first-order kinetic model is in good agreement with previously reported results, and kinetic parameters depending mainly on the current density agree well with previous references. A model describing the influence of the current density in the kinetic parameters allows us to calculate the surface electrochemical reaction kinetic constant and the mass transfer coefficient. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801109c [article] Electrochemical oxidation of lignosulfonate : total organic oarbon oxidation kinetics [texte imprimé] / A. Dominguez-Ramos, Auteur ; R. Aldaco, Auteur ; Angel Irabien, Auteur . - 2009 . - p. 9848–9853. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 n°24 (Décembre 2008) . - p. 9848–9853 Mots-clés : Electrochemical Résumé : Lignin derivatives account for a significant fraction of biorefractory pollutants in wastewater from the pulp and paper industry. Electrochemical oxidation has been described as an efficient alternative in wastewater treatment based on electrogenerated oxidation. Lignosulfonate was selected in this work as a biorefractory reference pollutant. Total organic carbon (TOC) removal was higher than 80% under the selected experimental conditions, where chemical oxygen demand (COD) was in the range 500−1500 mg O2 L−1, current density was between 30 and 60 mA cm−2, and the concentrations of sodium sulfate and sodium chloride supporting electrolytes were 2500 and 5000 mg L−1. Experimental conditions were selected to evaluate the technical suitability of the process and to establish a kinetic model and parameters. Experiments were carried out in a laboratory scale single cell flow electrochemical reactor with boron-doped diamond electrodes. A first-order kinetic model is in good agreement with previously reported results, and kinetic parameters depending mainly on the current density agree well with previous references. A model describing the influence of the current density in the kinetic parameters allows us to calculate the surface electrochemical reaction kinetic constant and the mass transfer coefficient. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801109c