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Autor Izquierdo Gil, María Amparo |
Documentos disponibles escritos por este autor (29)
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Contreras González, José Luis ; Barragán García, Vicenta María ; Dinis Vizcaíno, Luis Ignacio ; Izquierdo Gil, María Amparo ; Mohino Harris, Elsa ; Rosado Vélez, Jaime ; Zarco Moreno, Manuel ; Álvarez Nicolás, Carlos ; Barrio Uña, Juan Abel ; Nieto Castaño, Daniel ; Rodríguez Pérez, Oscar ; Salvadores Bustamante, Diego | 2020-02-06En convocatorias anteriores de la convocatorias de Proyectos de Innovación Docente de l UCM, la última de ellas correspondiente a 2014, desarrollamos un Catálogo de experiencias de cátedra para la docencia de Física General, OSCAR. En esta edic[...]![]()
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García Payo, María del Carmen ; Izquierdo Gil, María Amparo ; Fernández Pineda, Cristóbal | Elsevier Science BV | 2000-04-30Aqueous solutions of alcohol (ethanol, methanol or isopropanol) have been experimentally investigated in air gap membrane distillation (AGMD), for a wide range of operating conditions. The effects of the relevant process parameters on the permea[...]![]()
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García Payo, María del Carmen ; Izquierdo Gil, María Amparo ; Fernández Pineda, Cristóbal | Elsevier Science BV | 1999-04-12In this paper results obtained with air gap membrane distillation (AGMD) using sucrose aqueous solutions are shown. The role of the relevant process parameters has been investigated experimentally (the flow rate through the cell, the feed initia[...]![]()
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Barragán García, Vicenta María ; García Villaluenga, Juan Pedro ; Izquierdo Gil, María Amparo ; Godino Gómez, María Paz ; Seoane Rodríguez, Benjamín ; Ruiz Bauzá, Carlos | Elsevier Science BV | 2008-10-15Liquid permeation and uptake measurements of pure water and methanol were carried out using three commercial cation-exchange membranes: Nafion-117 (perfluorinated polyethylene with pendant ether-linked side chains terminated with sulfonated grou[...]![]()
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Dinis Vizcaíno, Luis Ignacio ; Barragán García, Vicenta María ; Contreras González, José Luis ; Barrio Uña, Juan Abel ; Godino Gómez, María Paz ; Izquierdo Gil, María Amparo ; Mohino Harris, Elsa ; Rodríguez López, Oscar ; Rodríguez Pérez, Oscar ; Zarco Moreno, Manuel | 2015-07-10En convocatorias anteriores de los PIMCD se ha desarrollado un Catálogo de experiencias de cátedra para la docencia de Física General que cuenta actualmente con más de 40 experiencias en funcionamiento disponibles en el Laboratorio de Física Gen[...]![]()
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Izquierdo Gil, María Amparo ; García Payo, María del Carmen ; Fernández Pineda, Cristóbal | Taylor & Francis Inc | 1999Results are given from direct contact membrane distillation, using tangential flows to the membrane, with sugar aqueous solutions. Several effects on the distillation process are examined: flow rate through the cell, nature of the feed solutions[...]![]()
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Barragán García, Vicenta María ; García Villaluenga, Juan Pedro ; Morales Villarejo, Victor ; Izquierdo Gil, María Amparo | Multidisciplinary Digital Publishing Institute | 2020-06The aim of this work is to apply linear non-equilibrium thermodynamics to study the electrokinetic properties of three cation-exchange membranes of different structures in ethanol-water electrolyte solutions. To this end, liquid uptake and elect[...]![]()
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Barragán García, Vicenta María ; García Villaluenga, Juan Pedro ; Izquierdo Gil, María Amparo ; Pérez Cordón, Rafael | IOP Publishing | 2016-07This paper presents a novel method for determining the temperature of a radiating body. The experimental method requires only very common instrumentation. It is based on the measurement of the stationary temperature of an object placed at differ[...]![]()
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García Villaluenga, Juan Pedro ; Somovilla, Pilar ; Barragán García, Vicenta María ; Izquierdo Gil, María Amparo | Elsevier | 2016Liquid uptake and streaming potential have been determined in aqueous sodium chloride solutions for five different commercial sulfonated polymer cation-exchange membranes. The selected membranes have distinct morphologies and electrochemical pro[...]![]()
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Barragán García, Vicenta María ; García Villaluenga, Juan Pedro ; Godino Gómez, María Paz ; Izquierdo Gil, María Amparo ; Ruiz Bauzá, Carlos ; Seoane Rodríguez, Benjamín | Academic Press Inc Elsevier Science | 2009-05-15Solvent uptake, hydraulic and electroosmotic permeabilities, true cation transport number, effective fixed charge concentration, and limiting current values have been determined in aqueous LiCl solutions for three commercial cation-exchange memb[...]![]()
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Membrane distillation (MD) has a great potential as a concentration process for temperature labile liquids such as fruit juices, etc. Besides water, also aroma compounds will permeate through the membrane depending on their volatility and how th[...]![]()
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Izquierdo Gil, María Amparo ; Fernández Pineda, Cristóbal ; Lorenz, M. G. | Elsevier Science BV | 2008-08-15Direct contact membrane distillation (DCMD) experiments using distilled water are reported. Influence on the process of feed and permeate flow rates through the cell has been investigated in a wide flow range, from 2 to 8l/min. Two main effects [...]![]()
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García Villaluenga, Juan Pedro ; Barragán García, Vicenta María ; Izquierdo Gil, María Amparo ; Godino Gómez, María Paz ; Seoane Rodríguez, Benjamín ; Ruiz Bauzá, Carlos | John Wiley & SONS INC | 2009-11-05Liquid permeation measurements of water, methanol, and 2-propanol were carried out using a commercial cation-exchange membrane Nafion-117 (perfluorinated polyethylene with pendant ether-linked side chains terminated with sulfonated groups). The [...]![]()
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Fernández Pineda, Cristóbal ; Izquierdo Gil, María Amparo ; García Payo, María del Carmen | Elsevier Science BV | 2002-03-31Gas permeation experiments using helium, air and argon and direct contact membrane distillation (DCMD) experiments using distilled water are reported. From gas permeation experiments the characteristic parameters of the Knudsen and Poiseuille tr[...]![]()
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In this paper a new high precision automatic measurement system for liquid level measurement in membrane distillation application is presented. Membrane distillation (MD) is a relatively new process that is being investigated worldwide. It has s[...]![]()
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Godino Gómez, María Paz ; Barragán García, Vicenta María ; García Villaluenga, Juan Pedro ; Izquierdo Gil, María Amparo ; Ruiz Bauzá, Carlos ; Seoane Rodríguez, Benjamín | Elsevier Science, SA | 2010-08-15The aim of this work was to study the sorption and transport of different water–alcohol solutions (methanol, ethanol, 1-propanol and 2-propanol solutions) when a Nafion 117 membrane is separating them. It was observed that methanol permeability [...]![]()
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Godino Gómez, María Paz ; Barragán García, Vicenta María ; Izquierdo Gil, María Amparo ; García Villaluenga, Juan Pedro ; Seoane Rodríguez, Benjamín ; Ruiz Bauzá, Carlos | Taylor & Francis Inc | 2011Measurements of liquid transport were made with a Nafion membrane at different cationic forms. The experimental data are used to estimate the alcohol permeability when the membrane is separating water and water-methanol solutions. The obtained p[...]![]()
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Izquierdo Gil, María Amparo ; Barragán García, Vicenta María ; Godino Gómez, María Paz ; García Villaluenga, Juan Pedro ; Ruiz Bauzá, Carlos ; Seoane Rodríguez, Benjamín | Elsevier Science BV | 2009-01-12The salt flow through several commercial cation-exchange membranes separating two NaCl alcohol-water solutions with the same alcohol concentration, but different NaCl concentration was investigated. Homogeneous (Nafion-115) and heterogeneous (MK[...]![]()
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Izquierdo Gil, María Amparo | Universidad Complutense de Madrid, Servicio de Publicaciones | 1997-10-22En este trabajo se han diseñado, construido y puesto a punto dos tipos de dispositivos experimentales, que nos permiten, los dos, medir los flujos en destilación en membranas con las modalidades de contacto directo y con "gap" de aire. Se ha est[...]![]()
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Izquierdo Gil, María Amparo ; Lorenz, M. G. ; Sánchez Reillo, R. ; Fernández Pineda, Cristóbal | 2007Membrane distillation (MD) [I] is a relatively new process that is being investigated world-wide as a low cost, energy saving alternative to conventional separation processes such as distillation and reverse osmosis (RO). This process offers som[...]![]()
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Godino Gómez, María Paz ; Barragán García, Vicenta María ; García Villaluenga, Juan Pedro ; Izquierdo Gil, María Amparo ; Seoane Rodríguez, Benjamín ; Ruiz Bauzá, Carlos | Elsevier Science SA | 2009-10-01This study investigates the influence of different operating parameters in the transport of water and methanol through a Nafion membrane when it is used to separatewater fromamethanol–water solution. For this purpose, measurements of mass flux a[...]![]()
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Barragán García, Vicenta María ; Izquierdo Gil, María Amparo ; Godino Gómez, María Paz ; García Villaluenga, Juan Pedro | Amer Chemical Soc | 2009-10-01The effect of an ac sinusoidal perturbation of known amplitude and frequency superimposed to the usual dc applied electric voltage difference on the electroosmotic flow through three cation-exchange membranes with different morphology has been s[...]![]()
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Barragán García, Vicenta María ; García Villaluenga, Juan Pedro ; Godino Gómez, María Paz ; Izquierdo Gil, María Amparo ; Ruiz Bauzá, Carlos ; Seoane Rodríguez, Benjamín | Elsevier Science BV | 2008-12-01Electro-osmosis experiments through three cation-exchange membranes with different morphology and similar electric properties have been performed using methanol-water solutions under different experimental conditions. The influence on the electr[...]![]()
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Single gas permeation experiments results using neon, argon, nitrogen and methane are reported. From gas permeation experiments the characteristic parameters of the Knudsen and Poiseuille transport mechanisms were determined by means of an equat[...]![]()
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Izquierdo Gil, María Amparo ; García Villaluenga, Juan Pedro ; Muñoz San Martín, Sagrario ; Barragán García, Vicenta María | MDPI | 2020-08-17The salt permeability through three commercial cation-exchange membranes with different morphologies is investigated in aqueous NaCl solutions. Ion-exchange membranes (IEMs) find application in different processes such as electrodialysis, revers[...]