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Direct contact membrane distillation of sugar aqueous solutions

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Izquierdo Gil, María Amparo and García Payo, María del Carmen and Fernández Pineda, Cristóbal (1999) Direct contact membrane distillation of sugar aqueous solutions. Separation Science And Technology, 34 (9). pp. 1173-1801. ISSN 0149-6395

Official URL: http://dx.doi.org/10.1081/SS-100100738


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Abstract

Results 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, initial concentrations of the feed solutions, average temperature, and temperature difference. On the basis of enthalpy flux conservation in the different regions, various systems of equations are proposed for the estimation of the interfacial temperatures. Based on the known temperatures of the liquid-vapor interfaces, the experimental distillate fluxes for several sets are fitted to the gas stagnant film diffusion model to obtain the effective diffusion coefficients of the water vapor-air mixture, D-ef, and the results are analyzed.


Item Type:Article
Uncontrolled Keywords:Microporous membranes; Vapor transport; Gas
Subjects:Sciences > Physics > Thermodynamics
ID Code:23704
Deposited On:27 Nov 2013 10:24
Last Modified:23 Feb 2015 12:50

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