SynopsisSeparation of aqueous ethanol solution was carried out by pervaporation using a membrane which consisted of common polymer membranes. A membrane obtained from poly( tert-butyl methacrylate-co-styrene) was effective for a selective separation of ethanol from aqueous ethanol solution by pervaporation technique. The pervaporation of ethanol-water mixture through the present membranes was analyzed as a solution-diffusion process, on the assumption that the both diffusion coefficients of each component are an exponential function of ethanol concentration.
Separation of ethanol from aqueous ethanol solution was carried out by pervaporation through a membrane which consists of common synthetic polymers. A membrane from poly(cyclohexyl methacrylate-co-styrene) showed membrane performance that preferentially permeated ethanol from ethanol-water mixtures by pervaporation technique. The pervaporation of ethanol-water mixture through the present membrane was analyzed as a solution-diffusion process.
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