IBMEM - Ing.-Büro für Membrantechnik
Max-Planck-Str.9, 61381 Friedrichsdorf (Frankfurt/Main), Germany
Tel. +49 (0)6172 137-132 - E-Mail: info@ibmem.com
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IBMEM - Ing.-Büro für Membrantechnik
Max-Planck-Str.9, 61381 Friedrichsdorf (Frankfurt/Main), Germany Tel. +49 (0)6172 137-132 - E-Mail: info@ibmem.com |
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other pressure driven membrane separations (micro-, ultrafiltration,..) |
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Principles and Applications of PERVAPORATION |
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Membrane Screening Test and Pilotes |
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Indutrial Plants |
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Contact
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DRYING OF SOLVENTS The most common methods for the removal of water are: - Adsorption - Coalescing - Distillation, - Liquid-Liquid extraction - Membrane separation - Salting-out - Fractional freezing The advantages of the Pervaporation (membrane separation) are: + not affected by azeotrope (unlike distillation) + low operating costs (only the energy for the evaporation of water) + continuous process (unlike adsorption requiring a regeneration) WHEN TO USE Alcohols Ethanol and Isopropanol dehydration from their azeotropes to 1000ppm to 1% water content is THE standard application of Pervaporation. - Ethanol - Isopropanol - Amylic Alcohol Ketones - Acetone - MEK, Methyl Ethyl ketone - MIBK, Methyl Isobutyl Ketone Esters - Methyl acetate - Ethyl acetate - Butyl acetate Solvent mixtures |