Dehydration of diethylene glycol by pervaporation using HybSi ceramic membranes

The pervaporation dehydration of diethylene glycol using ceramic tubular membranes with a hydrophilic selective layer formed from HybSi material was experimentally studied. The experiments were carried out over the process temperature range of 70–90°C at pressures in the permeate part of membrane un...

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Bibliographic Details
Published in:Theoretical foundations of chemical engineering 2014-09, Vol.48 (5), p.650-655
Main Authors: Akberov, R. R., Fazlyev, A. R., Klinov, A. V., Malygin, A. V., Farakhov, M. I., Maryakhina, V. A., Kirichenko, S. M.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
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Summary:The pervaporation dehydration of diethylene glycol using ceramic tubular membranes with a hydrophilic selective layer formed from HybSi material was experimentally studied. The experiments were carried out over the process temperature range of 70–90°C at pressures in the permeate part of membrane unit in the range of 5–30 mm Hg and at diethylene glycol concentrations in the range of 93.5–99.8 wt %. Dependences of the membrane surface area required for the dehydration of diethylene glycol over a predetermined range of concentrations on productivity, process temperature, and vacuum were determined.
ISSN:0040-5795
1608-3431
DOI:10.1134/S0040579514030014