Abstract
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.
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Original Russian Text © R.R. Akberov, A.R. Fazlyev, A.V. Klinov, A.V. Malygin, M.I. Farakhov, V.A. Maryakhina, S.M. Kirichenko, 2014, published in Teoreticheskie Osnovy Khimicheskoi Tekhnologii, 2014, Vol. 48, No. 5, pp. 594–600.
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Akberov, R.R., Fazlyev, A.R., Klinov, A.V. et al. Dehydration of diethylene glycol by pervaporation using HybSi ceramic membranes. Theor Found Chem Eng 48, 650–655 (2014). https://doi.org/10.1134/S0040579514030014
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DOI: https://doi.org/10.1134/S0040579514030014