CEPAration BV Hyflux CEPAration

Helmond, Netherlands

CEPAration BV Hyflux CEPAration

Helmond, Netherlands
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Koutsonikolas D.,Aristotle University of Thessaloniki | Kaldis S.,Center for Research and Technology Hellas | Sakellaropoulos G.P.,Aristotle University of Thessaloniki | Sakellaropoulos G.P.,Center for Research and Technology Hellas | And 3 more authors.
Separation and Purification Technology | Year: 2010

A low temperature (300 °C) CVI technique was employed to modify commercial sol-gel silica membranes, in order to repair defects often formed in their top sol-gel layer. Membranes were characterized before and after modification in terms of permeance and permselectivity with the use of He and N 2. The permselectivity of the sol-gel silica membranes varied between 3.2 and 52, while after the CVI treatment the permselectivity increased to 68-308. Moreover, a simple model was developed in order to estimate the defect concentration in silica membranes and assess their influence in the membranes performance. © 2009 Elsevier B.V. All rights reserved.

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