Composite membranes with micro- or mesoporous silicates and organic polymers

Authors
Parvulescu, V Buhoci, L Roman, G Albu, B Popescu, G
Citation
V. Parvulescu et al., Composite membranes with micro- or mesoporous silicates and organic polymers, SEP PURIF T, 25(1-3), 2001, pp. 25-32
Citations number
8
Categorie Soggetti
Chemical Engineering
Journal title
SEPARATION AND PURIFICATION TECHNOLOGY
ISSN journal
13835866 → ACNP
Volume
25
Issue
1-3
Year of publication
2001
Pages
25 - 32
Database
ISI
SICI code
1383-5866(20011001)25:1-3<25:CMWMOM>2.0.ZU;2-V
Abstract
ZSM-5, MCM-41 and SiO2-Al2O3 composite membranes were prepared and characte rized. In such an order the influence of the chemical composition and powde r properties on the permeability and the surface acidity of the composite m embranes were investigated. Inorganic powders have been characterized by XR D, IR-spectroscopy, nitrogen adsorption - desorption and potentiometric tit ration. The permeability of the membranes has been tested, in the catalytic reactor conditions, using a Wicke-Kallenbach cell. The results shown the v ariation of the gas (O-2, H-2, CH4) and liquid (H2O, C6H12) permeability wi th porosity of the inorganic powders and composition of the membranes. (C) 2001 Published by Elsevier Science B.V.