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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Ramos, António Pinho
in Cooperation with on an Cooperation-Score of 37%
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Publications (6/6 displayed)
- 2019Behavior of thin lightly reinforced flat slabs under concentric loadingcitations
- 2019Punching capacity of rc slab-column joints with opening under lateral loading
- 2018Performance assessment of flat slabs strengthened with a bonded reinforced-concrete overlaycitations
- 2017Accelerated action of external sulfate and chloride to study corrosion of tensile steel in reinforced concretecitations
- 2014On the efficiency of flat slabs strengthening against punching using externally bonded fibre reinforced polymerscitations
- 2014PVA composite catalytic membranes for hyacinth flavour synthesis in a pervaporation membrane reactorcitations
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article
PVA composite catalytic membranes for hyacinth flavour synthesis in a pervaporation membrane reactor
Abstract
Composite catalytic membranes consisting of poly(vinyl alcohol) cross-linked with glutaraldehyde and H-USY zeolite dispersed into the polymeric matrix were prepared and used in the hyacinth flavour synthesis by acetalization of phenylacetaldehyde and glycerol. In order to study the effects of catalyst loading, polymer cross-linking and hydrophilic/hydrophobic balance in the catalytic behaviour of the prepared membranes, catalytic runs were performed in batch conditions and in a pervaparation assisted catalytic membrane reactor. It was found that polymer cross-linking strongly affects the membranes' sorption and transport properties which seem to improve with the increase of catalyst loading. Results also evidence that permeation in membrane reactor was well accomplished with good selectivity to water. The catalytic membranes were characterized by measurement of thickness, water contact angles and swelling degree as well as by Fourier transform infrared spectroscopy (FTIR), atomic force microscopy (AFM) and scanning electron microscopy (SEM). © 2014 Elsevier B.V. All rights reserved.