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Polymer Derived Ceramic Membranes for Gas Separation

Jüttke, Yvonne and Richter, Hannes and Voigt, Ingolf and Prasad, Ravi M. and Bazarjani, Mahdi S. and Gurlo, Aleksander and Riedel, Ralf (2013):
Polymer Derived Ceramic Membranes for Gas Separation.
In: Chemical Engineering Transactions , AIDIC, pp. 1891-1896, 32, ISSN 1974-9791,
[Article]

Abstract

Ceramic membranes based on polymer derived ceramics (PDCs) like silicon oxycarbide (SiOC) and silicon carbonitride (SiCN) offer an attractive combination of physical and chemical properties like chemical inertia, high mechanical strength and high temperature resistance. SiOC and SiCN membranes were deposited as thin layers by coating on top of tubular asymmetric porous ceramic substrates starting from a polymeric precursor solution followed by crosslinking and pyrolysis above 600 °C in inert atmosphere. High ideal permselectivities were achieved at 300 °C. SiOC membrane showed nearly ten times higher permeances of hydrogen to carbon dioxide and therefore possessed molecular sieving properties in separation of H2/CO2. A comparable SiCN membrane had a very low H2/CO2 ideal permselectivity but promising results for the other ideal permselectivities.

Item Type: Article
Erschienen: 2013
Creators: Jüttke, Yvonne and Richter, Hannes and Voigt, Ingolf and Prasad, Ravi M. and Bazarjani, Mahdi S. and Gurlo, Aleksander and Riedel, Ralf
Title: Polymer Derived Ceramic Membranes for Gas Separation
Language: English
Abstract:

Ceramic membranes based on polymer derived ceramics (PDCs) like silicon oxycarbide (SiOC) and silicon carbonitride (SiCN) offer an attractive combination of physical and chemical properties like chemical inertia, high mechanical strength and high temperature resistance. SiOC and SiCN membranes were deposited as thin layers by coating on top of tubular asymmetric porous ceramic substrates starting from a polymeric precursor solution followed by crosslinking and pyrolysis above 600 °C in inert atmosphere. High ideal permselectivities were achieved at 300 °C. SiOC membrane showed nearly ten times higher permeances of hydrogen to carbon dioxide and therefore possessed molecular sieving properties in separation of H2/CO2. A comparable SiCN membrane had a very low H2/CO2 ideal permselectivity but promising results for the other ideal permselectivities.

Journal or Publication Title: Chemical Engineering Transactions
Volume: 32
Publisher: AIDIC
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 11 Jun 2014 10:49
Funders: The authors thank the Deutsche Forschungsgemeinschaft (DFG) for the financial support within the framework of the DFG program “Adaptive surfaces for high temperature applications“ (SPP 1299).
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