期刊
CHEMICAL ENGINEERING RESEARCH & DESIGN
卷 90, 期 12, 页码 2338-2345出版社
INST CHEMICAL ENGINEERS
DOI: 10.1016/j.cherd.2012.05.016
关键词
Composite membrane; Gas separation; Nanoparticles; Carbon; Olefin purification
资金
- Portuguese Foundation for Science and Technology (FCT) [SFRH/BD/24768/2005, SFRH/BD/61898/2009]
- FCT [SFRH/BPD/65377/2009, POCTI/EQU/59344/2004, POCTI/EQU/59345/2004, REEQ/1062/CTM/2005, REDE/1512/RME/2005]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/24768/2005, SFRH/BD/61898/2009] Funding Source: FCT
Phenolic resins loaded with two different inorganic fillers (boehmite (gamma-AlO(OH)) and silver (Ag)) were used to prepare composite carbon membranes. Polymer solutions containing gamma-AlO(OH) and AgNO3 were prepared and the effect of Ag on the transport properties of the composite membrane was evaluated. The polymer solutions were coated on alpha-Al2O3 tubes and carbonized in a single dipping-drying-pyrolysis step. After pyrolysis at 550 degrees C, gamma-AlO(OH) yielded gamma-Al2O3, and Ag agglomerated forming spherical nanoparticles of 30 nm in diameter. Ag loading enhanced the carbon membrane performance for several gas pairs of interest, especially for C3H6/C3H8 separation, where the C3H6/C3H8 permselectivity increased from a maximum of 15 to 38. (c) 2012 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
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