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Lookup NU author(s): Dr Alan Thursfield, Professor Ian Metcalfe
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Membrane catalytic combustion (MCC) is an environmentally friendly technique for heat and power generation from methane. This work demonstrates the performances of a MCC perovskite hollow fibre membrane reactor for the catalytic combustion of methane. The ionic-electronic La0.6Sr0.4Co0.2Fe0.8O3-α (LSCF6428) mixed conductor, in the form of an oxygen-permeable hollow fibre membrane, has been prepared successfully by means of a phase-inversion spinning/sintering technique. For this process polyethersulfone (PESf) was used as a binder, N-methyl-2-pyrrollidone (NMP) as solvent and polyvinylpyrrolidone (PVP, K16-18) as an additive. With the prepared LSCF6428 hollow fibre membranes packed with catalyst, hollow fibre membrane reactors (HFMRs) have been assembled to perform the catalytic combustion of methane. A simple mathematical model that combines the local oxygen permeation rate with approximate catalytic reaction kinetics has been developed and can be used to predict the performance of the HFMRs for methane combustion. The effects of operating temperature and methane and air feed flow rates on the performance of the HFMR have been investigated both experimentally and theoretically. Both the methane conversion and oxygen permeation rate can be improved by means of coating platinum on the air side of the hollow fibre membranes. © 2007 Elsevier B.V. All rights reserved.
Author(s): Tan X, Li K, Thursfield A, Metcalfe IS
Publication type: Article
Publication status: Published
Journal: Catalysis Today
Year: 2008
Volume: 131
Issue: 1-4
Pages: 292-304
ISSN (print): 0920-5861
ISSN (electronic): 1873-4308
Publisher: Elsevier BV
URL: http://dx.doi.org/10.1016/j.cattod.2007.10.081
DOI: 10.1016/j.cattod.2007.10.081
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