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FORMERLY KNOWN AS CLEAN AIR: INTERNATIONAL JOURNAL ON ENERGY FOR A CLEAN ENVIRONMENT
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ISSN: 2150-3621 Print
ISSN: 2150-363X Online
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You can order a single issue or an individual article, as well as view the table of contents or article abstract by clicking on the volume number, then the issue number in the right sidebar.
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Institutional price: $474.00
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Online subscription
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DOI: 10.1615/InterJEnerCleanEnv.v4.i1
Pages: 74
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DOI: 10.1615/InterJEnerCleanEnv.v4.i1.30
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Article price - $35.00 |
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N2O REDUCTION IN A BUBBLING FLUIDIZED BED REACTOR BY INJECTION OF HYDROCARBON FUELS
Hao Liu
Department of Fuel & Energy, the University of Leeds, Leeds LS2 9JT, UK
Bernard M. Gibbs
Department of Fuel & Energy, the University of Leeds, Leeds LS2 9JT, UK
ABSTRACT
N2O reduction by the injection of hydrocarbon fuels (C2H6 and C3H8) has been experimentally investigated in a bench-scale, electrically heated, bubbling fluidized bed stainless steel reactor. Experimental results show that the injection of a hydrocarbon fuel is a very effective method to reduce N2O and up to 90% N2O reduction has been achieved for each fuel. From the thermal input point of view, C3H8 is slightly more effective than C2H6 in reducing N2O. Under otherwise identical conditions, the presence of the bed material (sand) in the reactor enhances the N2O reduction achieved by the injection of hydrocarbon fuels. Halving the residence time from 3 s to 1.5 s has little influence on the N2O reduction achieved both with and without the presence of the bed material in the reactor. Gas-phase modeling (using a detailed combustion/nitrogen mechanism, SENKIN and CHEMKIN programs) of N2O reduction by the injection of C2H6 and C3H8 indicates that N2O decomposition is not the dominant N2O reduction mechanism compared with the radicals’ reactions. Predicted N2O reductions are also in good agreement with the experimental results.
pages 16
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Volume 8, 2007 Volume 7, 2006 Volume 6, 2005 Volume 5, 2004 Volume 4, 2003
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