Clean Air: International Journal on Energy for a Clean Environment

ISSN for PRINT: 1561-4417

For Online Access

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2003, Volume4

Issue 1

74 pages

DOI: 10.1615/InterJEnerCleanEnv.v4.i1

Issue price - $108.00

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

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.

DOI: 10.1615/InterJEnerCleanEnv.v4.i1.30 Download article, 16 pages

Article price - $35.00

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