Catalytic effect of biomass ash on CO, CH\+v\4\-v\ and HCN oxidation under fluidised bed combustor conditions

In fluidised bed combustion heterogeneous reactions catalysed by the bed material, CaO, and char are significant for the emission levels for instance of NO, N(sub2)O and CO. In this paper, the effect of different ashes from spruce wood, peat, and for comparison, bituminous coal, on the oxidation of...

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Published in:Fuel (Guildford) 2002-04, Vol.81 (6), p.711-717
Main Authors: Loffler, G, Wargadalam, V J, Winter, F
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Wargadalam, V J
Winter, F
description In fluidised bed combustion heterogeneous reactions catalysed by the bed material, CaO, and char are significant for the emission levels for instance of NO, N(sub2)O and CO. In this paper, the effect of different ashes from spruce wood, peat, and for comparison, bituminous coal, on the oxidation of CH(sub4), CO, and HCN was studied. The different ashes were shown to have a strong catalytic activity for the oxidation process. In HCN oxidation, the selectivity towards NO is high, whereas very little N(sub2)O is formed. The activity of the ashes was found to be strongly dependent on the fuel, which may be explained by their composition. (Original abstract - amended)
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title Catalytic effect of biomass ash on CO, CH\+v\4\-v\ and HCN oxidation under fluidised bed combustor conditions
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