The de-NOx potential of coal and of dried and pelletized sewage sludge, a waste-derived fuel candidate for cofiring with coal, is assessed. The experimental procedure is based on operation of a bench scale fluidized bed reactor where NO-doped nitrogen is contacted with batches of the fuel. A second type of experiment has been purposely designed to assess the loss of reactivity of chars toward gasification by NOx as char is heat-treated for pre-set times at temperatures typical of fluidized bed combustion. A simple phenomenological model is developed to shed light on the basic features of the interaction between heterogeneous char-NOx reaction and thermal annealing of the char.
CITATION STYLE
Salatino, P., Solimene, R., & Chirone, R. (2009). Nitric oxide reduction over sewage sludge and coal chars at conditions relevant to staged fluidized bed combustion. In Proceedings of the 20th International Conference on Fluidized Bed Combustion (pp. 947–952). SpringerOpen. https://doi.org/10.1007/978-3-642-02682-9_147
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