In the current overview paper, various issues related to the combustion of
agricultural residues are discussed. Attention has been given to the proble
ms associated with the properties of the residues such as low bulk density,
low ash melting points, high volatile matter contents and the presence of
nitrogen, sulfur, chlorine and sometimes high moisture contents. Consequent
ly the issues discussed include densification, the combustion mechanisms of
agricultural residues, problems of low melting point of ash such as agglom
eration and fouling, emissions and co-combustion. Further, design considera
tions of facilities for the combustion of agricultural residues are discuss
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