Ash Characteristics Analysis during Co-Combustion of Biomass and Coal

Abstract:

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The ash characteristics is closely related to the fuel compositions, and chemical reactions happened between the compounds of ash during co-combustion of biomass and coal. Through the phase compositions analysis of ash from co-combustion of biomass and coal, the results show that KCl(g) mainly reacts with aluminosilicates to form potassium-aluminosilicates and part of KCl(g) also can be sulfated by SO2 during co-combustion. In the fuel, CaO and MgO may react with aluminosilicates to form CaAl2Si2O8 and Mg3Al2Si3O12 with low melting temperature, which can reduce the content of potassium-aluminosilicates and drop the ash melting point temperature.

Info:

Periodical:

Edited by:

Han Zhao

Pages:

838-841

DOI:

10.4028/www.scientific.net/AMM.130-134.838

Citation:

S. F. Bian et al., "Ash Characteristics Analysis during Co-Combustion of Biomass and Coal", Applied Mechanics and Materials, Vols. 130-134, pp. 838-841, 2012

Online since:

October 2011

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Price:

$35.00

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