Abstract
In this paper, Huadian oil shale from Jilin Province of China was selected as the object of study. Firstly, the ignition temperature, complete combustion temperature, maximum mass loss rate, flammability index C and comprehensive combustion characteristic index S during the separate combustion of oil shale was measured , as well as during the combustion of oil shale mixed with coal, by using the thermo-gravimetric analytical method. Then, the impact of blending ratio on the combustion characteristic parameter was discussed, and conducted modeling for the oil shale blending combustion system was established with the steady-state simulation software program Aspen Plus. Finally, we obtained the exhaust gas temperature, volume flow of gases such as CO, CO2 and SO2, as well as their impacts on the operating conditions of the boiler during the mixing combustion under different excess air coefficients.
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