Abstract:

Indonesia coal is one of the important burning coal for thermal power plants in China coastal region. It is often blended with other coal for burning. In this paper, a thermogravimetric analysis was performed to investigate the burning process of Indonesia coal blended with other three kinds of bituminous coal at different blending ratios, and the activation energies of these kinds of blended coal were compared to reveal the corresponding ignition characte- ristics. Experimental results indicate that Indonesia coal is easy to ignite due to its low activation energy and may improve the ignition characteristics of the blended bituminous coal with poor ignition characteristic, and that, when it blended with other coal with similar ignition characteristics, the ignition characteristic is similar to that of the coal with low activation energy.

Key words: Indonesia coal, blended coal, thermogravimetry, ignition characteristic