Abstract
Chinese energy is reliant on coal combustion, especially for power generation. But there are several challenges presented by this reliance, such as the significant air pollution in the northern and eastern regions or the shortage of good quality coals. The usage of low quality coals like high moisture lignite and high alkaline coals become more and more important. Due to the frequency emerging of haze condition from Beijing to Shanghai, the usage of coal become repugnant. However, there is not so much natural gas and oil reserved inside China. Therefore, the clean coal and ultra-low emission control especially multi-pollutant emission control become more and more important. In this plenary invited talk, the condition and challenge of coal combustion in China will be discussed. The upgrade of high moisture lignite from Inner Mongolia and Yunnan will be introduced. The alkaline releasing result from Xinjiang Zhundong coal during combustion process with LIBS (laser induced breakdown) on line measurement will be discussed. At last, the technology with pre-oxidization for simultaneous removal of SO_2, Hg and NO_x will be introduced, which has been used in the industry for ultra clean emission control.
