East Asia - Air Pollution Control and Coal-Fired Power Generation
AUTHOR: H N Soud, Z Wu
DATE: June 1998
Coal-fired power generation in East Asia is growing at a rapid rate. At the beginning of 1998, total coal-fired power generation capacity in the region was ~150 GWe. Combustion conditions used to generate this capacity differ greatly from one country to another. Environmental controls also vary considerably between the countries. In China (mainland), subcritical boilers continue to take the greater share of the market where capacity per unit exceeds 50 MWe. There are several small-scale, coal-fired FBC plants in operation throughout teh country. The emphasis in this report is on the larger power generating coal-fired plants and therefore the small FBC units are not considered. Environmental control systems are currently being demonstrated in China to determine which technology is most suitable for adoption in the future. In south korea, in more recent years, there has been a shift from subcritical conventional systems to standardised, modern, supercritical boilers. All new plants in Korea are fitted with low NOx burners, ESPs for particulate control and FGD systems. In Taiwan, a programme was initiated to fit and retrofit all large coal-fired units with low NOx burners and FGD. There is currently no emphasis on emissions control in Mongolia as the country continues to suffer from the disintegration of the Soviet Union. Advanced clean col technologies are under consideration in all the countries in the region. However their commercial application will be determined by the results from international demonstration and national investigations.