New achievements of development of CFBC boilers in China

摘要

Coal is the main energy source of China. The property and quality of coals of different regions of China may differ from each other greatly. In some region, coal of high ash content and high sulfur content has to be used for some cogenerationpower plants. To reduce the sulfur dioxide emission, and to utilize the ashes from coal, CFBC boilers are preferred. However, CFBC boilers with bulky cyclone separators are too expensive for those smaller power plants to afford. Therefore, CFBC boilerswith Chinese features, without the bulky cyclone separators, are developed by different institutions. Recently the progress of the development of these boilers is very optimistic. The new achievements of different designs are introduced below.