Particulate Control Handbook for Coal-Fired Plants
AUTHORS: Hermine Soud
DATE: July 1997
Emission standards to control particulate matter from coal combustion have been introduced in most countries throughout the world. In utility coal-fired power plants electrostatic precipitators (ESP) are the main technology used to control particulates. Although the popularity of fabric filters is growing, the growth is faster for use on industrial boilers rather than coal-fired power generating facilities except where 'more difficult to precipitate' coals are being burnt.
Cyclones are widely used on industrial boilers and to a lesser extent as pre-scrubbers to remove the coarser particles in larger plants. Wet particulate scrubbers are generally used to control particulate matter as well as SO2 emissions in a few coal-fired plants with most of these installations located in the USA. Development and testing of high temperature high pressure particulate control systems continues mainly in the USA, Europe and Japan.
There are numerous manufacturers and suppliers of particulate control technologies. In general, large corporations usually supply ESP, fabric filters and cyclones whilst the smaller manufacturers supply only one technology. This handbook provides details of both types of suppliers. It contains 25 ESP systems, 32 fabric filters, 22 flue gas conditioning systems, 10 inertial separators/cyclone manufacturers and 18 wet particulate scrubber suppliers. Some other equipment data such as filter media/bags, wire cages, insulator supplier details are also included. Addresses, contact names and other relevant information are listed with each technology available.