Fludised Bed Combustion (FBC) technology uses coal washery rejects / fines for power supply - An eco-friendly system eases pressure of disposal problem.
In developing countries, most of energy is generated by coal fired power plants. For quality purpose, coals are washed. Disposal of huge rejects and fines obtained from coal washery are a problem everywhere. Fludised Bed Combustion (FBD) technology as the renewable source of energy generates eco-friendly power supply using washery rejects and washery fines.
The objectives of coal-fired power generation is to have (1) power generation at a economical cost; (2) to improve thermal efficiency; (3) to comply with current and future environmental standards. Many of these objectives may be gained by the FBC technology based plants, with incorporation of supercritical steam cycles together with some form of flue gas desulphurisation and low NOx measures.
Advanced FBC system represents significant advantages over conventional coal combustion system. This technology uses a more compact boiler and very high rate of heat transfer to the tube surfaces in the bubbling bed; thus, level of NOx and SOx generated is much less, which is a good indication of pollution control. Generation of particulates is also less as compare to the conventional system.
Above all, it can utilize effectively coal washery rejects, coal washery fines, lignite etc. Utilizing coal washery rejects and coal washery fines means easing pressure for disposal problem of these materials.