Approximately 20 years ago, the National Coal Board, the British Coal Utilization Research Association, and the Central Electricity Generating Board, of the United Kingdom, in a joint venture, established a Research and Development Program covering Fluidized Bed Combustion Coal-Fired Boiler equipment. The primary objective of the program was to develop technology for the firing of high sulphur coal in a fluidized bed combustion process to generate steam in an environmentally acceptable manner. During the 1960’s, the accomplishments were significant, with the technology developed clearly indicating consideration should be given to boilers utilizing a fluidized bed combustion process for firing coal as well as other fuels.

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