Circulating fluidized bed combustor definition

Circulating fluidized bed combustor means, for purposes of Part 217, a fluidized bed combustor in which the majority of the fluidized bed material is carried out of the primary combustion zone and is transported back to the primary zone through a recirculation loop.
Circulating fluidized bed combustor means a fluidized bed combustor in which the majority of the fluidized bed mate- rial is carried out of the primary combustion zone and is trans- ported back to the primary zone through a recirculation loop.