MINERAL ADDITIVE BLEND COMPOSITIONS AND METHODS FOR OPERATING COMBUSTORS FOR AVOIDING PROBLEMS SUCH AS AGGLOMERATION DEPOSITION CORROSION AND REDUCING EMISSIONS

摘要

Mineral additive blend compositions and a method for operating a furnace are provided in order to avoid combustion problems such as agglomeration deposition corrosion and reducing emissions. A method for operating a furnace such as a fluidized bed reactor pulverized fuel combustor grate combustor includes introducing fuel and a mineral additive blend comprising a clay and a functional mineral into the furnace. The method further includes heating at least a portion of the inorganic compound containing material and clay such that at least a portion of the clay is at least partially calcined and the at least partially calcined clay and functional mineral adsorbs at least a portion of the inorganic volatile compounds present in the furnace and react with the ash produced during fuel combustion increasing its refractoriness. The method further includes removing at least a portion of the at least partially calcined clay and adsorbed inorganic compounds from the furnace.