Patent ID: 6148745
Filing Date: 2000-11-21
Classification: F23C,F23M

Abstract:
Method for combustion of vanadium-containing fuels from petroleum refining, comprising the steps of:providing a combustion apparatus with a combustion area, a roof over the combustion area, a start burner arranged in the roof, a supply for a pulverized fuel-air mixture provided in the roof, a dust nozzle provided in the roof, and a top burner positioned above the combustion area, the top burner being constructed as a roof burner in the roof;supplying the vanadium-containing fuels to the top burner as the pulverized fuel-air mixture and to the combustion area by one of (a) on a secant to a cross-sectional surface of the combustion area and under an angle between 35 and 65.degree. to a longitudinal axis of the combustion area and (b) coaxially to the start burner;burning the pulverized fuel-air mixture in the combustion area with short burn-out times and with an adjustable ignition front to produce a flue gas and slag; anddischarging the flue gas and slag from the combustion area.