Method for the combustion of vanadium-containing fuels
AssigneesLoesche GmbH, Walter Brinkmann GmbH
InventorsHolger Wulfert, Andre Michael Baetz, Klaus Goerner, Friedrich Schmaus
Life of this patent
Estimating the term…
Abstract
Method for the combustion of vanadium-containing fuels that makes use of the extremely high reactivity of the vanadium-containing fuels for combustion in a dust furnace. To avoid disadvantageous slag caking in a combustion area and in particular in the vicinity of the feed nozzles, e.g. for the pulverized fuel-air mixture and for combustion air, in a dust furnace, a top burner is placed in a roof of a combustion area and at least open dust nozzel is so positioned for the supply of the pulverized fuel-air mixture that a return flow of liquid slag particles to the top burner is prevented.
Claims18
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;
- and
- discharging the flue gas and slag from the combustion area.
Dependencies are inferred from the claim text.