Method and apparatus for adjusting the ignition characteristics of a fuel, in particular for reducing harmful substance emissions from a combustion device

摘要

The invention relates to a method for adjusting the ignition characteristics of a fuel (3) using a unit having at least one dispersion zone (15), at least one oxidation zone and at least one conversion zone (10). In the method according to the invention, the fuel (3) is dispersed in a dispersion zone (15) comprising a dispersion structure (4), and in the oxidation zone (6) at least a part of the fuel is due to at least one oxidant. In the conversion zone (10), at least part of the dispersed fuel (3) and / or another supplied fuel is converted by heat and / or catalyst in the conversion zone (10) by being oxidized by at least one catalyst on the catalyst support. Is done. This process involves the molar ratio of oxygen contained in the oxidant (2) to the oxygen required for complete oxidation of the fuel (3) present, and / or the pressure and / or residence in the unit (1). The ignition characteristics of the fuel are adjusted according to time and / or temperature. In one important embodiment, it is envisaged that the adjustment of the ignition properties is adjusted so that harmful substance emissions, in particular NOx emissions and soot emissions, are reduced. The invention also relates to a device suitable for this.