METHOD AND SYSTEM FOR COMBUSTING HYDROCARBON FUELS WITH LOW POLLUTANT EMISSIONS

摘要

A method of burning a hydrocarbon fuel (30) comprising mixing said fuel (30) with a first air flow (24), to form an air / fuel mixture (32), the equivalence ratio of which is is greater than 1 and partial oxidation of the fuel by contacting it with an oxidation catalyst (33), to produce a heat of reaction and a partial oxidation product stream (34). The partial oxidation product stream (34) is mixed with a second air stream (26) and fully combusted in a two-stage gasification main burner, under conditions in which large amounts of thermal NOx are not present to produce an effluent gas stream (38), which produces an effluent gas stream (38) containing reduced amounts of thermal and instantaneous NOx. Device for the combustion of a hydrocarbon fuel comprising, in combination, means for mixing the fuel with a first air flow, a catalytic oxidation stage containing an oxidation catalyst, means for mixing the flow of partial oxidation product with a second air stream and a two-stage gasification main burner capable of complete combustion of the partial oxidation product stream.