초록 ▼

Combustion of the carbonaceous fuels such as fuel oil may be carried out advantageously in the presence of an oxidation catalyst body. Under suitable operating conditions the combustion can be effected at high rates of energy release for a catalyst and combustor of a given size, producing an effluen

Combustion of the carbonaceous fuels such as fuel oil may be carried out advantageously in the presence of an oxidation catalyst body. Under suitable operating conditions the combustion can be effected at high rates of energy release for a catalyst and combustor of a given size, producing an effluent substantially free of pollutants. However, for a given combustor installation it may be desirable at times to utilize a thermal burner, associated with the catalyst arrangement, which is disposed for directing jets of burning gaseous fuel such as natural gas from a multiplicity of points just down-stream of the catalyst. Thus combustion of the gaseous fuel in such jets is obtained substantially throughout a cross section of the downstream zone through which catalyst effluent passes. When a fuel-air mixture is being fed to the catalyst simultaneously with such supplying of gaseous fuel, the thermal burner preferably is arranged to effect coalescing of the jets of burning gaseous fuel and intermixing thereof with substantially all of the effluent from the catalyst. Such intermixing may serve to assist the combustion of any fuel which passes the catalyst without complete combustion during warm-up.

대표청구항 ▼

Combustion apparatus, comprising: a catalyst body for combusting carbonaceous fuel passing therethrough; feed means for supplying a mixture of combustion air and carbonaceous fuel to said catalyst body for flow therethrough to provide a catalyst effluent traversing a downstream zone adjacent to and

Combustion apparatus, comprising: a catalyst body for combusting carbonaceous fuel passing therethrough; feed means for supplying a mixture of combustion air and carbonaceous fuel to said catalyst body for flow therethrough to provide a catalyst effluent traversing a downstream zone adjacent to and downstream of said catalyst body; thermal burner means disposed for directing jets of burning gaseous fuel into said downstream zone from a multiplicity of points distributed within or alongside said downstream zone to obtain combustion of said gaseous fuel in said jets substantially throughout a cross section of said downstream zone; and burner supply means for supplying gaseous fuel when desired to said burner means for obtaining said combustion in said jets substantially throughout a cross section of said downstream zone.