Catalysis

Details Catalysis Catalysis

F - Mech Eng,Light,Heat,Weapons

02

C

60/170

F02C 3/14 (2006.01) F23R 3/40 (2006.01)

Patent

CA 1107517

ABSTRACT OF THE DISCLOSURE A novel gas turbine engine is provided herein having as an essen- tial component thereof, a catalytic combustor. The catalytic combustor comprises: (a) a pilot burner adapted to consume not more than 5% of the total fuel consumption of the engine at full power; (b) a combining cham- ber for combining and mixing effluent hot gases from the pilot burner with additional hot compressed air at a pressure within the range 1 - 20 atmos- pheres delivered from a compressor turbine, the chamber having an inlet to receive the effluent hot gases and the hot compressed air, and an exit to discharge therefrom the combined hot gases; (c) an injector capable, under full power conditions, of injecting a major portion of the total fuel re- quirement directly into the combined hot gases leaving the chamber; and (d) a thermally stable and oxidation-resistant metallic monolith containing a multiplicity of flow paths or channels whose surfaces possess catalytic activity such that catalytic combustion of combustible gases and injected fuel may take place, the walls of the metallic monolith possessing a thickness within the range 0.002 to 0.004 inch. By this invention, cataly- tic oxidation of a major proportion of the fuel takes place and produces a considerable reduction in the quantity of pollutant present in the ex- haust gases.

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