Combustion – Process of combustion or burner operation – In a porous body or bed – e.g. – surface combustion – etc.
Patent
1992-03-24
1993-09-28
Dority, Carroll B.
Combustion
Process of combustion or burner operation
In a porous body or bed, e.g., surface combustion, etc.
431328, 60723, F23D 340
Patent
active
052482510
ABSTRACT:
This invention is a graded catalyst comprising palladium and also a partial combustion process in which the fuel is partially combusted using that catalyst. The catalyst utilizes a catalytic support structure suitable for high flow rates of combustible gas mixtures through it. The catalyst is situated on the support so that in the flowing gas stream a leading portion of the support has a higher combustion activity, such as by a higher concentration of catalytic metal, than has the trailing portion. The combination of graded catalyst and support provides a low "light off" temperature for the combustible gas (only a low preheat temperature is needed to cause the combustion reaction to begin) and yet does not cause "hot spots" to occur because of excess activity. The combustion gas produced by the catalytic process may be at a temperature below the adiabatic combustive temperature, may be used at that temperature, or fed to other combustion stages for further use in a gas turbine, furnace, boiler, or the like.
REFERENCES:
patent: 3920583 (1975-11-01), Pugh
patent: 3956188 (1976-05-01), Hindin et al.
patent: 3966391 (1976-06-01), Hindin et al.
patent: 3969082 (1976-07-01), Cairns et al.
patent: 3970435 (1976-07-01), Schultz et al.
patent: 4008037 (1977-02-01), Hindin et al.
patent: 4019969 (1977-04-01), Golebiowski et al.
patent: 4088435 (1978-05-01), Hindin et al.
patent: 4279782 (1981-07-01), Chapman et al.
patent: 4287856 (1981-09-01), Enga
patent: 4318828 (1982-03-01), Chapman
patent: 4331631 (1982-05-01), Chapman et al.
patent: 4366668 (1982-01-01), Madgavkar et al.
patent: 4414023 (1983-11-01), Aggen et al.
patent: 4448756 (1984-05-01), Hammerle et al.
patent: 4521532 (1985-06-01), Cho
patent: 4601999 (1986-07-01), Retallick et al.
patent: 4673663 (1987-06-01), Magnier
patent: 4731989 (1988-03-01), Furuya et al.
patent: 4742038 (1988-05-01), Matsumoto
patent: 4752599 (1988-06-01), Nakamura et al.
patent: 4784984 (1988-11-01), Yamanaka et al.
patent: 4831009 (1989-05-01), Retallick
patent: 4870824 (1989-10-01), Young et al.
patent: 4893465 (1990-01-01), Farrauto et al.
patent: 5010051 (1991-04-01), Rudy
patent: 5026611 (1991-06-01), Usui
Pennline, Henry W., Richard R. Schehl, and William P. Haynes, Operation of a Tube Wall Methanation Reactor, Ind. Eng. Chem. Process Des. Dev.: vol. 18, No. 1, 1979.
L. Louis Hegedus, "Temperature Excursions in Catalytic Monolitis" AlChE Journal, Sep. 1975, vol. 21, No. 5, 849-853.
Kee et al., "The Chemkin Thermodynamic Data Base", Sandia National Laboratory Report No. SAND 87-8215 Apr., 1987, 5 pages.
Kubaschewski et al, "Metallurgical Thermo-Chemistry", International Series on Materials Science and Technology, 5th Edition, vol. 24, 382 (date unknown).
Hayashi et al., "Performance Characteristics of Gas Turbine Combustion Catalyst Under High Pressure", Gas Turbine Society of Japan, 1990, 18-69, 55.
Dalla Betta Ralph A.
Shoji Toru
Tsurumi Kazunori
Catalytica Inc.
Dority Carroll B.
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