Catalytic combustion process and system with wall heat loss cont

Details Catalytic combustion process and system with wall heat loss cont Catalytic combustion process and system with wall heat loss cont

1982-05-24

1984-07-10

Dority, Jr., Carroll B.

Combustion

Process of combustion or burner operation

In a porous body or bed, e.g., surface combustion, etc.

431170, 422199, F23D 340

Patent

active

044591268

ABSTRACT:
A process and system of operation for combusting nitrogen-containing fuels with resulting low NO.sub.x emissions. A fuel-rich mixture of the fuel is combusted in a catalytic bed which is carried by a support structure. Active or passive means are provided for limiting transfer of heat from the bed into the support structure for minimizing formation of NO.sub.x during combustion. The active means for limiting the heat transfer includes, in different embodiments, electrical resistance back heating, induction back heating, exhaust gas back heating, and combustion fired back heating. The passive means for limiting the heat transfer includes, in different embodiments, a body of heat insulating material between the bed and support structure, or the insulating effect of the outer cells of the bed within a recess in the support structure.

REFERENCES:
patent: 3421859 (1969-01-01), Kruggel
patent: 3801289 (1974-04-01), Wiley
patent: 3886739 (1975-06-01), Lee
patent: 4154568 (1979-05-01), Kendall et al.
patent: 4230443 (1980-10-01), Berg et al.
patent: 4354821 (1982-10-01), Kesselring et al.
patent: 4355003 (1982-10-01), Grobel

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