Method of decreasing nitrogen oxides in combustion device which

Details Method of decreasing nitrogen oxides in combustion device which Method of decreasing nitrogen oxides in combustion device which

1992-09-10

1995-08-15

Price, Carl D.

Combustion

Process of combustion or burner operation

Feeding flame modifying additive

431 2, 431 7, 60517, F23J 700

Patent

active

054414016

ABSTRACT:
An apparatus for decreasing nitrogen oxides in a combustion device of Stirling engine which performs continuous combustion includes a combustion chamber, means for supplying the combustion chamber with fuel and air, an exhaust passageway for discharging exhaust gas produced by combustion in the combustion chamber, a catalytic unit arranged in the exhaust passageway for purging toxic components contained in the exhaust gas discharged, and hydrogen supply means for supplying hydrogen gas to the exhaust gas which enters the catalytic unit. The hydrogen gas is supplied to the combustion exhaust gas which has entered the catalytic unit, and the combustion exhaust gas is then catalytically reduced in an environment of a comparatively low temperatures of less than 250.degree. C., whereby the nitrogen oxides in the exhaust gas are decreased.

REFERENCES:
patent: 3699218 (1972-10-01), Smith et al.
patent: 3719749 (1973-03-01), Smith et al.
patent: 3826810 (1974-07-01), Lawson
patent: 3986350 (1976-10-01), Schmidt
"Characteristics and Applications of Solid Polymer Electrolyte Technology", Hiroyasu Takenaka, GS news 46 (1) (1987).
Japanese Text, pp. 56-65.sup.1.

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