Input control method and means for nitrogen oxide removal

Details Input control method and means for nitrogen oxide removal Input control method and means for nitrogen oxide removal

1980-03-07

1981-11-24

Serwin, Ronald

Chemistry: physical processes

Physical processes

Crystallization

23230A, 364500, 422 62, 422111, 423239, 423235, G05D 1102

Patent

active

043022057

ABSTRACT:
Nitrogen oxide contained in the flue-gas from a heating unit is removed in a nitrogen oxide removal unit by injection of nitrogen oxide removing agent in an amount determined by the amount of the nitrogen oxide contained in the flue-gas. Such amount of nitrogen oxide contained in the flue-gas is detected, on the one hand, by the estimation obtained through calculation using factors such as rate of supply of fuel to the heating unit and concentration of oxygen in the flue-gas, and on the other hand, by direct measurement, for a fail-safe system.

REFERENCES:
patent: 3656911 (1972-04-01), Hobbs
patent: 4069413 (1978-01-01), Rutledge et al.
patent: 4094959 (1978-06-01), Ball et al.
patent: 4188190 (1980-02-01), Muraki et al.
Savas, "Computer Control of Industrial Processes," McGraw-Hill, (1965), pp. 20-27, 52 and 53.

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