Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Nitrogen or nitrogenous component
Patent
1988-03-15
1989-12-12
Heller, Gregory A.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Nitrogen or nitrogenous component
423239, C01B 2100
Patent
active
048866504
ABSTRACT:
An arrangement for reducing the NO content of a gas stream comprises contacting the gas stream with HNCO at a temperature effective for heat induced decomposition of HNCO and for resultant lowering of the NO content of the gas stream. Preferably, the HNCO is generated by sublimation of cyanuric acid and CO or other H-atom generating species is also present or added to the gas stream.
REFERENCES:
patent: 3900554 (1975-08-01), Lyon
patent: 4731231 (1988-03-01), Perry
Back et al., Can. J. Chem. 46, 531 (1968).
Perry Journal of Chemical Physics 82, 5485 (1985).
JP 54-28771 (Translation).
R. A. Perry & D. L. Sibers, "Rapid Reduction of Nitrogen Oxides in Exhaust Gas Streams," Nature, vol. 324, No. 6097, pp. 657-658, Dec. 18, 1986.
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