Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Nitrogen or nitrogenous component
Patent
1990-09-20
1992-02-11
Heller, Gregory A.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Nitrogen or nitrogenous component
423235, B01J 800, C01B 2100
Patent
active
050874314
ABSTRACT:
A method is described for decomposing cyanuric acid at temperatures of less than about 1000.degree. F., and the method comprises heating the cyanuric acid in the presence of a decomposition catalyst which is effective at below about 1000.degree. F. Examples of useful decomposition catalysts are zirconium, phosphorus and mixtures thereof. Preferably at least some of the zirconium or phosphorus is in the plus four oxidation state. A method also is described for reducing the nitrogen oxide content of gas streams which comprises contacting the gas streams containing nitrogen oxide with an amount of the gaseous decomposition product mixture obtained by decomposing cyanuric acid in the presence of a decomposition catalyst at a temperature of less than about 1000.degree. F.
REFERENCES:
patent: 3900554 (1975-08-01), Lyon
patent: 3914390 (1975-10-01), Kudo et al.
patent: 4208386 (1980-06-01), Arans et al.
patent: 4325924 (1982-04-01), Arani et al.
patent: 4335084 (1982-06-01), Brogan
patent: 4719092 (1988-01-01), Bowers
patent: 4731231 (1988-03-01), Perry
patent: 4743436 (1988-05-01), Lyon
patent: 4800068 (1989-01-01), Perry
patent: 4849192 (1989-07-01), Lyon
patent: 4851201 (1989-07-01), Heep et al.
patent: 4861567 (1989-08-01), Heap et al.
patent: 4908193 (1990-03-01), Perry
Okabe, Journal of Chemical Physics, vol. 9, p. 3, 3507-3514, Nov. 1970.
Ser. No. 746,963, Filed Aug. 19, 1991, Ralph J. Stone.
"Reducing NO.sub.x Emissions," Power, Sep. 1988, pp. S-1 to S-13.
R. A. Perry and D. L. Siebers, Nature, vol. 324, pp. 657-658.
"Post-Combustion Methods for Control of NO.sub.x Emissions" by H. S. Rosenberg, L. M. Curran, A. V. Slack, I. Ando, and J. H. Oxley, Prog. Energy Combust. Ssci., vol. 6, pp. 287-302.
Gardner-Chavis Ralph A.
May Michael P.
Heller Gregory A.
Molecular Technology Corporation
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