Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Nitrogen or nitrogenous component
Patent
1985-08-05
1986-09-16
Doll, John
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Nitrogen or nitrogenous component
423243, 556133, 556148, A47B 4300, A47B 4800, C01B 1700, C01B 2100
Patent
active
046121757
ABSTRACT:
A method of simultaneously removing SO.sub.2 and NO from oxygen-containing flue gases resulting from the combustion of carbonaceous material by contacting the flue gas with an aqueous scrubber solution containing an aqueous sulfur dioxide sorbent and an active metal chelating agent which promotes a reaction between dissolved SO.sub.2 and dissolved NO to form hydroxylamine N-sulfonates. The hydroxylamine sulfonates are then separated from the scrubber solution which is recycled.
REFERENCES:
patent: 3681416 (1972-08-01), Miller et al.
patent: 4079118 (1978-03-01), Gorgi
patent: 4222991 (1980-09-01), Hass
patent: 4331639 (1982-05-01), Hass et al.
"Removal of Nitrogen Oxides with Aqueous Solutions of Inorganic & Organic Reagents", H. Kobayashi et al., pp. 190-192, Feb. 1977.
"Absorption of Dilute Nitric Monoxide in Aqueous Solutions of Fe(II)EDTA and Mixed Solutions of Fe(II)EDTA and Na.sub.2 SO.sub.3 ", M. Teramoto et al., Jun. 1978.
"Identification of Species in a Wet Flue Gas Desulfurization and Denitrification System by Laser Raman Spectroscopy", D. Littlejohn et al., May 1984.
"Effects of Metal Chelates on Wet Flue Gas Scrubbing Chemistry", S. Chang et al., pp. 649-653, Nov. 1983.
"Reduction of Oxides of Nitrogen in Vent Gases", H. R. L. Streight, Feb. 1958.
"Absorption of Nitrogen Oxides into Water", H. Komiyam et al., pp. 154-161, 1980.
Advanced Inorganic Chemistry, F. A. Cotton et al., p. 712, 1962.
"Flue Gas Desulfurization", L. Brewer (ed.), p. 146, Nov. 1980.
"Sulfur Dioxide Transport Through Aqueous Solutions: Part 1., Theory", D. L. Roberts et al., pp. 593-610, Jul. 1980.
"Kinetics of the Formation of Hydroxylamine Disulfonate by Reaction of Nitrite with Sulfites", S. B. Oblath et al., pp. 1017-1021, Aug. 1981.
Doctor Richard D.
Harkness John B. L.
Wingender Ronald J.
Churm Arthur A.
Doll John
Freeman Lori S.
Hightower Judson R.
The United States of America as represented by the United States
LandOfFree
Flue gas desulfurization/denitrification using metal-chelate add does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flue gas desulfurization/denitrification using metal-chelate add, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flue gas desulfurization/denitrification using metal-chelate add will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1994534