Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Halogenous component
Patent
1995-10-24
1997-03-04
Lewis, Michael
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Halogenous component
423240R, 423210, 4232452, 4232453, 110345, 588205, B01D 5364, B01D 5368, B01D 5370, F23G 500
Patent
active
056076541
ABSTRACT:
A method and apparatus for minimizing the environmental release of acids and toxic organic compounds from a waste incinerator-air pollution control train. The apparatus comprises an incinerator, a gas cooling means such as a waste heat boiler or quench chamber, a means for the partial removal of acid gases and dioxins by contact with either finely-divided alkaline solids or alternatively, by an alkaline solution in a spray drier-absorber, a dry solids collection means such as a fabric filter or electrostatic precipitator, a wet scrubber means for residual metal, dioxin/acid gas removal and an induced draft fan. In the method of this invention, the final wet scrubber stage operates without alkaline neutralization, but under scrubber acid concentrations and operating conditions that provide an exhaust gas within compliance limits of emission regulations. The contaminated liquor blowdown from the wet scrubber, which contains toxic organics and acids, is recycled back into the incinerator. The aqueous acid liquor blown down to the incineration is vaporized therein, most of the toxic organic content of the liquid is destroyed by the re-incineration, and the regenerated acid gases are largely removed by the first dry scrubbing stage.
REFERENCES:
patent: 3601070 (1971-08-01), Lambiris
patent: 4019444 (1977-04-01), Kleeberg et al.
patent: 4061476 (1977-12-01), Holter et al.
patent: 4196173 (1980-04-01), deJong et al.
patent: 4210428 (1980-07-01), Schneider et al.
patent: 4246242 (1981-01-01), Butler et al.
patent: 4251236 (1981-02-01), Fattinger et al.
patent: 4273747 (1981-06-01), Rasmussen
patent: 4274842 (1981-06-01), Lindau
patent: 4312646 (1982-01-01), Fattinger et al.
patent: 4317806 (1982-03-01), Leisegang
patent: 4355013 (1982-10-01), Bechthold et al.
patent: 4617180 (1986-10-01), Vogg
patent: 4619608 (1986-10-01), McIntyre et al.
patent: 4620492 (1986-11-01), Vogg et al.
patent: 4708853 (1987-11-01), Matviya et al.
patent: 4729882 (1988-03-01), Ide et al.
patent: 4795619 (1989-01-01), Lerner
patent: 4844875 (1989-07-01), Ettehadieh
patent: 4865828 (1989-09-01), Lerner
patent: 4889698 (1989-12-01), Moller et al.
patent: 5002743 (1991-03-01), Kokkunen et al.
patent: 5009871 (1991-04-01), Higuchi et al.
patent: 5018457 (1991-05-01), Brady et al.
patent: 5035188 (1991-07-01), Johnson et al.
patent: 5209912 (1993-05-01), Suchenwirth
patent: 5238665 (1993-08-01), Lerner
patent: 5352420 (1994-10-01), Kurzinger et al.
Kroll, P. J., et al. "Application of Dry Flue Gas Scrubbing to Hazardous Waste Incineration". J. Air Pollution Control Assn., (1986), pp. 1258-1263.
Muzio, L. J., et al. "Assessment of Dry Sorbent Emission Control Technologies", J. Air Pollution Control Assn., (1987), pp. 642-654.
Product Information Bulletin No. 5108, Hydrodarco, 1991 American Norit Company.
"Mercury Chemistry in Simulated Flue Gases Related to Waste In cineration Conditions", Hall et al., Env. Science & Tech., vol. 24 pp. 108-111 (1990).
"Gas Dehydration and Purification", Gas Purification, Third Ed., Kohl et al. (1979).
"Mechanism of Chlorination of Aromatic Compounds Adsorbed on The Surface of Fly Ash Form Municipal Incinerators", Hoffman et al., Environ. Sci. Technol., pp. 1625-1641, vol. 24, No. 11, 1990.
"Chemistry", Chemical Kinetics [15.7], Bailar et al., 1978.
Industrial Minerals and Rocks, Chapter 6, pp. 93-99, Aimme, Third Edition, 1960.
"Application of Dry Flue Gas Scrubbing to Hazardous Waste Incineration", Kroll et al., Journal of Air Pollution Control Assoc., vol. 36, No. 11, Nov. 1986, pp. 1258-1263.
"Dry Sorbent Emission Control Technologies", Muzio et al., Journal of the Air Pollution Control Assoc., vol. 37, No. 5, May 1987, pp. 642-653.
Beco Engineering Company
DiMauro Peter T.
Lewis Michael
LandOfFree
Method for minimizing environmental release of toxic compounds i does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for minimizing environmental release of toxic compounds i, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for minimizing environmental release of toxic compounds i will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2144197