Barrier discharge conversion of SO.sub.2 and NOx to acids

Details Barrier discharge conversion of SO.sub.2 and NOx to acids Barrier discharge conversion of SO.sub.2 and NOx to acids

1997-10-09

1999-02-16

Bos, Steven

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

423235, 42324301, 423393, 423522, 2041573, 204174, 204177, C25B 122, B01D 5360, B01D 5364

Patent

active

058717030

ABSTRACT:
A process and apparatus for reducing particulate, nitrogen oxides ("NOx"), sulfur dioxide ("SO.sub.2 "), and mercury ("Hg") emissions from the combustion exhaust of fossil fuel fired plants while producing an end product that is commercially useful, comprising the steps of oxidizing Hg, NOx and SO.sub.2 using a barrier, pulse, corona, or electron beam electrical discharge apparatus to produce HgO and the acids HNO.sub.3 and H.sub.2 SO.sub.4, collecting the HgO, acids and particulates in a wet ESP, and separating the particulates from the collected acid mixture, then separating and concentrated the acids for industrial use.

REFERENCES:
patent: 3745751 (1973-07-01), Zey et al.
patent: 3856476 (1974-12-01), De Seversky
patent: 3981815 (1976-09-01), Taniguchi et al.
patent: 4351810 (1982-09-01), Martinez et al.
patent: 4650555 (1987-03-01), Rzad et al.
patent: 4885139 (1989-12-01), Sparks et al.
patent: 4925639 (1990-05-01), Stauffer
patent: 5137546 (1992-08-01), Steinbacher et al.
patent: 5147516 (1992-09-01), Mathur et al.
patent: 5512144 (1996-04-01), Stauffer
patent: 5601791 (1997-02-01), Plaks et al.
patent: 5695616 (1997-12-01), Helfritch et al.
patent: 5733360 (1998-03-01), Feldman et al.
Masuda, S., et al. "Pulse Corona Induced Plasma Chemical Process . . . ", in Proceedings 3rd International Conference on Electrostatic Precipitation, Padova, Italy, Oct. 1987, pp. 667-676.
Urabe, T., et al. "Experimental Studies on Mercury Vapor Removal by Corona Discharge . . . ", Chemical Abs., vol. 109, #236097, Oct. 1987.
Dhali, S.K., et al. "Dielectric-barrier Discharge for Processing of SO.sub.2 /NOx", Journ. App. Physics, vol. 69, pp. 6319-6324, May 1991.
McLarnon, Christopher R., Nitrogen Oxide Decomposition by Barrier Discharge, Dissertation for Doctor of Philosophy Degree in Chemical Engineering, University of New Hampshire, May 1996.
Penetrante, Bernie M., Effect of Electrical Parameters on the Chemical Kinetics of Plasma-Based Air Pollution Control, Applications of Electrostatics for Control of Gas Phase Air Pollutants Workshop, Cincinnati, Ohio, Aug. 22, 1997.
Helfritch, Dennis J., Plasma Based Technologies Applied to Air Pollution Control, Applications of Electrostatics for Gas Phase Air Pollutants Workshop, Cincinnati, Ohio, Aug. 22, 1997.
Monroe, Larry S., et al., Testing of a Combined Dry and Wet Electrostatic Precipitator for Control of Fine Particulate Emissions from a Coal-Fired Boiler, EPRI-DOE-EPA Combined Utility Air Pollutant Control Symposium, Washington, DC, Aug. 25-29, 1997.
Chemetics International Ltd., Acid Recovery and Concentration Brochure, date unknown, Vancouver, Canada.

Affiliated with

Also associated with

Rating

Barrier discharge conversion of SO.sub.2 and NOx to acids does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Barrier discharge conversion of SO.sub.2 and NOx to acids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Barrier discharge conversion of SO.sub.2 and NOx to acids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2059492