NOx, Hg, and SO 2 removal using alkali hydroxide

Details NOx, Hg, and SO 2 removal using alkali hydroxide NOx, Hg, and SO 2 removal using alkali hydroxide

2006-05-30

2006-05-30

Silverman, Stanley S. (Department: 1754)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

C423S242100, C423S243060, C423S243080, C423S243110, C588S301000, C588S320000

Reexamination Certificate

active

07052662

ABSTRACT:
A process and apparatus for removing SO2, NO, and NO2from a gas stream having the steps of oxidizing a portion of the NO in the flue gas stream to NO2, scrubbing the SO2, NO, and NO2with an alkali scrubbing solution, and removing any alkali aerosols generated by the scrubbing in a wet electrostatic precipitator. The process can also remove Hg by oxidizing it to oxidized mercury and removing it in the scrubbing solution and wet electrostatic precipitator. Alkali sulfates, which are valuable fertilizers, can be withdrawn from the rubbing solution.

REFERENCES:
patent: 4028071 (1977-06-01), Langlois
patent: 4029482 (1977-06-01), Postma et al.
patent: 4029739 (1977-06-01), Senjo et al.
patent: 4035470 (1977-07-01), Senjo et al.
patent: 4120671 (1978-10-01), Steinmeyer
patent: 4155726 (1979-05-01), Steinmeyer
patent: 4193774 (1980-03-01), Pilat
patent: 4345916 (1982-08-01), Richards et al.
patent: 4435260 (1984-03-01), Koichi et al.
patent: 4650555 (1987-03-01), Rzad et al.
patent: 4690807 (1987-09-01), Saleem
patent: 4726940 (1988-02-01), Kobayashi
patent: 4735927 (1988-04-01), Gerdes et al.
patent: 4735930 (1988-04-01), Gerdes et al.
patent: 4806320 (1989-02-01), Nelson
patent: 4892718 (1990-01-01), Peter et al.
patent: 4971777 (1990-11-01), Firnhaber et al.
patent: 4999167 (1991-03-01), Skelley et al.
patent: 5023063 (1991-06-01), Stiles
patent: 5041271 (1991-08-01), Aoki et al.
patent: 5176888 (1993-01-01), Stiles
patent: 5229091 (1993-07-01), Buchanan et al.
patent: 5308385 (1994-05-01), Winn
patent: 5316737 (1994-05-01), Skelley et al.
patent: 5362458 (1994-11-01), Saleem et al.
patent: 5547648 (1996-08-01), Buchanan et al.
patent: 5624649 (1997-04-01), Gal
patent: 5658547 (1997-08-01), Michalak et al.
patent: 5715764 (1998-02-01), Lyngfelt et al.
patent: 5723838 (1998-03-01), Shin et al.
patent: 5792238 (1998-08-01), Johnson et al.
patent: 5846301 (1998-12-01), Johnson et al.
patent: 5871703 (1999-02-01), Alix et al.
patent: 5985223 (1999-11-01), Saxena et al.
patent: 6063352 (2000-05-01), Risse et al.
patent: 6117403 (2000-09-01), Alix et al.
patent: 6132692 (2000-10-01), Alix et al.
patent: 6136284 (2000-10-01), Hwang et al.
patent: 6159440 (2000-12-01), Schoubye
patent: 6168709 (2001-01-01), Etter
patent: 6183708 (2001-02-01), Hei et al.
patent: 6193934 (2001-02-01), Yang
patent: 6203598 (2001-03-01), Hasegawa et al.
patent: 6221325 (2001-04-01), Brown et al.
patent: 6277343 (2001-08-01), Gansley et al.
patent: 6277344 (2001-08-01), Hei et al.
patent: 6284022 (2001-09-01), Sachweh et al.
patent: 6302945 (2001-10-01), Altman et al.
patent: 6312505 (2001-11-01), McQuigg et al.
patent: 2001/0033817 (2001-10-01), Sander
patent: 2001/0045162 (2001-11-01), McQuigg et al.
patent: WO-99/47268 (1999-09-01), None
patent: WO-01/87464 (2001-11-01), None
patent: WO=02/062453 (2002-08-01), None
Lee, etal. “The Effect of In Situ Generated Ammonia—Sufer Aerosols on the Removal of NOx in a Wet ESP”, Aug. 20, 2001, Mega Symposium, Chicago, IL.

Affiliated with

Also associated with

Rating

NOx, Hg, and SO 2 removal using alkali hydroxide does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with NOx, Hg, and SO 2 removal using alkali hydroxide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and NOx, Hg, and SO 2 removal using alkali hydroxide will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3615962