Sodium-limestone double alkali flue gas desulfurization method

Details Sodium-limestone double alkali flue gas desulfurization method Sodium-limestone double alkali flue gas desulfurization method

1982-05-10

1983-10-18

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423166, 423512A, C01B 1700

Patent

active

044105002

ABSTRACT:
A flue gas desulfurization method for efficiently removing sulfur oxides from a gas stream with an aqueous sodium sulfite- and sodium bisulfite-containing absorption solution, in which absorber effluent solution at a pH of from 5.8 to 6.6 and having an active sodium concentration of from 0.5 M to 0.9 M is regenerated with sufficient ground limestone to yield a treated solution with a higher pH of from 6.3 to 7.0 and whose bisulfite concentration is reduced by from 35 to 70%.

REFERENCES:
patent: 3607033 (1971-09-01), Shah
patent: 3775532 (1973-11-01), Shah
patent: 3840638 (1974-10-01), Morita et al.
patent: 3848070 (1974-11-01), Onozuka et al.
patent: 3911084 (1975-10-01), Wall et al.
patent: 3944649 (1976-03-01), Field et al.
patent: 3961021 (1976-06-01), Morita et al.
patent: 3965242 (1976-06-01), Morita et al.
patent: 3989796 (1976-11-01), Morita et al.
patent: 3989797 (1976-11-01), Brady et al.
patent: 4021202 (1977-05-01), Field et al.
patent: 4331640 (1982-05-01), Morita et al.
EPA-600/7-77-074, Oberholtzer et al., Laboratory Study of Limestone Regeneration in Dual Alkali Systems, Jul., 1977.
EPA-600/7-81-141b, Valencia et al., "Evaluation of the Limestone Dual Alkali Prototype System at Plant Scholz", 1981.
EPA-600/7-77-050b, C. R. LaMantia et al., "Final Report: Dual Alkali Test and Evaluation Program," vol. II, Chapter VI, May 1977.

Affiliated with

Also associated with

Rating

Sodium-limestone double alkali flue gas desulfurization method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sodium-limestone double alkali flue gas desulfurization method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sodium-limestone double alkali flue gas desulfurization method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1289111