NOx influence on sulfite oxidation and scaling in lime/limestone flue gas desulfurization (FGD) systems
Journal Article
·
· Environ. Sci. Technol.; (United States)
Experiments were conducted to determine the influence of nitrogen oxides on the solid phase oxidation of sulfite to sulfate in slaked lime slurries from lime/limestone scrubbing systems. Nitric oxide is observed to act as an inhibitor and nitrogen dioxide as a promoter of the oxidation of sulfite. Nitric oxide present at the same concentration as nitrogen dioxide is unable to inhibit the oxidative influence of the latter. At a mole ratio of 12:1, the promotive action of nitrogen dioxide is offset, and the total oxidation is no greater than it would be without the presence of nitric oxide. Oxidation inhibition merits consideration as a way to avoid sulfate scaling in such scrubbing systems. (1 diagram, 1 graph, 6 references, 1 tables)
- Research Organization:
- Battelle Columbus Labs, Ohio
- OSTI ID:
- 6683253
- Journal Information:
- Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 14:4; ISSN ESTHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
424000* -- Engineering-- Pollution Control Equipment-- (1980-1989)
AIR POLLUTION CONTROL
CHALCOGENIDES
CHEMICAL REACTIONS
DESULFURIZATION
EQUIPMENT
FLUE GAS
GASEOUS WASTES
LIME-LIMESTONE WET SCRUBBING PROCESSES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
SCALING
SCRUBBERS
SCRUBBING
SULFATES
SULFITES
SULFUR COMPOUNDS
SULFUR OXIDES
WASTES
424000* -- Engineering-- Pollution Control Equipment-- (1980-1989)
AIR POLLUTION CONTROL
CHALCOGENIDES
CHEMICAL REACTIONS
DESULFURIZATION
EQUIPMENT
FLUE GAS
GASEOUS WASTES
LIME-LIMESTONE WET SCRUBBING PROCESSES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
SCALING
SCRUBBERS
SCRUBBING
SULFATES
SULFITES
SULFUR COMPOUNDS
SULFUR OXIDES
WASTES