Method of removing nitrogen oxides from plant exhaust
Patent
·
OSTI ID:7291491
A method of removing a nitrogen oxide from an exhaust containing the same which comprises preparing an absorbent solution by adding divalent copper ions alone or a mixture of the divalent copper ions and divalent manganese ions to an acid aqueous solution containing sulfites or acid sulfites of ammonium, alkaline metals, or alkaline earth metals or a mixture of two or more of these compounds; and introducing the plant exhaust into the absorbent solution to carry out reaction between the sulfite radical of the absorbent solution and the nitrogen oxides contained in the exhaust to reduce the nitrogen oxides to nitrogen gas. 9 Claims, 3 Drawing Figures.
- Assignee:
- Nippon Kokan Kabushiki Kaisha
- Patent Number(s):
- US 3932585
- OSTI ID:
- 7291491
- Country of Publication:
- United States
- Language:
- English
Similar Records
Method for removing nitrogen oxides using ferricion-EDTA complex solutions
Method of removing oxides of sulfur and oxides of nitrogen from exhaust gases
Method for removing sulfur dioxide from exhaust gas
Patent
·
Mon Mar 13 23:00:00 EST 1978
·
OSTI ID:5011560
Method of removing oxides of sulfur and oxides of nitrogen from exhaust gases
Patent
·
Tue Dec 31 23:00:00 EST 1985
·
OSTI ID:866005
Method for removing sulfur dioxide from exhaust gas
Patent
·
Tue Oct 19 00:00:00 EDT 1976
·
OSTI ID:7228453
Related Subjects
20 FOSSIL-FUELED POWER PLANTS
200202* -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105 -- Separation Procedures
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
AMMONIUM COMPOUNDS
ATOMIC IONS
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL REACTIONS
COPPER IONS
DENITRIFICATION
DESIGN
DESULFURIZATION
EQUIPMENT
FLUE GAS
FOSSIL-FUEL POWER PLANTS
GASEOUS WASTES
INDUSTRIAL PLANTS
IONS
MANAGEMENT
MANGANESE IONS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
PROCESSING
REMOVAL
SULFUR COMPOUNDS
SULFUR OXIDES
THERMAL POWER PLANTS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
200202* -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105 -- Separation Procedures
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
AMMONIUM COMPOUNDS
ATOMIC IONS
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL REACTIONS
COPPER IONS
DENITRIFICATION
DESIGN
DESULFURIZATION
EQUIPMENT
FLUE GAS
FOSSIL-FUEL POWER PLANTS
GASEOUS WASTES
INDUSTRIAL PLANTS
IONS
MANAGEMENT
MANGANESE IONS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
PROCESSING
REMOVAL
SULFUR COMPOUNDS
SULFUR OXIDES
THERMAL POWER PLANTS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES