Removal of nitric oxide from coke oven gas
In order to localize the process of oxidation and extraction of nitric oxide from coke oven gas the absorption method was investigated where the oxidizing and absorbing agent was an ozone-saturated solvent, chemically inert for oxidizers. The principal stages of the process are the generation of the ozone, preparation of the ozone treated solvent and the treatment of the coke oven gas. The investigations were conducted on a model laboratory apparatus. The ozone was synthesized in a type LG0-15 generator. Water was saturated with the ozone by means of dispersion: the saturation time was 50 to 600 sec, and the saturation temperatures 3 and 22/sup 0/C. In the treatment stage the coke oven was washed in a packed absorption column with a gas phase load of 26 to 30 m/sup 3//m/sup 2/h. The degree of oxidation did not exceed 5%. The theoretical time of contact of the gas with the ozone-treated water was 2.0 to 2.5 sec. The pressure was 908 +- 1 kPa. The ozone concentration in the liquid phase was determined iodometrically, and the nitric oxide concentration before and after treatment was determined by the standard method.
- OSTI ID:
- 6416322
- Journal Information:
- Coke Chem. USSR (Engl. Transl.); (United States), Vol. 2; Other Information: Translated from Koks Khim.; No. 2, 28-30(1982)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
42 ENGINEERING
COAL GAS
DENITRIFICATION
COKING PLANTS
GASEOUS WASTES
NITRIC OXIDE
REMOVAL
AIR POLLUTION CONTROL
BENCH-SCALE EXPERIMENTS
COKE OVENS
COKING
OZONE
CARBONIZATION
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
DECOMPOSITION
FLUIDS
GASES
INDUSTRIAL PLANTS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
WASTES
010800* - Coal
Lignite
& Peat- Waste Management
010401 - Coal & Coal Products- Carbonization- (-1987)
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
424000 - Engineering- Pollution Control Equipment- (1980-1989)