Recovery of ammonia and pyridine bases in spray-nozzle scrubbers
The use of saturatorless apparatus for ammonia recovery is restricting the increase in throughput capacity of the coke-oven gas processing apparatus which is necessary in view of the adoption of thermally prepared charge and the consequent large increase in coke-oven gas volumes. Basic design data have been compiled at the West Siberian Iron and Steel Works for the construction of spray-nozzle scrubbers by experiments with the existing standard saturatorless apparatus. The ammonia recovery performance of the stage I scrubbers was found to depend entirely on two factors, viz., the coke-oven gas throughput per scrubber and the mother-liquor acidity. It was completely unaffected by the mother-liquor throughput rate over the range 170 to 230 m/sup 3//h. In stage II, the results showed that the only factor significantly influencing the relative ammonia losses in the coke-oven gas was the mother-liquor throughput rate. Based on the results of these experiments, new scrubbers were designed to handle higher flow rates in the Stage II scrubbers. In Stage I the recommendations were to increase the height of the scrubbers and to add more spray nozzles. (LTN)
- OSTI ID:
- 5809352
- Journal Information:
- Coke Chem., USSR (Engl. Transl.); (United States), Journal Name: Coke Chem., USSR (Engl. Transl.); (United States) Vol. 8; ISSN COKCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010401 -- Coal & Coal Products-- Carbonization-- (-1987)
010500* -- Coal
Lignite
& Peat-- Products & By-Products
AMMONIA
AZINES
COAL GAS
EFFICIENCY
EQUIPMENT
EUROPE
FLUIDS
GASES
HETEROCYCLIC COMPOUNDS
HYDRIDES
HYDROGEN COMPOUNDS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PERFORMANCE TESTING
PURIFICATION
PYRIDINES
RECOVERY
TESTING
USSR