Removal of corrosive impurities by water washing of the oil in the benzol division
In the process of recovery of benzene hydrocarbons the wash oil absorbs gaseous compounds from the coke oven gas: hydrogen cyanide, hydrogen sulfide and ammonia. These substances, and also the products of their reaction, are sources of corrosion of equipment, and polymerization of unstable organic compounds with formation of high-carbon compounds. The wastewaters from the benzol divisions introduce a significant quantity of toxic impurities into the general coking plant wastewater. The corrosive impurities are removed from the recycled wash oil by washing it with water, on the basis of the higher solubility of the impurities in water than in the wash oil. However, quantitative data on the comparative solubility of the impurities are not available. In order to evaluate the possibility of extracting corrosive inpurities from the wash oil with water, the distribution coefficients of the gases and their reaction products absorbed by the oil (ammonium thiocyanate and ammonium cyanide) between the oils and the water were determined. 7 references, 2 tables.
- OSTI ID:
- 6435299
- Journal Information:
- Coke Chem. USSR (Engl. Transl.); (United States), Journal Name: Coke Chem. USSR (Engl. Transl.); (United States) Vol. 6; ISSN COKCA
- Country of Publication:
- United States
- Language:
- English
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54 ENVIRONMENTAL SCIENCES
AMMONIA
AMMONIUM COMPOUNDS
CARBONIZATION
CHALCOGENIDES
CHEMICAL REACTIONS
CLEANING
COAL GAS
COKING
CYANIDES
DATA
DECOMPOSITION
DISTRIBUTION FUNCTIONS
EXPERIMENTAL DATA
FLUIDS
FUNCTIONS
GASES
HYDRIDES
HYDROCYANIC ACID
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
INFORMATION
INORGANIC ACIDS
MEDIUM TEMPERATURE
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NUMERICAL DATA
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
SULFIDES
SULFUR COMPOUNDS
WASHING
WATER
WATER POLLUTION ABATEMENT