FIELD: chemistry.
SUBSTANCE: method of reactivating spent activated carbon includes drying at 280-350°C and heat treatment in the presence of water vapor. First, the heat treatment is conducted in the presence of steam at 350-700°C with 3-7°C/min temperature rise rate. The heat treatment is then carried out at 750-850°C when feeding water vapor at the rate of 0.4-0.8 dm3/min.
EFFECT: invention allows to increase the adsorption capacity of waste carbon and to use reactivated carbon for purifying air from benzene vapor.
3 ex
| Title | Year | Author | Number |
|---|---|---|---|
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|
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| METHOD FOR PRODUCING CRUSHED ACTIVATED CARBON FROM COAL RAW MATERIALS | 2021 |
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RU2776530C1 |
