FIELD: chemical technology.
SUBSTANCE: invention is designated for detoxification of chloroaromatic hydrocarbons or their mixtures by dechlorination method resulting to preparing benzene. Dechlorination process of chloroaromatic hydrocarbons is carried out by hydropyrolysis at temperature 700-850°C and in the mole ratio hydrogen : chloroaromatic hydrocarbons = (7-10):1 under pressure 0.1-5 MPa. Benzene is separated by rectification and the following recirculation unreacted chloroaromatic hydrocarbons. Formed hydrogen chlorine is adsorbed with alkali solution. Invention provides simplified technology, excluding toxic reagents and solvents in using and absence of toxic waste.
EFFECT: improved processing method.
12 ex
| Title | Year | Author | Number |
|---|---|---|---|
| CATALYST AND METHOD FOR HYDRODECHLORINATION OF CHLORO-AROMATIC COMPOUNDS | 2002 |
|
RU2214864C1 |
| METHOD OF COMPLETE DECHLORINATION OF POLYCHLOROAROMATIC COMPOUNDS | 1994 |
|
RU2114807C1 |
| METHOD OF HYDRODECHLORINATION OF CHLORAROMATIC COMPOUNDS AND CATALYST FOR METHOD REALISATION | 2006 |
|
RU2339606C2 |
| METHOD FOR LIQUID PHASE DECHLORINATION OF CHLOROAROMATIC COMPOUNDS | 1996 |
|
RU2100338C1 |
| HYDROCARBON FEEDSTOCK HYDROPYROLYSIS PROCESS | 2003 |
|
RU2249611C1 |
| METHOD OF CHEMICAL PROCESSING OF POLYCHLORINATED BIPHENYLES | 2016 |
|
RU2623216C1 |
| METHOD OF SIMULTANEOUS OBTAINING OF ETHYLENE AND METHAN | 0 |
|
SU654179A3 |
| METHOD OF DECHLORINATION OF SUBSTITUTED CHLOROAROMATIC COMPOUNDS | 1998 |
|
RU2152921C1 |
| METHOD FOR REDUCTION DECHLORINATION OF CHLOR-SUBSTITUTED HYDROCARBONS OR THEIR HYDROXY DERIVATIVES | 1994 |
|
RU2072340C1 |
| METHOD OF DETOXIFICATION OF POLYCHLORINATED ORGANIC WASTES | 2004 |
|
RU2255930C1 |
