FIELD: chemistry.
SUBSTANCE: invention refers to the process chemistry of organic synthesis. The methyl chloride absorption from the waste gases is performed by the contraflow of reacting phases at temperature range -20 °C to -25 °C with using of kerosene with boiling points range 180-300 °C as absorbent. The methyl chloride desorption is carried out by absorbent heating at atmospheric pressure to temperature 20-30 °C. Heated and methyl chloride free absorbent is cooled and returned to absorption stage, the concentrated vapours of methyl chloride separated from the saturated absorbent are directed for condensation.
EFFECT: method allows to extract the methyl chloride from waste gases with its low content (10-17 mole %) with the yield 89% and substantially decrease the process cost.
4 cl, 1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF CLEANING ABGASES OF METHYL CHLORIDE | 2011 |
|
RU2470697C2 |
| PROCESS FOR PREPARING METHANIC CHLOROHYDROCARBONS | 1996 |
|
RU2127245C1 |
| METHOD OF INTEGRATED PROCESSING OF PRODUCTS ISSUED FROM METHANE-CONTAINING GAS OXIDATIVE PYROLYSIS | 2001 |
|
RU2208600C1 |
| METHOD OF PURIFYING WASTE GASES FROM DICHLOROETHANE | 0 |
|
SU972708A1 |
| CUMENE OXIDATION EMISSION GAS PURIFICATION PROCESS | 2005 |
|
RU2300412C2 |
| HIGH-BOILING ORGANIC ABSORBENT FOR EXTRACTION OF ORGANIC SOLVENTS FROM GAS AND MANUFACTURING EMISSIONS | 2006 |
|
RU2326720C1 |
| METHOD OF EXTRACTION OF ETHYL CHLORIDE | 1997 |
|
RU2132323C1 |
| METHOD OF LIBERATING ETHYL CHLORIDE | 1978 |
|
SU725379A1 |
| METHOD OF PURIFYING PYROLYSIS GAS FROM HOMOLOGUES OF ACETYLENE, ETHYLENE AND C, C HYDROCARBONS | 2015 |
|
RU2582315C1 |
| 0 |
|
SU118493A1 |
