FIELD: chemistry.
SUBSTANCE: invention relates to a method of separating benzene from mixtures with non-aromatic hydrocarbons to simultaneously obtain a distillate by extractive rectification. The method is characterised by that the selective solvent used is mixtures containing 30-50 wt % mixed solvent of sulfolane and 3-methylsulfolane of the composition 89/11 wt % and 50-70 wt % N-methylpyrrolidone.
EFFECT: use of the present method enables to obtain benzene with a higher degree of extraction and a distillate which can be used as a component of motor petrol or as raw material for the pyrolysis process.
6 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF EXTRACTING BENZENE FROM MIXTURES WITH NON-AROMATIC HYDROCARBONS | 2008 |
|
RU2381208C1 |
| COMBINED METHOD FOR ISOLATING C6-C8-AROMATIC HYDROCARBONS FROM MIXTURES WITH NON-AROMATIC HYDROCARBONS | 2003 |
|
RU2254317C1 |
| METHOD FOR ISOLATION OF AROMATIC C-C-HYDROCARBONS AND REFORMED GASOLINE COMPONENT FROM GASOLINE FRACTION REFORMAT | 2004 |
|
RU2256691C1 |
| METHOD OF PREPARING BENZENE AND DEBENZENIZED HIGH-OCTANE BLEND | 2005 |
|
RU2287514C1 |
| METHOD OF CLEANING OIL PRODUCTS FROM SULFUR-CONTAINING AND AROMATIC HYDROCARBONS | 2017 |
|
RU2666362C1 |
| METHOD FOR OBTAINING BENZOL | 2017 |
|
RU2638173C1 |
| BENZENE PRODUCTION PROCESS | 2005 |
|
RU2291892C1 |
| METHOD OF ISOLATING BENZENE FROM HIGHLY AROMATIZED RAW MATERIAL | 0 |
|
SU781195A1 |
| METHOD OF PURIFYING BENZENE | 1999 |
|
RU2164907C1 |
| METHOD OF PREPARING BENZENE AND DEBENZENELATED HIGH- OCTANE MIXTURE | 1998 |
|
RU2153485C2 |
