FIELD: petroleum processing and petrochemistry.
SUBSTANCE: method consists in liquid-phase multistage countercurrent extraction of aromatic hydrocarbons from gasoline fraction reformat with sulfolane containing 0.2-2% water at sulfolane/feed volume ratio (1.6-2.0):1 and temperature 30-50°C, followed by removal of nonaromatic hydrocarbons remaining in extracted phase via extractive-azeotropic rectification with sulfolane and high-octane lower aliphatic alcohols at ratios (0.55-0.70):1 and (0.05-0.08):1 by weight, respectively.
EFFECT: enabled production of benzene, toluene, xylenes, and sum of C9-arenes and reformed gasoline component meeting environmental requirements.
1 dwg, 5 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| PROCESS FOR PRODUCING DEAROMATIZED COMPONENT FROM REFORMAT OF GASOLINE FRACTION FOR PRODUCTION OF PETROLEUM SOLVENTS | 2006 |
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RU2315029C9 |
| COMBINED METHOD FOR ISOLATING C6-C8-AROMATIC HYDROCARBONS FROM MIXTURES WITH NON-AROMATIC HYDROCARBONS | 2003 |
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| METHOD OF ISOLATING AROMATIC HYDROCARBONS FROM THEIR MIXTURE WITH NON- AROMATIC HYDROCARBONS | 1996 |
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| METHOD OF EXTRACTING BENZENE FROM MIXTURES WITH NON-AROMATIC HYDROCARBONS | 2008 |
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RU2568114C2 |
| METHOD OF EXTRACTING AROMATIC HYDROCARBONS FROM REFORMING CATALYSATE FRACTION 62-105 C | 2000 |
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RU2177023C1 |
| VACUUM GAS OIL PURIFICATION PROCESS ASSOCIATED WITH PRODUCTION OF CARBON BLACK MANUFACTURE FEEDSTOCK | 2002 |
|
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| METHOD OF ISOLATING AROMATIC HYDROCARBONS FROM AROMATIZED FRACTION | 0 |
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SU789466A1 |
| METHOD OF RECOVERY OF HIGH ANTIKNOCK GASOLINE AND AROMATIC HYDROCARBONS | 1992 |
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| METHOD OF RECOVERY OF HIGH ANTIKNOCK GASOLINE AND AROMATIC HYDROCARBONS | 1992 |
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RU2010838C1 |
