FIELD: oil-and-gas production.
SUBSTANCE: invention relates to production of diesel fuel. Proposed method comprises oil desalting, extraction of diesel fractions, their mixing and mix hydrofining. In distillation in atmospheric column, two diesel fractions are run off that boil away at 171-341°C and 199-360°C, 199-360°C-fraction is directed to fluid extraction to remove benzalkylthiophens at the stock-to-extragent ratio of 1:1 to 1:4. Note that said extragent represents the product of interaction of organic amine with organic acid, that is amide. Thereafter, fractions 171-341°C and 199-360°C are mixed after purification in percentage composition of 70-85% and 15-30%, respectively. Note here that said mix at distillation by ASTM D-86 method features dry point of 360°C. Produced mix is subjected to hydrofining to get diesel fuel.
EFFECT: diesel fuel with sulfur content not exceeding 10 ppm.
1 tbl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR DIESEL FUEL GENERATION | 2008 |
|
RU2387700C1 |
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| DIESEL FUEL PRODUCTION PROCESS | 2001 |
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| METHOD OF OBTAINING WINTER DIESEL OIL | 2011 |
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| METHOD OF ECOLOGICALLY SAFETY DIESEL FUEL PRODUCING | 1996 |
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RU2737724C1 |
