FIELD: petroleum processing.
SUBSTANCE: process comprises mixing feedstock with surfactant, heat treatment of the mixture, cooling thermally treated mixture to dewaxing temperature, and separating paraffin hydrocarbons in constant electric field, said surfactant being ester-polyamide depressant, which is product of condensation of higher fatty alcohols, pyromellite dianhydride, and polyethylene-polyamines used in molar ratio 2.8:1.0:1.0, respectively.
EFFECT: increased yield of dewaxed diesel fuel and improved its characteristics regarding freezing temperature and turbidity temperature.
1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DEWAXING OF THE OIL PRODUCTS | 2005 |
|
RU2288942C1 |
| PETROLEUM PRODUCT DEWAXING PROCESS | 2006 |
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| METHOD FOR OBTAINING WAXY WINTER GRADES OF FUELS BY DEWAXING | 2011 |
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RU2509143C2 |
| METHOD FOR DEWAXING PETROLEUM PRODUCTS | 2011 |
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RU2458970C1 |
| METHOD OF OIL PRODUCTS DE-WAXING | 2008 |
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RU2353646C1 |
| METHOD OF OIL PRODUCTS DE-WAXING | 2008 |
|
RU2353645C1 |
| METHOD OF DEWAXING PETROLEUM PRODUCTS | 1996 |
|
RU2106390C1 |
| DEVICE FOR ELECTROSTATIC DEWAXING OF SUMMER TYPES OF FUEL IN FLOW MODE | 2018 |
|
RU2739353C2 |
| DEPRESSANT FOR PETROLEUM PRODUCTS | 2000 |
|
RU2183657C1 |
| METHOD FOR IMPROVING LOW-TEMPERATURE PROPERTIES OF PETROLEUM PRODUCTS, INCLUDING DIESEL FUEL AND HYDRAULIC FLUIDS | 2017 |
|
RU2667916C1 |
