FIELD: petroleum processing.
SUBSTANCE: dewaxing of petroleum products is conduct via mixing feedstock with surfactant, heat treatment of resulting mixture, cooling it to dewaxing temperature and separating paraffin hydrocarbons in constant electric field, said surfactant being product of condensation of higher fatty alcohols, pyromellitic dianhydride, and ethylene glycol at molar ratio 2:1:2, respectively.
EFFECT: increased yield of dewaxed diesel fuel and improved its low-temperature properties (freezing temperature and cloud point temperature.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DEWAXING OF THE OIL PRODUCTS | 2005 |
|
RU2288942C1 |
| PETROLEUM PRODUCT DEWAXING PROCESS | 2005 |
|
RU2289611C1 |
| METHOD FOR OBTAINING WAXY WINTER GRADES OF FUELS BY DEWAXING | 2011 |
|
RU2509143C2 |
| METHOD FOR DEWAXING PETROLEUM PRODUCTS | 2011 |
|
RU2458970C1 |
| METHOD OF OIL PRODUCTS DE-WAXING | 2008 |
|
RU2353646C1 |
| METHOD OF OIL PRODUCTS DE-WAXING | 2008 |
|
RU2353645C1 |
| DEPRESSANT FOR PETROLEUM PRODUCTS | 2000 |
|
RU2183657C1 |
| DEVICE FOR ELECTROSTATIC DEWAXING OF SUMMER TYPES OF FUEL IN FLOW MODE | 2018 |
|
RU2739353C2 |
| METHOD OF DEWAXING PETROLEUM PRODUCTS | 1996 |
|
RU2106390C1 |
| METHOD FOR IMPROVING LOW-TEMPERATURE PROPERTIES OF PETROLEUM PRODUCTS, INCLUDING DIESEL FUEL AND HYDRAULIC FLUIDS | 2017 |
|
RU2667916C1 |
