FIELD: petroleum products technology. SUBSTANCE: depressant is prepared by interaction of higher fatty alcohols fraction C12-C18, pyromellite dianhydride, and ethylene glycol at molar ratio (3.0-1.5) : (1.0 : (0.5-2.0). When 0.5-2,0 wt % of depressant is added to diesel fuel with freezing temperature +11 C, depression of freezing temperature varies between 14 and 28 C (with old depressants does not exceed 1-2 C). EFFECT: drastically increased depression activity. 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DEWAXING OF THE OIL PRODUCTS | 2005 |
|
RU2288942C1 |
| PETROLEUM PRODUCT DEWAXING PROCESS | 2005 |
|
RU2289611C1 |
| PETROLEUM PRODUCT DEWAXING PROCESS | 2006 |
|
RU2321616C2 |
| METHOD OF PREPARING PETROLEUM DERIVATIVE DEPRESSANTS | 2002 |
|
RU2208042C1 |
| METHOD OF PREPARING DEPRESSANT FOR PETROLEUM PRODUCT | 2000 |
|
RU2181136C1 |
| DEPRESSANT FOR PETROLEUM PRODUCTS | 1996 |
|
RU2106395C1 |
| METHOD OF PREPARING DEPRESSANT FOR PETROLEUM PRODUCTS | 2005 |
|
RU2289613C1 |
| METHOD FOR DEWAXING PETROLEUM PRODUCTS | 2011 |
|
RU2458970C1 |
| METHOD OF OIL PRODUCTS DE-WAXING | 2008 |
|
RU2353646C1 |
| PETROLEUM PRODUCT DEPRESSING AGENT | 0 |
|
SU1120011A1 |
