FIELD: primary petroleum processing. SUBSTANCE: demulsifier contains high-boiling fractions and ethylene glycol-based bulk copolymer of propylene and ethylene oxides. At optimum ratio of components in processes of deep dehydration and desalting of oils with various-type emulsions, sour and high-sulfur oils, complete dehydration of oil and desalting to 1.0-1.5 mg/l is achieved, whereas corrosion velocity of carbon steels in demulsifier solutions diminished by a factor of 7- 10. Toxic properties of demulsifier are relatively low. EFFECT: improved activity and reduced noxious side effects. 4 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| MIXTURE FOR DEHYDRATION AND SALT ELIMINATION OF PETROLEUM | 1997 |
|
RU2117689C1 |
| CRUDE OIL DEHYDRATION AND DESALTING COMPOSITION | 1997 |
|
RU2139316C1 |
| COMPOSITION FOR DEHYDRATION AND DESALTING OF CRUDE OIL | 1995 |
|
RU2076135C1 |
| DEMULSIFIER PREPARATION METHOD | 2001 |
|
RU2209231C2 |
| COOLANT LIQUID FOR INTERNAL COMBUSTION ENGINE | 1996 |
|
RU2102428C1 |
| METHOD OF PREPARING DEMULSIFIER | 1999 |
|
RU2151780C1 |
| PROCESS OF TREATING TRAPPED PERSISTENT WATER-OIL EMULSIONS BEFORE PROCESSING | 2005 |
|
RU2318865C2 |
| PROCESS OF TREATING HYDROCARBON FEEDSTOCK FOR FURTHER PROCESSING | 2003 |
|
RU2261263C2 |
| METHOD FOR DEHYDRATION AND DESALTING OF PETROLEUM | 2005 |
|
RU2278146C1 |
| COMPOUND FOR DEWATERING AND DEMINERALIZATION OF OIL | 1992 |
|
RU2050402C1 |
