Crude oil processing
Abstract
Abstract IN A PROCESS WHICH COMPRISES HEATING, DESALTING AND THEN FURTHER HEATING HYDROCARBONACEOUS OIL USING HEAT EXCHANGERS AND A DESALTER, AN IMPROVEMENT IS MADE WHICHP COMPRISES: (A) DESALTING THE OIL TO OBTAIN DESALTED OIL; (B) INJECTING A HOT FLUID INTO THE DESALTED OIL, SAID HOT FLUID BEING AT A TEMPERATURE HIGHER THAN THE DESALT OIL; AND (C) FLASHING THE DESALTED OIL BEFORE FURTHER HEATING OF THE DESALTED OIL IN ANY HEAT EXCHANGER. PREFERABLY, THE HOT FLUID INJECTED INTO THE DESALTED OIL IS A HOT DISTILLATE WITHDRAWN FROM THE CRUDE OIL DISTILLATION COLUMN LOCATED DOWNSTREAM OF THE FLASHING STEP. THE HOT DISTILLATE SERVES TO AMELIORATE POSSIBLE FOAMING IN THE FLASH DRUM BY LOWERING THE VISCOSITY OF THE DESALTED OIL THROUGH RAISING THE OVER-ALL TEMPERATURE AND THROUGH THE LOWER VISCOSITY OF THE DISTILLATE COMPARED TO THE CRUDE OIL AT A GIVEN TEMPERATURE.
Inventors
- 👤 J Arndt
- 👤 W Ebert
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |