US2926129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deashing of residual fractions
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1958-06-13
•
Granted: 1960-02-23
•
Expires: 1978-06-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles Newton Kimberlin
- 👤 Adams Clark Edward
- 👤 Wilfred O Taff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:39
CPC Classifications
C; C10; C10G; C10G21/00; C10G21/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
AN IMPROVED PROCESS FOR UPGRADING A METALLIC CONTAMINATED PETROLEUM FRACTION INCLUDING CONSTITUENTS BOILING ABOVE ABOUT 950*F. WHICH COMPRISES SUBJECTING SAID FRACTION TO AN INITIAL THERMAL TREATMENT AT A TEMPERATURE BETWEEN ABOUT 600* TO 900*F. FOR A PERIOD OF 0.1 5 HOURS, THEREAFTER CONTACTING SAID FRACTION IN A PRECIPITATION ZONE WITH 0.1 TO 10 VALUMES OF A LIGHT HYDROCARBON PER VOLUME OF OIL, AN ACID GAS AND ABOUT 0.1 TO 3.0 VOLUMES OF LIQUID SO2 PER VOLUME OF OIL, THEREBY PERCIPITATING AND COAGULATING METALLIC CONTAMINANTS AND SEPARATING A HEAVY OIL SUBSTANTIALLY FREE FROM THE PRECIPITATED AND COAGULATED METALLIC CONTAMINANTS.
Claim 2
Dependent Claim
98 words
AN IMPROVED PROCESS FOR UPGRADING A METALLIC CONTAMINATED PETROLEUM FRACTION INCLUDING CONSTITUENTS BOILING ABOVE ABOUT 950*F. WHICH COMPRISES SUBJECTING SAID FRACTION TO AN INITIAL THERMAL TREATMENT AT A TEMPERATURE BETWEEN ABOUT 600* TO 900*F. FOR A PERIOD OF 0.1 5 HOURS, THEREAFTER CONTACTING SAID FRACTION IN A PRECIPITATION ZONE WITH 0.1 TO 10 VALUMES OF A LIGHT HYDROCARBON PER VOLUME OF OIL, AN ACID GAS AND ABOUT 0.1 TO 3.0 VOLUMES OF LIQUID SO2 PER VOLUME OF OIL, THEREBY PERCIPITATING AND COAGULATING METALLIC CONTAMINANTS AND SEPARATING A HEAVY OIL SUBSTANTIALLY FREE FROM THE PRECIPITATED AND COAGULATED METALLIC CONTAMINANTS.
References Cited (Backward Citations)
US2188012A
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US2130147A
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US2685561A
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US2650898A
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US2727853A
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US2780587A
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US2834715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |