US3211643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of oil from solid carbonaceous materials
Assignee: Oil Shale Corp
•
Filing: 1961-10-13
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Granted: 1965-10-12
•
Expires: 1981-10-13
Abstract
No abstract record available.
Inventors
- 👤 Albert F Lenhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:47
CPC Classifications
C; C10; C10G; C10G5/00; C10G1/00; C10G1/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A METHOD FOR TREATING EFFLUENT VAPOR DERIVED BY THERMAL TREATMENT OF OIL SHALE AND LIKE KEROGENOUS MATERIALS WHICH COMPRISES CONDENSING UNDER CONDITIONS OF TEMPERATURE AND PRESSURE SUCH THAT THE TEMPERATURE IS ABOVE THE DEW POINT FOR WATER VAPOR AT SAID PRESSURE HYDOCARBONS HAVING A NORMAL BOLING POINT ABOVE ABOUT 650*F. FROM SAID EFFLUENT VAPOR IN A FIRST CONDENSATION ZONE TO PROVIDE A HEAVY OIL FRACTION, AT LEAST ONE LIGHT OIL FRACTION AND A VAPOR FRACTION COMPRISING STEAM; SEPARATING SAID VAPOR FRACTION FROM SAID OIL FRACTIONS; CONDENSING STEAM FROM SAID VAPOR FRACTION COMPRISING STEAM; SEPARATING SAID VAPOR VIDE A LIGHT VAPOR FRACTION AND A CONDENSATE WHICH IS AUTOGENOUSLY SEPARABLE INTO A WATER FRACTION AND A LIQUID HYDROCARBON FRACTION; SEPARATING SAID FRACTIONS PROVIDED IN SAID CONDENSATION ZONE; AND COMBINING AT LEAST A PORTION OF SAID LIQUID HYDROCARBON FRACTION WITH AT LEAST ONE OF SAID OIL FRACTIONS FRONT SAID FIRST CONDENSATION ZONE TO OBTAIN A FINAL OIL HVING A RELATIVELY LOW MOISTURE CONTENT.
Claim 2
Independent Claim
160 words
A METHOD FOR TREATING EFFLUENT VAPOR DERIVED BY THERMAL TREATMENT OF OIL SHALE AND LIKE KEROGENOUS MATERIALS WHICH COMPRISES CONDENSING UNDER CONDITIONS OF TEMPERATURE AND PRESSURE SUCH THAT THE TEMPERATURE IS ABOVE THE DEW POINT FOR WATER VAPOR AT SAID PRESSURE HYDOCARBONS HAVING A NORMAL BOLING POINT ABOVE ABOUT 650*F. FROM SAID EFFLUENT VAPOR IN A FIRST CONDENSATION ZONE TO PROVIDE A HEAVY OIL FRACTION, AT LEAST ONE LIGHT OIL FRACTION AND A VAPOR FRACTION COMPRISING STEAM; SEPARATING SAID VAPOR FRACTION FROM SAID OIL FRACTIONS; CONDENSING STEAM FROM SAID VAPOR FRACTION COMPRISING STEAM; SEPARATING SAID VAPOR VIDE A LIGHT VAPOR FRACTION AND A CONDENSATE WHICH IS AUTOGENOUSLY SEPARABLE INTO A WATER FRACTION AND A LIQUID HYDROCARBON FRACTION; SEPARATING SAID FRACTIONS PROVIDED IN SAID CONDENSATION ZONE; AND COMBINING AT LEAST A PORTION OF SAID LIQUID HYDROCARBON FRACTION WITH AT LEAST ONE OF SAID OIL FRACTIONS FRONT SAID FIRST CONDENSATION ZONE TO OBTAIN A FINAL OIL HVING A RELATIVELY LOW MOISTURE CONTENT.
References Cited (Backward Citations)
CA469771A
Cited
US1811654A
Cited
US2601257A
Cited
US2905595A
Cited
US2933447A
Cited
US3051644A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |