US2662049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of hydrocarbons
Assignee: Superior Oil Co
•
Filing: 1951-12-29
•
Granted: 1953-12-08
•
Expires: 1971-12-29
Abstract
No abstract record available.
Inventors
- 👤 Stuart F Magor
- 👤 Robert A Daugherty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:04
CPC Classifications
C; C10; C10G; C10G5/00; C10G5/04; C07; C07C; C07C7/00; C07C7/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A PROCESS FOR ABSORPTION-RECOVERY OF DESIRED HYDROCARBON FRACTIONS FROM GASES, WHICH COMPRISES SUBSTANTIALLY COMPLETELY DEHYDRATING THE GAS, REFRIGERATING THE DEHYDRATED GAS TO A TEMPERATURE NOT ABOVE ABOUT 60* F., SEPARATELY REFRIGERATING A SUBSTANTIALLY COMPLETELY DEHYDRATED ABSORPTION OIL TO A TEMPERATURE NOT ABOVE ABOUT 60* F., ABSORBIGN SAID DESIRED FRACTIONS FROM THE REFRIGERATED GAS IN SAID DEHYDRATED REFRIGERATED ASBORPTION OIL, SUBJECTING THE RESULTANT ENRICHED OIL TO A RELATIVELY HIGH PRESSURE DISTILLATION STEP IN THE PRESENCE OF AN INERT GASEOUS TRIPPING MEDIUM TO SEPARATE THE UNDESIRED HYDROCARBONS THEREFROM, SUBJECTING THE RESULTANT PARTIALLY STRIPPED OIL TO A LOW PRESSURE DRY DISTILLATION STEP TO SUBSTANTIALLY COMPLETELY REMOVE THEREFROM THE REMAINING ABSORBED HYDROCARBONS AND WATER, AT A TEMPERATURE BELOW THE CRACKING TEMPERATURE OF THE ABSORPTION OIL, AND RETURINING THE DEHYDRATED OIL TO THE SECOND-MENTIONED REFRIGERATION STEP, SAID ABSORPTION OIL HAVING AN A.P.I. GRAVITY ABOVE 42* AND AN AVERAGE MOLECULAR WEIGHT BELOW ABOUT 155.
Claim 2
Dependent Claim
148 words
A PROCESS FOR ABSORPTION-RECOVERY OF DESIRED HYDROCARBON FRACTIONS FROM GASES, WHICH COMPRISES SUBSTANTIALLY COMPLETELY DEHYDRATING THE GAS, REFRIGERATING THE DEHYDRATED GAS TO A TEMPERATURE NOT ABOVE ABOUT 60* F., SEPARATELY REFRIGERATING A SUBSTANTIALLY COMPLETELY DEHYDRATED ABSORPTION OIL TO A TEMPERATURE NOT ABOVE ABOUT 60* F., ABSORBIGN SAID DESIRED FRACTIONS FROM THE REFRIGERATED GAS IN SAID DEHYDRATED REFRIGERATED ASBORPTION OIL, SUBJECTING THE RESULTANT ENRICHED OIL TO A RELATIVELY HIGH PRESSURE DISTILLATION STEP IN THE PRESENCE OF AN INERT GASEOUS TRIPPING MEDIUM TO SEPARATE THE UNDESIRED HYDROCARBONS THEREFROM, SUBJECTING THE RESULTANT PARTIALLY STRIPPED OIL TO A LOW PRESSURE DRY DISTILLATION STEP TO SUBSTANTIALLY COMPLETELY REMOVE THEREFROM THE REMAINING ABSORBED HYDROCARBONS AND WATER, AT A TEMPERATURE BELOW THE CRACKING TEMPERATURE OF THE ABSORPTION OIL, AND RETURINING THE DEHYDRATED OIL TO THE SECOND-MENTIONED REFRIGERATION STEP, SAID ABSORPTION OIL HAVING AN A.P.I. GRAVITY ABOVE 42* AND AN AVERAGE MOLECULAR WEIGHT BELOW ABOUT 155.
References Cited (Backward Citations)
US2297675A
Cited
US2386057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |