US2717854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Countercurrent extraction tower and method of extracting hydrocarbon oil with phenol
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1952-11-07
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Granted: 1955-09-13
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Expires: 1972-11-07
Abstract
No abstract record available.
Inventors
- 👤 James R Felix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:48
CPC Classifications
B; B01; B01D; B01D11/00; B01D11/04; B01D11/0426; B01D11/043
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
171 words
AN APPARATUS FOR COUNTERCURRENT CONTACTING OF SUBSTANTIALLY IMMISCIBLE LIQUIDS OF DIFFERENT DENSITIES INCLUDING A VERTICAL TOWER, A SERIES OF SUPERPOSED TRAYS IN SAID TOWER, MEANS FOR INTRODUCING A LESS DENSE LIQUID INTO THE LOWER PROTION OF SAID TOWER, MEANS FOR INTRODUCING A MORE DENSE LIQUID, SUBSTANTIALLY IMMISCIBLE WITH SAID LESS DENSE LIQUID, INTO AN INTERMEDIATE PORTION OF SAID TOWER, SAID TOWER BEING PROVIDED WITH A TOP OUTLET FOR THE LESS DENSE LIQUID AND A BOTTOM OUTLET FOR THE MORE DENSE LIQUID, EACH OF SAID TRAYS BEING PROVIDED ADJACENT SETTLING SECTION, HEAT BEING FORMED TO PROVIDE AN ADJACENT SETTLING SECTION, HEAT EXCHANGER MEANS IN THE UPPER PORTION OF SAID TOWER FOR COOLING THE LESS DENSE LIQUID TO SEPARATE DENSE LIQUID THEREFROM, A COLLECTING TRAY BELOW SAID COOLING MEANS BUT ABOVE THE TOPMOST TRAY FOR COLLECTING THE SEPARATED MORE DENSE LIQUID, AND MEANS INCLUDING A DIP LEG FOR RETURNING THE COLLECTED MORE DENSE LIQUID TO A LOWER REGION IN SAID TOWER BELOW SAID MEANS FOR INTRODUCING THE MORE DENSE LIQUID INTO SAID TOWER.
Claim 2
Independent Claim
171 words
AN APPARATUS FOR COUNTERCURRENT CONTACTING OF SUBSTANTIALLY IMMISCIBLE LIQUIDS OF DIFFERENT DENSITIES INCLUDING A VERTICAL TOWER, A SERIES OF SUPERPOSED TRAYS IN SAID TOWER, MEANS FOR INTRODUCING A LESS DENSE LIQUID INTO THE LOWER PROTION OF SAID TOWER, MEANS FOR INTRODUCING A MORE DENSE LIQUID, SUBSTANTIALLY IMMISCIBLE WITH SAID LESS DENSE LIQUID, INTO AN INTERMEDIATE PORTION OF SAID TOWER, SAID TOWER BEING PROVIDED WITH A TOP OUTLET FOR THE LESS DENSE LIQUID AND A BOTTOM OUTLET FOR THE MORE DENSE LIQUID, EACH OF SAID TRAYS BEING PROVIDED ADJACENT SETTLING SECTION, HEAT BEING FORMED TO PROVIDE AN ADJACENT SETTLING SECTION, HEAT EXCHANGER MEANS IN THE UPPER PORTION OF SAID TOWER FOR COOLING THE LESS DENSE LIQUID TO SEPARATE DENSE LIQUID THEREFROM, A COLLECTING TRAY BELOW SAID COOLING MEANS BUT ABOVE THE TOPMOST TRAY FOR COLLECTING THE SEPARATED MORE DENSE LIQUID, AND MEANS INCLUDING A DIP LEG FOR RETURNING THE COLLECTED MORE DENSE LIQUID TO A LOWER REGION IN SAID TOWER BELOW SAID MEANS FOR INTRODUCING THE MORE DENSE LIQUID INTO SAID TOWER.
Claim 3
Dependent Claim
176 words
IN A METHOD FOR CONTACTING HYDROCARBON OIL WITH PHENOL, WHEREIN SAID OIL IS PASSED UPWARDLY THROUGH A CONTACTING ZONE AND A VERTICAL SERIES OF CONTACTING REGION IN SAID ZONE, AND SAID PHENOL IS PASSED DOWNWARDLY THROUGH SAID CONTACTING REGIONS IN SUBSTANTALLY COUNTERCURRENT FLOW RELATION TO SAID OIL, WHEREIN SAID OIL AND PHENOL ARE MIXED AND SEPARATED IN EACH REGION, AND WHEREIN INITALLY SAID OIL IS INTRODUCED INTO A LOWER CONTACTING REGION OF SAID SERIES AND SAID PHENOL INTO AN UPPER CONTACTING REGION OF SAID SERIES, THE STEPS WHICH COMPRISES COLLECTING CONTACTED OIL IN A SEPARATE REGION IN THE UPPER PORTION OF SAID ZONE AND ABOVE THE UPPERMOST CONTACTING REGION THEREIN AS SAID OIL IS DISCHARGED FROM SAID UPPERMOST CONTACTING REGION, COOLING SAID OIL IN SAID SEPARATE REGION TO REDUCE THE SOLUBILITY OF RESIDUAL PHENOL ABSORBED IN SAID OIL SEPARATING RESIDUAL PHENOL FROM SAID OIL IN SAID SEPARATE REGION, AND DISCHARGING SAID SEPERATED PHENOL FROM SAID SEPARATE REGION BY GRAVITY FLOW DIRECTLY INTO A CONTACTING REGION BELOW THAT CONTACTING REGION INTO WHICH SAID PHENOL IS INITALLY INTRODUCED.
Claim 4
Dependent Claim
176 words
IN A METHOD FOR CONTACTING HYDROCARBON OIL WITH PHENOL, WHEREIN SAID OIL IS PASSED UPWARDLY THROUGH A CONTACTING ZONE AND A VERTICAL SERIES OF CONTACTING REGION IN SAID ZONE, AND SAID PHENOL IS PASSED DOWNWARDLY THROUGH SAID CONTACTING REGIONS IN SUBSTANTALLY COUNTERCURRENT FLOW RELATION TO SAID OIL, WHEREIN SAID OIL AND PHENOL ARE MIXED AND SEPARATED IN EACH REGION, AND WHEREIN INITALLY SAID OIL IS INTRODUCED INTO A LOWER CONTACTING REGION OF SAID SERIES AND SAID PHENOL INTO AN UPPER CONTACTING REGION OF SAID SERIES, THE STEPS WHICH COMPRISES COLLECTING CONTACTED OIL IN A SEPARATE REGION IN THE UPPER PORTION OF SAID ZONE AND ABOVE THE UPPERMOST CONTACTING REGION THEREIN AS SAID OIL IS DISCHARGED FROM SAID UPPERMOST CONTACTING REGION, COOLING SAID OIL IN SAID SEPARATE REGION TO REDUCE THE SOLUBILITY OF RESIDUAL PHENOL ABSORBED IN SAID OIL SEPARATING RESIDUAL PHENOL FROM SAID OIL IN SAID SEPARATE REGION, AND DISCHARGING SAID SEPERATED PHENOL FROM SAID SEPARATE REGION BY GRAVITY FLOW DIRECTLY INTO A CONTACTING REGION BELOW THAT CONTACTING REGION INTO WHICH SAID PHENOL IS INITALLY INTRODUCED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |