Patent US3105748A successfully refreshed from Google Patents.
US3105748A
Expired / Lapsed
US
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Method and system for drying gas and reconcentrating the drying absorbent
Assignee: Parkersburg Rig and Reel Co
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Filing: 1957-12-09
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Granted: 1963-10-01
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Expires: 1977-12-09
Abstract
No abstract record available.
Inventors
- 👤 Stahl Willi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:11
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411; F24F3/1417; B; B01; B01D; B01D53/00; B01D53/26; F24F2003/144; F24F2003/1458; Y; Y10; Y10S; Y10S159/00; Y10S159/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
AN ABSORBER SYSTEM FOR DRYING GAS COMPRISING, AN ABSORBER IN WHICH A GAS STREAM IS DRIED BY A LIQUID ABSORBENT, A REBOILER RECEIVING THE RICH ABSORBENT FROM THE ABSORBER AND VAPORIZING A PORTION OF THE SOLUTE TO RECONCENTRATE THE ABSORBENT, A SUPERDRYER CONNECTED TO THE ABSORBENT OUTLET OF THE REBOILER AND FILMING THE ABSORBENT, CONDUIT MEANS BETWEEN THE ABSORBER AND THE SUPERDRYER TO SUPPLY A SMALL PORTION OF THE GAS FROM THE ABSORBER TO THE SUPERDRYER TO FURTHER RECONCENTRATE THE ABSORBENT, A REFLUX STRIPPER COLUMN RECEIVING VAPORS FROM THE REBOILER AND GAS FROM THE SUPERDRYER AND STRIPPING ABSORBENT THEREFROM, AND A HEAT EXCHANGER AT THE OUTLET OF THE REFLUX STRIPPER COLUMN CONDUCTING THE COLD, RICH ABSORBENT FROM THE ABSORBER IN INDIRECT HEAT EXCHANGE WITH THE GAS AND VAPORS FROM THE STRIPPER COLUMN TO CONDENSE A PORTION OF THE VAPORS FROM THE REFLUX STRIPPER COLUMN TO PROVIDE ADDITIONAL REFLUX LIQUID.
Claim 2
Independent Claim
89 words
THE METHOD OF RECONCENTRATING A SOLUTION OF TRIETHYLENE GLYCOL AND WATER COMPRISING THE STEPS OF, HEATING THE SOLUTION TO RECONCENTRATE THE SOLUTION TO A CONCENTRATION OF AT LEAST APPROXIMATELY 98% BY WEIGHT TRIETHYLENE GLYCOL BY BOILING OFF VAPORS, SEPARATING SAID VAPORS FROM SAID LIQUID SOLUTION AND STRIPPING TRIETHYLENE VAPORS THEREFROM, CONDUCTING THE PARTIALLY RECONCENTRATED SOLUTON TO A SUBSEQUENT TREATING AREA, THEN SPREADING THE PARTIALLY RECONCENTRATED SOLUTION INTO MULTIPLE THIN FILMS AND INTIMATELY CONTACTING THE FILMED PARTIALLY RECONCENTRATED SOLUTION WITH A DRY TURBULENT GAS STREAM TO FURTHER RECONCENTRATE THE SOLUTION.
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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |