Patent US2608461A successfully refreshed from Google Patents.
US2608461A
Expired / Lapsed
US
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Prevention of amine losses in gas treating systems
Assignee: Fluor Corp
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Filing: 1949-03-26
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Granted: 1952-08-26
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Expires: 1969-03-26
Abstract
No abstract record available.
Inventors
- 👤 Henry D Frazier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:42
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; B01D53/52; B01D53/526
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
THE METHOD THAT INCLUDES CONTINUOUSLY CIRCULATING A SOLUTION OF A LIQUID AMINE THROUGH A HEATING AND REGENERATING ZONE AND THEN FROM AN INLET DOWNWARDLY THROUGH A CONTACTING ZONE, PASSING GAS CONTAINING AN ACIDIC CONSTITUENT OF THE GROUP CONSISTING OF HYDROGEN SULFIDE AND CARBON DIOXIDE AND REACTIVE WITH THE AMINE UPWARDLY THROUGH AND OUT OF SAID ZONE IN CONTACT WITH THE AMINE SOLUTION, INTRODUCING CARBON DIOXDE TO THE GAS TREATED BY CONTACT WITH THE SOLUTION AND AT A LOCATION BEYOND SAID INLET TO CONVERT AMINE ENTRAINED IN THE GAS TO A RELATIVELY HIGH MOLECULAR WEIGHT AND LOW VAPOR PRESSURE REACTION PRODUCT
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) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |