US3598881A
Expired / Lapsed
US
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Process for removing acid gases from cracked gases containing diolefins
Assignee: Lummus Technology LLC
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Filing: 1968-10-17
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Granted: 1971-08-10
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Expires: 1988-10-17
Abstract
Abstract PROCESS FOR REMOVING DIENES WHICH ARE CARRIED INTO AN AQUEOUS AMINE ABSORPTION SOLUTION EMPLOYED FOR REMOVING ACID GASES FROM A GASEOUS HYDROCARBON WHEREIN THE RICH AQUEOUS AMINE SOLUTION IS INTIMATELY MIXED WITH A HYDROCARBON SOLVENT, PRIOR TO INTRODUCING THE RICH AMINE SOLUTION INTO THE AMINE REGENERATOR, TO REMOVE THE DIENES THEREFROM. THE MIXTURE IS SEPARATED INTO A HYDROCARBON PHASE, CONTAINING ESSENTIALLY ALL OF THE DIENES AND AN AQUEOUS AMINE PAHSE, AND THE AQUEOUS AMINE PHASE PASSED TO THE AMINE REGENERATOR. IN THIS MANNER, POLYMERIZATION PROBLEMS CAUSED BY THE PRESENCE OF DIENES IN THE AMINE ABSORPTION SYSTEM ARE ESSENTIALLY ELIMINATED.
Inventors
- 👤 Ludwig Kniel
- 👤 Benjamin J Luberoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:14
CPC Classifications
C; C10; C10K; C10K1/00; C10K1/08; C10K1/10; C10K1/12; C10K1/14; C10K1/143; B; B01; B01D; B01D53/00; B01D53/14; B01D53/1456; B01D53/34; B01D53/46; B01D53/48; B01D53/52; B01D53/526; C07; C07C; C07C7/00; C07C7/11; Y; Y02; Y02P; Y02P30/00; Y02P30/40
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |