US2818323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purification of gases with an amine impregnated solid absorbent
Assignee: Universal Oil Products Co
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Filing: 1953-10-07
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Granted: 1957-12-31
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Expires: 1973-10-07
Abstract
No abstract record available.
Inventors
- 👤 Haensel Vladimir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:39
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/06; B01D53/10; B01D53/12; C; C10; C10K; C10K3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A CONTINUOUS METHOD FOR PURIFYING AN ACIDIC GASCONTDAINING STREAM WHICH COMPRISES PASSING SAID ACIDIC GAS-CONTAINING STREAM INTO THE LOWER PORTION OF A CONTACTING ZONE CONTAINING DRY, SUBDIVIDED SOLID PARTICLFES COMPRISING AN ADSORPTIVE SOLID AND AN ALIPHATIC AMINE AT A VELOCITY SUFFICIENT TO MAINTAIN SAID SOLID IN A FLUIDIZED BED, CONTACTING SAID STREAM WITDH SAID PARTICLES AT AN ACIDIC GAS ABSORBING TEMPERATURE NOT IN EXCESS TO 300* F., SSEPARATING A RESULTANT PURIFIED GAS STREAM FROM SAID FLUIDIZED BED, PASSING SAID PURIFIED STREAM FROM SAID CONTACTING ZONE, PASSING AT LEAST A PORTION OF THE SOLID PARTICLES FROM SAID CONTACTING ZONE INTOK A REGENERATION ZONE AND THEREIN REGENERATING THE SAME BY CONTACT WITH A REDUCING GAS AT A REGENERATING TEMPARATURE NOT IN EXCESS OF 300* F. AND RDETURNING REGENERATED PARTICLES TO SAID CONTACTING ZONE
Claim 2
Dependent Claim
131 words
A CONTINUOUS METHOD FOR PURIFYING AN ACIDIC GASCONTDAINING STREAM WHICH COMPRISES PASSING SAID ACIDIC GAS-CONTAINING STREAM INTO THE LOWER PORTION OF A CONTACTING ZONE CONTAINING DRY, SUBDIVIDED SOLID PARTICLFES COMPRISING AN ADSORPTIVE SOLID AND AN ALIPHATIC AMINE AT A VELOCITY SUFFICIENT TO MAINTAIN SAID SOLID IN A FLUIDIZED BED, CONTACTING SAID STREAM WITDH SAID PARTICLES AT AN ACIDIC GAS ABSORBING TEMPERATURE NOT IN EXCESS TO 300* F., SSEPARATING A RESULTANT PURIFIED GAS STREAM FROM SAID FLUIDIZED BED, PASSING SAID PURIFIED STREAM FROM SAID CONTACTING ZONE, PASSING AT LEAST A PORTION OF THE SOLID PARTICLES FROM SAID CONTACTING ZONE INTOK A REGENERATION ZONE AND THEREIN REGENERATING THE SAME BY CONTACT WITH A REDUCING GAS AT A REGENERATING TEMPARATURE NOT IN EXCESS OF 300* F. AND RDETURNING REGENERATED PARTICLES TO SAID CONTACTING ZONE
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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) | 1960-12-30 | 1961-07-01 | 1961-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-30 | 1965-07-01 | 1965-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-30 | 1969-07-01 | 1969-12-31 | $7700.00 | Window Closed / Lapsed |