Patent US2607657A successfully refreshed from Google Patents.
US2607657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extraction of high acidic concentrations from gases
Assignee: Fluor Corp
•
Filing: 1948-12-27
•
Granted: 1952-08-19
•
Expires: 1968-12-27
Abstract
No abstract record available.
Inventors
- 👤 Ira C Bechtold
- 👤 Arthur L Kohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:09
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; B01D53/52; B01D53/526
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
THE PROCESS OF TREATING A GASEOUS MIXTURE FOR THE REMOVAL OF AN ACIDIC CONSTITUENT THEREOF CONSTITUTING A HIGH PERCENTAGE OF THE MIXTURE, THAT INCLUDES CONTACTING THE MIXTURE AND REACTING THE ACIDIC CONSTITUENT WITH A LIQUID BASIC ABSORBENT IN A FIRST CONTACTING ZONE TO EFFECT PARTIAL ABSORPTION OF THE ACIDIC GAS, SIMULTANEOUSLY PASSING A COOLING FLUID IN INDIRECT HEAT EXCHANGE RELATION WITH THE MIXTURE IN SAID ZONE TO REMOVE HEAT OF REACTION, SEPARATING THE PARTIALLY PURIFIED RESIDUAL GASES FROM THE ABSORBENT, CONTACTING SAID RESIDUAL GASES WITH AN ABSORBENT OF THE SAME COMPOSITION IN A SECOND CONTACTING ZONE, HEATING AND REGENERATING THE ABSORBENT, AND RETURNING THE REGENERATED ABSORBENT TO SAID ZONES.
Claim 2
Dependent Claim
109 words
THE PROCESS OF TREATING A GASEOUS MIXTURE FOR THE REMOVAL OF AN ACIDIC CONSTITUENT THEREOF CONSTITUTING A HIGH PERCENTAGE OF THE MIXTURE, THAT INCLUDES CONTACTING THE MIXTURE AND REACTING THE ACIDIC CONSTITUENT WITH A LIQUID BASIC ABSORBENT IN A FIRST CONTACTING ZONE TO EFFECT PARTIAL ABSORPTION OF THE ACIDIC GAS, SIMULTANEOUSLY PASSING A COOLING FLUID IN INDIRECT HEAT EXCHANGE RELATION WITH THE MIXTURE IN SAID ZONE TO REMOVE HEAT OF REACTION, SEPARATING THE PARTIALLY PURIFIED RESIDUAL GASES FROM THE ABSORBENT, CONTACTING SAID RESIDUAL GASES WITH AN ABSORBENT OF THE SAME COMPOSITION IN A SECOND CONTACTING ZONE, HEATING AND REGENERATING THE ABSORBENT, AND RETURNING THE REGENERATED ABSORBENT TO SAID ZONES.
References Cited (Backward Citations)
US2177068A
Cited
US2477314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |