US2581135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the removal of oxidizable sulfur compounds from a hydrocarbon gas mixture
Assignee: Standard Oil Development Co
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Filing: 1948-02-12
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Granted: 1952-01-01
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Expires: 1968-02-12
Abstract
No abstract record available.
Inventors
- 👤 William W Odell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:18
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/32; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; B01J8/26; C; C07; C07C; C07C7/00; C07C7/148; C07C7/14808; C07C7/14816
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A PROCESS FOR THE REMOVAL OF AT LEAST ONE IMPURITY SELECTED FROM THE GROUP CONSISTING OF HYDROGEN SULFIDE AND ORGANIC SULFUR COMPOUND FROM A HYDROCARBON GAS MIXTURE CONTAINING THE SAME WHICH COMPRISES MAINTAINING A DEEP BED OF TURBULENT FINELY-DIVIDED FLUIDIZED SOLIDS WHICH DO NOT CHEMICALLY REACT WITH THE IMPURITY IN A COMBUSTION ZONE, MAINTAINING SAID SOLIDS AT A TEMPERATURE ABOVE 300* C. BUT BELOW 450* C., PREHEATING THE HYDROCARBON GAS MIXTURE TO A TEMPERATURE OF ABOUT 300* C., PASSING THE PREHEATED GASEOUS MIXTURE MIXED WITH AN AMOUNT OF OXYGEN-CONTAINING GAS SUBSTANTIALLY CHEMICALLY EQUIVALENT TO THE AMOUNT OF IMPURITY PRESENT IN THE HYDROCARBON GAS UPWARDLY THROUGH SAID BED OF HOT SOLIDS IN THE COMBUSTION ZONE AT A VELOCITY OF 1 TO 5 FT./SEC. ADAPTED TO MAIN-
Claim 2
Dependent Claim
125 words
A PROCESS FOR THE REMOVAL OF AT LEAST ONE IMPURITY SELECTED FROM THE GROUP CONSISTING OF HYDROGEN SULFIDE AND ORGANIC SULFUR COMPOUND FROM A HYDROCARBON GAS MIXTURE CONTAINING THE SAME WHICH COMPRISES MAINTAINING A DEEP BED OF TURBULENT FINELY-DIVIDED FLUIDIZED SOLIDS WHICH DO NOT CHEMICALLY REACT WITH THE IMPURITY IN A COMBUSTION ZONE, MAINTAINING SAID SOLIDS AT A TEMPERATURE ABOVE 300* C. BUT BELOW 450* C., PREHEATING THE HYDROCARBON GAS MIXTURE TO A TEMPERATURE OF ABOUT 300* C., PASSING THE PREHEATED GASEOUS MIXTURE MIXED WITH AN AMOUNT OF OXYGEN-CONTAINING GAS SUBSTANTIALLY CHEMICALLY EQUIVALENT TO THE AMOUNT OF IMPURITY PRESENT IN THE HYDROCARBON GAS UPWARDLY THROUGH SAID BED OF HOT SOLIDS IN THE COMBUSTION ZONE AT A VELOCITY OF 1 TO 5 FT./SEC. ADAPTED TO MAIN-
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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) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |