US2554264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating hydrocarbon synthesis tail gas
Assignee: Standard Oil Development Co
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Filing: 1948-10-26
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Granted: 1951-05-22
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Expires: 1968-10-26
Abstract
No abstract record available.
Inventors
- 👤 William W Odell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:32
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0485
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN THE PROCESS OF REACTING CO WITH H2 AND MAKING SYNTHETIC HYDROCARBONS IN WHICH SOME OF THE TAIL GAS IS RECIRCULATED BACK TO THE REACTOR ALONG WITH THE FRESH FEED (GAS COMPRISING ESSENTIALLY CO+H2), THE STEP OF PREPARING THE TAIL GAS FOR SAID RECIRCULATION BY PASSING IT AS A STREAM UPWARDLY THROUGH AND IN CONTACT WITH A DOWNWARDLY FLOWING DEEP MASS OF FINELY DIVIDED HOT SOLIDS WHILE THE TEMPERATURE OF SAID SOLIDS IN AT LEAST A ZONE BETWEEN THE TOP AND BOTTOM OF SAID MASS IN SAID REACTOR IS BETWEEN ABOUT 1200* F. AND 1800* F. AT A RATE ADAPTED TO MAINTAIN SAID MASS IN SAID REACTOR IN A FLUIDIZED STATE, AT A CONTACT TIME GREATER THAN ONE SECOND AND SUFFICIENT TACT TIME GREATER THAN ONE SECOND AND SUFFICIENT SUBSTANTIALLY TO DECOMPOSE ACETYLENIC COMPOUNDS THEREBY BENEFICIATING SAID TAIL GAS.
Claim 2
Dependent Claim
139 words
IN THE PROCESS OF REACTING CO WITH H2 AND MAKING SYNTHETIC HYDROCARBONS IN WHICH SOME OF THE TAIL GAS IS RECIRCULATED BACK TO THE REACTOR ALONG WITH THE FRESH FEED (GAS COMPRISING ESSENTIALLY CO+H2), THE STEP OF PREPARING THE TAIL GAS FOR SAID RECIRCULATION BY PASSING IT AS A STREAM UPWARDLY THROUGH AND IN CONTACT WITH A DOWNWARDLY FLOWING DEEP MASS OF FINELY DIVIDED HOT SOLIDS WHILE THE TEMPERATURE OF SAID SOLIDS IN AT LEAST A ZONE BETWEEN THE TOP AND BOTTOM OF SAID MASS IN SAID REACTOR IS BETWEEN ABOUT 1200* F. AND 1800* F. AT A RATE ADAPTED TO MAINTAIN SAID MASS IN SAID REACTOR IN A FLUIDIZED STATE, AT A CONTACT TIME GREATER THAN ONE SECOND AND SUFFICIENT TACT TIME GREATER THAN ONE SECOND AND SUFFICIENT SUBSTANTIALLY TO DECOMPOSE ACETYLENIC COMPOUNDS THEREBY BENEFICIATING SAID TAIL GAS.
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) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |