Patent US2848381A successfully refreshed from Google Patents.
US2848381A
Expired / Lapsed
US
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Gas-solids separation in high temperature coking
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1953-12-16
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Granted: 1958-08-19
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Expires: 1973-12-16
Abstract
No abstract record available.
Inventors
- 👤 Edward W S Nicholson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:23
CPC Classifications
C; C10; C10B; C10B55/00; C10B55/02; C10B55/04; C10B55/08; C10B55/10; Y; Y10; Y10S; Y10S261/00; Y10S261/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A CHEMICALS COKING PROCESS COMPRISING CONTACTING A HYDROCARBON OIL WITH PARTICULATE SOLIDS AT A TEMPERATURE ABOVE 1250*F. IN A TRANSFER LINE ZONE, CYCLONICALLY SEPARATING THE SUSPENSION SO FORMED IN A SEPARATION ZONE, REMOVING OVERHEAD FROM SAID SEPARATION ZONE GASIFORM CONVERSION PRODUCTS, COLLECTING SEPARATED SOLIDS IN THE LOWER PORTION OF SAID SEPARATION ZONE DOWNWARDLY WITHDRAWING THE COLLECTED SOLIDS FROM SAID SEPARATION ZONE AS A CONFINED STREAM THROUGH A DOWNWARDLY EXTENDING CONFINED CONDUIT HAVING A BENTURI CONSTRICTION, AND DIREACTING A HIGH VELOCITY FLUID STREAM DOWNWARDLY INTO SAID CONSTRICTION RESPONSIVE TO THE BUILD UP OF COLLECTED SOLIDS IN THE LOWER PORTION OF THE SEPARATION ZONE WHEREBY SAID COLLECTED SOLIDS ARE FORCIBLY AND RAPIDLY WITHDRAWN.
Claim 2
Dependent Claim
111 words
A CHEMICALS COKING PROCESS COMPRISING CONTACTING A HYDROCARBON OIL WITH PARTICULATE SOLIDS AT A TEMPERATURE ABOVE 1250*F. IN A TRANSFER LINE ZONE, CYCLONICALLY SEPARATING THE SUSPENSION SO FORMED IN A SEPARATION ZONE, REMOVING OVERHEAD FROM SAID SEPARATION ZONE GASIFORM CONVERSION PRODUCTS, COLLECTING SEPARATED SOLIDS IN THE LOWER PORTION OF SAID SEPARATION ZONE DOWNWARDLY WITHDRAWING THE COLLECTED SOLIDS FROM SAID SEPARATION ZONE AS A CONFINED STREAM THROUGH A DOWNWARDLY EXTENDING CONFINED CONDUIT HAVING A BENTURI CONSTRICTION, AND DIREACTING A HIGH VELOCITY FLUID STREAM DOWNWARDLY INTO SAID CONSTRICTION RESPONSIVE TO THE BUILD UP OF COLLECTED SOLIDS IN THE LOWER PORTION OF THE SEPARATION ZONE WHEREBY SAID COLLECTED SOLIDS ARE FORCIBLY AND RAPIDLY WITHDRAWN.
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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) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |