US2742518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Naphtha from fluid coking of residua
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1951-05-31
•
Granted: 1956-04-17
•
Expires: 1971-05-31
Abstract
No abstract record available.
Inventors
- 👤 William J Mattox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:54
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/28; C10G9/32; C10G2400/00; C10G2400/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A METHOD WHICH COMPRISES COKING A PETROLEUM RESIDUUM STOCK IN A FLUIDIZED BED OF SUBSTANTIALLY INERT CONTACT MATERIAL AT TEMPERATURES OF 1000-1200* F. AND SUBJECTING A MIXTURE OF THE REACTION PRODUCTS FROM SAID COKING PROCESS BOILING BELOW ABOUT 430* F., AND A NAPHTHA STOCK RICH IN NAPHTHENES TO TREATMENT IN CONTACT WITH A CHROMITE HYDROGENATION CATALYST EFFECTIVE FOR THE CONVERSION OF DIOLEFINIC AND ACETYLENIC COMPOUNDS TO MONOOLEFINS BUT WHICH IS RELATIVELY INACTIVE FOR THE HYDROGENATION OF MONOOLEFINS TO PARAFFINS THEREBY SELECTIVELY CONVERTING THE DIOLEFINIC AND ACETYLENIC COMPONENTS TO MONOOLEFINS.
Claim 2
Independent Claim
89 words
A METHOD WHICH COMPRISES COKING A PETROLEUM RESIDUUM STOCK IN A FLUIDIZED BED OF SUBSTANTIALLY INERT CONTACT MATERIAL AT TEMPERATURES OF 1000-1200* F. AND SUBJECTING A MIXTURE OF THE REACTION PRODUCTS FROM SAID COKING PROCESS BOILING BELOW ABOUT 430* F., AND A NAPHTHA STOCK RICH IN NAPHTHENES TO TREATMENT IN CONTACT WITH A CHROMITE HYDROGENATION CATALYST EFFECTIVE FOR THE CONVERSION OF DIOLEFINIC AND ACETYLENIC COMPOUNDS TO MONOOLEFINS BUT WHICH IS RELATIVELY INACTIVE FOR THE HYDROGENATION OF MONOOLEFINS TO PARAFFINS THEREBY SELECTIVELY CONVERTING THE DIOLEFINIC AND ACETYLENIC COMPONENTS TO MONOOLEFINS.
References Cited (Backward Citations)
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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) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |