US2914460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for aromatization of light naphthas
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1956-05-29
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Granted: 1959-11-24
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Expires: 1976-05-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles Newton Kimberlin
- 👤 Mattox William Judson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:13
CPC Classifications
C; C10; C10G; C10G61/00; C10G61/02; C10G61/06; B; B01; B01J; B01J23/00; B01J23/90; B01J23/96
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A METHOD FOR PRODUCING HIGH OCTANE NUMBER, HIGHLY AROMATIC PRODUCTS FROM HYDROCARBON FRACTIONS BOILING IN THE RANGE OF FROM ABOUT 150* TO 200* F. WHICH HYDROGENCONTACTING SAID FRACTIONS IN ADMIXTURE WITH A HYDROGENRICH GAS WITH A CATAALYST CONSISTING OF A PLATINUM GROUP METAL DISPERSED UPON ALUMINA AT TEMPERATURES OF 875* 950* F. AND AT PRESSURES OF ABOUT 50 P.S.I.G., MAINTAINING SAID HYDROCARBONS IN CONTACT WITH CATALYST FOR A PERIOD SUFFICIENT TO PRODUCE A C5+ HYDROFORMATE HAVING A RESEARCH CLEAR OCTANE NUMBER OF ABOUT 80, SEPARATING THE HYDROFORMATE FROM THE ACCOMPANYING NORMALLY GASEOUS MATERIALS, SUBJECTING THE LIQUID HYDROFORMATE TO SOLVENT EXTRACTION TO OBTAIN AN AROMATIC-RICH EXTRACT PHASE AND AN AROMATIC-POOR RAFFINATE, AND RECYCLING THE RAFFINATE PHASE TO THE HYDROFORMING STEP.
Claim 2
Independent Claim
119 words
A METHOD FOR PRODUCING HIGH OCTANE NUMBER, HIGHLY AROMATIC PRODUCTS FROM HYDROCARBON FRACTIONS BOILING IN THE RANGE OF FROM ABOUT 150* TO 200* F. WHICH HYDROGENCONTACTING SAID FRACTIONS IN ADMIXTURE WITH A HYDROGENRICH GAS WITH A CATAALYST CONSISTING OF A PLATINUM GROUP METAL DISPERSED UPON ALUMINA AT TEMPERATURES OF 875* 950* F. AND AT PRESSURES OF ABOUT 50 P.S.I.G., MAINTAINING SAID HYDROCARBONS IN CONTACT WITH CATALYST FOR A PERIOD SUFFICIENT TO PRODUCE A C5+ HYDROFORMATE HAVING A RESEARCH CLEAR OCTANE NUMBER OF ABOUT 80, SEPARATING THE HYDROFORMATE FROM THE ACCOMPANYING NORMALLY GASEOUS MATERIALS, SUBJECTING THE LIQUID HYDROFORMATE TO SOLVENT EXTRACTION TO OBTAIN AN AROMATIC-RICH EXTRACT PHASE AND AN AROMATIC-POOR RAFFINATE, AND RECYCLING THE RAFFINATE PHASE TO THE HYDROFORMING STEP.
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) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |