US2867576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reforming straight-run naphtha
Assignee: Sunoco Inc
•
Filing: 1955-10-14
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Granted: 1959-01-06
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Expires: 1975-10-14
Abstract
No abstract record available.
Inventors
- 👤 Earl M Honeycutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:06
CPC Classifications
C; C10; C10G; C10G59/00; C10G59/06; C10G2400/00; C10G2400/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A REFORMING PROCESS WHICH COMPRISES DISTILLING A PETROLEUM FRACTION CONTAINING NAPHTHENES AND BOILING BELOW ABOUT 425* F. INTO A HIGHER AND A LOWER BOILING FRACTION, REFORMING SAID HIGHER BOILING FRACTION IN THE PRESENCE OF HYDROGEN AND A HYDROGENATION-DEHYDROGENATION CATALYST IN A FIRST REFORMING ZONE AT A TEMPERATURE BETWEEN ABOUT 850* F. AND 950* F., AND AT A PRESSURE OF FROM ABOUT 300 P. S. I. G. TO ABOUT 600 P. S. I. G., RECOVERING A FIRST REFORMATE FROM SAID FIRST REFORMING ZONE, SEPARATING THE FIRST REFORMATE INTO AN AROMATIC FRACTION AND A PARAFFINIC FRACTION, ADMIXING THE PARAFFINIC FRACTION WITH THE SAID LOWER BOILING PETROLEUM FRACTION, AND REFORMING THE MIXTURE IN THE PRESENCE OF HYDROGEN AND A HYDROGENATION-DEHYDROGENATION CATALYST IN A SECOND REFORMING ZONE AT A TEMPERATURE BETWEEN ABOUT 875* F. AND 975* F. AND AT A PRESSURE OF FROM ABOUT 100 P. S. I. G. TO ABOUT 500 P. S. I. G., REFORMING CONDITIONS IN THE SECOND REFORMING ZONE BEING MORE SEVERE THAN IN THE FIRST REFORMING ZONE.
Claim 2
Dependent Claim
168 words
A REFORMING PROCESS WHICH COMPRISES DISTILLING A PETROLEUM FRACTION CONTAINING NAPHTHENES AND BOILING BELOW ABOUT 425* F. INTO A HIGHER AND A LOWER BOILING FRACTION, REFORMING SAID HIGHER BOILING FRACTION IN THE PRESENCE OF HYDROGEN AND A HYDROGENATION-DEHYDROGENATION CATALYST IN A FIRST REFORMING ZONE AT A TEMPERATURE BETWEEN ABOUT 850* F. AND 950* F., AND AT A PRESSURE OF FROM ABOUT 300 P. S. I. G. TO ABOUT 600 P. S. I. G., RECOVERING A FIRST REFORMATE FROM SAID FIRST REFORMING ZONE, SEPARATING THE FIRST REFORMATE INTO AN AROMATIC FRACTION AND A PARAFFINIC FRACTION, ADMIXING THE PARAFFINIC FRACTION WITH THE SAID LOWER BOILING PETROLEUM FRACTION, AND REFORMING THE MIXTURE IN THE PRESENCE OF HYDROGEN AND A HYDROGENATION-DEHYDROGENATION CATALYST IN A SECOND REFORMING ZONE AT A TEMPERATURE BETWEEN ABOUT 875* F. AND 975* F. AND AT A PRESSURE OF FROM ABOUT 100 P. S. I. G. TO ABOUT 500 P. S. I. G., REFORMING CONDITIONS IN THE SECOND REFORMING ZONE BEING MORE SEVERE THAN IN THE FIRST REFORMING ZONE.
References Cited (Backward Citations)
US2304183A
Cited
US2698829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |