US2910428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Upgrading light virgin naphtha
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1957-04-01
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Granted: 1959-10-27
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Expires: 1977-04-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur M Thomas
- 👤 Robert L Weeks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:06
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/34; C10G9/36; C10G47/00; C10G47/32; C10G9/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A METHOD OF UPGRADING A LIGHT VIRGIN NAPHTHA FEED HAVING A BOILING POINT IN THE RANGE OF 0* TO 200*F. WHICH COMPRISES THERMALLY CRACKING FROM 15 TO 25 MOL PERCENT OF THE NAPHTHA FEED WITH FROM 75 TO 85 MOL PERCENT STEAM AT A TEMPERATURE IN THE RANGE OF 1400* TO 1500*F. AND A PRESSURE OF 25 TO 45 P.S.I.A. FOR A RESIDENCE TIME BELOW ABOUT 1 SECOND TO OBTAIN A DRY GAS CONVERSION OF 60 TO 70 WT. PERCENT ON FEED WHEREBY A
Claim 2
Independent Claim
84 words
A METHOD OF UPGRADING A LIGHT VIRGIN NAPHTHA FEED HAVING A BOILING POINT IN THE RANGE OF 0* TO 200*F. WHICH COMPRISES THERMALLY CRACKING FROM 15 TO 25 MOL PERCENT OF THE NAPHTHA FEED WITH FROM 75 TO 85 MOL PERCENT STEAM AT A TEMPERATURE IN THE RANGE OF 1400* TO 1500*F. AND A PRESSURE OF 25 TO 45 P.S.I.A. FOR A RESIDENCE TIME BELOW ABOUT 1 SECOND TO OBTAIN A DRY GAS CONVERSION OF 60 TO 70 WT. PERCENT ON FEED WHEREBY A
References Cited (Backward Citations)
US2734809A
Cited
US2786802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |