US3124526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rhigh boiling
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
•
Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:59
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/009; C; C10; C10G; C10G49/00; C10G49/002; C10G65/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
THE METHOD OF CATALYTICALLY HYDROGENATING HEAT SENSITITIVE NAPHTHA FEED STOCKS THAT TEND TO FORM A DEPOSIT UPON A HEAT TRANSFER SURFACE WHEN PREHEATED TO A TEMPERATURE ABOVE ABOUT 250-350*F. AND WHICH TEND TO FORM AND EXCESSIVE AMOUNT OF CARBONACEOUS DEPOSITE UPON HYDROGENATING CATALYST IN A REACTION ZONE, WHICH COMPRISES MIXING THE SAID NAPHTHA FEED STOCK WITH A HIGHER BOILING GAS OIL, INTRODUCING THE RESULTANT MIXTURE AT ABOUT THE MID-SECTION OF A VERTICAL REACTION ZONE CONTAINING A HYDROGENATION-DEHYDROGENATION CATALYST, SUPPLYING HEAT TO SAID REACTION ZONE AND MAINTAINING IT AT A TEMPERATURE OF ABOUT 400*800*F. AND AT A PRESSURE OF ABOUT 50-500 P.S.I.G. TO VAPORIZE SAID NAPHTHA IN SAID REACTION ZONE AND AT LEAST A PORTION OF THE GAS OIL, PASSING NAPHTHA VAPORS UPWARDLY THROUGH THE UPPER PORTION OF SAID REACTION ZONE,
Claim 2
Independent Claim
130 words
THE METHOD OF CATALYTICALLY HYDROGENATING HEAT SENSITITIVE NAPHTHA FEED STOCKS THAT TEND TO FORM A DEPOSIT UPON A HEAT TRANSFER SURFACE WHEN PREHEATED TO A TEMPERATURE ABOVE ABOUT 250-350*F. AND WHICH TEND TO FORM AND EXCESSIVE AMOUNT OF CARBONACEOUS DEPOSITE UPON HYDROGENATING CATALYST IN A REACTION ZONE, WHICH COMPRISES MIXING THE SAID NAPHTHA FEED STOCK WITH A HIGHER BOILING GAS OIL, INTRODUCING THE RESULTANT MIXTURE AT ABOUT THE MID-SECTION OF A VERTICAL REACTION ZONE CONTAINING A HYDROGENATION-DEHYDROGENATION CATALYST, SUPPLYING HEAT TO SAID REACTION ZONE AND MAINTAINING IT AT A TEMPERATURE OF ABOUT 400*800*F. AND AT A PRESSURE OF ABOUT 50-500 P.S.I.G. TO VAPORIZE SAID NAPHTHA IN SAID REACTION ZONE AND AT LEAST A PORTION OF THE GAS OIL, PASSING NAPHTHA VAPORS UPWARDLY THROUGH THE UPPER PORTION OF SAID REACTION ZONE,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |