Patent US2494794A successfully refreshed from Google Patents.
US2494794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of hydrocarbon treatment and regeneration
Assignee: Gulf Oil Corp
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Filing: 1948-01-05
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Granted: 1950-01-17
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Expires: 1968-01-05
Abstract
No abstract record available.
Inventors
- 👤 William S Bonnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:34
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN THE PROCESS OF CRACKING A HYDROCARBON OIL BY CONTACTING VAPORS THEREOF WITH HEATED CATALYST PELLETS MOVING DOWNWARDLY BY GRAVITY THROUGH A REACTOR FOLLOWED BY REGENERATION OF THE CATALYST PELLETS BY INTRODUCING THEM INTO THE TOP OF AN APPROXIMATELY VERTICAL REGENERATOR THROUGH WHICH THEY PASS DOWNWARDLY BY GRAVITY WHILE AT ELEVATED TEMPERATURE AND WHILE IN CONTACT WITH OXYGEN CONTAINING GAS, THE IMPROVEMENT WHICH COMPRISES INTRODUCING PREVIOUSLY REGENERATED CATALYST PELLETS INTO A REGENERATOR AGAINST THE TOP OF A WALL OF THE REGENERATOR WHICH DURING REGENERATION BECOMES OVERHEATED WHEREBY THE REGENERATED CATALYST PELLETS FLOW DOWNWARDLY ALONG THE WALL OF THE REGENERATOR WHICH TENDS TO BECOME OVERHEATED AND DUE TO THE LACK OF COMBUSTIBLE MATERIAL THEREON CAUSE A REDUCTION IN THE TEMPERATURE OF THE REGENERATOR WILL.
Claim 2
Dependent Claim
123 words
IN THE PROCESS OF CRACKING A HYDROCARBON OIL BY CONTACTING VAPORS THEREOF WITH HEATED CATALYST PELLETS MOVING DOWNWARDLY BY GRAVITY THROUGH A REACTOR FOLLOWED BY REGENERATION OF THE CATALYST PELLETS BY INTRODUCING THEM INTO THE TOP OF AN APPROXIMATELY VERTICAL REGENERATOR THROUGH WHICH THEY PASS DOWNWARDLY BY GRAVITY WHILE AT ELEVATED TEMPERATURE AND WHILE IN CONTACT WITH OXYGEN CONTAINING GAS, THE IMPROVEMENT WHICH COMPRISES INTRODUCING PREVIOUSLY REGENERATED CATALYST PELLETS INTO A REGENERATOR AGAINST THE TOP OF A WALL OF THE REGENERATOR WHICH DURING REGENERATION BECOMES OVERHEATED WHEREBY THE REGENERATED CATALYST PELLETS FLOW DOWNWARDLY ALONG THE WALL OF THE REGENERATOR WHICH TENDS TO BECOME OVERHEATED AND DUE TO THE LACK OF COMBUSTIBLE MATERIAL THEREON CAUSE A REDUCTION IN THE TEMPERATURE OF THE REGENERATOR WILL.
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) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |