US2711385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic reforming heat recovery and product separation
Assignee: Fluor Corp
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Filing: 1952-09-29
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Granted: 1955-06-21
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Expires: 1972-09-29
Abstract
No abstract record available.
Inventors
- 👤 Joe C Hannah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:05
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G2300/00; C10G2300/20; C10G2300/30; C10G2300/305; C10G2400/00; C10G2400/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
THE METHOD THAT INCLUDES HEATING A STREAM, OF RELATIVELY LOW BOILING HYDROCARBONS AND PASSING THE STREAM THROUGH A REACTOR ZONE CONTAINING A SOLID PARTICLE CATALYST, INTRODUCING THE HYDROCARBONS AND ENTRAINED CATALYST PARTICLES FROM THE REACTOR ZONE INTO AND UPWARDLY WITHIN A VERTICALLY EXTENDED QUENCH ZONE, PASSING THE VAPORS FROM THE QUENCH ZONE THROUGH A FRACTIONATING ZONE FROM WHICH VAPORS AND UNVAPORIZED HYDROCARBONS ARE SEPARATELY REMOVED, CONTINUOUSLY CIRCULATING A STREAM OF HIGH BOILING CYCLE STOCK HYDROCARBONS DERIVED FROM AN EXTRANEOUS SOURCE THROUGH SAID QUENCH ZONE IN INTIMATE CONTACT WITH THE VAPORS THEREIN AND THENCE THROUGH A HEAT EXCHANGE ZONE IN INDIRECT HEAT TRANSFER RELATION WITH UNVAPORIZED HYDROCARBONS FROM SAID FRACTIONATING ZONE, AND REMOVING FROM SAID QUENCH ZONE A SIDE STREAM OF THE CYCLE STOCK CARRYING CATALYST PARTICLES SEPARATED FROM THE VAPORS.
Claim 2
Independent Claim
130 words
THE METHOD THAT INCLUDES HEATING A STREAM, OF RELATIVELY LOW BOILING HYDROCARBONS AND PASSING THE STREAM THROUGH A REACTOR ZONE CONTAINING A SOLID PARTICLE CATALYST, INTRODUCING THE HYDROCARBONS AND ENTRAINED CATALYST PARTICLES FROM THE REACTOR ZONE INTO AND UPWARDLY WITHIN A VERTICALLY EXTENDED QUENCH ZONE, PASSING THE VAPORS FROM THE QUENCH ZONE THROUGH A FRACTIONATING ZONE FROM WHICH VAPORS AND UNVAPORIZED HYDROCARBONS ARE SEPARATELY REMOVED, CONTINUOUSLY CIRCULATING A STREAM OF HIGH BOILING CYCLE STOCK HYDROCARBONS DERIVED FROM AN EXTRANEOUS SOURCE THROUGH SAID QUENCH ZONE IN INTIMATE CONTACT WITH THE VAPORS THEREIN AND THENCE THROUGH A HEAT EXCHANGE ZONE IN INDIRECT HEAT TRANSFER RELATION WITH UNVAPORIZED HYDROCARBONS FROM SAID FRACTIONATING ZONE, AND REMOVING FROM SAID QUENCH ZONE A SIDE STREAM OF THE CYCLE STOCK CARRYING CATALYST PARTICLES SEPARATED FROM THE VAPORS.
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) | 1958-06-20 | 1958-12-20 | 1959-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-20 | 1962-12-20 | 1963-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-20 | 1966-12-20 | 1967-06-21 | $7700.00 | Window Closed / Lapsed |