US3113844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halide catalytic cracking
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1960-05-06
•
Granted: 1963-12-10
•
Expires: 1980-05-06
Abstract
No abstract record available.
Inventors
- 👤 Charles E Hemminger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:01
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
AN APPARATUS INCLUDING IN COMBINATION A VERTICALLY ARRANGED ELONGATED VESSEL PROVIDED WITH A CONTACTING CHAMBER IN ITS LOWER PORTION AND A FRACTIONATING TOWER IN ITS UPPER PORTION, MEANS FOR INTRODUCING A REACTANT AND CATALYST INTO SAID CONTACTING CHAMBER FOR CONTACTING THEREIN, MEANS FOR WITHDRAWING A LIQUID MIXTURE FROM SAID CONTACTING CHAMBER AND HEATING IT AND RETURNING IT TO THE BOTTOM PORTION OF SAID CONTACTING ZONE TO SUPPLY HEAT THERETO AND TO FORM REACTION VAPOROUS PRODUCTS WHICH PASS UP AND ARE FRACTIONATED IN SAID FRACTIONATING TOWER, PIPES AT DIFFERENT LEVELS FOR WITHDRAWING A PLURALITY OF LIQUID FRACTIONS FROM SAID FRACTIONATING TOWER, A STRIPPING TOWER CONNECTED DIRECTLY TO EACH PIPE, A PIPE FOR EACH TOWER AND COMMUNICATING WITH THE BOTTOM OF EACH STRIPPING TOWER FOR INTRODUCING STRIPPING GAS INTO THE BOTTOM OF THE STRIPPING TOWERS TO STRIP OFF CATALYST FROM EACH WITHDRAWN FRACTION, A SCRUBBING VESSEL, MEANS FOR PASSING SAID STRIPPED
Claim 2
Independent Claim
149 words
AN APPARATUS INCLUDING IN COMBINATION A VERTICALLY ARRANGED ELONGATED VESSEL PROVIDED WITH A CONTACTING CHAMBER IN ITS LOWER PORTION AND A FRACTIONATING TOWER IN ITS UPPER PORTION, MEANS FOR INTRODUCING A REACTANT AND CATALYST INTO SAID CONTACTING CHAMBER FOR CONTACTING THEREIN, MEANS FOR WITHDRAWING A LIQUID MIXTURE FROM SAID CONTACTING CHAMBER AND HEATING IT AND RETURNING IT TO THE BOTTOM PORTION OF SAID CONTACTING ZONE TO SUPPLY HEAT THERETO AND TO FORM REACTION VAPOROUS PRODUCTS WHICH PASS UP AND ARE FRACTIONATED IN SAID FRACTIONATING TOWER, PIPES AT DIFFERENT LEVELS FOR WITHDRAWING A PLURALITY OF LIQUID FRACTIONS FROM SAID FRACTIONATING TOWER, A STRIPPING TOWER CONNECTED DIRECTLY TO EACH PIPE, A PIPE FOR EACH TOWER AND COMMUNICATING WITH THE BOTTOM OF EACH STRIPPING TOWER FOR INTRODUCING STRIPPING GAS INTO THE BOTTOM OF THE STRIPPING TOWERS TO STRIP OFF CATALYST FROM EACH WITHDRAWN FRACTION, A SCRUBBING VESSEL, MEANS FOR PASSING SAID STRIPPED
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |