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Patent US3347778A successfully refreshed from Google Patents.
US3347778A
Expired / Lapsed
US
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Method and system for cracking hydrocarbons
Assignee: Mobil Oil AS
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Filing: 1965-03-12
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Granted: 1967-10-17
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Expires: 1985-03-12
Abstract
No abstract record available.
Inventors
- 👤 Dill Thomas
- 👤 John G Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:30
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; B; B01; B01J; B01J8/00; B01J8/18; B01J8/1845; B01J8/1863; B01J8/24; B01J8/26; B01J8/28; B01J8/38; B01J8/384; B01J8/388
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A METHOD FOR CONVERTING HYDROCARBONS BOILING ABOVE GASOLINE BOILING RANGE HYDROCARBONS WITH AN ALUMINOSILICATE CRACKING CATALYST WHICH COMPRISES PASSING A HYDROCARBON FEED WITH AN ALUMINOSILICATE CRACKING CATALYST THROUGH A FIRST CONVERSION ZONE MAINTAINED UNDER CONDITIONS TO EFFECT NOT MORE THAN PARTIAL CONVERSION OF SAID HYDROCARBON FEED, SEPARATING CATALYST FROM HYDROCARBON PRODUCT OF SAID FIRST CONVERSION ZONE, STRIPPING AND REGENERATING SAID SEPARATED CATALYST UNDER CONDITIONS TO EFFECT NOT MORE THAN A PARTIAL REMOVAL OF CARBONACEOUS DEPOSITS ON SAID SEPARATED CATALYST, RETURNING SUFFICIENT CATALYST THUS REGENERATED TO SAID INITIAL CONVERSION ZONE TO FURNISH A SUBSTANTIAL PORTION OF THE HEAT REQUIRED THEREIN TO VAPORIZE SAID HYDROCARBON FEED AND EFFECT PARTIAL CONVERSION THEREOF, PASSING ANOTHER PORTION OF SAID PARTIALLY REGENERATED CATALYST THROUGH A PLURALITY OF SEQUENTIALLY CONNECTED DILUTE CATALYST PHASE REGENERATION ZONES MAINTAINED UNDER REGENERATION CONDITIONS TO EFFECT SUBSTANTIALLY COMPLETE
Claim 2
Independent Claim
136 words
A METHOD FOR CONVERTING HYDROCARBONS BOILING ABOVE GASOLINE BOILING RANGE HYDROCARBONS WITH AN ALUMINOSILICATE CRACKING CATALYST WHICH COMPRISES PASSING A HYDROCARBON FEED WITH AN ALUMINOSILICATE CRACKING CATALYST THROUGH A FIRST CONVERSION ZONE MAINTAINED UNDER CONDITIONS TO EFFECT NOT MORE THAN PARTIAL CONVERSION OF SAID HYDROCARBON FEED, SEPARATING CATALYST FROM HYDROCARBON PRODUCT OF SAID FIRST CONVERSION ZONE, STRIPPING AND REGENERATING SAID SEPARATED CATALYST UNDER CONDITIONS TO EFFECT NOT MORE THAN A PARTIAL REMOVAL OF CARBONACEOUS DEPOSITS ON SAID SEPARATED CATALYST, RETURNING SUFFICIENT CATALYST THUS REGENERATED TO SAID INITIAL CONVERSION ZONE TO FURNISH A SUBSTANTIAL PORTION OF THE HEAT REQUIRED THEREIN TO VAPORIZE SAID HYDROCARBON FEED AND EFFECT PARTIAL CONVERSION THEREOF, PASSING ANOTHER PORTION OF SAID PARTIALLY REGENERATED CATALYST THROUGH A PLURALITY OF SEQUENTIALLY CONNECTED DILUTE CATALYST PHASE REGENERATION ZONES MAINTAINED UNDER REGENERATION CONDITIONS TO EFFECT SUBSTANTIALLY COMPLETE
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |