US2906692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic cracking
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1955-07-22
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Granted: 1959-09-29
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Expires: 1975-07-22
Abstract
No abstract record available.
Inventors
- 👤 Edward G Baker
- 👤 Kirshenbaum Isidor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:15
CPC Classifications
C; C10; C10G; C10G47/00; B; B01; B01J; B01J27/00; B01J27/20; B01J27/22; B01J8/00; B01J8/02; B01J8/04; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00327; B01J2208/00336; B01J2208/00353; B01J2208/00371; B01J2208/0061
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A METHOD OF CRACKING GAS OIL PRODUCE GASOLINE WHICH COMPRISES CONTACTING, IN A FIRST STAGE, HOT GAS OIL VAPORS WITH A RELATIVELY LARGE AMOUNT OF SILICA-ALUMINA CRACKING CATALYST AT A CRACKING TEMPERATURE ABOVE ABOUT 850* F, AND THEN FURTHER CRACKING THE TOTAL VAPOROUS REACTION PRODUCTS FROM SAID FIRST STAGE, WITHOUT CONDENSATION, IN A SECOND STAGE BY CONTACTING THEM WITH ACTIVATED CARBON CATALYST AT A CRACKING TEMPERATURE ABOVE ABOUT 850* F, THE ACTIVATED CARBON CATALYST BEING ABOUT ONEFOURTH THE VOLUME OF SAID SILICA-ALUMINA CATALYST.
Claim 2
Independent Claim
83 words
A METHOD OF CRACKING GAS OIL PRODUCE GASOLINE WHICH COMPRISES CONTACTING, IN A FIRST STAGE, HOT GAS OIL VAPORS WITH A RELATIVELY LARGE AMOUNT OF SILICA-ALUMINA CRACKING CATALYST AT A CRACKING TEMPERATURE ABOVE ABOUT 850* F, AND THEN FURTHER CRACKING THE TOTAL VAPOROUS REACTION PRODUCTS FROM SAID FIRST STAGE, WITHOUT CONDENSATION, IN A SECOND STAGE BY CONTACTING THEM WITH ACTIVATED CARBON CATALYST AT A CRACKING TEMPERATURE ABOVE ABOUT 850* F, THE ACTIVATED CARBON CATALYST BEING ABOUT ONEFOURTH THE VOLUME OF SAID SILICA-ALUMINA CATALYST.
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) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |