US3758403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Olites catalytic cracking of hydrocarbons with mixture of zsm-5 and other ze
Assignee: ExxonMobil Oil Corp
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Filing: 1970-10-06
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Granted: 1973-09-11
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Expires: 1990-10-06
Abstract
Abstract HYDROCARBONS ARE CRACKED TO PRODUCTS BOILING IN THE MOTOR FUEL RANGE BY USING A CATALYST MIXTURE COMPRISING A LARGE PORE SIZE ZEOLITE SUCH AS ZEOLITE Y AND A SMALLER PORE SIZE ZEOLITE OF THE ZSM-5 TYPE. IN A PREFERRED EMBODIMENT, A SILICEOUS MATRIX MATERIAL IS ALSO USED. THE USE OF THE ZSM-5 TYPE ZEOLITE RESULTS IN OBTAINING A FUEL HAVING AN INCREASED OCTANE NUMBER AND IN INCREASED YIELDS OF C3 AND C4 OLEFINS. THESE OLEFINS CAN BE UTILIZED IN MAKING ADDITIONAL GASOLINE OR THEY CAN BE USED TO PREPARE CHEMICALS IN ACCORDANCE WITH CONVENTIONAL TECHNOLOGY.
Inventors
- 👤 E Rosinski
- 👤 C Plank
- 👤 A Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:26
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/80; B01J29/08; B01J29/084; B01J29/40
Claims Analysis
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References Cited (Backward Citations)
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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) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |