Patent US3240697A successfully refreshed from Google Patents.
US3240697A
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Catalytic conversion with activated catalyst
Assignee: ExxonMobil Oil Corp
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Filing: 1964-12-17
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Granted: 1966-03-15
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Expires: 1984-12-17
Abstract
No abstract record available.
Inventors
- 👤 Joseph N Miale
- 👤 Paul B Weisz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:33
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/082; B01J29/084; B01J29/70; B01J29/7003; B01J2229/00; B01J2229/30; B01J2229/42; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A METHOD FOR CRACKING A HYDROCARBON CHARGE WHICH COMPRISES CONTACTING THE SAME UNDER CATALYTIC CRACKING CONDITIONS INCLUDING A TEMPERATURE OF AT LEAST ABOUT 900* F. WITH A CATALYST OF CRYSTALLINE METAL ALUMINOSILICATE WHICH HAS UNDERGONE CONTACT PRIOR TO COMPLETION OF SAID CRACKING WITH SULFUR DIOXIDE, AT A TEMPERATURE IN EXCESS OF ABOUT 800*F., PRESENT IN AN AMOUNT SUFFICIENT TO EFFECTIVELY ENHANCE THE ACTIVITY OF SAID CATALYST WHICH CATALYST HAS RIGID THREE-DIMENSIONAL NETWORKS MADE UP OF UNIT CELLS CHARACTERIZED BY THE SUBSTANTIAL ABSENCE OF CHANGE IN UNIT CELL DIMENSIONS UPON DEHYDRATION AND REHYDRATION AND A UNIFORM PORE STRUCTURE MADE UP OF PORES OF BETWEEN ABOUT 3 AND ABOUT 15 ANGSTROMS IN DIAMETER.
Claim 2
Independent Claim
111 words
A METHOD FOR CRACKING A HYDROCARBON CHARGE WHICH COMPRISES CONTACTING THE SAME UNDER CATALYTIC CRACKING CONDITIONS INCLUDING A TEMPERATURE OF AT LEAST ABOUT 900* F. WITH A CATALYST OF CRYSTALLINE METAL ALUMINOSILICATE WHICH HAS UNDERGONE CONTACT PRIOR TO COMPLETION OF SAID CRACKING WITH SULFUR DIOXIDE, AT A TEMPERATURE IN EXCESS OF ABOUT 800*F., PRESENT IN AN AMOUNT SUFFICIENT TO EFFECTIVELY ENHANCE THE ACTIVITY OF SAID CATALYST WHICH CATALYST HAS RIGID THREE-DIMENSIONAL NETWORKS MADE UP OF UNIT CELLS CHARACTERIZED BY THE SUBSTANTIAL ABSENCE OF CHANGE IN UNIT CELL DIMENSIONS UPON DEHYDRATION AND REHYDRATION AND A UNIFORM PORE STRUCTURE MADE UP OF PORES OF BETWEEN ABOUT 3 AND ABOUT 15 ANGSTROMS IN DIAMETER.
References Cited (Backward Citations)
US2343927A
Cited
US3033778A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |