US3607129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for catalytic cracking
Assignee: Universal Oil Products Co
•
Filing: 1970-04-13
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Granted: 1971-09-21
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Expires: 1990-04-13
Abstract
Abstract Apparatus comprising a riser cracking reaction zone and a reaction zone vessel, said vessel having disposed therein a first and second particle separation means, said second particle separation means is connected to said riser reaction zone and said first particle separation means is connected to an outlet stream contained in said reaction zone vessel.
Inventors
- 👤 Don B Carson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:32
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/20; B01J8/005; B01J8/0055; B01J8/24; C; C10; C10G; C10G11/00; C10G11/14; C10G11/18
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
25 words
The apparatus of claim 1 further characterized in that said first hydrocarbon charge stream inlet is located at a lower portion of said reaction vessel.
Claim 2
Dependent Claim
24 words
The apparatus of claim 1 further characterized in that said catalyst outlet from said vessel is located at a lower portion of said vessel.
Claim 3
Dependent Claim
39 words
The apparatus of claim 1 further characterized in that said second particle separation means is located in a portion of said vessel having a smaller inside cross-sectional area than the cross-sectional area of the vessel at its lower portion.
References Cited (Backward Citations)
US2718491A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |