Patent US3732081A successfully refreshed from Google Patents.
US3732081A
Expired / Lapsed
US
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Apparatus for fluid-solid contacting operations
Assignee: Universal Oil Products Co
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Filing: 1971-05-20
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Granted: 1973-05-08
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Expires: 1991-05-20
Abstract
Abstract An apparatus comprising a riser reaction zone and a reaction zone vessel, said vessel having disposed therein a first and second particle separation means, the second particle separation means is connected to said riser reaction zone which passes into said vessel through its lowermost portion. The first particle separation means is connected to an outlet stream passing out of the reaction zone vessel. The apparatus is applicable for use in catalytic cracking operations, fluidized dehydrogenation operations, or any fluid-solid catalytic operation in which fluidized catalysts are utilized to effectuate a reaction. In a particular instances the apparatus may be used to perform a riser reaction and a dense fluidized bed contacting simultaneously.
Inventors
- 👤 D Carson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:26
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; B; B01; B01J; B01J8/00; B01J8/005; B01J8/0055
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
22 words
The apparatus of claim 1 further characterized in that stream inlet means 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
44 words
The apparatus of claim 1 further characterized in that said second particle separation means is located in a portion of said contacting vessel having a smaller inside cross-sectional area than the lower portion of the contacting vessel where said first separation means is located.
Claim 4
Dependent Claim
15 words
Claim 1 further characterized in that said stream inlet means comprises said riser reaction column.
Claim 5
Dependent Claim
25 words
Claim 1 further characterized in that said stream inlet into said contacting vessel is a conduit suitable for the passage of a hydrocarbon charge stream.
Claim 6
Dependent Claim
24 words
The apparatus of claim 1 further characterized in that said vertical riser reaction column passes into said reaction vessel at a lower portion thereof.
Claim 7
Independent Claim
157 words
An apparatus system for effecting a fluidized catalyst contacting in a riser in a manner precluding excess residence time within a contacting vessel of hydrocarbon effluent from said riser, which apparatus comprises in combination a vertically disposed contacting vessel adapted to retain a fluidized bed of catalyst particles, a stream inlet means to said vessel for receiving a first charge stream, a catalyst outlet from said vessel, a first particle-fluid separation means located within said contacting vessel having an inlet means in communication within said contact vessel, a hydrocarbon outlet means from said first particle separation means passing through said contacting vessel, a vertical riser reaction zone passing into and through said contacting vessel and having a lower inlet means for a hydrocarbon charge stream and catalyst particles, a second fluid-particle separation means located within an upper eNd portion of said riser said second particle separation means having an outlet means which discharges into said contacting vessel.
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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |