US3848811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for injecting a fluid into a fluidized bed of particulate material
Assignee: Sunoco Inc
•
Filing: 1973-12-19
•
Granted: 1974-11-19
•
Expires: 1993-12-19
Abstract
Abstract A nozzle for discharging a fluid such as oil into a fluidized bed of particulate material such as catalyst whereby the fluid is dispersed into a multiplicity of discrete streams for the purpose of improving contact between fluid and solid thereby approaching perfect mixing. The preferred embodiment utilizes the nozzle on the inlet line of oil feed to a fluid catalytic cracking system.
Inventors
- 👤 M Fryback
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:41
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; B; B01; B01J; B01J8/00; B01J8/18; B01J8/1818; B01J8/1827; B01J8/24; B01J8/26; Y; Y10; Y10S; Y10S159/00; Y10S159/03; Y10S159/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
158 words
A nozzle for contacting a fluid with a finely divided solid in fluidized condition comprising a. a cylindrical member havIng a plurality of circumferentially spaced holes in its walls, the axis of each hole forming an acute angle with the axis of the cylindrical member with respect to the direction of movement of the fluid; b. a frusto-conical member attached to the cylindrical member with the small cross-sectional area facing the cross-sectional face of the cylindrical member and defining a first annular space between the walls of the first frusto-conical member and the wall of the cylindrical member, the axis of revolution of said annular space forming an acute angle with the axis of the cylindrical member with respect to the direction of flow and c. a connecting member spanning the first annular space whereby the first frusto-conical member is attached to the cylindrical member and defining a plurality of circumferentially spaced apertures in the first annular space.
Claim 2
Dependent Claim
158 words
A nozzle for contacting a fluid with a finely divided solid in fluidized condition comprising a. a cylindrical member havIng a plurality of circumferentially spaced holes in its walls, the axis of each hole forming an acute angle with the axis of the cylindrical member with respect to the direction of movement of the fluid; b. a frusto-conical member attached to the cylindrical member with the small cross-sectional area facing the cross-sectional face of the cylindrical member and defining a first annular space between the walls of the first frusto-conical member and the wall of the cylindrical member, the axis of revolution of said annular space forming an acute angle with the axis of the cylindrical member with respect to the direction of flow and c. a connecting member spanning the first annular space whereby the first frusto-conical member is attached to the cylindrical member and defining a plurality of circumferentially spaced apertures in the first annular space.
Claim 3
Dependent Claim
30 words
The nozzle of claim 1 wherein the circumferentially spaced apertures in the first annular space are in staggered position in relation to the circumferentially spaced holes in the cylindrical member.
Claim 4
Dependent Claim
117 words
The nozzle of claim 1 which further comprises a. a second frusto-conical member with the small cross-sectional end attached to the large cross-sectional end of the first frusto-conical member of claim 1 and defining a second annular space between the walls of the first frusto-conical member and the walls of the second frusto-conical member, the axis of said second annular space forming an acute angle with the axis of revolution of the cylindrical member with respect to the direction of flow; and b. a second connecting member spanning the second annular space whereby the second frusto-conical member is attached to the first frusto-conical member and defining a plurality of circumferentially spaced apertures in the second annular space.
Claim 5
Dependent Claim
56 words
The nozzle of claim 3 wherein the circumferentially spaced apertures in the first annular space are in staggered position in relation to the circumferentially spaced holes in the cylindrical member and the circumferentially spaced apertures in the second annular space are in staggered position in relation to the circumferentially spaced holes in the first annular space.
Claim 6
Dependent Claim
44 words
The nozzle of claim 4 wherein the wall of the cylindrical member defining the outer wall of the first annular space is tapered to be parallel to the wall of the first frusto-conical member which defines the inner wall of the first annular space.
Claim 7
Dependent Claim
13 words
The nozzle of claim 4 wherein said acute angles are about 25* .
References Cited (Backward Citations)
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Cited
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US3632304A
Cited
US3597166A
Cited
US3649206A
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US3685971A
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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) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |