US5221301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-stage cyclone separator system with intermediate manifold
Assignee: Emtrol LLC
•
Filing: 1992-10-28
•
Granted: 1993-06-22
•
Expires: 2012-10-28
Abstract
Abstract A multi-stage cyclone separator apparatus is provided for separating particulates from gas in a particulate laden gas. The apparatus is particularly useful for separating particulates such as catalyst particles from hot refinery gas in fluid catalytic cracking reactors and regenerators. The apparatus makes economical use of space and provides for accommodation of stresses due to differential temperature expansion by providing a manifold or plenum chamber receiving partially cleaned outlet gases from a first stage of cyclone separators and providing an inlet therefore to a second stage of separators. The number of separators in each stage are independent of those in the other stage. By arrangement around the periphery of the intermediate manifold chamber and suspension from a top of the housing the separators in the different stages may be efficiently interfitted without interference from separator dip legs as well as providing support for the structure to accommodate thermal stresses.
Inventors
- 👤 Nicholas L. Giuricich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:43
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/005; B01J8/0055; B01D; B01D45/00; B01D45/12; B04; B04C; B04C5/00; B04C5/24; C; C10; C10G; C10G11/00; C10G11/14; C10G11/18
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
128 words
Apparatus for receiving hot gas and particulates and multi-stage cyclone separators for separating particulates and hot gas, said apparatus comprising a housing having an inlet for said hot gas and particulates, a first chamber receiving said hot gas and particulates, a first stage of cyclone separator means having means communicating with said first chamber, a second chamber having means receiving separated hot gas and entrained particulates from said first stage of cyclone separator means, and a second stage of cyclone separator means having means communicating with said second chamber, the first and second stages of cyclone separator means being provided in each stage with cyclone separators which are independent from the cyclone separators in the other stage and which may vary in number in each of the stages.
Claim 2
Dependent Claim
128 words
Apparatus for receiving hot gas and particulates and multi-stage cyclone separators for separating particulates and hot gas, said apparatus comprising a housing having an inlet for said hot gas and particulates, a first chamber receiving said hot gas and particulates, a first stage of cyclone separator means having means communicating with said first chamber, a second chamber having means receiving separated hot gas and entrained particulates from said first stage of cyclone separator means, and a second stage of cyclone separator means having means communicating with said second chamber, the first and second stages of cyclone separator means being provided in each stage with cyclone separators which are independent from the cyclone separators in the other stage and which may vary in number in each of the stages.
Claim 3
Dependent Claim
25 words
The apparatus of claim 1 in which a third chamber is provided having means receiving separated gas from said second stage of cyclone separator means.
Claim 4
Dependent Claim
28 words
The apparatus of claim 1 in which the first and second chambers are freely supported from a top portion of the housing to accommodate vertical and horizontal expansion.
Claim 5
Dependent Claim
36 words
The apparatus of claim 1 in which the first and second chambers and first and second stages of cyclone separator means are freely supported from top portion of the housing to accommodate vertical and horizontal expansion.
Claim 6
Dependent Claim
23 words
The apparatus of claim 3 in which said first and second chambers are disposed axially within said housing and concentrically within said housing.
Claim 7
Dependent Claim
50 words
The apparatus of claim 4 in which said first and second chambers are disposed axially within said housing and concentrically within said housing and separated from an interior wall of the housing by an interior chamber and said first and second cyclone separator means are disposed in said interior chamber.
Claim 8
Dependent Claim
53 words
The apparatus of claim 1 in which said first stage of cyclone separator means comprises a plurality of cyclone separators arranged around an exterior periphery of said second chamber and said second stage of cyclone separator means comprises a plurality of cyclone separators similarly disposed around the exterior periphery of said second chamber.
Claim 9
Dependent Claim
38 words
The apparatus of claim 7 in which the cyclone separators in both the first and second stages of said cyclone separator means have a vertical axis and downwardly depending dip legs receiving separated particulates from said cyclone separators.
Claim 10
Dependent Claim
78 words
The apparatus of claim 2 in which said first stage of cyclone separator means comprises a plurality of cyclone separators arranged around an exterior periphery of said second chamber and said second stage of cyclone separator means comprise a plurality of cyclone separators disposed around the exterior periphery of said second chamber and said second and third chambers have a common wall defining a top wall of said second chamber and a bottom wall of said third chamber.
Claim 11
Dependent Claim
27 words
The apparatus of claim 7 in which said second chamber is generally cylindrical and has a vertical axis substantially coaxial with a vertical axis of said housing.
Claim 12
Dependent Claim
28 words
The apparatus of claim 7 in which the first and second chambers are freely supported from a top portion of the housing to accommodate vertical and horizontal expansion.
Claim 13
Dependent Claim
36 words
The apparatus of claim 7 in which the first and second chambers and first and second stages of cyclone separator means are freely supported from top portion of the housing to accommodate vertical and horizontal expansion.
Claim 14
Dependent Claim
33 words
The apparatus of claim 1 in which said second chamber has a common top wall with said housing defining a top wall of said chamber and an interior top wall of said housing.
Claim 15
Dependent Claim
29 words
The apparatus of claim 13 in which an outlet is provided for cleaned gas from said second chamber in a central portion of said top wall of the housing.
Claim 16
Dependent Claim
58 words
The apparatus of claim 7 in which the cyclone separators in the first stage of cyclone separators have outlets for partially cleaned gas communicating with inlets in a vertical wall of said second chamber and the cyclone separators in the second stage of cyclone separators have inlets communicating with outlets in said vertical wall of said second chamber.
References Cited (Backward Citations)
US3333402A
Cited
US2728642A
Cited
US3724176A
Cited
US3982902A
Cited
US4364905A
Cited
US4460391A
Cited
US4547341A
Cited
US4728348A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-06-21 | 1996-12-21 | 1997-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-21 | 2000-12-21 | 2001-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-21 | 2004-12-21 | 2005-06-22 | $7700.00 | Window Closed / Lapsed |