Patent US5584985A successfully refreshed from Google Patents.
Patent US4701307A successfully refreshed from Google Patents.
US4701307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vented riser
Assignee: Ashland LLC
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Filing: 1986-05-06
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Granted: 1987-10-20
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Expires: 2006-05-06
Abstract
Abstract An improved ballistic separation device results from surrounding the downstream end of a progressive flow reactor or riser reactor with a concentric conduit that is in fluid communication with a cyclone separator and optionally in fluid communication with dipleg take-offs. The device may also include a bevelled lip or projection at the axial opening of the progressive flow reactor.
Inventors
- 👤 Paul W. Walters
- 👤 Roger M. Benslay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:17
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; B; B01; B01J; B01J8/00; B01J8/005; B01J8/0055; B04; B04C; B04C9/00; Y; Y10; Y10S; Y10S55/00; Y10S55/14
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
209 words
An apparatus including means for separating particulates from a mixture of particulates and vapors comprising: (A) a disengaging chamber serving as a reservior for the collection of solid particulates; (B) longitudinal transport means for transporting the mixture, which has a downstream end having an axial opening which is totally within said disengaging chamber; (C) means defining a conduit chamber surrounding at least a portion of said downstream end which does not directly impinge particulates that travel in a path determined by said axial opening of said transport means, wherein said chamber: a. comprises a wall-surface which does not restrict said axial opening of said transport means and wherein said chamber is defined between the extension surface of said transport means and interior surface of said wall-surface. b. has means defining a fluid opening at substantially opposite ends so as to define an entrance and an exit; and c. includes means defining a vapor-take-off-exit at a location intermediate to said entrance and said exit, which is adapted for fluid communication with a second means for separating said particulates from vapors, wherein the ratio of length, from the exit of said conduit chamber to the vapor-take-off-exit of said conduit chamber, to inside diameter of the transport means is at least 2.
Claim 2
Independent Claim
209 words
An apparatus including means for separating particulates from a mixture of particulates and vapors comprising: (A) a disengaging chamber serving as a reservior for the collection of solid particulates; (B) longitudinal transport means for transporting the mixture, which has a downstream end having an axial opening which is totally within said disengaging chamber; (C) means defining a conduit chamber surrounding at least a portion of said downstream end which does not directly impinge particulates that travel in a path determined by said axial opening of said transport means, wherein said chamber: a. comprises a wall-surface which does not restrict said axial opening of said transport means and wherein said chamber is defined between the extension surface of said transport means and interior surface of said wall-surface. b. has means defining a fluid opening at substantially opposite ends so as to define an entrance and an exit; and c. includes means defining a vapor-take-off-exit at a location intermediate to said entrance and said exit, which is adapted for fluid communication with a second means for separating said particulates from vapors, wherein the ratio of length, from the exit of said conduit chamber to the vapor-take-off-exit of said conduit chamber, to inside diameter of the transport means is at least 2.
Claim 3
Dependent Claim
28 words
The separation means of claim 1, wherein said wall-surface defines a cross-sectional area at right angles to said axial opening which is a square or rectangle in shape.
Claim 4
Dependent Claim
37 words
The separation means of claim 1, wherein the ratio of the cross sectional area of the conduit chamber to the cross sectional area of the transport means is in the range of about 0.5 to about 1.25.
Claim 5
Dependent Claim
39 words
The separation means of claim 1, wherein the ratio of length, from the exit of said conduit chamber to the vapor take-off exit of said conduit chamber to the inside diameter of the transport means is at least 15.
Claim 6
Dependent Claim
39 words
The separation means of claim 1, wherein the ratio of length, from the exit of said conduit chamber to the vapor take-off exit of said conduit chamber, to the inside diameter of the transport means is at least 15.
Claim 7
Dependent Claim
18 words
The separation means of claim 1, wherein said chamber completely surrounds said downstream end of said transport means.
Claim 8
Dependent Claim
16 words
The separation means of claim 6, wherein said exit is in fluid communication with a dipleg.
Claim 9
Dependent Claim
37 words
The separation means of claim 6, wherein the ratio of the cross sectional area of the conduit chamber to the cross sectional area of the transport means is in the range of about 0.5 to about 1.25.
Claim 10
Dependent Claim
29 words
The separation means of claim 1, wherein an edge of said wall-surface nearest said entrance of said chamber does not project beyond said axial opening of said transport means.
Claim 11
Dependent Claim
37 words
The separation means of claim 9, wherein the ratio of the cross sectional area of the conduit chamber to the cross sectional area of the transport means is in the range of about 0.5 to about 1.25.
Claim 12
Dependent Claim
38 words
The separation means of claim 9, wherein the ratio of length, from the exit of said conduit chamber to the vapor take-off exit of said conduit chamber, to inside diameter of the transport means is at least 15.
Claim 13
Dependent Claim
28 words
The separation means of claim 1, wherein an edge of said wall-surface nearest said entrance of said chamber is above said unrestricted axial opening of said transport means.
Claim 14
Dependent Claim
37 words
The separation means of claim 12, wherein the ratio of the cross sectional area of the conduit chamber to the cross sectional area of the transport means is in the range of about 0.5 to about 1.25.
Claim 15
Dependent Claim
16 words
The separation means of claim 1, wherein at least a portion of said wall-surface is planar.
Claim 16
Dependent Claim
18 words
The separation means of claim 14, wherein said wall-surface completely surrounds said downstream end of said transport means.
Claim 17
Dependent Claim
28 words
The separation means of claim 14, wherein said wall-surface defines a cross-sectional area at right angles to said axial opening which is a square or rectangle in shape.
Claim 18
Dependent Claim
16 words
The separation means of claim 14, wherein said exit is in fluid communication with a dipleg.
Claim 19
Dependent Claim
19 words
The separation means of claim 1, wherein said exit of said chamber is in fluid communication with a dipleg.
Claim 20
Dependent Claim
37 words
The separation means of claim 18, wherein the ratio of the cross sectional area of said conduit chamber to the cross sectional area of said transport means is in the range of about 0.5 to about 1.25.
Claim 21
Dependent Claim
21 words
The separation means of claim 1, further including a projection means extending inwardly into said axial opening of said transport means.
Claim 22
Dependent Claim
39 words
The separation means of claim 20, wherein the ratio of length, from the exit of said conduit chamber to the vapor take-off exit of said conduit chamber to the inside diameter of the transport means is at least 15.
Claim 23
Dependent Claim
51 words
The separation means of claim 20, wherein the length of said projection is at least equal to 1/2 inside diameters of said transport means and wherein said projection is at an angle with respect to the longitudinal axis of said transport means in the range of about 5 to 30 degrees.
Claim 24
Dependent Claim
20 words
The separation means of claim 22, wherein said angle is in the range of about 10 to about 20 degrees.
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) | 1990-10-19 | 1991-04-20 | 1991-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-19 | 1995-04-20 | 1995-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-19 | 1999-04-20 | 1999-10-20 | $7700.00 | Window Closed / Lapsed |