Patent US3722189A successfully refreshed from Google Patents.
US3722189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for removing hydrocarbons from a gas stream
Assignee: Chemical Construction Corp
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Filing: 1971-05-24
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Granted: 1973-03-27
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Expires: 1991-05-24
Abstract
Abstract A fluid-solid contactor is disclosed which provides maximum contact area with minimum displacement, by passing the fluid into a preferably cylindrical container containing a coaxial internal preferably cylindrical solids bed, and diverting the fluid by means of an annular inclined baffle to attain fluid flow through the bed. The invention is applicable to the removal of hydrocarbons from an engine exhaust gas by absorption into a solid absorbent.
Inventors
- 👤 J Tourtellotte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:28
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/0807; F01N3/0828; F01N3/0835; B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/62; F01N13/00; F01N13/009; F01N13/0097; F01N3/0814; F01N3/10; F01N3/24; F01N3/28; F01N3/2839; F01N3/2846; F01N2250/00; F01N2250/12; F01N2260/00; F01N2260/04; F01N2330/00; F01N2330/08; F01N2370/00; F01N2370/40; F01N2470/00; F01N2470/18; F01N2490/00; F01N2490/16; F01N3/30; Y; Y10; Y10S; Y10S55/00; Y10S55/30; Y10S95/00; Y10S95/90; Y10S95/901
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
17 words
The apparatus of claim 1, in which said container, bed and first baffle are cylindrical and coaxial.
Claim 2
Dependent Claim
36 words
The apparatus of claim 2, in which said container and cylindrical first baffle are vertically oriented about a vertical axis, and said inclined annular second baffle is inclined at an acute angle from a horizontal plane.
Claim 3
Dependent Claim
54 words
The apparatus of claim 3, in which said inlet means is a first duct which extends horizontally into said container above the lower end of said inclined annular second baffle, and said outlet means is a second duct which extends horizontally from said container below the upper end of said inclined annular second baffle.
Claim 4
Dependent Claim
14 words
The apparatus of claim 1, in which said fluid stream is a gaseous stream.
Claim 5
Dependent Claim
29 words
The apparatus of claim 4, in which said gaseous stream includes exhaust gas from an engine, and said solid particles are particles of an active absorbent for hydrocarbon vapors.
Claim 6
Dependent Claim
35 words
The apparatus of claim 5, in which said engine is an internal combustion engine mounted in a vehicle selected from the group consisting of an automobile, a truck, a bus, a tractor and a motorcycle.
Claim 7
Dependent Claim
36 words
The apparatus of claim 5, in which said solid absorbent particles contain an active hydrocarbon absorbent selected from the group consisting of activated carbon, zeolite, activated alumina, fuller''s earth, kaolin, and organic resin, and mixtures thereof.
Claim 8
Independent Claim
336 words
An apparatus for contacting a fluid stream with dIscrete solid particles which comprises an inner cylindrical baffle, an outer cylindrical baffle, said outer baffle being concentrically disposed about said inner baffle, a first disc-shaped baffle, said first baffle being foraminous and extending across one end of said inner baffle, a second disc-shaped baffle, said second baffle being foraminous and extending across the other end of said inner baffle, a plurality of discrete solid particles, said solid particles being disposed within said inner baffle and between said first baffle and said second baffle, a third disc-shaped baffle, said third baffle being coaxial with said first and second baffles and spaced adjacent to said first baffle and external to said inner baffle, first fluid closure means extending between the outer circular periphery of said third baffle and one end of said outer baffle, a fourth disc-shaped baffle, said fourth baffle being coaxial with said first and second baffles and spaced adjacent to said second baffle and external to said inner baffle, second fluid closure means extending between the outer circular periphery of said fourth baffle and the other end of said outer baffle, an annular fluid diversion baffle, said annular baffle extending between said inner baffle and said outer baffle, the plane of said annular baffle being nonperpendicular to the axis of said inner baffle, said annular baffle thereby extending at an inclined angle transversely between the ends of said outer baffle, inlet means to pass a fluid stream between said inner and outer baffles and in contact with one side of said annular baffle, whereby said fluid stream flows radially inwards between said first baffle and said third baffle, through said inner baffle and in contact with said solid particles, radially outwards between said second baffle and said fourth baffle, and in contact with the other side of said annular baffle, and outlet means to remove the fluid stream from between said inner baffle and said outer baffle adjacent to the other side of said annular baffle.
Claim 9
Dependent Claim
42 words
The apparatus of claim 9, in which said inner and outer baffles are vertically oriented about a vertical axis, said first, second, third and fourth baffles are horizontal, and said annular baffle is inclined at an acute angle from a horizontal plane.
Claim 10
Dependent Claim
72 words
The apparatus of claim 10, in which said inlet means to pass said fluid stream between said inner and outer baffles is a means to pass said fluid stream above said annular baffle, whereby said fluid stream flows downwards through said inner baffle and in contact with said solid particles, and said outlet means to remove said fluid stream is a means to remove said fluid stream from below said annular baffle.
Claim 11
Dependent Claim
36 words
The apparatus of claim 11, in which said inlet means is a first duct which extends horizontally to said outer baffle, and said outlet means is a second duct which extends horizontally from said outer baffle.
Claim 12
Dependent Claim
14 words
The apparatus of claim 9, in which said fluid stream is a gaseous stream.
Claim 13
Dependent Claim
29 words
The apparatus of claim 13, in which said gaseous stream includes exhaust gas from an engine, and said solid particles are particles of an active absorbent for hydrocarbon vapors.
Claim 14
Dependent Claim
35 words
The apparatus of claim 14, in which said engine is an internal combustion engine mounted in a vehicle selected from the group consisting of an automobile, a truck, a bus, a tractor and a motorcycle.
Claim 15
Dependent Claim
36 words
The apparatus of claim 14, in which said solid absorbent particles contain an active hydrocarbon absorbent selected from the group consisting of activated carbon, zeolite, activated alumina, fuller''s earth, kaolin and organic resin, and mixtures thereof.
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) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |