US3685256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adsorption process for recovering desired components from a gas stream
Assignee: CLEM A BARRERE JR
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Filing: 1971-03-08
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Granted: 1972-08-22
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Expires: 1991-03-08
Abstract
Abstract The present invention relates to an improved adsorption process for recovering desired components from a gas stream, and more particularly, to an adsorption process for recovering desired components from a gas stream wherein one or more of the desired components is difficult to regenerate as compared to the other of the components. By the present invention, a controlled quantity of the difficult-to-regenerate component or components are continuously combined with the heated regeneration gas stream used to regenerate a solid adsorbent containing both difficult and easy to regenerate components so that the rate at which the difficult-to-regenerate component or components are desorbed from the bed is increased.
Inventors
- 👤 Clem A Barrere Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:11
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D2253/00; B01D2253/10; B01D2253/102; B01D2256/00; B01D2256/24; B01D2257/00; B01D2257/70; B01D2257/702; B01D2258/00; B01D2258/06; B01D2259/00; B01D2259/40; B01D2259/403
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
16 words
The process of claim 1 wherein the regeneration gas stream is confined within a closed circuit.
Claim 2
Dependent Claim
36 words
The process of claim 2 wherein the inlet gas stream is natural gas, the desired components are propane and heavier hydrocarbon compounds contained therein, and the difficult-to-regenerate components are pentanes and heavier hydrocarbon compounds contained therein.
Claim 3
Dependent Claim
11 words
The process of claim 3 wherein the adsorbent is activated carbon.
Claim 4
Dependent Claim
259 words
A cyclic vapor adsorption process for recovering desired components from an inlet gas stream, one or more of said components being difficult to regenerate as compared to the other of said components, which comprises the steps of: contacting one or more of a plurality of stationary beds of solid adsorbent with said inlet gas stream so that said desired components are adsorbed thereon; simultaneously regenerating one or more other of said beds by contact with a heated regeneration gas stream confined within a closed circuit so that desired components are desorbed from said bed into said regeneration gas stream; removing said desorbed components from said regeneration gas stream; continuously combining a predetermined quantity of said difficult-to-regenerate components with said regeneration gas stream remaining after said desorbed components have been removed therefrom so that said heated regeneration gas stream is of a controlled difficult-to-regenerate component content thereby increasing the rate at which said difficult-to-regenerate components are desorbed from said bed or beds; simultaneously contacting yet one or more other of said beds with a cooling gas stream so that said beds are cooled preparatory to being contacted with said inlet gas stream; and cycling said inlet gas, regeneration gas and cooling gas streams so that the bed or beds just contacted with said inlet gas stream are contacted with said regeneration gas stream, the bed or beds just contacted with said regeneration gas stream are contacted with the cooling gas stream and the bed or beds just contacted with the cooling gas stream are contacted with the inlet gas stream.
Claim 5
Dependent Claim
36 words
The process of claim 5 wherein the inlet gas stream is natural gas, the desired components are propane and heavier hydrocarbon compounds contained therein, and the difficult-to-regenerate components are pentanes and heavier hydrocarbon compounds contained therein.
Claim 6
Dependent Claim
11 words
The process of claim 6 wherein the adsorbent is activated carbon.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |