Patent US4409006A successfully refreshed from Google Patents.
US4409006A
Expired / Lapsed
US
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Removal and concentration of organic vapors from gas streams
Assignee: CUBEMCO Inc A CORP OF PA 19380
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Filing: 1981-12-07
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Granted: 1983-10-11
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Expires: 2001-12-07
Abstract
Abstract Organic vapors are removed from a gas stream and concentrated to a high degree in a continuous adsorption process. The vapor-laden gas passes through a portion of a cylindrical-shaped adsorber as it rotates in a plane normal to the gas flow. The rotating adsorber then moves through several stages including regeneration and cooling. The vapor-laden gas is spiked with recovered product to increase the loading on the adsorbent and thus provide a higher regenerating gas composition. Multi-stage regeneration assures a high recovery efficiency.
Inventors
- 👤 Manlio M. Mattia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:00
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/06; B01D2253/00; B01D2253/10; B01D2253/102; B01D2253/106; B01D2253/108; B01D2253/116; B01D2257/00; B01D2257/70; B01D2259/00; B01D2259/40; B01D2259/40011; B01D2259/40077; B01D2259/40081; B01D2259/40083; B01D2259/40088; B01D2259/4009; F; F24; F24F; F24F2203/00; F24F2203/10; F24F2203/1032; F24F2203/1068; F24F2203/1092; F24F2203/1096
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
163 words
A process for the removal and concentration of organic vapor from gas streams comprising continuously and simultaneously conducting various steps on different sections both above and below a rotating bed of adsorbent material and sequentially rotating the bed through the steps of: (a) passing organic vapor-laden gas in a direction normal to said bed through a first section for adsorption of organic vapors and to produce a gas stream having a reduced quantity of organic vapor; (b) passing a hot, partially inert regenerating gas in a direction normal to said bed through a second section to substantially regenerate said adsorbent material and to provide a partially inert gas stream rich in organic vapor, a portion of which forms a product stream; and (c) passing a hot inert gas, substantially free of organic vapor, in a direction countercurrent to the flow of said organic vapor-laden gas and normal to said bed through a third section to provide more complete regeneration of said adsorbent material.
Claim 2
Dependent Claim
163 words
A process for the removal and concentration of organic vapor from gas streams comprising continuously and simultaneously conducting various steps on different sections both above and below a rotating bed of adsorbent material and sequentially rotating the bed through the steps of: (a) passing organic vapor-laden gas in a direction normal to said bed through a first section for adsorption of organic vapors and to produce a gas stream having a reduced quantity of organic vapor; (b) passing a hot, partially inert regenerating gas in a direction normal to said bed through a second section to substantially regenerate said adsorbent material and to provide a partially inert gas stream rich in organic vapor, a portion of which forms a product stream; and (c) passing a hot inert gas, substantially free of organic vapor, in a direction countercurrent to the flow of said organic vapor-laden gas and normal to said bed through a third section to provide more complete regeneration of said adsorbent material.
Claim 3
Dependent Claim
37 words
The process of claim 1 which further comprises spiking said organic vapor-laden gas with recovered organic vapor to increase loading on said adsorbent material and to provide a higher concentration of organic vapor in the product stream.
Claim 4
Dependent Claim
32 words
The process of claim 2 which further comprises cooling and introducing a slip stream of gas from said second section into said organic vapor-laden gas which is directed to said first section.
Claim 5
Dependent Claim
31 words
The process of claim 1 which further comprises passing a stream of cool inert gas in a direction normal to said bed through a fourth section to cool said adsorbent material.
Claim 6
Dependent Claim
17 words
The process of claim 4 wherein said inert cool gas is continuously cooled in a closed loop.
Claim 7
Dependent Claim
17 words
The process of claim 1 wherein said hot regenerating gas is continuously reheated in a closed loop.
Claim 8
Dependent Claim
34 words
The process of claim 6 which further comprises reheating said hot regenerating gas in a heat exchanger with a slip stream of gas exiting said second section which has been incinerated to remove organics.
Claim 9
Dependent Claim
33 words
The process of claim 1 wherein said hot inert gas, substantially free of organic vapor, is derived from a slip stream of gas exiting said second section which is incinerated to remove organics.
Claim 10
Dependent Claim
11 words
The process of claim 1 wherein said adsorbent is activated carbon.
Claim 11
Dependent Claim
46 words
The process of claim 1 wherein said hot inert gas, substantially free of organic vapor, is derived from an external source and a portion of the hot, partially inert regenerating gas which passes through said second section is cooled and directed to a secondary recovery system.
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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) | 1986-10-10 | 1987-04-11 | 1987-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-10 | 1991-04-11 | 1991-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-10 | 1995-04-11 | 1995-10-11 | $7700.00 | Window Closed / Lapsed |