Patent US5151395A successfully refreshed from Google Patents.
US5151395A
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Bulk gas sorption and apparatus, gas containment/treatment system comprising same, and sorbent composition therefor
Assignee: Novapure Corp
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Filing: 1990-03-16
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Granted: 1992-09-29
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Expires: 2010-03-16
Abstract
Abstract A sorbent composition comprising a first sorbent bed of hygroscopic aluminosilicate sorbent and a second sorbent bed comprising an aluminosilicate sorbent impregnated with an aqueous base solution, whereby the hygroscopic aluminosilicate sorbent provides an initial contact zone to protect upstream gas and processing equipment from reaction products resulting from back-diffusion of water which will occur in the absence of the first sorbent.
Inventors
- 👤 Glenn M. Tom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:35
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/0407; B01D53/0423; B01D53/0454; B01J; B01J20/00; B01J20/30; B01J20/32; B01J20/3202; B01J20/3204; B01J20/3206; B01J20/3208; B01J20/321; B01J20/3214; B01J20/3217; B01J20/3219; B01J20/3231; B01J20/3234; B01J20/3236; B01J20/3242; B01J20/3244; B01J20/3265; B01J8/00; B01J8/02; B01J8/0278; C; C01; C01B; C01B17/00; C01B17/16; C01B17/165; C01B19/00; C01B19/04; C01B21/00; C01B21/04; C01B21/0405; C01B21/0411; C01B21/0427; C01B23/00; C01B25/00; C01B25/06; C01B33/00; C01B33/04; C01B33/043; C01B6/00; C01B6/06; C01B6/065; C01B6/24; C23; C23C; C23C16/00; C23C16/44; C23C16/448; C23C16/4488; C30; C30B; C30B25/00; C30B25/02; C30B25/14; F; F17; F17C; F17C13/00; F17C13/08; F17C13/084; F17C13/12; F17C13/123; B01D2251/00; B01D2251/10; B01D2251/30; B01D2251/302; B01D2251/304; B01D2251/306; B01D2251/40; B01D2251/402; B01D2253/00; B01D2253/10; B01D2253/102; B01D2253/104; B01D2253/106; B01D2253/112; B01D2253/1122; B01D2253/20; B01D2253/202; B01D2253/25; B01D2253/30; B01D2253/302; B01D2253/308; B01D2253/31; B01D2255/00; B01D2255/20; B01D2255/207; B01D2255/20776; B01D2255/80; B01D2255/808; B01D2257/00; B01D2257/20; B01D2257/204; B01D2257/40; B01D2257/406; B01D2257/55; B01D2257/60; B01D2257/70; B01D2257/704; B01D2257/706; B01D2257/93; B01D2258/00; B01D2258/02; B01D2258/0216; B01D2259/00; B01D2259/40; B01D2259/40003; B01D2259/40083; B01D2259/40086; B01D2259/414; B01D2259/4141; B01D2259/4145; B01D2259/4146; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/0119; F17C2201/03; F17C2201/032; F17C2205/00; F17C2205/01; F17C2205/0103; F17C2205/0107; F17C2205/0111; F17C2205/0123; F17C2205/013; F17C2205/0134; F17C2205/0142; F17C2205/0146; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0335; F17C2205/0338; F17C2205/0341; F17C2221/00; F17C2221/01; F17C2221/014; F17C2221/03; F17C2221/037; F17C2227/00; F17C2227/04; F17C2227/044; F17C2270/00; F17C2270/05; F17C2270/0518
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
64 words
A sorbent composition comprising an arrangement of first and second sorbent beds, wherein the first sorbent bed comprises a hygroscopic aluminosilicate sorbent, and the second sorbent bed comprises an aluminosilicate sorbent impregnated with an aqueous base solution, wherein the first and second sorbent beds are arranged for initial gas contacting with the first sorbent bed and succeeding gas contacting with the second sorbent bed.
Claim 2
Dependent Claim
64 words
A sorbent composition comprising an arrangement of first and second sorbent beds, wherein the first sorbent bed comprises a hygroscopic aluminosilicate sorbent, and the second sorbent bed comprises an aluminosilicate sorbent impregnated with an aqueous base solution, wherein the first and second sorbent beds are arranged for initial gas contacting with the first sorbent bed and succeeding gas contacting with the second sorbent bed.
Claim 3
Dependent Claim
13 words
A composition according to claim 1, wherein the aluminosilicate sorbent comprises molecular sieve.
Claim 4
Dependent Claim
20 words
A sorbent composition according to claim 1, wherein the aqueous base solution comprises an alkali or alkaline earth metal hydroxide.
Claim 5
Dependent Claim
26 words
A sorbent composition according to claim 3, wherein the alkali metal hydroxide is selected from the group consisting of lithium hydroxide, sodium hydroxide, and calcium hydroxide.
Claim 6
Dependent Claim
32 words
A sorbent composition according to claim 1, wherein the first and second sorbent beds are vertically aligned with respect to one another, with the first sorbent bed overlying the second sorbent bed.
Claim 7
Dependent Claim
49 words
A sorbent composition according to claim 1, wherein the aluminosilicate sorbent impregnated with an aqueous base solution comprises a composition of from about 1% to about 5% by weight of base component, and from about 10% to about 25% by weight of water, based on the weight of aluminosilicate.
Claim 8
Dependent Claim
27 words
A sorbent composition according to claim 1, wherein the first sorbent bed does not exceed about 15% by volume of the volume of the second sorbent bed.
Claim 9
Dependent Claim
31 words
A sorbent composition according to claim 1, wherein the first sorbent bed has a volume which is from about 5% to about 15% of the volume of the second sorbent bed.
Claim 10
Dependent Claim
31 words
A sorbent composition according to claim 1, wherein the first sorbent bed has a volume which is from about 3% to about 20% of the volume of the second sorbent bed.
Claim 11
Dependent Claim
23 words
A sorbent composition according to claim 1, wherein the second sorbent bed comprises molecular sieve impregnated with an aqueous solution of lithium hydroxide.
Claim 12
Dependent Claim
28 words
A sorbent composition according to claim 10, wherein the ratio of lithium hydroxide to water to molecular sieve is on the order of 2:15:100 parts by weight, respectively.
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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) | 1995-09-29 | 1996-03-30 | 1996-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-29 | 2000-03-30 | 2000-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-29 | 2004-03-30 | 2004-09-29 | $7700.00 | Window Closed / Lapsed |