US4036944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogen sorbent composition and its use
Assignee: Shell USA Inc
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Filing: 1976-05-17
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Granted: 1977-07-19
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Expires: 1996-05-17
Abstract
Abstract A hydrogen sorbent composition comprising a lanthanum pentanickel sorbent and a thermoplastic elastomer binder is disclosed. Also disclosed is the use of the composition in storing hydrogen and in the purification of hydrogen-containing streams.
Inventors
- 👤 George C. Blytas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:08
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/50; C01B3/508; C01B3/0005; C01B3/001; C01B3/0018; C01B3/0031; C01B3/0047; C01B3/0057; C01B3/0078; F; F17; F17C; F17C11/00; F17C11/005; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/32
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
77 words
A solid hydrogen sorbent composition comprising a sorbent having greater that 50% lanthanum pentanickel alloy and a binder matrix selected from the group consisting of (i) non-hydrogenated block copolymers having at least two monoalkenyl arene polymer end blocks A and at least one elastomeric conjugated diene mid block B, and (ii) selectively hydrogenated block copolymers having at least two monoalkenyl arene polymer end blocks C and at least one substantially completely hydrogenated diene polymer mid block D.
Claim 2
Dependent Claim
77 words
A solid hydrogen sorbent composition comprising a sorbent having greater that 50% lanthanum pentanickel alloy and a binder matrix selected from the group consisting of (i) non-hydrogenated block copolymers having at least two monoalkenyl arene polymer end blocks A and at least one elastomeric conjugated diene mid block B, and (ii) selectively hydrogenated block copolymers having at least two monoalkenyl arene polymer end blocks C and at least one substantially completely hydrogenated diene polymer mid block D.
Claim 3
Dependent Claim
29 words
A composition according to claim 1 wherein the hydrogen sorbent composition comprises about 99% to about 70% by weight sorbent and about 1% to about 30% by weight binder.
Claim 4
Dependent Claim
38 words
A composition according to claim 1 wherein said binder is a selectively hydrogenated block copolymer wherein at least 80% of the aliphatic double bonds are hydrogenated while no more than about 25% of the aromatic bonds are hydrogenated.
Claim 5
Dependent Claim
31 words
A composition according to claim 1 wherein said sorbent comprises at least about 80% lanthanum pentanickel with the remainder being selected from the group consisting of copper, nickel and iron metals.
Claim 6
Dependent Claim
14 words
A composition according to claim 1 wherein said sorbent comprises lanthanum pentanickel and Mischmetal.
Claim 7
Dependent Claim
31 words
A composition according to claim 1 wherein said hydrogen sorbent composition comprises about 45% by weight lanthanum pentanickel alloy, about 45% by weight copper metal, and about 10% by weight binder.
Claim 8
Dependent Claim
75 words
A process for absorbing and subsequently desorbing hydrogen gas in and from the solid hydrogen sorbent composition of claim 1 which process comprises: a. subjecting said solid hydrogen sorbent composition to an external hydrogen gas pressure which exceeds the plateau pressure at the absorption temperature; and b. reducing the hydrogen gas pressure to which said solid hydrogen sorbent composition is subjected to a value which is lower than the plateau pressure at the desorption temperature.
Claim 9
Dependent Claim
21 words
A process according to claim 7 wherein the absorption temperature and desorption temperature varies between about 0° C. and 150° C.
Claim 10
Dependent Claim
26 words
A process according to claim 8 wherein the external hydrogen gas pressure and the hydrogen gas pressure varies from about 10 psia to about 2,000 psia.
Claim 11
Dependent Claim
29 words
A process according to claim 7 wherein said hydrogen sorbent composition comprises about 99% to about 70% by weight sorbent and about 1% to about 30% by weight binder.
References Cited (Backward Citations)
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Cited
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GB1291976A
Cited
US3700633A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-18 | 1981-01-17 | 1981-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-18 | 1985-01-17 | 1985-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-18 | 1989-01-17 | 1989-07-19 | $7700.00 | Window Closed / Lapsed |