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US4567033A
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US
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Low-energy method for freeing chemically bound hydrogen
Assignee: RTX Corp
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Filing: 1984-10-25
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Granted: 1986-01-28
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Expires: 2004-10-25
Abstract
Abstract A method for reducing the energy required in a dehydrogenation reaction particularly adapted to methods for transporting and storing thermal energy. The equilibrium of a hydrogenation-dehydrogenation equilibrium reaction system is shifted by removing at least a portion of the generated equilibrium reaction hydrogen and reacting the removed hydrogen with oxygen to produce water and heat and adding the produced water and heat into the equilibrium reaction system. This method has particular use in hydrogenation-dehydrogenation equilibrium reaction systems useful for transporting and storing thermal energy.
Inventors
- 👤 Arthur S. Kesten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:38
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/367; Y; Y10; Y10S; Y10S585/00; Y10S585/909; Y10S585/91
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
64 words
A method for reducing the energy required for a dehydrogenation reaction by shifting the equilibrium of the hydrogenation-dehydrogenation equilibrium reaction system comprising: (a) removing at least a portion of the generated equilibrium reaction hydrogen through a membrane; (b) reacting the removed hydrogen with oxygen to produce water and heat; and (c) adding substantially all the produced water and heat into the equilibrium reaction system.
Claim 2
Independent Claim
64 words
A method for reducing the energy required for a dehydrogenation reaction by shifting the equilibrium of the hydrogenation-dehydrogenation equilibrium reaction system comprising: (a) removing at least a portion of the generated equilibrium reaction hydrogen through a membrane; (b) reacting the removed hydrogen with oxygen to produce water and heat; and (c) adding substantially all the produced water and heat into the equilibrium reaction system.
Claim 3
Dependent Claim
19 words
The method of claim 1 wherein the reaction system is selected from the group consisting of cyclohexane-benzene and methylcyclohexane-toluene.
Claim 4
Dependent Claim
16 words
The method as recited in claim 1 wherein the hydrogen is removed through a palladium membrane.
Claim 5
Dependent Claim
14 words
The method as recited in claim 1 wherein 25-30% of the hydrogen is removed.
Claim 6
Dependent Claim
28 words
The method for reducing the reaction temperature of a dehydrogenation reaction recited in claim 1 wherein the hydrogen and oxygen are reacted in the presence of platinum catalysts.
Claim 7
Independent Claim
64 words
A method of storing, transporting and releasing hydrogen fuel utilizing a cyclohexane or methylcyclohexane hydrogenation-dehydrogenation equilibrium reaction system wherein the improvement comprises: (a) removing at least a portion of the generated equilibrium reaction hydrogen through a membrane; (b) reacting the removed hydrogen with oxygen to produce water and heat; and (c) adding substantially all the produced water and heat into the equilibrium reaction system.
Claim 8
Independent Claim
64 words
A method of storing, transporting and releasing hydrogen fuel utilizing a cyclohexane or methylcyclohexane hydrogenation-dehydrogenation equilibrium reaction system wherein the improvement comprises: (a) removing at least a portion of the generated equilibrium reaction hydrogen through a membrane; (b) reacting the removed hydrogen with oxygen to produce water and heat; and (c) adding substantially all the produced water and heat into the equilibrium reaction system.
Claim 9
Dependent Claim
24 words
The improved method of storing, transporting and releasing hydrogen fuel as recited in claim 6 wherein the hydrogen is removed through a palladium membrane.
Claim 10
Dependent Claim
22 words
The improved method of storing, transporting and releasing hydrogen fuel as recited in claim 6 wherein 25-30% of the hydrogen is removed.
Claim 11
Dependent Claim
28 words
The improved method of storing, transporting and releasing hydrogen fuel as recited in claim 6 wherein the hydrogen and oxygen are reacted in the presence of platinum catalysts.
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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) | 1989-01-27 | 1989-07-29 | 1990-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-27 | 1993-07-29 | 1994-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-27 | 1997-07-29 | 1998-01-28 | $7700.00 | Window Closed / Lapsed |