US4906258A
Expired / Lapsed
US
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Method of conducting an absorption or desorption reaction between a gas and a solid
Assignee: Societe National Elf Aquitaine
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Filing: 1988-09-02
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Granted: 1990-03-06
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Expires: 2008-09-02
Abstract
Abstract Method of conducting an absorption or desorption reaction between a gas and a solid in which the reaction medium is formed using a powdery solid having a compaction between 5 and 60% of the optimum compaction of the reaction without graphite.
Inventors
- 👤 Marianne Balat
- 👤 Alain Roca
- 👤 Bernard Spinner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:44
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/16; B; B01; B01J; B01J8/00; B01J8/02; B01J8/0285; F; F25; F25B; F25B17/00; F25B17/08; Y; Y10; Y10S; Y10S95/00; Y10S95/90
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
103 words
A method of conducting an absorption or desorption reaction between a gas and a solid, said solid being formed by one or more salts in powdery form, in the presence of expanded graphite, in which method the reaction medium comprises expanded graphite in a positive amount up to 60% by weight, characterized in that, in order to form the reaction medium, a powdery solid is used having a compaction between 5 and 60% of the optimum compaction of the reaction without graphite, wherein said optimum compaction is the compaction value for which the energy density is a maximum for the reaction without graphite.
Claim 2
Independent Claim
103 words
A method of conducting an absorption or desorption reaction between a gas and a solid, said solid being formed by one or more salts in powdery form, in the presence of expanded graphite, in which method the reaction medium comprises expanded graphite in a positive amount up to 60% by weight, characterized in that, in order to form the reaction medium, a powdery solid is used having a compaction between 5 and 60% of the optimum compaction of the reaction without graphite, wherein said optimum compaction is the compaction value for which the energy density is a maximum for the reaction without graphite.
Claim 3
Dependent Claim
41 words
Method according to claim 1, in which the percentage of expanded graphite is between 20 and 25% included by weight, characterized in that the compaction of the salt is chosen in a range between 20 and 60% of the optimum compaction.
Claim 4
Dependent Claim
38 words
Method according to claim 1, in which the percentage of expanded graphite is between 25 excluded and 35% included by weight, characterized in that compaction of the salt is chosen between 15 and 55% of the optimum compaction.
Claim 5
Dependent Claim
36 words
Method according to claim 1, in which the percentage of expanded graphite is between 35 excluded and 40% included, characterized in that compaction of the salt is chosen between 15 and 50% of the optimum compaction.
Claim 6
Dependent Claim
38 words
Method according to claim 1, in which the percentage of expanded graphite is between 40 excluded and 45% included by weight, characterized in that compaction of the salt is chosen between 10 and 50% of the optimum compaction.
Claim 7
Dependent Claim
38 words
Method according to claim 1, in which the percentage of expanded graphite is between 45 excluded and 50% included by weight, characterized in that compaction of the salt is chosen between 10 and 45% of the optimum compaction.
Claim 8
Dependent Claim
39 words
Method according to claim 1, in which the expanded graphite percentage is between 50 excluded and 60% by weight, characterized in that compaction of the salt is chosen in a range between 5 and 40% of the optimum compaction.
References Cited (Backward Citations)
US1950502A
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US2196021A
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US2379142A
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US3549560A
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US4111991A
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FR2546278A1
Cited
US4595774A
Cited
FR2593588A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-05 | 1993-09-04 | 1994-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-05 | 1997-09-04 | 1998-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-05 | 2001-09-04 | 2002-03-06 | $7700.00 | Window Closed / Lapsed |