US5044164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing a chemical compound
Assignee: Conopco Inc
•
Filing: 1989-04-10
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Granted: 1991-09-03
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Expires: 2009-04-10
Abstract
Abstract A method of preparing a clathrate of a gas-hydrate-forming material and water by preparing a dispersion of liquid water in a continuous fluid phase comprising the gas-hydrate-forming material and controlling the temperature and the pressure such that a clathrate is formed.
Inventors
- 👤 Rodney D. Bee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:30
CPC Classifications
C; C01; C01B; C01B32/00; C01B32/50
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
60 words
Method of preparing a clathrate of a gas-hydrate-forming material and water, the method comprising: (i) preparing an emulsion of liquid water in a continuous fluid phase including the gas-hydrate-forming material while using a water-in-oil emulsifier; and (ii) controlling the temperature and pressure of the emulsion such that the gas-hydrate-forming material is dissolved into liquid water and the clathrate is formed.
Claim 2
Dependent Claim
60 words
Method of preparing a clathrate of a gas-hydrate-forming material and water, the method comprising: (i) preparing an emulsion of liquid water in a continuous fluid phase including the gas-hydrate-forming material while using a water-in-oil emulsifier; and (ii) controlling the temperature and pressure of the emulsion such that the gas-hydrate-forming material is dissolved into liquid water and the clathrate is formed.
Claim 3
Dependent Claim
16 words
Method according to claim 1, wherein the continuous phase at least predominantly comprise liquid gas-hydrate-forming material.
Claim 4
Dependent Claim
49 words
Method according to claim 2, wherein the continuous phase has a lower solidification point than the clathrate-forming temperature under the same conditions, and wherein the method further comprises controlling the temperature such that the continuous phase does not solidify and thereafter separating the clathrate particles from the continuous phase.
Claim 5
Dependent Claim
30 words
Method according to claim 2 wherein the method further comprises lowering the temperature after the clathrate formation to freeze at least some of the continuous phase containing the clathrate particles.
Claim 6
Dependent Claim
14 words
Method according to claim 2, wherein the gas-hydrate forming material is CO 2 .
Claim 7
Dependent Claim
32 words
Method according to claim 1, wherein the continuous phase is liquid and is selected such that the gas-hydrate-forming material is more soluble in the continuous liquid phase than in the water phase.
Claim 8
Dependent Claim
49 words
Method according to claim 6, wherein the continuous phase has a lower solidification point than the clathrate-forming temperature under the same conditions, and wherein the method further comprises controlling the temperature such that the continuous phase does not solidify and thereafter separating the clathrate particles from the continuous phase.
Claim 9
Dependent Claim
49 words
Method according to claim 1, wherein the continuous phase has a lower solidification point than the clathrate-forming temperature under the same conditions, and wherein the method further comprises controlling the temperature such that the continuous phase does not solidify and thereafter separating the clathrate particles from the continuous phase.
Claim 10
Dependent Claim
30 words
Method according to claim 1, wherein the method further comprises lowering the temperature after the clathrate formation to freeze at least some of the continuous phase containing the clathrate particles.
Claim 11
Dependent Claim
19 words
Method according to claim 1, wherein the gas-hydrate-forming material is carbon dioxide and the continuous phase comprises an oil.
Claim 12
Dependent Claim
13 words
Method according to claim 1, wherein the gas-hydrate-forming material is CO 2 .
Claim 13
Dependent Claim
15 words
Method according to claim 1 wherein the water includes small amounts of other compatible compounds.
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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) | 1994-09-02 | 1995-03-04 | 1995-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-02 | 1999-03-04 | 1999-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-02 | 2003-03-04 | 2003-09-03 | $7700.00 | Window Closed / Lapsed |