WO1998018542B1 - Gas dehydration process - Google Patents
Gas dehydration processInfo
- Publication number
- WO1998018542B1 WO1998018542B1 PCT/US1997/019756 US9719756W WO9818542B1 WO 1998018542 B1 WO1998018542 B1 WO 1998018542B1 US 9719756 W US9719756 W US 9719756W WO 9818542 B1 WO9818542 B1 WO 9818542B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- accordance
- dehydrating
- mixtures
- glycol
- dissolved salt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Abstract
A process for dehydrating gaseous fluids, such as natural gas, in which the gaseous fluid is contacted with a dehydrating composition comprising a glycol, at least one aromatics solubility depressant and a dissolved salt comprising at least one alkali metal carboxylate. The glycol is preferably ethylene glycol, diethylene glycol, triethylene glycol and mixtures thereof. The dissolved salt preferably comprises up to about 33 % by weight of the dehydrating composition.
Claims
1. A process for dehydrating a gaseous fluid comprising: contacting said gaseous fluid with a dehydrating composition comprising a glycol selected from the group consisting of triethylene glycol, diethylene glycol, ethylene glycol, and mixtures thereof, at least one aromatics solubility depressant selected from the group consisting of phenyl ether, 1 ,2-diphenylethane, o-terphenyl, triphenylmethane, Marlotherm L, Marlotherm S, Dowtherm G, Dowtherm J, Novolak, 2-phenoxybiphenyl, Marlotherm SH, a solution comprising by weight about 0-40% diphenylether, about 5-65% biphenylphenylether and about 0-35%) polyphenylphenols, and mixtures thereof, and at least one dissolved salt comprising at least one alkali metal carboxylate.
2. A process in accordance with Claim 1, wherein said dehydrating composition comprises up to about 35% by weight of said aromatics solubility depressant.
3. A process in accordance with Claim 1, wherein said dehydrating composition comprises up to about 24% by weight of said aromatics solubility depressant.
4. A process in accordance with Claim 1, wherein said at least one dissolved salt is selected from the group consisting of alkali metal acetates, alkali metal formates and mixtures thereof.
5. A process in accordance with Claim 1, wherein said at least one dissolved salt is selected from the group consisting of potassium acetate, potassium formate, sodium acetate, lithium acetate hydrate, lithium acetate, and mixtures thereof.
6. A process in accordance with Claim 1, wherein said at least one dissolved salt comprises up to about 33% by weight of said dehydrating composition.
7. A process in accordance with Claim 1, wherein said gaseous fluid is natural gas.
8. A process in accordance with Claim 1, wherein said gaseous fluid is contacted by said dehydrating composition in a continuous counter current contact zone.
9. A process in accordance with Claim 10, wherein a temperature in said continuous counter current contact zone is in the range of about 58°F to about 105°F.
STATEMENT UNDER ARTICLE 19(1)
Original Claim 1 has been deleted and replaced with new Claim 1. Original Claims 2 and 3 have been deleted. Original Claims 4-1 1 have been renumbered as Claims 2-9, respectively. Applicant is submitting Replacement Pages 17-18.
21
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU50053/97A AU5005397A (en) | 1996-10-31 | 1997-10-31 | Gas dehydration process |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/741,615 US5725637A (en) | 1994-03-21 | 1996-10-31 | Gas dehydration process |
| US08/741,615 | 1996-10-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1998018542A1 WO1998018542A1 (en) | 1998-05-07 |
| WO1998018542B1 true WO1998018542B1 (en) | 1998-06-18 |
Family
ID=24981453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1997/019756 Ceased WO1998018542A1 (en) | 1996-10-31 | 1997-10-31 | Gas dehydration process |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5725637A (en) |
| AU (1) | AU5005397A (en) |
| WO (1) | WO1998018542A1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5853458A (en) * | 1997-04-28 | 1998-12-29 | Gavlin Associates, Inc | Glycol solvents and method thereof |
| US6177597B1 (en) * | 1999-07-06 | 2001-01-23 | Gavlin Associates, Inc. | Glycol solvents and process |
| US6893582B2 (en) * | 2000-02-22 | 2005-05-17 | Clearwater International, L.L.C. | Method of heating a fluid using a line heater comprising an alkali metal formate |
| US6896718B2 (en) | 2000-09-12 | 2005-05-24 | Clearwater International Llc | Gas dehydration with cavitation regeneration of potassium formate dehydrating solution |
| CA2428948C (en) | 2000-11-08 | 2007-01-02 | Clearwater International, L.L.C. | Gas dehydration using membrane and potassium formate solution |
| GB0108386D0 (en) * | 2001-04-04 | 2001-05-23 | Bp Exploration Operating | Process |
| US20030034478A1 (en) * | 2001-07-31 | 2003-02-20 | Clearwater, Inc. | Deicing |
| GB0123409D0 (en) * | 2001-09-28 | 2001-11-21 | Atkinson Stephen | Method for the recovery of hydrocarbons from hydrates |
| EP1310543A1 (en) * | 2001-11-07 | 2003-05-14 | Haldor Topsoe A/S | Process for the drying of a hydrocarbon stream |
| CA2452758A1 (en) * | 2002-04-17 | 2003-10-30 | Clearwater International, Llc | Optimizing inlet air temperature for gas turbines using heat exchanging fluid comprising alkali metal formate |
| US7060198B2 (en) * | 2002-05-08 | 2006-06-13 | Clearwater International, L.L.C. | Heat exchange fluids comprising amine carboxylates |
| US8491712B2 (en) | 2010-09-13 | 2013-07-23 | General Electric Company | Dehydration systems and methods for removing water from a gas |
| US9328302B2 (en) * | 2010-10-27 | 2016-05-03 | Baker Hughes Incorporated | Pipeline hydrate inhibitor and method of reducing hydrates using the hydrate inhibitor |
| WO2017189318A1 (en) | 2016-04-29 | 2017-11-02 | Dow Global Technologies Llc | Composition and process for the dehydration of gases using a glycol, an imidazole compound and an optional additive |
| US10808998B1 (en) | 2017-03-03 | 2020-10-20 | James Benton Cooper | Natural gas drying method and apparatus |
| US11969704B1 (en) | 2017-03-03 | 2024-04-30 | James Benton Cooper | Natural gas drying method and apparatus |
| CN111013330A (en) * | 2019-04-11 | 2020-04-17 | 北京诺维新材科技有限公司 | Dehydration composition and preparation method and application thereof |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1866560A (en) * | 1928-03-05 | 1932-07-12 | Cons Gas Company Of New York | Dehydration of gas |
| US2235322A (en) * | 1940-01-29 | 1941-03-18 | J F Pritchard & Company | Air drying |
| US2394758A (en) * | 1942-12-07 | 1946-02-12 | Dow Chemical Co | Hygroscopic salt solutions containing arsenic inhibitors |
| GB595128A (en) * | 1943-12-17 | 1947-11-27 | Ernst Bergmann | Process for the dehydration of inorganic salts and bases |
| US2988171A (en) * | 1959-01-29 | 1961-06-13 | Dow Chemical Co | Salt-alkylene glycol dew point depressant |
| SU481297A1 (en) * | 1972-10-13 | 1975-08-25 | Институт новых химических проблем АН СССР | The method of cleaning gases, such as hydrogen, nitrogen, argon from oxygen and moisture |
| JPS5824321A (en) * | 1981-08-04 | 1983-02-14 | Hidefumi Hirai | Separation of carbon monoxide |
| US4761395A (en) * | 1987-03-24 | 1988-08-02 | Advanced Technology Materials, Inc. | Process and composition for purifying arsine, phosphine, ammonia, and inert gases to remove Lewis acid and oxidant impurities therefrom |
| SE464853B (en) * | 1988-08-01 | 1991-06-24 | Ahlstroem Foeretagen | PROCEDURE FOR DEHUMATING A GAS, SPECIAL AIR |
| DE3916209A1 (en) * | 1989-05-18 | 1990-11-22 | Bayer Ag | Recovery of solvents from mixts. - by absorption in a liq. absorber contg. one or more benzyl-aromatics |
| US5346537A (en) * | 1992-01-24 | 1994-09-13 | Gas Research Institute | Method and system for controlling emissions from glycol dehydrators |
| US5167675A (en) * | 1992-01-24 | 1992-12-01 | Process Equipment And Service Company, Inc. | Regeneration system for glycol dehydrator |
| US5462584A (en) * | 1994-03-21 | 1995-10-31 | Gas Research Institute | Process for dehydrating natural gas |
-
1996
- 1996-10-31 US US08/741,615 patent/US5725637A/en not_active Expired - Lifetime
-
1997
- 1997-10-31 AU AU50053/97A patent/AU5005397A/en not_active Abandoned
- 1997-10-31 WO PCT/US1997/019756 patent/WO1998018542A1/en not_active Ceased
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