WO1998035744A1 - Apparatus and method for removing entrained liquid from gas or air - Google Patents
Apparatus and method for removing entrained liquid from gas or air Download PDFInfo
- Publication number
- WO1998035744A1 WO1998035744A1 PCT/CA1997/000107 CA9700107W WO9835744A1 WO 1998035744 A1 WO1998035744 A1 WO 1998035744A1 CA 9700107 W CA9700107 W CA 9700107W WO 9835744 A1 WO9835744 A1 WO 9835744A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas
- bed
- liquid
- solid material
- outlet
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/266—Drying gases or vapours by filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
Definitions
- the present invention relates to an apparatus and method for removing dissolved liquid from gas or air.
- Canadian Patent No. 1,125,671 issued to John R. McKenzie discloses an apparatus for filtering moisture and impurities from natural gas utilizing a gravel bed as a filter and a series of metal baffle plates to inhibit gas flow. Gravel particles greater than one inch are used. The bed is such that only filtering is accomplished without any reduction in the dew point. Thus, dissolved liquid in the gas is not removed leaving significant moisture still in the gas. It is an object of the present invention to provide an improved method and apparatus for removing liquid entrained and dissolved in gas from the gas.
- the apparatus includes a distributor located proximate an inlet region of a bed containing a network of channels bounded by solid material having sharp protuberances so as to cause the liquid to condense. Further included is a collector located proximate an outlet region of the bed operative to collect the liquid that has condensed in the bed and direct the gas which emerges from the bed away from the bed. Prior efforts have removed the mist or non-dissolved moisture in air but not the dissolved moisture. As a result the present apparatus causes a reduction in the dew point of the gas that passes through the device
- the solid material may be formed by particulates and may, in fact, be gravel.
- a further refinement which increases liquid extraction efficiency is to mix sand with the gravel.
- the means for directing may be a plate having an array of holes through which the gas may pass so as to distribute the gas over substantially the entire cross-sectional area of the bed.
- the means for collecting may include means for applying gravitational force to the liquid so as to cause it to move in a direction away from the flow of the gas.
- the apparatus may include a housing having an inlet chamber, a filter chamber and an outlet chamber.
- the inlet chamber may have a gas port for admitting gas therein and a distributor at an input end of the bed for distributing the gas over a cross-sectional area of the bed.
- the housing may be a cylindrical tank.
- a method of removing liquid entrained or dissolved in gas from the gas which includes directing the gas through a bed containing a network of channels bounded by solid material having sharp protuberances which cause the liquid entrained in the gas to condense, and collecting the liquid that has condensed and directing the gas which emerges from the bed away from the bed.
- Fig. 1 is a cross-sectional view in elevation of a vertical arrangement.
- cylindrical tank 70 has three regions.
- the first region is an inlet chamber 72 separated by a plate 71 from a second region which is a filter section 74.
- Filter section 74 is separated by a plate 81 from a third region which is an outlet chamber 76.
- Inlet pipe 78 " forms a passageway for gas or air into the inlet chamber 72.
- Pipe 80 having an inlet near a closed end of the inlet chamber 72 provides fluid communication between the latter chamber and the filter section 74 through a plurality of 1/2 inch holes 82 spaced one inch apart at the other end of pipe 80.
- Filter section 74 is filled with a gravel bed with gravel particles in the range of 1/4 inch in diameter mixed with sand.
- the amount of sand may vary from being negligible to any desired amount that may be selected to give a required drying efficiency as balanced against allowed inlet to outlet pressure drop.
- Plate 81 has a central portion with an array of 1/2 inch holes 84 therethrough, and an annular array of holes 86 around the outside. Beneath the outside holes is a tubular baffle 88 which extends into the outlet chamber 76.
- a collector 87 at the bottom of outlet chamber 76 collects condensed liquid.
- a pipe 91 near the top of the outlet chamber 76 provides for the exit of gas while near the bottom is a pipe 92 designed as a passageway for separated liquid.
- gas or air enters pipe 78, fills inlet chamber 72 and enters at the top of pipe 80.
- the pressure in chamber 72 is in the region of 800 to 1200 psi.
- the gas then passes through holes 82 into the gravel bed in filter section 74.
- the dissolved liquid in the gas condenses and flows to the outside and downwardly.
- the liquid passes through holes 86 and into the bottom of outlet chamber 76 where it flows out pipe 92 upon reaching the level of the outlet nozzle 93. Clean gas which emerges through holes 84 exits through outlet port 90 of pipe 91 with very little pressure drop from the pressure in the inlet chamber 72.
- the dew point of the gas is lowered indicating that dissolved liquid is being removed from the gas.
- particle sizes of the order of 1/4 inch have been described.
- the preferred size range depends upon the gas flow rates.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002270152A CA2270152A1 (en) | 1997-02-14 | 1997-02-14 | Apparatus and method for removing entrained liquid from gas or air |
PCT/CA1997/000107 WO1998035744A1 (en) | 1997-02-14 | 1997-02-14 | Apparatus and method for removing entrained liquid from gas or air |
AU17145/97A AU1714597A (en) | 1997-02-14 | 1997-02-14 | Apparatus and method for removing entrained liquid from gas or air |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CA1997/000107 WO1998035744A1 (en) | 1997-02-14 | 1997-02-14 | Apparatus and method for removing entrained liquid from gas or air |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998035744A1 true WO1998035744A1 (en) | 1998-08-20 |
Family
ID=4173197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA1997/000107 WO1998035744A1 (en) | 1997-02-14 | 1997-02-14 | Apparatus and method for removing entrained liquid from gas or air |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU1714597A (en) |
CA (1) | CA2270152A1 (en) |
WO (1) | WO1998035744A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2423923A2 (en) * | 2010-08-25 | 2012-02-29 | Areva NP GmbH | Method for releasing pressure of a nuclear power plant, pressure release system for a nuclear power plant and nuclear power plant |
US20130255206A1 (en) * | 2012-04-02 | 2013-10-03 | Robert McKenzie | Separator for a gas stream |
CN103993873A (en) * | 2014-05-29 | 2014-08-20 | 淮南矿业(集团)有限责任公司 | Pressure measuring device |
CN104989383A (en) * | 2015-07-08 | 2015-10-21 | 淮南矿业(集团)有限责任公司 | Gas pressure measuring device and gas pressure measuring system |
EP2974782A1 (en) * | 2014-07-17 | 2016-01-20 | Antonio Munoz Segura | Steam conditioner-separator apparatus |
US9744489B2 (en) | 2014-07-11 | 2017-08-29 | Robert McKenzie | Phase separator using pressure differential |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3653181A (en) * | 1971-03-09 | 1972-04-04 | Air Inc Van | Deliquescent desiccant gas dryer and method |
US3751231A (en) * | 1971-01-21 | 1973-08-07 | A Niedzielski | Apparatus for use in treating fluids |
US4290785A (en) * | 1979-02-12 | 1981-09-22 | Alldredge Robert L | Dust collector and method of operation |
JPS5850766B2 (en) * | 1975-12-09 | 1983-11-12 | 川崎重工業株式会社 | Shuujin Sochi |
EP0399393A2 (en) * | 1989-05-22 | 1990-11-28 | IEG Industrie-Engineering GmbH | Apparatus for the removal by suction of air enriched with gaseous impurities from an area of contaminated soil |
US5512088A (en) * | 1994-06-23 | 1996-04-30 | Interglobe Gas Technology, Inc. | Separator |
-
1997
- 1997-02-14 WO PCT/CA1997/000107 patent/WO1998035744A1/en not_active Application Discontinuation
- 1997-02-14 AU AU17145/97A patent/AU1714597A/en not_active Abandoned
- 1997-02-14 CA CA002270152A patent/CA2270152A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3751231A (en) * | 1971-01-21 | 1973-08-07 | A Niedzielski | Apparatus for use in treating fluids |
US3653181A (en) * | 1971-03-09 | 1972-04-04 | Air Inc Van | Deliquescent desiccant gas dryer and method |
JPS5850766B2 (en) * | 1975-12-09 | 1983-11-12 | 川崎重工業株式会社 | Shuujin Sochi |
US4290785A (en) * | 1979-02-12 | 1981-09-22 | Alldredge Robert L | Dust collector and method of operation |
EP0399393A2 (en) * | 1989-05-22 | 1990-11-28 | IEG Industrie-Engineering GmbH | Apparatus for the removal by suction of air enriched with gaseous impurities from an area of contaminated soil |
US5512088A (en) * | 1994-06-23 | 1996-04-30 | Interglobe Gas Technology, Inc. | Separator |
Non-Patent Citations (1)
Title |
---|
DATABASE WPI Week 8349, Derwent World Patents Index; AN 83-836858, XP002043647 * |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2423923A2 (en) * | 2010-08-25 | 2012-02-29 | Areva NP GmbH | Method for releasing pressure of a nuclear power plant, pressure release system for a nuclear power plant and nuclear power plant |
EP2423923A3 (en) * | 2010-08-25 | 2014-08-13 | AREVA GmbH | Method for releasing pressure of a nuclear power plant, pressure release system for a nuclear power plant and nuclear power plant |
US10304573B2 (en) | 2010-08-25 | 2019-05-28 | Framatome Gmbh | Method for the pressure relief of a nuclear power plant, pressure-relief system for a nuclear power plant and associated nuclear power plant |
US20130255206A1 (en) * | 2012-04-02 | 2013-10-03 | Robert McKenzie | Separator for a gas stream |
US9610524B2 (en) * | 2012-04-02 | 2017-04-04 | Robert McKenzie | Separator for a gas stream |
CN103993873A (en) * | 2014-05-29 | 2014-08-20 | 淮南矿业(集团)有限责任公司 | Pressure measuring device |
CN103993873B (en) * | 2014-05-29 | 2017-02-01 | 淮南矿业(集团)有限责任公司 | Pressure measuring device |
US9744489B2 (en) | 2014-07-11 | 2017-08-29 | Robert McKenzie | Phase separator using pressure differential |
EP2974782A1 (en) * | 2014-07-17 | 2016-01-20 | Antonio Munoz Segura | Steam conditioner-separator apparatus |
CN104989383A (en) * | 2015-07-08 | 2015-10-21 | 淮南矿业(集团)有限责任公司 | Gas pressure measuring device and gas pressure measuring system |
Also Published As
Publication number | Publication date |
---|---|
AU1714597A (en) | 1998-09-08 |
CA2270152A1 (en) | 1998-08-20 |
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