WO1997048478A1 - A continuous gas molecule capturing and removal system - Google Patents
A continuous gas molecule capturing and removal system Download PDFInfo
- Publication number
- WO1997048478A1 WO1997048478A1 PCT/US1997/010668 US9710668W WO9748478A1 WO 1997048478 A1 WO1997048478 A1 WO 1997048478A1 US 9710668 W US9710668 W US 9710668W WO 9748478 A1 WO9748478 A1 WO 9748478A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air stream
- liquid
- air
- wicking
- fibers
- 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
-
- 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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
- B01D53/025—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 by adsorption, e.g. preparative gas chromatography with wetted adsorbents; Chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
- B01D47/028—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by directing the gas through a wetted wire mesh or a perforated plate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- 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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
- B01D53/04—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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0415—Beds in cartridges
-
- 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
- B01D53/268—Drying gases or vapours by diffusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H3/0608—Filter arrangements in the air stream
- B60H3/0633—Filter arrangements in the air stream with provisions for regenerating or cleaning the filter element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H3/0658—Filter elements specially adapted for their arrangement in vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/25—Coated, impregnated or composite adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/93—Toxic compounds not provided for in groups B01D2257/00 - B01D2257/708
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/402—Further details for adsorption processes and devices using two beds
-
- 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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
-
- 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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
- B01D53/04—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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0446—Means for feeding or distributing gases
-
- 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
- B01D53/261—Drying gases or vapours by adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H2003/0691—Adsorption filters, e.g. activated carbon
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2973—Particular cross section
- Y10T428/2975—Tubular or cellular
Definitions
- This invention relates to an air cleaning system and more particularly to a system for continuously removing odors or humidity from an air stream
- Intake air filters commonly encountered in conjunction with internal combustion engines, and removable air filters used in forced air home heating systems are exemplary of the particle filtering p ⁇ or art These filters use a somewhat porous paper filter element or similar filter media on which undesirable particles are retained as air is passed through the filter media
- mechanical entrapment or electrical attraction which is a surface phenomenon wherein the removed particles adhere to the surface of the filter media, and are not suitable for the removal of odors or humidity from an air stream
- An example of an adso ⁇ tive technique for the removal of odors is the use of activated charcoal or a zeolite material as an odor removing element in a device to purify an air stream
- adso ⁇ tive techniques of purifying an air stream are effective only for a relatively short time pe ⁇ od, are relatively inefficient at low odor concentration levels, and frequently result in a relatively high pressure differential across the filter element.
- relatively large quantities of filter media are required in such devices, however, the relatively large pressure differential problem would still remain.
- These prior devices are usually operated mechanical on a cyclic bases.
- the present invention provides an unique filtration device which continuously removes several gas phase contaminants from an air stream through the use of a wicking fiber material containing a selected liquid, which can capture the gas phase contaminants, and which extends from the air stream to be cleaned into another air stream which can strip and carry away the unwanted gas phase contaminants.
- Wicking fibers have the ability to carry a liquid along their surface and to retain the liquid so it is not easily dislodged.
- Wicking fibers such as those disclosed in U.S. Patent 5,057,368 are very small and well suited to the practice of the present invention.
- These generally hollow wicking fibers include internal longitudinal cavities each with a relatively small longitudinal opening extending to their outer surface.
- the individual wicking fibers rapidly draw the selected liquid, with which it comes into contact, through the internal cavities.
- the abso ⁇ tion liquid remains within the wicking fiber cavities and generally does not enter the space between the wicking fibers yet through the longitudinal openings the liquid is in communication with the air stream flowing past the wicking fibers.
- Undesirable gas molecules are removed from the air stream by inte ⁇ osing a plurality of the wicking fibers which include in their internal cavities a liquid having an affinity for the undesired molecules.
- the longitudinal extending opens in the wicking fibers permits the liquid retained in the wicking fiber cavities to interact with the gas molecules within the air stream so as to absorb the unwanted gas molecules.
- a concentration factor induced molecular migration effectively conveys the undesirable gas molecules within the liquid away from the air stream to be cleaned and into the stripping air stream, setting up a steady state concentration gradient with new gas molecules continuously being absorbed and transported to the stripper side where they are continuously stripped off.
- the wicking fibers containing the selected liquid are disposed in a first chamber through which the air stream to be cleaned is channeled and extend into a second chamber through which the air stream to carry away the gas contaminates is channeled.
- a generally parallel format of these fibers is constructed so that part of the fiber mat transverses both chambers of the mechanical contactor/stripper device.
- the mechanical housing for the wicking fiber mat accomplishes two functions, (a) it allows the incoming gas stream in need of purification to come into intimate contact with the abso ⁇ tion liquid in the impregnated wicking fiber media and (b) the second side allows for a warm stripping gas to regenerate the liquid in the wicking fibers cavities by removing the gas contaminates.
- these wicking fibers allow the liquid phase to shuttle between both chambers of the mechanical housing picking up gas molecules and transporting them to the stripping chamber side and releasing the molecules into the cleansing fluid.
- the present invention is particularly suitable for use in a vehicle cabin or a building air filtration system. This invention can be use in a customized fashion to control humidity, remove toxic and unwanted gases and to purify various gases. Since this filter does not rely on adso ⁇ tion, wherein the particles to be removed attach to the surface of the filter material elements, but rather abso ⁇ tion, molecular motion mobility can be harnessed to move unwanted gases from one zone to another in a non-mechanical manner.
- a device according to the present invention provides for nonmechanical and continuous noncyclic regeneration or cleaning of a gas stream.
- FIG. 1 is a diagrammatic perspective illustration of a gas phase removal device according to the present invention
- FIG. 2 is a diagrammatic view of a gas molecule filtering device according to the present invention
- FIG. 3 is an enlarged view of a wicking fiber which is particularly suitable for practicing the present invention
- FIG 4 is a graph showing the results of using the invention for continuous dehumidification of an air stream
- FIG. 5 is a graph showing the results of using the invention for continuously removing toluene molecules form an air stream.
- FIG. 6 is an enlarged view of a C-shaped wicking fiber.
- Gas removal system 10 utilizes a filter element 12 formed from numerous wicking fibers 20, as shown in figure 3, containing a gas molecule absorbing liquid. Filter element 12 extends from an air stream to be cleaned into another air stream which can strip and remove some of the contaminating gas molecules from the absorbing liquid.
- the gas absorbing liquid typically consists of an inert solvent with various additives dissolved therein.
- the additives are added to the inert solvent to enhance the solubilization of various vapors.
- the inert carrier preferably is a non volatile liquid such as glycerol, polyethylene glycol, polypropylene, mineral oil, water or any other high boiling point liquid.
- the gas absorbing liquid which has an affinity for the undesired air-borne gases are selected and disposed within internal channels or cavities 22 formed in the individual wicking fibers 20
- the liquid media selected uses abso ⁇ tion rather than adso ⁇ tion as its mechanism to decontaminate or purify the air stream.
- the abso ⁇ tion liquids used are selected to absorb the vapors of interest, to be non hazardous and to neutralize specific gases and odor vapors.
- various assitives can be used in conjunction with liquid carrier in order to facilitate abso ⁇ tion of particular gases, i.e. lithium chloride of calcium chloride for water vapor removal or paracyclaphanes for removal of voltile organic compounds.
- the possible combinations of liquid carriers and abso ⁇ tion assisting agents are nearly unlimited as is well know to those skilled in the art
- the liquid carrier selected should be capable of lightly absorbing a particular gas molecule in a reversible manner so that it can be easily stripped off
- a wicking fiber which is particularly suitable for practicing this invention is disclosed in U.S. Patent No. 5,057,368
- This patent discloses a trilobal or quadrilobal fiber formed from thermoplastic polymers wherein the fiber has a cross-section with a central core and three or four T-shaped lobes 26. The legs of the lobes intersect at the core so that the angle between the legs of adjacent lobes is from about 80 degrees to 130 degrees.
- the thermoplastic polymer is typically a nylon, a polyester, a polyolefin or a combination thereof.
- the wicking fiber as illustrated in Figure 3 is formed as an extruded strand having three hollow interior longitudinally extending cavities 22 each of which communicates with the outer strand surface by way of longitudinal extending slots 24.
- the wicking fibers 20 are relatively small having a diameter of 30 to 250 microns.
- the capillary forces within the individual cavities 22 are so much greater than those external to the fiber 20 that the abso ⁇ tive liquid is readily wicked up the interior of the fiber 20 without appreciable wetting of the external surfaces 28 or filling the inter fiber voids.
- the fibers 20 strongly retain the liquid through capillary action so that the fiber mat 12 is not wet to the touch and the liquid will not shake off In a filter mat 12 of such wicking fibers 20 the area between the individual strands remains relatively free of the gas absorbing liquid with which the internal cavities 22 of each fiber 20 are filled.
- the filter element may be made of one or more type of wicking material strands such as nylon, polyester, or polyolefins.
- the three T-Shaped cross-section segments may have their outer surface 28 curved, as shown, or straight While the wicking fiber 20 is depicted as three lobed other number of lobes are suitable.
- other external or internal wicking fibers with C-shaped or other cross sections may also be suitable for wicking the gas absorbing liquid
- Figure 6 shows an enlarged view of a C-shaped wicking fiber 30 with a channel 32 and a longitudinal extending opening 34
- the size of the opening 34 relative to the circumference of the fiber 30 is not critical provided the selected fibers have the desired wicking properties.
- the specific shape of the wicking fibers is not important so long as the fibers selected can move the abso ⁇ tion liquid, with which it comes into contact, along its surface and then hold the abso ⁇ tion liquid to its surface so that it is not easily displaced.
- the disclosed gas removal system 10 includes a gas removal or abso ⁇ tion chamber 16 and a stripping chamber 18 formed within a housing 14
- the fiber mesh or filter element 12 consists of numerous wicking fibers 20 disposed generally parallel and oriented to extend within both chambers 16, 18
- the housing 14 defines the outside of the device 10. In Figure I, for clarity, the top of the housing 14 is not shown. Housing 14 is constructed so that the two chambers 16, 18 are separate. A partition 17 within housing 10 separates chamber 16 from chamber 18. The air stream to be cleaned enters chamber 16 and is directed through the portion of the impregnated fiber mesh 12 which is disposed across chamber 16 All air flowing through chamber 16 must flow through the wicking fiber mesh 12.
- Fiber mesh 12 is constructed with many impregnated wicking fibers 20 and has sufficient thickness so that the entire air stream flowing through chamber 16 comes into intimate contact with the selected liquid within the cavities 22 of the wicking fibers 20.
- the selected liquid which has an affinity for the undesired gas molecules absorbs the gas molecules and thus removes them from the air stream through chamber 16
- the wicking fibers 20, containing the liquid with the absorbed unwanted gas molecules, extends into a stripping chamber 18 wherein an air stream passes over the wicking fibers 20 and strips away and carries to an exhaust the unwanted gas molecules.
- a concentration factor induced molecular migration effectively conveys the undesirable gas molecules within the liquid from the air stream to be cleaned within chamber 16 into the stripping air stream through chamber 18.
- the stripping air stream may be heated or otherwise modified to facilitate removal of the undesirable gas molecules.
- the direction of flow of the air streams which is shown different in
- FIG. 1 and 2 is not important.
- the size of chambers 16 and 18 and the flow rates of the air streams can be designed to suit a particular application.
- the selected liquid acts a shuttling carrier capable of transporting gases across the partition 17 to the stripping chamber 18 and returning again via the generally parallel arrangement of fibers 20.
- the disclosed gas molecule removal device can be used to remove water molecules from an air stream and to thus dehumidify the air.
- Referring now to the graphs shown in Figure 4 supply air with a relative humidity approaching 100% has the humidity lowered to less than 50% after being treated according to the invention.
- the process air used in the experiment was
- the disclosed gas molecule system can also be used to continuously remove toluene molecules from an air stream.
- FIG 5 the graphs show toluene uptake by a mineral oil absorbent at two different stripping flow rates 14 SLPM and 28 SLPM The experiment was conducted at an ambient air temperature of 22 to 24 °C, using a toluene challenge level of lOOppm. Minimal toluene uptake was observed in an experiment in which a dry unimpregnated fiber screen containing no absorbent was used. In this series of experiments, the residence time of gas within the wicking fiber layer was about 60 msec.
- Undesirable air borne material and gas contaminants are removed from an air stream by inte ⁇ osing a plurality of at least partially hollow wicking fibers 20 in the air stream.
- the hollow portions 22 of the wicking fibers contain a liquid, including a component having an affinity for the undesirable material or gas, which communicates with the air stream through an opening 24.
- the undesirable material or gas is absorbed by the liquid within the wicking fibers 20.
- the undesirable material or gas in solution within the liquid is then conveyed from the cleaned air stream by a concentration factor induced molecular migration in to an exhaust air stream which strips and carries away the undesirable material or gas molecules.
- the wicking fiber approach of the present invention has significant advantages over the use of activated charcoal or carbon.
- the impregnated wicking fibers 20 can have an extremely high odor absorbing capacity, many times greater than an equivalent carbon volume.
- the pressure drop across an air filter 10 is much smaller than the drop across a carbon filter for the same capacity and removal efficiency.
- the wicking fiber filter 10 can be impregnated with liquids to remove a broader range of gases that virgin carbon. Further, the wicking fiber filter system 10 will not off-gas like carbon.
- the wicking fiber systems 10, operating in a steady state condition provides for the continuous removal of selected vapors and does not require a pump or other device to move the gas abs. roing liquid.
- the present invention is particularly suited to freshening air of a relatively small area such as the cockpit of an aircraft, interior of an automobile, spacecraft, submarine, building or similar enclosed environment all of which are herein genetically identified as a cabin.
- the disclosed invention PC17US97/10668 78
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)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Filtering Materials (AREA)
- Gas Separation By Absorption (AREA)
- Drying Of Gases (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT97930142T ATE204506T1 (en) | 1996-06-19 | 1997-06-19 | CONTINUOUS SYSTEM FOR CAPTURE AND REMOVAL OF GAS MOLECULES |
JP10503356A JP2000515416A (en) | 1996-06-19 | 1997-06-19 | Continuous gas molecule capture and removal device |
DE69706306T DE69706306T2 (en) | 1996-06-19 | 1997-06-19 | CONTINUOUS SYSTEM FOR CAPTURING AND REMOVING GAS MOLECULES |
CA002259005A CA2259005C (en) | 1996-06-19 | 1997-06-19 | A continuous gas molecule capturing and removal system |
EP97930142A EP0910458B1 (en) | 1996-06-19 | 1997-06-19 | A continuous gas molecule capturing and removal system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/666,853 US5704966A (en) | 1994-12-23 | 1996-06-19 | Method and apparatus for the continuous capturing and removal of gas molecules |
US08/666,853 | 1996-06-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997048478A1 true WO1997048478A1 (en) | 1997-12-24 |
Family
ID=24675765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1997/010668 WO1997048478A1 (en) | 1996-06-19 | 1997-06-19 | A continuous gas molecule capturing and removal system |
Country Status (8)
Country | Link |
---|---|
US (1) | US5704966A (en) |
EP (1) | EP0910458B1 (en) |
JP (1) | JP2000515416A (en) |
KR (1) | KR20000022029A (en) |
AT (1) | ATE204506T1 (en) |
DE (1) | DE69706306T2 (en) |
ES (1) | ES2165072T3 (en) |
WO (1) | WO1997048478A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999019523A1 (en) * | 1997-10-14 | 1999-04-22 | Alliedsignal Inc. | A fibrous system including wicking fibers impregnated with extractant for continuously capturing metals from an aqueous stream |
US7588025B2 (en) | 2005-02-17 | 2009-09-15 | Electrolux Professional Spa | Fume extractor hood |
US10465926B2 (en) | 2014-07-22 | 2019-11-05 | Johnson Controls Technology Company | System and method for continuously removing a particular type of gas molecules from a gas stream |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2138763T3 (en) * | 1994-12-23 | 2000-01-16 | Allied Signal Inc | A FILTRATION DEVICE USING ABSORPTION TO ELIMINATE CONTAMINANTS IN THE GASEOUS PHASE. |
US5891221A (en) * | 1994-12-23 | 1999-04-06 | Alliedsignal Inc. | Chemical reagent package and method of operation effective at removing a wide range of odors |
US5759394A (en) | 1996-11-27 | 1998-06-02 | Alliedsignal Inc. | Elongate fiber filter mechanically securing solid adsorbent particles between adjacent multilobes |
US5951744A (en) * | 1994-12-23 | 1999-09-14 | Alliedsignal Inc. | Multicomponent depth odor control filter and method of manufacture |
US5902384A (en) * | 1994-12-23 | 1999-05-11 | Alliedsignal Inc. | Wicking fiber with solid particulates for a high surface area odor removing filter and method of making |
US6117802A (en) * | 1997-10-29 | 2000-09-12 | Alliedsignal Inc. | Electrically conductive shaped fibers |
GB9917105D0 (en) * | 1999-07-22 | 1999-09-22 | Secr Defence | Filtration system |
US6645447B2 (en) | 1999-10-20 | 2003-11-11 | Honeywell International Inc. | Devices and method for chemical reactive filtration |
US6296821B1 (en) | 1999-10-20 | 2001-10-02 | Allied Signal Inc. | Complex shaped fiber for particle and molecular filtration |
US6422729B1 (en) | 2000-01-27 | 2002-07-23 | Honeywell International Inc. | Method and apparatus for dehydrating a vehicle lamp housing |
US6514306B1 (en) | 2000-01-27 | 2003-02-04 | Honeywell International Inc. | Anti-microbial fibrous media |
US6702879B2 (en) * | 2000-02-03 | 2004-03-09 | Honda Giken Kogyo Kabushiki Kaisha | Air filtering material for air cleaning |
US6555262B1 (en) | 2000-02-08 | 2003-04-29 | Hybrid Power Generation Systems, Llc | Wicking strands for a polymer electrolyte membrane |
MY128157A (en) | 2000-04-20 | 2007-01-31 | Philip Morris Prod | High efficiency cigarette filters having shaped micro cavity fibers impregnated with adsorbent or absorbent materials |
MY138902A (en) * | 2000-04-20 | 2009-08-28 | Philip Morris Prod | "cigarette filters of shaped micro cavity fibers impregnated with flavorant materials" |
US7018531B2 (en) | 2001-05-30 | 2006-03-28 | Honeywell International Inc. | Additive dispensing cartridge for an oil filter, and oil filter incorporating same |
US7182863B2 (en) * | 2000-05-08 | 2007-02-27 | Honeywell International, Inc. | Additive dispersing filter and method of making |
US6432179B1 (en) | 2001-03-30 | 2002-08-13 | Honeywell International Inc. | Vapor-adsorbent filter for reducing evaporative fuel emissions, and method of using same |
US6474312B1 (en) | 2001-10-10 | 2002-11-05 | Honeywell International Inc. | Vapor-adsorbent underhood blanket, system and method of reducing evaporative fuel emissions from a vehicle |
US6887381B2 (en) * | 2001-10-11 | 2005-05-03 | Honeywell International, Inc. | Filter apparatus for removing sulfur-containing compounds from liquid fuels, and methods of using same |
US20030075047A1 (en) * | 2001-10-22 | 2003-04-24 | Normand Bolduc | Bactericidal after-filter device |
US6726751B2 (en) | 2001-11-13 | 2004-04-27 | Daniel E. Bause | Accordion-pleated filter material and filter element incorporating same |
EP1458543A1 (en) * | 2001-11-30 | 2004-09-22 | Philip Morris Products Inc. | Continuous process for impregnating solid adsorbent particles into shaped micro-cavity fibers and fiber filters |
US6919105B2 (en) * | 2003-01-06 | 2005-07-19 | Philip Morris Usa Inc. | Continuous process for retaining solid adsorbent particles on shaped micro-cavity fibers |
US7604685B2 (en) * | 2004-11-22 | 2009-10-20 | Porous Media Corp | Method for the selective extraction of acids |
US7309062B2 (en) * | 2005-08-05 | 2007-12-18 | Wen-Feng Lin | Fixed wet type dehumidification and energy recovery device |
US20110003144A1 (en) * | 2006-11-14 | 2011-01-06 | Philip John Brown | Capillary-channeled polymer fibers modified for defense against chemical and biological contaminants |
US7931817B2 (en) * | 2008-02-15 | 2011-04-26 | Honeywell International Inc. | Additive dispensing device and a thermally activated additive dispensing filter having the additive dispensing device |
US8501644B2 (en) * | 2009-06-02 | 2013-08-06 | Christine W. Cole | Activated protective fabric |
US9623350B2 (en) | 2013-03-01 | 2017-04-18 | Fram Group Ip Llc | Extended-life oil management system and method of using same |
EP2927030B1 (en) * | 2014-04-02 | 2017-10-04 | Volvo Car Corporation | Vehicle ambient air purification arrangement and method, and a vehicle and vehicle fleet comprising such arrangement |
CN108619828A (en) * | 2018-05-23 | 2018-10-09 | 安徽新华印刷股份有限公司 | A kind of printing house's waste gas purification apparatus |
CN113476984B (en) * | 2021-06-03 | 2022-11-08 | 北京戴纳实验科技有限公司 | Waste gas filtering device for laboratory |
CN113952818A (en) * | 2021-10-22 | 2022-01-21 | 骆英 | Paint spraying waste gas treatment device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4900448A (en) * | 1988-03-29 | 1990-02-13 | Honeywell Inc. | Membrane dehumidification |
WO1991009998A1 (en) * | 1989-12-21 | 1991-07-11 | Allied-Signal Inc. | Filaments having trilobal or quadrilobal cross-sections |
US5158581A (en) * | 1991-07-29 | 1992-10-27 | Coplan Myron J | Fluid separation membrane module with hollow fibers having segregated active surface regions |
US5281254A (en) * | 1992-05-22 | 1994-01-25 | United Technologies Corporation | Continuous carbon dioxide and water removal system |
WO1996020097A1 (en) * | 1994-12-23 | 1996-07-04 | Alliedsignal Inc. | A filtration device using absorption for the removal of gas phase contaminants |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2653017A (en) * | 1950-11-07 | 1953-09-22 | Edward K Frost | Cooling attachment for fans |
US3505175A (en) * | 1967-05-19 | 1970-04-07 | Latinvestment Ltd | Liquid purifying apparatus and method |
US4166087A (en) * | 1971-11-22 | 1979-08-28 | Cline-Buckner, Inc. | Automatic intermittent vapor dispenser |
US4098852A (en) * | 1972-07-04 | 1978-07-04 | Rhone-Poulenc, S.A. | Process for carring out a gas/liquid heat-exchange |
US3754377A (en) * | 1972-11-17 | 1973-08-28 | Merichem Co | Gas-liquid mass transfer process |
US3991724A (en) * | 1974-03-01 | 1976-11-16 | Universal Oil Products Company | Apparatus for moisture addition to engine air-fuel input |
US4031180A (en) * | 1976-06-22 | 1977-06-21 | Acme Eng. & Mfg. Corporation | Cooling pad system |
US4300925A (en) * | 1980-07-11 | 1981-11-17 | Nikandrov Gennady A | Gas purifying filter |
US4323373A (en) * | 1981-03-23 | 1982-04-06 | Oxford Air Systems, Inc. | Apparatus and method for cleaning air |
GB8510805D0 (en) * | 1985-04-29 | 1985-06-05 | Penlon Ltd | Vaporizing apparatus |
CA1315668C (en) * | 1986-10-31 | 1993-04-06 | Ewald Wilhelm Simmerlein-Erlbacher | Filter-device and a filter-appliance from such filter-device |
JPH03500923A (en) * | 1988-08-26 | 1991-02-28 | キエフスキ ポリテクニチェスキ インスチテュート イメニ 50‐レティア ヴェリコイ オクチャブルスコイ ソチアリスチチェスコイ レヴォリューツィ | Indirect evaporative gas cooling system |
US5024686A (en) * | 1990-04-20 | 1991-06-18 | Lerner Bernard J | Recycle spray gas-liquid contactor |
US5110325A (en) * | 1990-04-20 | 1992-05-05 | Lerner Bernard J | Recycle spray gas-liquid contactor |
DE4128119A1 (en) * | 1991-08-24 | 1993-02-25 | Bayer Ag | METHOD FOR ABSORBING EXPLOSIVE GASES IN A TUBE EXCHANGE COLUMN |
JP2755053B2 (en) * | 1992-07-29 | 1998-05-20 | 三菱電機株式会社 | Humidifier |
US6093491A (en) * | 1992-11-30 | 2000-07-25 | Basf Corporation | Moisture transport fiber |
US5472613A (en) * | 1993-04-19 | 1995-12-05 | Envirosep Inc. | Removing volatile and non-volatile organic in a thick film equilibrium process and device |
-
1996
- 1996-06-19 US US08/666,853 patent/US5704966A/en not_active Expired - Lifetime
-
1997
- 1997-06-19 ES ES97930142T patent/ES2165072T3/en not_active Expired - Lifetime
- 1997-06-19 AT AT97930142T patent/ATE204506T1/en active
- 1997-06-19 KR KR1019980710427A patent/KR20000022029A/en not_active Application Discontinuation
- 1997-06-19 EP EP97930142A patent/EP0910458B1/en not_active Expired - Lifetime
- 1997-06-19 DE DE69706306T patent/DE69706306T2/en not_active Expired - Lifetime
- 1997-06-19 WO PCT/US1997/010668 patent/WO1997048478A1/en not_active Application Discontinuation
- 1997-06-19 JP JP10503356A patent/JP2000515416A/en not_active Ceased
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4900448A (en) * | 1988-03-29 | 1990-02-13 | Honeywell Inc. | Membrane dehumidification |
WO1991009998A1 (en) * | 1989-12-21 | 1991-07-11 | Allied-Signal Inc. | Filaments having trilobal or quadrilobal cross-sections |
US5057368A (en) * | 1989-12-21 | 1991-10-15 | Allied-Signal | Filaments having trilobal or quadrilobal cross-sections |
US5158581A (en) * | 1991-07-29 | 1992-10-27 | Coplan Myron J | Fluid separation membrane module with hollow fibers having segregated active surface regions |
US5281254A (en) * | 1992-05-22 | 1994-01-25 | United Technologies Corporation | Continuous carbon dioxide and water removal system |
WO1996020097A1 (en) * | 1994-12-23 | 1996-07-04 | Alliedsignal Inc. | A filtration device using absorption for the removal of gas phase contaminants |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6656360B2 (en) | 1994-12-23 | 2003-12-02 | Alliedsignal Inc. | Fibrous system for continuously capturing metals from an aqueous stream |
WO1999019523A1 (en) * | 1997-10-14 | 1999-04-22 | Alliedsignal Inc. | A fibrous system including wicking fibers impregnated with extractant for continuously capturing metals from an aqueous stream |
US7588025B2 (en) | 2005-02-17 | 2009-09-15 | Electrolux Professional Spa | Fume extractor hood |
US10465926B2 (en) | 2014-07-22 | 2019-11-05 | Johnson Controls Technology Company | System and method for continuously removing a particular type of gas molecules from a gas stream |
US11326791B2 (en) | 2014-07-22 | 2022-05-10 | Johnson Controls Tyco IP Holdings LLP | System and method for continuously removing a particular type of gas molecules from a gas stream |
Also Published As
Publication number | Publication date |
---|---|
DE69706306T2 (en) | 2002-05-16 |
EP0910458A1 (en) | 1999-04-28 |
EP0910458B1 (en) | 2001-08-22 |
ATE204506T1 (en) | 2001-09-15 |
ES2165072T3 (en) | 2002-03-01 |
US5704966A (en) | 1998-01-06 |
JP2000515416A (en) | 2000-11-21 |
KR20000022029A (en) | 2000-04-25 |
DE69706306D1 (en) | 2001-09-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5704966A (en) | Method and apparatus for the continuous capturing and removal of gas molecules | |
US5902384A (en) | Wicking fiber with solid particulates for a high surface area odor removing filter and method of making | |
US5951744A (en) | Multicomponent depth odor control filter and method of manufacture | |
US6004381A (en) | Filtration device and method using absorption for the removal of gas phase contaminants | |
KR100495733B1 (en) | A filter having hollow fibers impregnated with solid adsorbent particles | |
US5938523A (en) | Device for removing the noxious and aromatic substances from an air flow fed into the interior of a vehicle | |
DE60214197T2 (en) | ADSORPTION ELEMENT AND METHOD | |
CN106762268A (en) | Fuel tank inerting pre-flock device assembly, device and application method | |
EP0941375A1 (en) | Hollow fibers impregnated with solid particles | |
JPH0920133A (en) | Equipment and method of treating air flow fed into chamber | |
EP1214131A1 (en) | Filter elements and filtering methods | |
KR20180102006A (en) | Air intake system for mobile device | |
CA2259005C (en) | A continuous gas molecule capturing and removal system | |
EP1279435A1 (en) | A filter and a method for making a filter | |
US7150778B1 (en) | Recirculation jacket filter system | |
CA2203662C (en) | A filtration device using absorption for the removal of gas phase contaminants | |
DE10019695A1 (en) | Apparatus for continuous separation of fluid mixtures, e.g. oxygen and nitrogen, n- and iso-isomers of hydrocarbons or organic substances or azeotropes, has membrane system of separating layer on sorbent part | |
JPH10512800A (en) | Filtration equipment using absorption to remove gas phase contaminants. | |
WO1995019828A1 (en) | Air filtering | |
KR102392478B1 (en) | Ascon system with improved efficiency of collecting and removing harmful air pollutants | |
EP1251921A2 (en) | Phase separator | |
JP3831281B2 (en) | Air filter medium and air filter unit manufacturing method | |
KR20240065889A (en) | Cycling air purification apparatus | |
KR20230038244A (en) | organic solvent recovery system | |
KR200328365Y1 (en) | Filter assembly capable of increasing efficiency |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CA JP KR |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1997930142 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1019980710427 Country of ref document: KR |
|
ENP | Entry into the national phase |
Ref document number: 2259005 Country of ref document: CA Ref country code: CA Ref document number: 2259005 Kind code of ref document: A Format of ref document f/p: F |
|
WWP | Wipo information: published in national office |
Ref document number: 1997930142 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1019980710427 Country of ref document: KR |
|
WWG | Wipo information: grant in national office |
Ref document number: 1997930142 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1019980710427 Country of ref document: KR |