WO2003082443A1 - Apparatus for separating gas into gas components using ionization - Google Patents
Apparatus for separating gas into gas components using ionization Download PDFInfo
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- WO2003082443A1 WO2003082443A1 PCT/JP2003/003730 JP0303730W WO03082443A1 WO 2003082443 A1 WO2003082443 A1 WO 2003082443A1 JP 0303730 W JP0303730 W JP 0303730W WO 03082443 A1 WO03082443 A1 WO 03082443A1
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- gas
- flow
- flow channel
- separation
- outlet ports
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Classifications
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- 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
- B01D53/32—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 electrical effects other than those provided for in group B01D61/00
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- 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
- B01D53/32—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 electrical effects other than those provided for in group B01D61/00
- B01D53/323—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 electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
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- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/30—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ionisation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/104—Oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7027—Aromatic hydrocarbons
Definitions
- the present invention relates to an apparatus for ionizing an inlet gas and separating the gas into gas components, particularly to a gas ionization/separation apparatus suitable for use as a gas separation apparatus which separate a gas into a purified gas component and other components for use in a process of performing fine processing in a range of a nanometer to micrometer or as an cleaning apparatus for removing a trace amount of molecular components from air.
- adsorption refining method As a gas refining method that can be applied to many types of gases, there is an adsorption refining method of adsorbing the gas with an adsorbent.
- impurities in the gas can be adsorbed at a normal temperature.
- the adsorbent adsorbing the impurities can reactivated by treatments such as heating and reproduce adsorbability.
- the gas is continuously refined, it is necessary to prepare two or more adsorption columns and alternately operate them in adsorption/desorption mode.
- a gas purifying method of a rare gas such as argon and helium or a hydrogen gas
- a getter refining method As a gas purifying method of a rare gas such as argon and helium or a hydrogen gas.
- the getter refining method it is necessary to react a getter material with the impurities in the gas at the high temperature. Therefore, the getter refining method requires much energy. The getter material that has once reacted with the impurities cannot be reproduced, and is disadvantageously discarded.
- Jpn. Pat. Appln. KOKAI Publication No. 2001-70743 the present applicant has proposed a method of continuously purifying the gas with low energy.
- the method comprises: separating the gas into positive and negative ions by an electrical field to purify the gas.
- This proposed apparatus includes a structure in which parallel plate electrodes with gas outlets are disposed on opposite sides of a chamber to form two branching-flows.
- a flow branch section is the same as an ion separation region, and the ionized impurities are separated in a minimum ion- migration distance by the electrical field.
- the apparatus is superior in refining the gas having a higher purity.
- a stagnant region exits in the vicinities of corners of the chamber. Therefore, with a high flow rate, an introduced gas is not smoothly exhausted, and the separation efficiency of impurities changes with the gas flow rate.
- the separation it is necessary to secure a retention time until the impurities are effectively ionized.
- a short-cut flow of the gas introduced in the separation chamber to the outlet is inevitable.
- a separation flow volume needs to be divided into equal volumes. Therefore, a flow meter and valve have to be disposed at the outlet so that the volume is adjusted into the equal volumes.
- the flowmeter cannot be disposed in an inlet of the gas flow or outlets of the branched gases in some case.
- the flowmeter cannot be disposed, there is a problem that the flow volume cannot be adjusted.
- a separation voltage to be applied has an optimum value which is determined in accordance with the flow rate of the gas, electrical mobility of the ion, and generation and depletion rates of the ion.
- the electrical mobility and generation/depletion rate of the ion vary with a pressure or temperature of the gas. Therefore, there is a problem that separation efficiency is influenced depending on a state of pressure or temperature.
- An object of the present invention is to provide an apparatus for ionizing and separating a gas component in an inlet gas, which is low in energy and high in efficiency.
- an apparatus for ionizing and separating a gas into gas components in an inlet gas comprising: a chamber structure configured to defining a flowing channel, which has an inlet port and first and second outlet ports; an ionizer for ionizing gas components in the gas flowing into the flow channel via the inlet port; means for applying an electrical field to the ionized gas components in the flow channel to separate the gas components into a cation and anion, thereby separating a gas molecule component contained in the gas; means for extracting one of the gas component from the first outlet port, and extracts the another of the gas component from the second outlet port: and control means for controlling a flow of the inlet gas from the inlet port and retaining the gas in the flow channel for a predetermined time period and more.
- FIG. 1 is a perspective view schematically showing a two-branching-flow gas ionization/separation apparatus according to one embodiment of the present invention
- FIG. 2 is a cross-sectional view schematically showing an ionizer shown in FIG. 1;
- FIG. 3 is a typical characteristic diagram showing one example of an experiment result obtained by separating a trace amount of oxygen in a high-purity nitrogen gas in a separation apparatus shown in FIG. 1;
- FIG. 4 is an explanatory view showing ionization potential and proton affinity of nitrogen, oxygen, and toluene;
- FIG. 5 is a cross-sectional view schematically showing a separation electrode shown in FIG. 1;
- FIG. 6 is a cross-sectional view schematically showing the gas ionization/separation apparatus according to another embodiment of the present invention.
- FIG. 7 is a characteristic diagram showing one example of a result obtained by separating toluene of an organic material by the gas ionization/separation apparatus shown in FIG. 6;
- FIG. 8 is a characteristic diagram showing a separation efficiency in the gas ionization/separation apparatus according to the embodiment of the present invention together with a related-art separation efficiency comparative example;
- FIG. 9 is a cross-sectional view showing a differential pressure detecting method in adjusting a gas flow volume according to the embodiment of the present invention.
- FIG. 10 is a characteristic diagram showing a relation between flow volumes of opposite outlets and pressure difference according to the embodiment of the present invention.
- FIG. 11 is an explanatory view showing an arrangement use example of the gas ionization/ separation apparatus according to the embodiment of the present invention.
- FIG. 12 is a cross-sectional view showing the gas ionization/separation apparatus including a pressure measurement portion which measures the pressure of the gas according to the embodiment of the present invention.
- FIG. 13 is a characteristic diagram showing one example of a result obtained by solving an advective diffusion equation with respect to an molecular component and ion to calculate a separation efficiency in ionizing and electrostatically separating the molecular component in a two-branching-flow field according to the embodiment of the present invention.
- Best Mode for Carrying Out the Invention A gas ionization/separation apparatus according to an embodiment of the present invention will be described hereinafter in detail with reference to the drawings .
- FIG. 1 shows a gas ionization/separation apparatus of two-branching-flow type according to an embodiment of the present invention.
- generation of an ion and separation of the ion by an electrical field are simultaneously performed, and electrodes for applying the electrical field has a configuration to serve as a gas outlet port.
- reference numeral 11 denotes an inlet port of gas mixture, for example a mixture of air and gas, via which the gas mixture flows into the apparatus, 12, 13 denote gas outlet ports, via which the separated gas component flows out, and 14 denotes a separation chamber in which a flow channel is defined.
- an ionizer 15 is disposed to ionize the gas components in the flow channel.
- Separation electrodes 16, 17 having a structure detachable from the chamber 14 close the chamber 14, and the outlet ports 12, 13 for outputting the gas components are disposed in the separation electrodes 16, 17.
- the chamber 14 has a porous electrode 18 and glass fiber filter 19 (flow resisting part) formed of porous member in such a manner that the gas component flowing toward the outlet ports 12, 13 pass through the member.
- separation electrodes 16, 17, and porous electrode 18 are formed of metals such as SUS .
- an annular strip-shaped portion including portions connected to the inlet port 11 and ionizer 15 is formed of metals such as SUS, and the other portions are formed of insulating materials such as quartz glass.
- the separation chamber 14 is formed in a cylindrical shape, which has an inner diameter of 40 mm, and is provided with a cylindrical flow channel, and disposed substantially horizontally in an axial direction.
- the separation electrodes 16, 17 are disposed substantially in parallel with and opposite to each other so as to close the openings of the separation chamber 14.
- the first outlet port 12 formed in a cylindrical shape with an inner diameter of 6.2 mm is disposed.
- the second outlet port 13 formed in the cylindrical shape with an inner diameter of 6.2 mm is disposed.
- the inlet port 11 formed in the cylindrical shape having an inner diameter of 6.2 mm is disposed to supply the gas in a peripheral direction of the inner surface of the separation chamber 14 and generate a circular flow.
- the glass fiber filters (flow resisting parts) 19, 19 are disposed to obstruct the cylindrical flow channel.
- the porous electrodes 18, 18 are disposed to obstruct the cylindrical flow channel.
- the porous electrodes 18, 18 are disposed opposite to each other at an interval of 50 mm and substantially in parallel with each other.
- the ionizer 15 is disposed between the porous electrodes 18, 18 in the separation chamber 14.
- the separation electrodes 16, 17 are connected to a direct-current voltage supply 25 so that the electrode 16 is an anode and the electrode 17 is a cathode.
- the gas components flow to the outlet ports 12, 13 from the inlet port 11 as follows. That is, the gas introduced into the separation chamber 14 flows along a cylindrical flow channel inner surface from a tangential (peripheral) direction.
- the respective gas outlet ports 12, 13 include two types of electrodes charged in the same polarity. That is, the outlet port 12, the electrode 16 and the porous electrode 18, which are located at the side of the outlet port 12, are charged in one polarity, and the outlet port 13, the electrode 17 and the porous electrode 18, which are located at the side of the outlet port 13, are charged in the other polarity.
- the porous electrode 18 and glass fiber filter (flow resisting part) 19 having a high pressure loss are disposed in series with each other.
- the gas introduced into the flow channel in the separation chamber 14 passes through the porous electrode 18, and glass fiber filter (flow resisting part) 19 and flows out via the gas outlet port 12 (13) . That is, the gas, which is introduced into the flow channel from the side surface middle portion of the cylindrical chamber 14 having an inner diameter of 40 mm, are branched towards two outlet ports 12, 13 disposed opposite to each other and exhausted to the outside of the apparatus via the respective outlets.
- the gas is introduced into the separation chamber 14 from the gas inlet port 11, soft X-rays are irradiated to the gas from the ionizer 15 fixed to the separation chamber 14, and the gas components are ionized in the separation chamber 14.
- Certain molecular gas components which are regarded as impurity components, are charged as the cations by ion- molecule reaction.
- the introduced gas is controlled so that the gas flows in along the flow channel inner surface of the cylindrical separation chamber 14 from the tangential (peripheral) direction and the flowing gas forms the circular stream in the flow channel . This circular flow prevents the gas flow from forming a short-cut gas stream flowing toward the outlet ports 12, 13 from the inlet port 11.
- a soft X-ray irradiation time lengthens with respect to the gas, and the molecular components can sufficiently be ionized.
- a direct-current voltage is applied to dispose one outlet port 12 on an anode side and the other outlet port 13 on a cathode side.
- An electrical field is formed in the flow channel.
- the molecular components ionized as the cations move to the outlet port 13 on the cathode side.
- a high-purity gas component is separated from the gas and is taken from the outlet port 12 on the anode side.
- FIG. 2 is a cross-sectional view of FIG. 1.
- the ionizer 15 has a structure in which a soft X-ray tube 20 is located in a metal vessel such as SUS vessel connected to the ground. For example, the ionizer 15 is fixed to a side surface portion of the separation chamber 14 with a screw 21 from the outside.
- the soft X-ray tube 20 is applied with a high voltage and is controlled by a soft X-ray control apparatus (not shown) , and the soft X-ray tube 20 emits the soft X-rays into the flow channel of the separation chamber 14.
- reference numeral 22 denotes an insulating material such as a fluorocarbon resin.
- the gas inlet port 11 is devised to allow the gas to flow in along the flow channel inner surface of the separation chamber 14 having the cylindrical shape from the tangential direction, so that the flow stream of the gas introduced into the separation chamber 14 forms a circular flow 10 inside the cylindrical flow channel.
- the gas introduced into the separation chamber 14 flows along the inner surface of the cylindrical flow channel, and can be irradiated with a sufficient amount of soft X-rays.
- FIG. 3 is a characteristic diagram showing one example of an experiment result obtained by separating a trace amount of oxygen in a high-purity nitrogen gas in a separation apparatus shown in FIG. 1.
- the abscissa indicates electrical field strength
- the ordinate indicates the flux of separated oxygen molecules with respect to the flux of inflow oxygen molecules via the inlet, which is separation efficiency.
- FIG. 3 shows a result of trace oxygen separation from nitrogen gas with inlet concentrations of 7 ppb, 28 ppb, 43 ppb at an inlet flow rate of 1 L/min.
- the separation efficiency of oxygen increases with a lower concentration. With 7 ppb of oxygen at electrical field strength of 2 kV/m, a maximum separation efficiency of 60% obtained.
- ionization energy is requested to be smaller than that of a carrier gas molecule.
- proton affinity is requested to be larger than that of the carrier gas molecule.
- FIG. 4 shows ionization potential and proton affinity of nitrogen, oxygen, and toluene.
- nitrogen and oxygen oxygen has a smaller ionization potential and is more easily charged, but a difference of proton affinity is small as compared with organic materials such as toluene, and separation effect is low.
- FIG. 5 shows the structure of the separation electrode disposed in the outlet port.
- the separation electrodes 16, 17 are constituted of hollow electrode portions 6A, 6B formed of metals.
- the glass fiber filter (flow resisting part) 19 is held between the electrode portions 6A, 6B via 0 rings 24, and both the electrode portions are fixed with screws 23.
- the separation electrodes 16, 17 are connected to the cylindrical separation chamber 14 via gastight fixing members such as 0 rings 44.
- the glass fiber filter 19 may be a micro glass fiber such as a HEPA filter, and any material may be used as long as the material has a fluid resistance uniformly dispersed in the whole flow channel.
- the glass fiber filter (flow resisting part) 19 has a micro structure, contaminant such as particles are easily deposited, but the filter can easily be changed because of the disconnectable structure of the electrode portions 6A, 6B.
- the metal porous electrode 18 is attached to the front surface of the electrode portion 6A, that is, an upstream-side end, and the outer surface of the electrode portion 6A is connected to the direct-current (DC) voltage supply 25. Therefore, not only the separation electrodes 16, 17 but also the porous electrode 18 can simultaneously be charged.
- both the porous electrode 18 and electrode portion 6A are formed of the metals, and attached so as to be integrally molded or united, and thereby the voltage can be applied to the porous electrode 18 by connecting the wire to the electrode portion 6A from the outside.
- a fine metal mesh may be used, and any shape or material may be used as long as the electrical fields can be formed in parallel with one another in the separation chamber 14 and the gas can uniformly be exhausted.
- FIG. 6 is a cross-sectional view showing the gas ionization/separation apparatus according to another embodiment of the present invention.
- a radioactive isotope 241 ⁇ f ⁇ xe to the cylindrical flow channel inner surface is used as an ion source.
- a radioactive isotope 241 ⁇ f ⁇ xe to the cylindrical flow channel inner surface is used as an ion source.
- a cylindrical gas inlet port 26 is disposed to open the chamber 14 to the outside.
- a radiation source 27 such as the radioactive isotope 241 7- ⁇ i s disposed opposite to the gas inlet port 26 and fixed with an epoxy resin 28.
- the trace gas component can steadily be ionized and separated.
- the direct-current power supplies 31, 32 by cooperating changeover switches 29, 30, can change the polarities of the electrodes 16, 17. Thereby, a clean air or separated gas can arbitrarily be taken out via either outlet port 12 or 13.
- an ion generation amount in the flow channel can further be increased.
- other ionizer such as an electrical discharge unit can be used alone or combined as the ion source of the present apparatus, as long as the ion can be generated.
- FIG. 7 is a characteristic diagram showing one example of a result obtained by separating toluene of the organic compound by the gas ionization/separation apparatus of FIG. 6.
- the ordinate indicates a toluene flux with respect to an inflow toluene flux via the inlet, which is the separation efficiency
- the abscissa indicates each separation voltage.
- Toluene was separated with inlet volume concentrations of 90 ppb, 190 ppb, 230 ppb.
- the separation efficiency of toluene rises, and the separation efficiency slightly drops with a voltage of 600 V or more. With a lower concentration, the separation efficiency rises.
- FIG. 8 shows an experimental result obtained by comparing the separation effect of a method using a plate electrode in the electrode of an outlet member in a gas separation apparatus using two branching-flows in the separation chamber according to Jpn. Pat. Appln. KOKAI Publication No. 2001-070743, with that of the method of the gas ionization/separation of FIG. 6.
- a toluene having a concentration of 0.23 ppm in the nitrogen carrier gas nitrogen was used as a sample to be introduced into the gas inlet port.
- the ordinate indicates the separated toluene flux to the inflow toluene flux via the inlet as the separation efficiency
- the abscissa indicates each separation voltage. It is seen that toluene is hardly separated in any voltage with a flow rate of 2 L/min in the method using the related-art plate electrode. This is because a stagnant region exist in the chamber corner, influence of disturbance of the flow becomes remarkable with a large flow volume, and toluene cannot effectively be separated.
- the separation electrodes 16, 17 and porous electrodes 18, 18 are used as the electrodes in the outlet ports 12, 13 of FIG. 6, and the glass fiber filters (flow resisting parts) 19 are further disposed, the separation of toluene occurs with the separation voltage. At 600 V, 0.23 ppm of toluene can be separated by 24% at maximum. From this, it is seen that the separation efficiency rises in any separation voltage with the improved structure of the separation electrodes 16, 17 shown in FIG. 5.
- FIG. 9 shows the gas ionization/separation apparatus in which a gas pressure difference between both the outlet ports is detected by a differential pressure gauge to adjust an outlet flow volume.
- the flow volume of the gas ionization/ separation apparatus can be controlled to obtain a predetermined flow volume. This contributes reduction of an apparatus cost and stabilization of control.
- the holes 33 for the differential pressure measurement may be disposed on either upstream or downstream side of the glass fiber filter (flow resisting part) 19, and need to be opened in left and right positions. The values of the flow volume and pressure need to be calibrated beforehand for use. FIG.
- FIG. 10 shows a result obtained by making the holes 33 each having a diameter of 0.6 mm vertically in the gas pipes (inner diameter of 6 mm) 34 of opposite outlets and checking a relation between a statistic pressure difference and flow volume ratio in the gas pipes 34 of the respective outlets.
- the abscissa indicates a ratio of a flow volume Coutl of one outlet 12 with respect to a flow volume Cin of an inlet 26, and the ordinate indicates a result of measurement of a static pressure difference ⁇ P. It is seen from FIG. 10 that the difference between the outlet flow volumes can be obtained with the static difference ⁇ P. This is the result of the measurement of the static pressure difference, but a dynamic pressure difference or whole pressure difference may also be measured.
- FIG. 10 shows a result obtained by making the holes 33 each having a diameter of 0.6 mm vertically in the gas pipes (inner diameter of 6 mm) 34 of opposite outlets and checking a relation between a statistic pressure difference and flow volume ratio in the gas pipes 34 of the respective outlets.
- FIG. 11 shows a example in which a large number of gas ionization/separation apparatuses according to the embodiment of the present invention are used in one parallel stage and one series stage.
- the apparatuses are arranged in parallel with each other, it is possible to treat the inlet gas with a large flow volume which cannot be compensated with one apparatus.
- the present apparatuses are disposed in series with each other, a high-efficiency separated gas can be refined. This cannot be achieved with one apparatus.
- FIG. 12 shows the gas ionization/separation apparatus including a pressure measurement portion which measures the pressure of the gas and temperature measurement portion which measures the temperature of the gas according to the embodiment of the present invention.
- the holes (diameter of 0.6 mm) are made in the separation electrodes 16, 17 of the outlet ports 12, 13 until the holes 33 reach the gas pipes (inner diameter of 6 mm) 34.
- the pressure of the fluid is measured with a pressure gauge 37, and the temperature is measured with a temperature meter 38.
- the outlet port 13 includes a flow volume adjustment valve 39.
- a variable resistor 41 is attached as voltage adjustment means in series with a direct-current voltage supply 40.
- the variable resistor 41 is adjusted, a larger separation voltage is applied, and thereby the separation efficiency can be prevented from dropping.
- the hole 33 to which the pressure gauge 37 or temperature meter 38 is to be attached may be disposed in any position of the apparatus flow channel.
- the holes may also be made in the flow channel outside the apparatus, as long as the pressure or temperature meter in the apparatus is measured/known. Furthermore, the same hole may be used to dispose the pressure gauge and temperature meters in the same position.
- FIG. 13 is a characteristic diagram showing one example of a result obtained by solving an a convective diffusion equation with respect to the molecular component and ion to calculate the separation efficiency in ionizing and electrical migration of trace gas component in a two-branching-flow field.
- the generation of the toluene ion is defined as a first order reaction in proportion to the concentration of toluene molecules and the depletion of the toluene ion is defined as the first order reaction in proportion to the concentration of toluene ions to perform the calculation.
- Z denotes an electrical mobility of the ion
- u denotes a flow velocity of the gas
- ⁇ denotes a depletion rate constant of the ion
- ⁇ denotes a generation rate constant of the ion.
- the flow channel in the separation chamber is not limited to the cylindrical channel.
- the flow channel is molded in a tubular shape so as to form the circular flow by the inlet gas inside the channel, a sufficient gas retention time can be secured, and it is possible to effectively generate the ion in the flow channel.
- means for retaining the gas in the flow channel for a predetermined or more time is not limited to a method of forming the circular flow.
- a method of disposing controlling means such as a baffle plate and guide member in the flow channel and allowing the inlet gas to meander in the flow channel may also be used.
- the gas does not necessarily have to be introduced along the flow channel inner surface from the tangential direction.
- the direct-current voltage supply for forming the electrical field may be of any type such as a type for applying a positive and/or negative voltage, as .long as a predetermined voltage can be applied.
- the voltage, temperature, or pressure may manually or automatically be controlled.
- the stagnation portion of the flow is eliminated.
- a high- pressure loss member HEPA filter
- the porous member porous electrode
- the gas which has entered the separation chamber is rectified so as to flow along the whole chamber.
- the circular flow is formed in the chamber in order to secure the retention time of the gas introduced into the chamber, the retention time for ionizing and separating the ion can be secured. Therefore, there can be provided the gas ionization/separation apparatus, which is high in efficiency and low in energy.
- the differential pressure when the differential pressure is measured from the static pressure of the gas in each outlet, without measuring the outlet flow volume, the differential pressure can be adjusted, and the flow volume can also be adjusted.
- the polarity of the electrode is changed, the separated gas can be taken out via either outlet.
Abstract
Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US10/509,450 US20050178270A1 (en) | 2002-03-28 | 2003-03-26 | Apparatus for separating gas into gas components using ionization |
EP03745423A EP1487564A1 (en) | 2002-03-28 | 2003-03-26 | Apparatus for separating gas into gas components using ionization |
KR10-2004-7015553A KR20040111459A (en) | 2002-03-28 | 2003-03-26 | Apparatus for separating gas into gas components using ionization |
Applications Claiming Priority (4)
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JPNO.2002-093122 | 2002-03-28 | ||
JP2002093122 | 2002-03-28 | ||
JP2002258991A JP3708917B2 (en) | 2002-03-28 | 2002-09-04 | Gas ionization separation and purification equipment |
JPNO.2002-258991 | 2002-09-04 |
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WO2003082443A1 true WO2003082443A1 (en) | 2003-10-09 |
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US (1) | US20050178270A1 (en) |
EP (1) | EP1487564A1 (en) |
JP (1) | JP3708917B2 (en) |
KR (1) | KR20040111459A (en) |
CN (1) | CN1642619A (en) |
TW (1) | TW200305455A (en) |
WO (1) | WO2003082443A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1673154A2 (en) * | 2003-10-06 | 2006-06-28 | Parsa Investments, L.P. | Multi-sectional system for continuous gas separation |
US7318858B2 (en) | 2002-07-12 | 2008-01-15 | Parsa Investment, L.P. | Gas separator for providing an oxygen-enriched stream |
WO2012145407A2 (en) * | 2011-04-20 | 2012-10-26 | Lehigh University | Supercapacitive swing adsorption |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US6585809B1 (en) * | 2002-07-12 | 2003-07-01 | Komad Parsa | Continuous gas separation in an open system |
US20090139497A1 (en) * | 2007-11-30 | 2009-06-04 | Bo Shi | Engine having thin film oxygen separation system |
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JP6103312B2 (en) * | 2013-11-06 | 2017-03-29 | パナソニックIpマネジメント株式会社 | Solvent separation method and apparatus |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3154682A (en) * | 1960-07-21 | 1964-10-27 | Mine Safety Appliances Co | Removal of contaminants from gases |
JPH0422416A (en) * | 1990-05-18 | 1992-01-27 | Ebara Corp | Method for decomposing and removing carbon monoxide or carbon dioxide and removing equipment |
JPH09248417A (en) * | 1996-03-15 | 1997-09-22 | Nippon A P I:Kk | Method and apparatus for gas purification |
US5961693A (en) * | 1997-04-10 | 1999-10-05 | Electric Power Research Institute, Incorporated | Electrostatic separator for separating solid particles from a gas stream |
JP2001070743A (en) * | 1999-09-01 | 2001-03-21 | Dai-Dan Co Ltd | Gas separation apparatus |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6585809B1 (en) * | 2002-07-12 | 2003-07-01 | Komad Parsa | Continuous gas separation in an open system |
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2002
- 2002-09-04 JP JP2002258991A patent/JP3708917B2/en not_active Expired - Fee Related
-
2003
- 2003-03-26 US US10/509,450 patent/US20050178270A1/en not_active Abandoned
- 2003-03-26 KR KR10-2004-7015553A patent/KR20040111459A/en not_active Application Discontinuation
- 2003-03-26 CN CNA038072386A patent/CN1642619A/en active Pending
- 2003-03-26 WO PCT/JP2003/003730 patent/WO2003082443A1/en not_active Application Discontinuation
- 2003-03-26 EP EP03745423A patent/EP1487564A1/en not_active Withdrawn
- 2003-03-27 TW TW092107005A patent/TW200305455A/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3154682A (en) * | 1960-07-21 | 1964-10-27 | Mine Safety Appliances Co | Removal of contaminants from gases |
JPH0422416A (en) * | 1990-05-18 | 1992-01-27 | Ebara Corp | Method for decomposing and removing carbon monoxide or carbon dioxide and removing equipment |
JPH09248417A (en) * | 1996-03-15 | 1997-09-22 | Nippon A P I:Kk | Method and apparatus for gas purification |
US5961693A (en) * | 1997-04-10 | 1999-10-05 | Electric Power Research Institute, Incorporated | Electrostatic separator for separating solid particles from a gas stream |
JP2001070743A (en) * | 1999-09-01 | 2001-03-21 | Dai-Dan Co Ltd | Gas separation apparatus |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 016, no. 180 (C - 0935) 30 April 1992 (1992-04-30) * |
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 01 30 January 1998 (1998-01-30) * |
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 20 10 July 2001 (2001-07-10) * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7252810B2 (en) | 2002-07-12 | 2007-08-07 | Parsa Investments, L.P. | Multi-sectional system for continuous gas separation |
US7318858B2 (en) | 2002-07-12 | 2008-01-15 | Parsa Investment, L.P. | Gas separator for providing an oxygen-enriched stream |
EP1673154A2 (en) * | 2003-10-06 | 2006-06-28 | Parsa Investments, L.P. | Multi-sectional system for continuous gas separation |
WO2005042128A3 (en) * | 2003-10-06 | 2007-02-01 | Parsa Investments L P | Multi-sectional system for continuous gas separation |
EP1673154A4 (en) * | 2003-10-06 | 2007-11-28 | Parsa Investments L P | Multi-sectional system for continuous gas separation |
WO2012145407A2 (en) * | 2011-04-20 | 2012-10-26 | Lehigh University | Supercapacitive swing adsorption |
WO2012145407A3 (en) * | 2011-04-20 | 2013-02-28 | Lehigh University | Supercapacitive swing adsorption |
Also Published As
Publication number | Publication date |
---|---|
TW200305455A (en) | 2003-11-01 |
KR20040111459A (en) | 2004-12-31 |
EP1487564A1 (en) | 2004-12-22 |
JP2004000884A (en) | 2004-01-08 |
CN1642619A (en) | 2005-07-20 |
JP3708917B2 (en) | 2005-10-19 |
US20050178270A1 (en) | 2005-08-18 |
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