WO2004000434A1 - 溶存気体の分離方法及び分離装置 - Google Patents
溶存気体の分離方法及び分離装置 Download PDFInfo
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- WO2004000434A1 WO2004000434A1 PCT/JP2003/007793 JP0307793W WO2004000434A1 WO 2004000434 A1 WO2004000434 A1 WO 2004000434A1 JP 0307793 W JP0307793 W JP 0307793W WO 2004000434 A1 WO2004000434 A1 WO 2004000434A1
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- WO
- WIPO (PCT)
- Prior art keywords
- gas
- liquid sample
- dissolved gas
- microbubbles
- dissolved
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0005—Degasification of liquids with one or more auxiliary substances
Definitions
- the present invention relates to a method and an apparatus for separating dissolved gas for efficiently extracting and separating gas dissolved in a liquid sample.
- Non-heat sterilization of liquid foods using pressurized carbon dioxide has high potential as a next-generation technology, and in recent years, active research has been conducted mainly in Japan, the United States, Spain, and Turkey. I have.
- the inventors of the present invention supply supercritical (71 atm, 31 ° C or more) or subcritical (60 to 70 atm, 25 ° C or more) carbon dioxide into liquid food by converting them into microbubbles.
- supercritical 71 atm, 31 ° C or more
- subcritical 60 to 70 atm, 25 ° C or more
- the sample treated by the above method contains carbon dioxide in a concentration that can be easily sensed by humans even after the atmospheric pressure is released. For this reason, before the above technology is put to practical use, it is necessary to remove the carbon dioxide remaining in the product to a level that cannot be detected by humans before filling the product with the container.
- a method of heat-treating a liquid food for example, a method of heat-treating a liquid food, a method of reducing the pressure, a method of ultrasonic treatment, a method of combining two or more of these methods, or a method of flowing a dissolved gas dissolved in a liquid food into a thin film Separation methods have been developed using a method, spraying method, and centrifugal atomization method ("Overview of Food Technology", Hisaya Horiuchi and Katsumi Takano, Koseisei Koseikaku, "Food Processing Method", Junichi Ozaki, Asakura Shoten).
- An object of the present invention is to provide a dissolved gas separation apparatus capable of efficiently degassing a dissolved gas while suppressing the degradation of the sample and preventing the quality of the sample from deteriorating due to oxygen or the like.
- the present invention is specified by the following items [1] to [11].
- a method for separating dissolved gases comprising:
- a continuous separation method for a dissolved gas comprising: a step of separating microbubbles from which a dissolved gas has been extracted and a liquid sample into a liquid layer and a gas layer.
- FIG. 1 shows a dissolved gas separation device according to Embodiment 1 of the present invention.
- FIG. 2 shows a dissolved gas separation device according to Embodiment 2 of the present invention.
- FIG. 3 shows a device for separating dissolved gases according to Embodiment 3 of the present invention.
- FIG. 4 shows a dissolved gas separation device according to Embodiment 4 of the present invention.
- 5 is a continuous apparatus for separating dissolved gases according to Embodiment 5 of the present invention.
- ⁇ FIG. 6 is a graph showing the relationship between the removal rate of dissolved carbon dioxide and the amount of nitrogen gas flow.
- Figure 7 shows the removal rate of dissolved carbon dioxide by the conventional method. It is a graph shown.
- FIG. 8 is a graph showing the relationship between the residual rate of the fragrance component and the nitrogen gas flow rate.
- FIG. 9 is a graph showing the relationship between the residual ratio of the aroma component and the processing temperature.
- 1, 1a, lb, 1c and 1d are devices for separating dissolved gases
- 2, 2a, 2b, 2c and 2d are treatment tanks
- 3, 3a, 3b, 3c and 3d are liquid samples
- 4, 4a, 4b, 4c and 4d are compression cylinders
- 5, 5a, 5b, 5 And 5 (1 is a filter
- 6, 6a, 6b, 6 (: and 6001 are microbubbles
- 7, 7a, 7b, and 7c are thermal jackets
- 8, 8a, 8b and 8c are regulating valves
- 9a, 9b and 9c are partition walls
- 10b and 10c are stirring blades
- lid is DESCRIPTION OF THE PREFERRED EMBODIMENTS
- Embodiment 1 is a gas-liquid separation tank
- 1 2 d is a pipe.
- liquid sample in the present invention examples include various drinks such as vegetable juice, fruit juice, coffee, black tea, green tea, oolong tea, cocoa, etc., various drinks added with sweeteners such as sugar, milk, cream, and other additives. , Milk, processed milk, fermented milk, dairy drinks, wine, sake, mentsuyu, mirin, vinegar, and tonic drinks, but are not limited to these.
- the dissolved gas in the present invention includes, but is not limited to, carbon dioxide, oxygen and the like.
- inert gas used in the present invention other than nitrogen, argon, helium, and the like can be used as long as they are safe without toxicity and inert to the liquid sample.
- the inert gas generating means used in the present invention includes a compression cylinder (high pressure storage tank). Liquefaction tanks and those obtained by separating nitrogen in the atmosphere at the site, etc., but are not limited to these.
- PSA method Pressure swing adsorption method
- PSA method Pressure swing adsorption method
- the inert gas generated by the above-described inert gas generating means is further converted into microbubbles by using a filter having pores.
- the method includes, but is not limited to, a method of generating, a method of injecting into a liquid sample using a spray nozzle, and a method of supplying bubbles from below the stirring blade and dispersing them into fine bubbles.
- a method of generating microbubbles by using a filter having pores is preferable.
- the pore diameter of the filter is preferably from 5 x 100 m.
- the diameter of the microbubbles is preferably the diameter of the bubbles generated by the filter.
- the dissolved gas molecules diffuse into microbubbles according to Henry's law while the microbubbles rise in the liquid sample. It is taken in. Bubbles composed of a mixture of the gas to be extracted and the inert gas collapse on the liquid surface in the treatment tank (separation tank), and the gas to be extracted is discharged out of the system together with the inert gas.
- microbubbles are passed through the liquid sample, and convection is generated due to the rise of the microbubbles in the sample.
- Method for effectively generating ascending and descending flows in the tank preferably dissolved by means of stirring blades in addition to the ventilation of microbubbles
- the ascending and descending flows can be generated even more effectively, and the concentration distribution of the liquid sample can be made uniform. it can.
- the pressure of the liquid sample containing dissolved gas is approximately atmospheric pressure, it is sufficient that the supply pressure of the inert gas is higher than the head pressure of the liquid sample. If the liquid sample containing dissolved gas is subjected to excess pressure, the inert gas shall be supplied at a pressure equal to or higher than the sum of the pressure and the head pressure.
- a high-pressure liquid sample containing a high concentration of carbon dioxide contains 10 to 30 times the volume (converted to standard conditions) of carbon dioxide of a liquid sample. When the pressure is released, vigorous foaming occurs in the liquid sample, and a large amount of the sample overflows from the separator filled with the liquid sample.
- inert gas nitrogen
- the inert gas has a solubility in aqueous solution of about 1Z25 compared to carbon dioxide, so that the liquid sample from which carbon dioxide has been separated shows almost no bubbles when depressurized.
- the supply pressure of the inert gas is determined in consideration of the following factors.
- the dissolved gas is separated and released by depressurization without ventilating the inert gas until near IMP a. After the pressure of the sample solution has dropped to about IMPa, it is better to extract and separate the dissolved gas by passing an inert gas pressurized to about the same level. At this time, the pressure of the inert gas supplied along with the removal of the dissolved gas can be reduced.
- the separation processing temperature of dissolved gas according to the present invention the liquid sample is 0 to 4 0 D C, is preferably preferably 0 to 3 0 ° C. As the temperature of the liquid sample becomes higher than 30 ° C., the residual ratio of the fragrance component in the liquid sample tends to decrease, which is not preferable. In particular, when the temperature exceeds 40 ° C, this tendency becomes remarkable.
- carbon dioxide remaining in a liquid sample can be separated to a concentration that cannot be detected by humans, and the quality of the sample deteriorates due to oxygen and the like. It can be used for various purposes because it is possible to prevent deterioration of quality due to oxygen.
- the separation method according to the present invention is a method in which a product is left in a product prior to filling the product into a container. In addition to separating existing gas, it can also be used after filling a liquid sample into a container.
- Examples of the material of the treatment tank in the present invention include, but are not limited to, stainless steel, iron and steel, various reinforced plastics, and composite materials thereof.
- the shape of the treatment tank is not particularly limited, such as a cylindrical shape and a polygonal shape.
- the inert gas generating means in the present invention a compression cylinder (high-pressure storage tank), a liquefaction tank, a device in which nitrogen in the atmosphere is locally separated, and the like are used.
- Means for suppressing the concentration polarization of the liquid sample in the present invention include a method of effectively generating an ascending flow and a descending flow in a dissolved gas processing tank (separation tank) by a stirring blade, and adding a liquid sample.
- a method of providing a partition wall in the space of a treated tank (vessel) to effectively generate ascending and descending flows, aeration of microbubbles in a liquid sample, and the generation of convection due to the rise of microbubbles in the sample Depending on the method, there are a method of effectively generating an upflow and a downflow in a treatment tank (degassing tank), a method of using a propeller stirring blade, a spiral band stirring blade, a spiral shaft stirring blade, and the like.
- Examples of the material of the partition wall in the present invention include, but are not limited to, stainless steel, iron and steel, ceramic, glass, various plastics, and composite materials thereof.
- the shape of the partition wall may be cylindrical or flat, and it is not necessary to completely separate the upflow side and the downflow side.
- the place to be installed in the treatment tank is not limited to the central part, and may be any place.
- a heating or cooling coil can be used as a partition wall.
- Examples of the material of the gas-liquid separation tank include, but are not limited to, stainless steel, iron and steel, various types of reinforced plastics, and composite materials thereof.
- the shape of the gas-liquid separation tank is not particularly limited, such as a cylindrical shape and a polygonal shape.
- FIG. 1 is a schematic diagram of a dissolved gas separation device according to Embodiment 1 of the present invention.
- 1 is a device for separating dissolved gas in the present embodiment
- 2 is a cylindrical processing tank made of reinforced plastic
- 3 is orange juice which is a liquid sample containing dissolved gas contained in the processing tank 2.
- Numeral 4 denotes a compressed cylinder formed at the bottom of the processing tank 2 for generating microbubbles of an inert gas, which is an inert gas generating means.
- Numeral 5 denotes nitrogen which is an inert gas generated by the compressed cylinder 4.
- Filler that generates microbubbles of gas 6 is microbubbles of nitrogen gas passed through liquid sample 3
- 7 is a cooling or heating jacket
- 8 is a regulating valve.
- a dissolved gas is separated by using a method based on convection of a liquid sample caused by rising microbubbles.
- Inert gas microbubbles 6 were generated using a filter, but other methods include spraying into a liquid sample using a spray nozzle, and supplying bubbles from below the stirring blade to disperse them into microbubbles. There is.
- a separation method using the dissolved gas separation device 1 according to the present embodiment will be described below.
- the liquid sample 3 containing the dissolved gas is introduced into the processing tank 2, and the processing tank 2 is filled with the liquid sample 3. Thereafter, nitrogen gas is generated using a compression cylinder 4, and microbubbles 6 are passed through the liquid sample 3 through the filter 5.
- nitrogen gas is generated using a compression cylinder 4, and microbubbles 6 are passed through the liquid sample 3 through the filter 5.
- sterilization and enzyme deactivation of the liquid sample 3 using pressurized carbon dioxide are performed in the treatment tank 2, the pressure is reduced to a predetermined pressure, and nitrogen gas is generated using the compression cylinder 4.
- the microbubbles 6 are aerated through the liquid sample 3 through the filter 5.
- the dissolved gas molecules diffuse into the microbubbles 6 according to Henry's law and are taken into the microbubbles 6. Bubbles composed of a mixed gas of the gas to be extracted and the inert gas collapse on the liquid surface in the processing tank 2, and the gas to be extracted is discharged out of the system together with the inert gas.
- the carbon dioxide contained at a concentration that can be easily perceived by humans is filled before the liquid sample is filled into the container. It can be removed to levels that are not perceived by humans.
- FIG. 2 is a schematic diagram of a dissolved gas separation device according to Embodiment 2 of the present invention.
- 1a is a device for separating dissolved gas in the present embodiment
- 2a is a cylindrical processing tank made of reinforced plastic
- 3a is a liquid containing dissolved gas contained in the processing tank 2a.
- Sample orange juice, 4a is formed at the bottom of treatment tank 2a, generates microbubbles of inert gas.
- Compressed cylinder as inert gas generating means 5a is generated from compressed cylinder 4 6a is a filter that generates microbubbles of nitrogen gas, which is inert gas, Microbubbles of gas, 7a is a cooling or heating jacket, 8a is a regulating valve, 9a is disposed in the processing tank 2a, and a plastic partition with upper and lower openings and a cylindrical shape The wall.
- the space of the processing tank 2a is partitioned by the partition wall 9a.
- a gap is formed between the bottom surface of the processing tank 2a and the partition wall 9a, so that the inside of the processing tank 2a can be circulated through the partition wall 9a.
- the dissolved gas is separated using a method based on convection of the liquid sample 3a caused by the rise of the microbubbles 6a.
- a separation method using the dissolved gas separation device 1a according to the present embodiment will be described below.
- the liquid sample 3a containing the dissolved gas is introduced into the processing tank 2a, and the processing tank 2a is filled with the liquid sample 3a. Thereafter, nitrogen gas is generated using the compression cylinder 4a, and microbubbles 6a are passed through the liquid sample 3a through the filter 5a.
- sterilization of liquid sample 3 using pressurized carbon dioxide and enzyme inactivation treatment are performed in treatment tank 2, pressure is reduced to a predetermined pressure, nitrogen gas is generated using compression cylinder 4, and filter 5 is used.
- the microbubbles 6 are aerated in the liquid sample 3 through the.
- the ventilated microbubbles 6a and the dissolved gas rise to the upper layer of the liquid surface, and the liquid sample 3a containing the dissolved gas overflows from the liquid surface to the outer wall surface of the partition 7a, and then overflows from the liquid surface.
- the discharged liquid sample 3a moves downward, circulates again through the gap below the partition wall 7a, and the dissolved gas rises together with the microbubbles 6a. This is repeated many times.
- the dissolved gas molecules diffuse into the microbubbles 6a according to Henry's law and are taken into the microbubbles 6a. Bubbles consisting of a mixture of the gas to be extracted and the inert gas are treated. The liquid is broken down on the liquid surface in the treatment tank 2a, and the gas to be extracted is discharged out of the system together with the inert gas.
- the inside of the partition wall 7a has an upward flow, and the outside has a downward flow.
- An arrangement that generates an upflow including the microbubbles 6a of the active gas is also possible.
- FIG. 3 is a schematic diagram of a dissolved gas separation device according to Embodiment 3 of the present invention.
- 1b is a device for separating dissolved gas in the present embodiment
- 2b is a cylindrical processing tank made of reinforced plastic
- 3b is a liquid containing dissolved gas contained in the processing tank 2b.
- the sample orange juice, 4b is formed at the bottom of the treatment tank 2b and generates microbubbles of inert gas.
- the compressed gas cylinder is an inert gas generating means
- 5b is the compressed cylinder 4b.
- a filter that generates microbubbles of the generated inert gas, nitrogen gas, 6 b is microbubbles of nitrogen gas that has passed through the liquid sample 3 b
- 7 b is a cooling or heating jacket
- 8 b is a jacket.
- Adjusting valve, 9b is disposed in processing tank 2b, upper and lower parts are opened, and a cylindrical plastic partition wall is formed.10b is disposed at the bottom of processing tank 2b A stirring blade as a means for suppressing concentration polarization of the liquid sample 3b.
- a method of effectively generating an ascending flow and a descending flow in the dissolved gas treatment tank 2b by the stirring blade 10b was ventilated through the liquid sample 3b, and convection was generated due to the rise of the microbubble 6b in the sample 3b.
- a method of effectively generating a downward flow a method of using a probe stirring blade, a spiral band stirring blade, a spiral shaft stirring blade, and the like.
- the inside of the partition wall 7b has an upward flow, and the outside has a downward flow.
- a downward flow may be generated inside the partition wall 7b, and the downward flow may not occur outside the partition wall 7b.
- An arrangement that generates an upflow including the microbubbles 6b of the active gas is possible.
- the partition wall 9b and the stirring blade 10b by providing the partition wall 9b and the stirring blade 10b, it is possible to more effectively generate the ascending flow and the descending flow in the processing tank 2b for the liquid sample 3b. And the concentration polarization of the liquid sample 3b can be suppressed. Further, it is possible to avoid the occurrence of severe foaming in the liquid sample 3b (Embodiment 4)
- FIG. 4 is a schematic diagram of a dissolved gas separation device according to Embodiment 4 of the present invention.
- 1 c is a device for separating dissolved gas in the present embodiment
- 2 c is a cylindrical processing tank made of reinforced plastic
- 3 c is a liquid containing dissolved gas contained in the processing tank 2 b.
- the sample orange juice, 4 c is formed at the bottom of the treatment tank 2 b and generates microbubbles of inert gas.
- a filter that generates microbubbles of the generated inert gas, nitrogen gas, 6 c is microbubbles of nitrogen gas ventilated in the liquid sample 3 c
- 7 c is a cooling or heating jacket
- 8 c is A regulating valve
- 9 c is disposed in the processing tank 2 b
- 10 c is disposed in the processing tank 2 c.
- FIG. 5 is a schematic diagram of an apparatus for continuously separating dissolved gases according to Embodiment 5 of the present invention.
- 1d is a continuous apparatus for separating dissolved gases in the present embodiment
- 2d is a liquid sample flowing upward from below, and micro bubbles of an inert gas are aerated in the flow.
- a reinforced plastic processing tank 3 d is orange juice, which is a liquid sample containing dissolved gas flowing upward in the processing tank, and 4 d is pressurized nitrogen as an inert gas formed at the bottom of the processing tank 2 d.
- Compressed cylinder as inert gas generating means for generating micro bubbles 5 d is a filter that generates micro bubbles of nitrogen gas, which is inert gas generated by 4 d of compressed cylinder, 6 d is Liquid gas 3d microbubbles of nitrogen gas ventilated in 3d, 11d is a gas that separates a mixed gas consisting of dissolved gas and nitrogen gas extracted by nitrogen gas and a liquid sample from which dissolved gas has been separated.
- Liquid separation tank, 1 2 d connects treatment tank 2 d and gas-liquid separation tank 1 1 d That is a piping. No partition walls or stirring blades are required in the treatment tank 2d.
- the liquid sample 3d and the inert gas are both introduced from below the treatment tank 2d. Pressurized nitrogen as an inert gas is released into the liquid sample 3 d as micro bubbles 6 d generated by the filter 5 d. Both the liquid sample 3 d and the inert gas microbubbles 6 d move upward from below in the treatment tank 2 d, but the rising speed of the microbubbles 6 d moves the liquid sample 3 d due to the buoyancy acting on it. Be faster than speed.
- the mixed gas of the inert gas and the dissolved gas and the liquid sample from which the dissolved gas has been separated are carried from the upper part of the treatment tank 2 d to the gas-liquid separation tank 11 d via the same pipe 12 d.
- Gas-liquid separation tank 1 The mixture of the liquid sample and the mixed gas is separated into a liquid layer and a gas layer in the gas-liquid separation tank 11d, and the gas layer is separated and discharged from the upper pipe and the liquid phase is separated and discharged from the lower pipe.
- the liquid sample 3d is continuously introduced into the processing tank 2d, and the liquid sample 3d from which the dissolved gas is continuously separated is discharged.
- the removal rate of dissolved carbon dioxide with respect to the nitrogen gas aeration rate was measured using the apparatus of Embodiment 2 of the present invention.
- the nitrogen gas flow rate is 1.0 for the gas flow rate of the same volume as the liquid sample.
- [D C ⁇ 2 ] is the concentration of dissolved carbon dioxide. The same applies hereinafter.
- dissolved carbon dioxide was removed and the removal rate of dissolved carbon dioxide was measured by a method of performing treatment under reduced pressure by a rotary evaporator and a method of performing ultrasonic treatment under reduced pressure.
- a liquid sample containing dissolved carbon dioxide (commercial orange juice) was placed in a 500 ml eggplant-shaped flask, and degassed by a rotary evaporator under a pressure (100 mm Hg) at which no bubbles were generated.
- the rotation speed of the evaporator was 40 rpm.
- the dissolved carbon dioxide concentration after the 2 min, 4 min and 6 min degassing treatment was measured with a carbon dioxide gas concentration meter. The results are shown in Fig. 7 (marked in the figure).
- Example 2 As described above, the removal efficiency was considerably lower in both the reduced pressure treatment and the ultrasonic treatment under reduced pressure as compared with the gas ventilation method in Example 1.
- Example 2
- the apparatus of Embodiment 3 of the present invention was used in the same manner as above, with the cylindrical partition wall and the stirring blade in the separation tank removed. .
- the dissolved carbon dioxide was measured by the dissolved carbon dioxide concentration meter used in Example 1.
- the method of quantifying the aroma component is as follows.
- FIG. 8 shows the effect of the gas aeration method on the escape rate of the aroma components.
- the concentration polarization of a liquid sample (commercially available orange juice) was suppressed using the apparatus according to the third embodiment of the present invention.
- FIG. 9 shows the effect of treatment temperature on the escape rate of fragrance components. From FIG. 9, it can be seen that when the treatment temperature is 40 ° C. or higher, the loss of the fragrance component increases rapidly. Therefore, it is found that it is effective to perform the degassing of carbon dioxide by the gas ventilation method at a sample temperature of 40 ° C. or lower, preferably 30 ° C. or lower. Industrial applicability
- fine bubbles of an inert gas can be generated in a liquid sample, and the gas dissolved in the liquid sample can be efficiently extracted and separated.
- loss of the specific component can be avoided by suppressing the concentration polarization of the specific component such as the volatile component.
- the dissolved gas can be efficiently degassed irrespective of the dissolved gas concentration while minimizing the escape of volatile components. It is possible to prevent the deterioration of the quality. In particular, it is suitable for degassing a large amount of gas dissolved in a liquid sample such as carbon dioxide.
- the liquid sample is contained at a concentration that is easily perceived by a human prior to filling the liquid sample into a container.
- Carbon dioxide can be removed to a level not perceived by humans, and the method and apparatus of the present invention can be applied to the food industry and the like.
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Abstract
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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AU2003244309A AU2003244309A1 (en) | 2002-06-20 | 2003-06-19 | Method of separating dissolved gas and separating apparatus |
JP2004515518A JPWO2004000434A1 (ja) | 2002-06-20 | 2003-06-19 | 溶存気体の分離方法及び分離装置 |
Applications Claiming Priority (2)
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JP2002-180500 | 2002-06-20 | ||
JP2002180500 | 2002-06-20 |
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WO2004000434A1 true WO2004000434A1 (ja) | 2003-12-31 |
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PCT/JP2003/007793 WO2004000434A1 (ja) | 2002-06-20 | 2003-06-19 | 溶存気体の分離方法及び分離装置 |
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JP (1) | JPWO2004000434A1 (ja) |
AU (1) | AU2003244309A1 (ja) |
WO (1) | WO2004000434A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012110349A (ja) * | 2006-04-10 | 2012-06-14 | Meiji Co Ltd | 香気成分の制御方法及び散逸防止方法 |
US20220186391A1 (en) * | 2020-12-15 | 2022-06-16 | National Chung Shan Institute Of Science And Technology | Gas-liquid separator of water electrolysis system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07313802A (ja) * | 1994-05-26 | 1995-12-05 | Nagano Pref Gov | 溶存酸素の高速除去方法および装置 |
JP2001129304A (ja) * | 1999-11-09 | 2001-05-15 | Kurita Water Ind Ltd | 脱酸素装置 |
JP2002028674A (ja) * | 2000-07-19 | 2002-01-29 | Hitachi Zosen Corp | オゾン利用浄水処理設備 |
JP2002159836A (ja) * | 2000-11-28 | 2002-06-04 | Shimadzu Corp | 液状物質の連続処理方法及び装置 |
-
2003
- 2003-06-19 JP JP2004515518A patent/JPWO2004000434A1/ja active Pending
- 2003-06-19 WO PCT/JP2003/007793 patent/WO2004000434A1/ja active Application Filing
- 2003-06-19 AU AU2003244309A patent/AU2003244309A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07313802A (ja) * | 1994-05-26 | 1995-12-05 | Nagano Pref Gov | 溶存酸素の高速除去方法および装置 |
JP2001129304A (ja) * | 1999-11-09 | 2001-05-15 | Kurita Water Ind Ltd | 脱酸素装置 |
JP2002028674A (ja) * | 2000-07-19 | 2002-01-29 | Hitachi Zosen Corp | オゾン利用浄水処理設備 |
JP2002159836A (ja) * | 2000-11-28 | 2002-06-04 | Shimadzu Corp | 液状物質の連続処理方法及び装置 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012110349A (ja) * | 2006-04-10 | 2012-06-14 | Meiji Co Ltd | 香気成分の制御方法及び散逸防止方法 |
US20220186391A1 (en) * | 2020-12-15 | 2022-06-16 | National Chung Shan Institute Of Science And Technology | Gas-liquid separator of water electrolysis system |
US11926909B2 (en) * | 2020-12-15 | 2024-03-12 | National Chung Shan Institute Of Science And Technology | Gas-liquid separator of water electrolysis system |
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Publication number | Publication date |
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AU2003244309A1 (en) | 2004-01-06 |
JPWO2004000434A1 (ja) | 2005-10-20 |
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