WO2004011136A1 - フィルター用素子、フィルター及びその使用方法並びに浄化方法 - Google Patents
フィルター用素子、フィルター及びその使用方法並びに浄化方法 Download PDFInfo
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- WO2004011136A1 WO2004011136A1 PCT/JP2003/009583 JP0309583W WO2004011136A1 WO 2004011136 A1 WO2004011136 A1 WO 2004011136A1 JP 0309583 W JP0309583 W JP 0309583W WO 2004011136 A1 WO2004011136 A1 WO 2004011136A1
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- filter
- filter element
- element according
- adsorbent powder
- activated carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
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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
- 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
- B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/01—Deodorant compositions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2055—Carbonaceous material
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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
- B01D53/02—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
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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
- B01D53/02—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
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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
- B01D53/02—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
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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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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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
- 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
- B01J20/2805—Sorbents inside a permeable or porous casing, e.g. inside a container, bag or membrane
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
- B01D2239/0659—The layers being joined by needling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/125—Size distribution
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- 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
- B01D2253/30—Physical properties of adsorbents
- B01D2253/302—Dimensions
- B01D2253/304—Linear dimensions, e.g. particle shape, diameter
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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
- B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/45—Gas separation or purification devices adapted for specific applications
- B01D2259/4541—Gas separation or purification devices adapted for specific applications for portable use, e.g. gas masks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/45—Gas separation or purification devices adapted for specific applications
- B01D2259/4566—Gas separation or purification devices adapted for specific applications for use in transportation means
Definitions
- the present invention relates to a filter element, a filter, a method of using the filter, and a purification method. More specifically, this is a filter element in which an adsorbent powder is sandwiched between sheets and integrated with a needle punch, and the 50% particle diameter of the adsorbent powder is D 5 . (Mm) and the total pressure loss per adsorbent powder measured at room temperature with an air flow rate of 1 mZ seconds is P [(P a) / (g / m 2 )], the adsorbent due to the sheet when the pressure loss of the powder holding amount per Ri and P f [(P a) / (g / m 2) ], 0 ⁇ P - P f ⁇ 1.
- a filter using the filter element of the present invention has excellent deodorizing and purifying functions for gas or liquid, and has a very small pressure loss relative to the amount of adsorbent powder used. It can be suitably used as various purification filters such as water purification applications, car cabin filters, indoor air purification filters, air conditioner filters, exhaust gas purification filters, and mask filters. Background art
- activated carbon has been widely used in various fields such as adsorption and removal of harmful gases, gas purification and separation and recovery. Gas occlusion, molecular sieves, decolorization purification in the food and chemical industries, water treatment, electric double layer capacitors, etc. But activated carbon Is widely used in various filters because of its excellent ability to adsorb and remove various malodorous substances over a fairly wide range. Activated carbon for filters is often used in powdered or crushed form and filled into containers.However, activated carbon formed into a tubular or sheet form is easy to handle. Things are commonly used. However, in recent years, despite the great demand for activated carbon as a filter, the fact is that its use is limited due to the large pressure loss.
- Japanese Patent Application Laid-Open No. 3-151012 discloses an adsorbent, a fine powder binder, and a reinforcing fiber.
- An adsorptive filter consisting of is disclosed.
- a flat filter a granular activated carbon is coated with a thermoplastic plastic such as polyethylene, and filled in a mold placed on a polypropylene net.
- an air filter is used for air purification.
- Japanese Patent Application Laid-Open No. 3-238011 discloses an air purification filter in which an electrifying filter and a planar sheet are laminated and combined. This filter reduces the pressure loss by employing a corrugated sheet.
- Japanese Patent Application Laid-Open No. Hei 4-74505 discloses an air purification filter element in which an electret filter and an adsorbent-containing filter are laminated and integrally formed in a pleated shape, and the pressure loss is small. Have been.
- the pressure loss of the planar sheet with the activated carbon adhered is still large, the cost is high, and the use thereof is often limited.
- JP-A-5-177713 discloses an activated carbon-adhered fiber sheet in which powdered activated carbon is adhered onto fibers without using an adhesive. ing. This sheet is obtained by dispersing fibers such as glass fibers and resin powder with an opening cylinder, opening the fibers, and performing an activation treatment.
- Japanese Patent Application Laid-Open No. Hei 6-219720 discloses a method in which the surface acidity of activated carbon is specified.
- a deodorizing filter material having an activated carbon layer formed on one surface of the sheet and an active inorganic adsorbent layer formed on the other surface is disclosed.
- U.S. Pat. No. 5,124,177 and U.S. Pat. No. 5,338,340 disclose activated carbon in a sheet coated with an adhesive, and jet air jet to activate the activated carbon. There is disclosed a filter having a sheet fixed to a sheet.
- Japanese Patent Application Laid-Open No. H10-102,663, Patent No. 28,186,933 and U.S. Pat. A structure is disclosed. It is described that these are composed of adsorptive particles such as activated carbon and heat fusible fibers and have high air permeability.
- the fibrous structures disclosed therein have a structure in which the adsorbent particles are sandwiched between the heat-fusible fibers, and are described as having high air permeability. The pressure loss is inevitably large because of the structure incorporated in the adhesive fiber.
- Low pressure loss is an important factor that should be possessed as a filter, and despite the various proposals that have been made so far, none are found to be satisfactory.
- the present applicant has studied to obtain a filter having a low pressure loss, and crushed the surface of the adhesive-coated base fabric.
- a patent application for a filter element in which the adsorbent powder described above is electrostatically or partially melted and adhered to a heat-fusible fiber has been filed as Japanese Patent Application No. 2001-105930.
- a filter using the filter element is excellent in deodorizing function and adsorption performance, and has a small pressure loss, and thus is useful for a cap filter, etc., but requires an adhesive and requires a manufacturing viewpoint. In many cases, pleating was necessary, and it was not always easy and the cost was high. Therefore, it is an object of the present invention to provide an easy-to-manufacture, strong retention of an adsorbent, a small pressure loss per adsorbent powder holding amount without impairing the deodorizing and purifying functions of gas or liquid.
- An object of the present invention is to provide a new filter element, a filter using the element, a method for using the filter, and a purification method using the filter. Disclosure of the invention
- the present inventors focused on a composite molded body in which an adsorbent powder was sandwiched between sheets and integrated with a 21 dollar punch.
- a laminated pulverized coal sheet cloth in which carbon powder such as activated charcoal is sandwiched by a nonwoven fabric and integrated by needle punching has been known from Japanese Patent Application Laid-Open No. HEI 8-111,876. Is to be attached to places where condensation occurs, such as buildings, with the primary purpose of absorbing moisture. It is also described that the sheet cloth allows air to permeate and at the same time adsorbs odor and has a deodorizing effect.
- the present inventors conducted further studies in order to obtain a filter having an excellent deodorizing function and an adsorbing function and having a low pressure loss.
- the present inventors have found that this object can be achieved by sandwiching an adsorbent powder having a specific relationship between the 0% particle diameter and the pressure loss with a sheet and integrating them with a needle punch. .
- Another invention of the present invention is a filter using such a filter element.
- Another invention of the present invention is a method of using a filter characterized by forcibly flowing a liquid or a gas to be treated through these filters.
- Still another aspect of the present invention is to incorporate these filters into a liquid purifying apparatus having at least a target liquid inlet and a processing liquid outlet, and purify the liquid by forcibly flowing the liquid.
- a method for purifying a liquid characterized in that:
- these filters are incorporated into a gas purifying apparatus including at least a gas inlet, a gas outlet, a fan, and a motor, and the gas is forcibly passed therethrough. It is a gas purification method characterized by purifying gas.
- FIG. 1 is an example of a schematic flow for producing a filter element of the present invention.
- the adsorbent powder used in the present invention is not particularly limited as long as it has an adsorbing function of deodorizing and purifying, and examples thereof include activated carbon, activated alumina, activated clay, silica gel, zeolite, and mixtures thereof. Can be given.
- the shape and size of the adsorbent powder are not particularly limited, and crushed, granular, fibrous or columnar powder is generally used.
- the sheet for sandwiching the adsorbent powder must have gas flowability.
- non-woven fabrics such as urethane foam, spun-pound, melt-prone non-woven fabric, dry non-woven fabric, wet non-woven fabric (paper), and polyester
- non-woven fabrics such as non-woven fabrics made of polymers such as polyester, polyamide, and polypropylene, woven fabrics, and cellulose can be exemplified.
- Nonwoven fabrics are roughly classified into a dry method and a wet method, and any method may be used. Further, various processing such as electret processing may be further performed as desired.
- the filter element of the present invention is integrated as a filter by sandwiching the above-mentioned adsorbent powder in a sheet and punching it with a dollop.
- the conditions for the needle punching are not particularly limited as long as the adsorbent powder such as activated carbon is firmly sandwiched, and a standard needle punching machine is used, for example, with a punch of 30 to 300 punches / cm 2. You can do it.
- the filter element of the present invention is most characterized in that the pressure loss is extremely small for the amount of adsorbent powder retained as compared with the conventional filter element.
- the pressure loss of the filter element is determined by flowing air at room temperature (usually at 25) in 1 msec using an apparatus specified in JISB 9101-1997. Measured.
- the filter element of the present invention has a 50% particle size of D 50 and (mm), under 1 m / s the total pressure loss of the adsorbent powder retained amount per measured by the air flow rate P [(P a) / (g / m 2) ] at room temperature, the adsorbent caused by the sheet
- the filter element of the present invention it is preferable to use an adsorbent powder having a specific average particle size and a specific standard deviation. That is, the 50% particle diameter D 5 of the adsorbent powder used in the present invention. (Average particle size) is preferably from 0.01 to 3 mm. More preferably, it is 0.4 mm to 1.5 mm. Further, in the particle size distribution of the adsorbent powder, a 50% particle diameter D 5. When a (mm), the standard deviation sigma g is defined (the integrated Furui 1 5.8 7% particle diameter) Z (5 0% particle diameter D 5 0) that 1. is from 1 to 2.0 Is preferred.
- the adsorbent powder having such a particle size distribution by using the adsorbent powder having such a particle size distribution, the pressure loss of the filter element per adsorbent powder holding amount can be reduced, and the adsorption performance is also excellent. It is preferred.
- the adsorbent powder holding amount is preferably 500 g / m 2 or more.
- Activated carbon is preferably used as the adsorbent powder because it has excellent adsorption performance such as deodorization and purification, and excellent adhesion to sheets.
- activated carbon coconut shells, palm palms, fruit seeds, sawdust , Eucalyptus, pine, and other plant-based, coal-based, and petroleum-based coke and pitch carbides made from them, phenolic resin, vinyl chloride-based resin, vinylidene chloride-based resin, and pinyl alcohol-based resin. be able to.
- the adsorbent powder be a mixed adsorbent powder composed of a plurality of types of adsorbent powders, because the application can be further expanded.
- the sheet is made of polyamide, such as various polyamides such as nylon, polyethylene terephthalate (PET), and polybutylene terephthalate (PBT), as well as heat fusible materials made of polyolefin such as modified polyester, polyethylene, and polypropylene.
- fibers are used.
- the heat-fusible fiber may be the entire sheet or a part thereof.
- the form of the sheet is preferably a nonwoven fabric, and as the nonwoven fabric, a nonwoven fabric containing heat-fusible fibers is preferable in terms of maintaining strength.
- it is preferable that at least a part of the heat-fusible fiber is a core-sheath type fiber.
- a core-sheath type fiber a core whose core is made of PET and whose sheath is made of a modified PET are preferable.
- sheath type fibers are used.
- Nonwoven fabric using heat fusion fibers is a weight per unit area of 4 0 ⁇ 2 0 0 g / m 2, a thickness of 0.. 5 to 4 mm, and a fiber fineness contains fibers. 3 to 5 0 dtex Are preferred.
- the fibers may be mixed fibers as long as the single fiber fineness is 3 to 50 dtex.
- the thickness of the nonwoven fabric is measured by a fiber pressure gauge (manufactured by Tester Ichigyo) by placing the nonwoven fabric on a 100 mm x 95 mm, 1.0 mm thick aluminum plate. Is done.
- the filter element according to the present invention exhibits a small pressure loss without impairing the adsorption function such as deodorization and purification, it is necessary to use a bulky nonwoven fabric and use an adhesive. This is presumed to be due to the fact that the pressure loss of the nonwoven fabric is relatively small compared to the pressure loss of the adsorbent powder due to the large amount of adsorbent powder retained.
- FIG. 1 shows an example of a schematic flow for manufacturing a fill element according to the present invention.
- 1 is an adsorbent powder such as activated carbon
- 2 is a lower nonwoven fabric
- 3 is an autoloader
- 4 is an upper nonwoven fabric
- 5 is a 21 dollar punching machine
- 6 is a laminating conveyor
- 7 is a slitter with a slitter
- 8 is a roll. .
- the filter element integrally manufactured by the needle punch is further subjected to a heat treatment.
- the apparatus for performing the heat treatment is not particularly limited. For example, two sets of heat-resistant nets may be rotated endlessly, and the filter element may be immersed in the gap.
- the heat treatment is performed at 150 to 200 ° C. for about 10 to 60 seconds, depending on the content of the heat-fusible fiber.
- the filter element obtained as described above may be used as a filter as it is, but it is preferable to use it in combination with a cover sheet because the adsorbent can be prevented from leaking out of the sheet.
- the filter element of the present invention has a small total pressure loss per adsorbent powder holding amount even when used as a filter in combination with a cover sheet.
- the cover sheets are preferably provided on both sides of the filter element.
- the filter element is preferably implemented by combining a filter for filtering fluid such as air and a force par sheet. It is preferable to use a nonwoven fabric as such a filter for filtration and the Z or force bar sheet, and it is preferable to use a nonwoven fabric made of the core-sheath type fiber as the nonwoven fabric. Further, a nonwoven fabric in which the core of the sheath-core fiber is PET and the sheath is a modified denatured core is preferable. Electret processed nonwoven fabric may be used as the air filtration filter.
- the filter element should be made of a metal reinforcing material such as aluminum, iron, copper, titanium, stainless steel, etc.
- a plastic reinforcing material such as ethylene, polypropylene, or polyester may be appropriately inserted and installed.
- these reinforcing materials those having a plate shape or a mesh shape and having a small pressure loss are preferable.
- the filter element of the present invention is used in a form of a filter, and can be used as various reaction catalysts at a temperature of about room temperature to about 100 ° C. Further, it is preferable to combine with a material having a catalytic function because the usefulness is widened.
- a filter having a composite function is known, but it has not been known to combine it with a material having a catalytic function.
- Materials having a catalytic function include, for example, activated carbon impregnated with various metals such as copper, silver, gold, iron, manganese, platinum, palladium chloride, and titanium oxide, and these molded bodies are used as necessary. Is done.
- the use of activated carbon impregnated with palladium chloride or a molded product thereof can remove gases such as ethylene and carbon monoxide, and the use of activated carbon added with light-responsive titanium oxide or a molded product thereof.
- the deodorizing efficiency can be improved, and in any case, the effect of the filter can be enhanced.
- the material having a catalytic function may be provided at the front of the filter element or at the rear of the element, but for example, an adsorption filter made of activated carbon having a desulfurizing effect is provided at the front, and palladium chloride is provided at the rear.
- the filter element and the material having a catalytic function of the present invention may be used in combination.
- the filter of the present invention adjusts the pore size of the adsorbent powder in accordance with the size of the substance adsorbed on the adsorbent powder, and controls various liquids such as drinking water, water and sewage, industrial wastewater, or lower aldehydes, , Ammonia, carbon monoxide It is used by forcibly flowing gases such as various polluted airs including air and various industrial exhaust gases including odors such as mercaptan.
- the filter of the present invention is excellent in adsorption performance, and of course, has a low pressure loss.
- a liquid purifying device including an inlet for a liquid to be processed and an outlet for a processing liquid, or at least, Various liquids or gases can be purified by incorporating the filter into a gas purification device including a gas inlet, a gas outlet, a fan and a motor, and forcibly flowing the liquid or gas.
- a gas purification device including a gas inlet, a gas outlet, a fan and a motor, and forcibly flowing the liquid or gas.
- 40 dtex PET fiber (Kojima Sangyo Co., Ltd. SP 1500 DL) 50% by weight, 13 dtex PET fiber (Kojima Sangyo Co., Ltd. SP1 364 SD, Y-shaped (Cross section) 25 wt%, 4.4 dtex PET fiber (manufactured by Toray, 9611, melting point: 110 ° C, core: PET, sheath: core-sheath fiber composed of modified PET) 20 Weight% and 6 dte X PET fiber (Kojima Sangyo Co., Ltd. SP 105 SD, black) 4 types of PET fiber of 5 weight% are dry-mixed, and the weight per unit area is 160 g / m 2 , thickness A nonwoven fabric of 3.7 mm and a pressure loss of 20 Pa was produced.
- the lower layer nonwoven fabric manufactured by Kuraray Chemical Co., Ltd. activated carbon GG 2 6/6 0 3 5 N (D 5:. 0. 4 3 5 mm, ⁇ g: 1. 2 3) is supplied from the auto loader, then The same nonwoven fabric as the lower layer was supplied as the upper nonwoven fabric, and the activated carbon powder was held by the upper and lower nonwoven fabrics.
- a needle punch machine manufactured by Kyowa Kikai Seisakusho Co., Ltd. was used to perform a 21-punch punch at 38 punches / cm 2 to integrate the upper and lower nonwoven fabrics and the activated carbon powder held between the nonwoven fabrics.
- Pressure loss was measured at 5 ° C for 1 mZ seconds and the pressure loss was found to be 183 Pa.
- the pressure loss of the sheet was 40 Pa, and the pressure loss per activated carbon powder holding amount P f was 0.0 3 7 [(P a) / (g / m 2) ]. From this, the pressure loss (P—P i) per activated carbon powder holding amount is 0.133 [(Pa) / (g / m 2 )].
- Table 1 shows the results.
- the raw material is GG 2 manufactured by Kuraray Chemical Co., Ltd. as activated carbon powder.
- modified EVA powder (Nittobo DAN—FUSE 7 2 1 1) as an adhesive )
- As a nonwoven sheet 30? 6? £ T nonwoven fabric (Toray T301) 4 5 wt%, 6 dtex PET fiber (Kojima Sangyo Co., Ltd. SP 105 SD) 27 wt%, 6 dtex PET fiber (Kojima Sangyo Co., SP 105 SD, black) 13 wt%, 4 dte hot-melt fiber (Toray 9 6 1 1) 15% by weight and a basis weight of 70 g / m 2 were used.
- the activated carbon powder and the modified EVA powder were uniformly placed on the nonwoven sheet at a constant mixing ratio, and the same nonwoven cloth on the lower surface was covered.
- Pressure heat treatment was performed between heat-resistant belts for 30 seconds in a heat treatment machine at 160 ° C (press pressure: 20 KPa).
- the mixing ratio of the modified EVA powder was 25% by weight and 15% by weight with respect to the activated carbon powder, and samples were prepared in each case, and the pressure loss was measured in the same manner as in Example 1.
- the results are shown in Table 1, all of which were outside the scope of the present invention.
- Pressure loss was measured for an automobile adsorption filter mounted on a commercial automobile.
- two brands, K-100 and K-501, manufactured by Freudenberg (Germany) with different activated carbon weights were targeted, but this is the final product with a dust filter installed.
- the dust filter was removed, and a non-woven cloth for the cover (upper and lower surfaces, pressure loss of 10 Pa each) was attached and the pressure loss was measured.
- Table 1 all of which were outside the scope of the present invention.
- nonwoven fabric a nonwoven fabric consisting of 60% by weight of PET of 3 dtex (T201 manufactured by Toray) and 40% by weight of PET of 6 dtex (SP105SD manufactured by Kojima Sangyo Co., Ltd.) / m 2 , thickness 2.0 mm).
- Activated carbon powder retention amount 2 8 6 g / m 2 P is 0 - 2 5 2 [(P a) / (g / m 2) ] (7 2 P a), P f is 0.1 2 2 [( P a) Z (g / m 2 )] (35 P a), (P—P f) is 0.129, and ⁇ ⁇ ⁇ ( ⁇ —P i) is 0.945.
- Example 2 the activity of the activated carbon powder loadings 9 7 2 g / m 2 A charcoal sheet was prepared and the adsorption performance was measured.
- the adsorption test was carried out in accordance with JISB 9901-19997, but as an index of adsorption performance, air containing 80 ppm of toluene was passed through in lm Z seconds, and every The toluene concentration after the adsorption was measured, and a toluene removal rate curve was created up to one hour later. By integrating this curve, the toluene removal rate (%) and the amount of toluene adsorbed per retained amount of activated carbon powder were determined. Table 2 shows the results.
- the adsorption performance was determined in the same manner as in Example 7, except that GG1635 manufactured by Kuraray Chemical Co., Ltd. was used as the activated carbon powder. Table 2 shows the results.
- a comparison test of adsorption performance was performed on two products, activated carbon adsorption filters manufactured by Freudenberg (for automobiles, K100, 501). This product is a pleated product and is equipped with a dust filter. The pleating condition is pitch 7.5 mm and height 28 mm for both products.
- An adsorption performance test similar to that of the example was conducted based on the cross-sectional area of the gas in the pre-molded state. The adsorption removal rate and the amount of adsorption per unit weight of activated carbon were measured, and the results are shown in Table 2. The amount of toluene adsorbed per unit weight of activated carbon was smaller than that in the examples.
- a filter for dust collection and a cover filter were attached to both sides of an activated carbon sheet (product number 7400-C1) manufactured by Kuraray Chemical Co., Ltd., and pre-processed.
- the pleated pitch was 8 mm and the height was 28 mm.
- An adsorption test was performed on the pleated molded body as in the comparative example. Table 2 shows the results. Toluene adsorption per unit weight of activated carbon It was a small value.
- a non-woven fabric (Mitsui Chemicals Spunbond PK 102, basis weight 13 g / m 2 ) was provided on both sides of the filter element prepared in Example 1 to create a filter for gas, and the pressure loss and adsorption amount were reduced. It was measured.
- the pressure loss P was 0.186 [(P a) Z (g / m 2 )] (200 Pa).
- the amount of activated carbon per toluene adsorbed was 0.26 (g / g).
- Pf * P F / Retained amount of activated carbon powder [(Pa) / (g / m 2 )]
- Example 1 A filter element Manufactured by Kuraray Chemical Co., Ltd. as active carbon powder GW 3 2/6 0 3 3 A (D 5:. 0. 3 4 5 mm, ag:. L 2 1) except for using, the same procedure as the actual Example 1 A filter element was manufactured.
- the element was placed on the outer side of a plastic cylinder having a diameter of 2.4 mm and a length of 14 O mm having a large number of water holes, and was loaded into a housing to form a water purifier. 0 cc).
- Raw water adjusted to a free chlorine concentration of 2 ppm by adding sodium hypochlorite to tap water is maintained at 20 ⁇ 1 ° C, and 50 to 250 liters (L) / Water was passed through at Hr.
- the free chlorine in the permeated water was measured by a spectrophotometer according to the O-toluidine method, and the chlorine removal rate was determined. Examine the relationship between the ratio (L) of the flowed water and the volume of the filter element (cumulative permeate, L / cc) and the chlorine removal rate, and calculate the cumulative permeate at the time when the chlorine removal rate reaches 80%. can and was dechlorinated capacity, SV 2 0 0 dechlorination ability when the H r- 1 1 5 0 L / cc, 5 0 0 H r - dechlorination abilities when the 1 is an l OOLZ cc However, it was enough for practical use.
- a sheet was formed in the same manner as in Example 1 except that the above-mentioned activated carbon-supported Pd catalyst was used as the activated carbon powder, and the amount of the activated carbon powder retained was set to 1000 gZm 2 . Table 3 shows the results.
- This sheet 0.07 m 2 , was loaded into a commercial air purifier and placed in a resin box with an internal volume of lm 3 . After setting the concentration to 3 0 111 and the humidity to 60%, the air purifier was started up, air was supplied at about 1 m / sec, and the CO removal effect was examined. The remaining C ⁇ residual rates were 12% and 1%, respectively.
- Sheeting was performed in the same manner as in Example 1 except that the impregnated carbon described above was used as the activated carbon powder, and the amount of the activated carbon powder held was set to 150 gm 2 .
- Table 3 shows the results.
- This sheet, 0.1 m 2 was loaded into a commercial air cleaner together with a light irradiation device, and placed in a resin B ⁇ X having an internal volume of 1 m 3 .
- Acetal After the dehydrogen concentration was adjusted to 100 ppm, the air purifier was started up, air was supplied at about 1 mZ second, and the effect of removing acetoaldehyde was examined. The residual ratio of cetaldehyde was 40% and 10%, respectively.
- the filter of the present invention is excellent in deodorizing function and adsorption performance and has a small pressure loss.
- the filter of the present invention is excellent in deodorizing function and adsorbing performance and has a small pressure loss. Therefore, the filter of the present invention is required to have a high deodorizing and adsorbing effect and a low pressure loss.
- the filter can be suitably used as a filter for purifying various types of filters, such as filters, filters for purifying indoor air, filters for air conditioners, filters for purifying exhaust gas, and filters for masks.
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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AU2003252714A AU2003252714A1 (en) | 2002-07-31 | 2003-07-29 | Filter element, filter and method of using and method of cleaning the same |
JP2004524178A JPWO2004011136A1 (ja) | 2002-07-31 | 2003-07-29 | フィルター用素子、フィルター及びその使用方法並びに浄化方法 |
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JP2002222285 | 2002-07-31 | ||
JP2002-222285 | 2002-07-31 |
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WO2004011136A1 true WO2004011136A1 (ja) | 2004-02-05 |
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PCT/JP2003/009583 WO2004011136A1 (ja) | 2002-07-31 | 2003-07-29 | フィルター用素子、フィルター及びその使用方法並びに浄化方法 |
Country Status (4)
Country | Link |
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JP (1) | JPWO2004011136A1 (ja) |
KR (1) | KR20050026065A (ja) |
AU (1) | AU2003252714A1 (ja) |
WO (1) | WO2004011136A1 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007319833A (ja) * | 2006-06-05 | 2007-12-13 | Fujikoo:Kk | 機能性フィルタ材の製造法 |
JP2008516810A (ja) * | 2004-10-18 | 2008-05-22 | ブロイアー ホルスト | 吸着性の繊維複合体 |
JP2010188318A (ja) * | 2009-02-20 | 2010-09-02 | Toyobo Co Ltd | ケミカルフィルター |
US20120132578A1 (en) * | 2009-08-06 | 2012-05-31 | Kuraray Chemical Co., Ltd. | Molded activated charcoal and water purifier involving same |
JP2015051261A (ja) * | 2013-06-28 | 2015-03-19 | セブ ソシエテ アノニム | 空気清浄器のためのフィルターカートリッジ |
JP2016203386A (ja) * | 2015-04-15 | 2016-12-08 | テクナード株式会社 | 除湿・消臭シート |
CN109982765A (zh) * | 2016-12-14 | 2019-07-05 | 菲勒有限公司 | 过滤器滤材、具有该过滤器滤材的过滤器元件以及过滤器滤材的制造方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102387831B1 (ko) * | 2020-08-24 | 2022-04-15 | 하종문 | 탄소 소재 부직포 시이트 제조 장치 및 그 방법 |
KR102495710B1 (ko) * | 2020-12-23 | 2023-02-06 | 주식회사 디아이티그린 | 에어필터 제조 장치에서 부직포 웹 위에 흡착성 활성 분말을 도포하는 도포수단 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49134783U (ja) * | 1973-03-19 | 1974-11-20 | ||
US4411948A (en) * | 1979-04-18 | 1983-10-25 | Takeda Chemical Industries, Ltd. | Air filter of three-dimensional mesh-structured webs |
US5985442A (en) * | 1996-06-19 | 1999-11-16 | Maruwa Co., Ltd. | Functional mat and its manufacturing method |
-
2003
- 2003-07-29 WO PCT/JP2003/009583 patent/WO2004011136A1/ja active Application Filing
- 2003-07-29 AU AU2003252714A patent/AU2003252714A1/en not_active Abandoned
- 2003-07-29 JP JP2004524178A patent/JPWO2004011136A1/ja active Pending
- 2003-07-29 KR KR1020057001692A patent/KR20050026065A/ko not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49134783U (ja) * | 1973-03-19 | 1974-11-20 | ||
US4411948A (en) * | 1979-04-18 | 1983-10-25 | Takeda Chemical Industries, Ltd. | Air filter of three-dimensional mesh-structured webs |
US5985442A (en) * | 1996-06-19 | 1999-11-16 | Maruwa Co., Ltd. | Functional mat and its manufacturing method |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008516810A (ja) * | 2004-10-18 | 2008-05-22 | ブロイアー ホルスト | 吸着性の繊維複合体 |
JP2007319833A (ja) * | 2006-06-05 | 2007-12-13 | Fujikoo:Kk | 機能性フィルタ材の製造法 |
JP2010188318A (ja) * | 2009-02-20 | 2010-09-02 | Toyobo Co Ltd | ケミカルフィルター |
US20120132578A1 (en) * | 2009-08-06 | 2012-05-31 | Kuraray Chemical Co., Ltd. | Molded activated charcoal and water purifier involving same |
US9033158B2 (en) | 2009-08-06 | 2015-05-19 | Kuraray Chemical Co., Ltd. | Molded activated charcoal and water purifier involving same |
JP2015051261A (ja) * | 2013-06-28 | 2015-03-19 | セブ ソシエテ アノニム | 空気清浄器のためのフィルターカートリッジ |
JP2019034238A (ja) * | 2013-06-28 | 2019-03-07 | セブ ソシエテ アノニム | 空気清浄器のためのフィルターカートリッジ |
JP2016203386A (ja) * | 2015-04-15 | 2016-12-08 | テクナード株式会社 | 除湿・消臭シート |
CN109982765A (zh) * | 2016-12-14 | 2019-07-05 | 菲勒有限公司 | 过滤器滤材、具有该过滤器滤材的过滤器元件以及过滤器滤材的制造方法 |
Also Published As
Publication number | Publication date |
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KR20050026065A (ko) | 2005-03-14 |
AU2003252714A1 (en) | 2004-02-16 |
JPWO2004011136A1 (ja) | 2005-11-24 |
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