JP2993991B2 - Gas cleaning method - Google Patents
Gas cleaning methodInfo
- Publication number
- JP2993991B2 JP2993991B2 JP2052688A JP5268890A JP2993991B2 JP 2993991 B2 JP2993991 B2 JP 2993991B2 JP 2052688 A JP2052688 A JP 2052688A JP 5268890 A JP5268890 A JP 5268890A JP 2993991 B2 JP2993991 B2 JP 2993991B2
- Authority
- JP
- Japan
- Prior art keywords
- sunlight
- gas
- photoelectrons
- fine particles
- photoelectron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
- B03C3/47—Collecting-electrodes flat, e.g. plates, discs, gratings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/38—Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation or flames
- B03C3/383—Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation or flames using radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/60—Use of special materials other than liquids
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、気体の清浄方法に係り、特に光電子による
気体中の微粒子の電荷による気体の清浄方法に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for purifying a gas, and more particularly to a method for purifying a gas by the charge of fine particles in the gas by photoelectrons.
本発明の気体の清浄方法は、家庭、事務所、病院ある
いは各種産業におけるクリーンルーム、安全キャビネッ
ト、無菌室等の気体の清浄に用いることができる。The gas cleaning method of the present invention can be used for cleaning gas in clean rooms, safety cabinets, sterile rooms, and the like in homes, offices, hospitals, and various industries.
従来の技術を、事務所における空気清浄器を例に説明
する。The conventional technology will be described by taking an air cleaner in an office as an example.
空気清浄器は、主に予備荷電部、捕集部、ファン部
（空気吸引のための動力部）から成る。ファン部のファ
ンにより吸引された空気中の微粒子類は、予備荷電部に
て、例えば10〜70KVという高電圧の印加された電場で荷
電され、後方の捕集部にて捕集される。The air purifier mainly includes a preliminary charging unit, a collecting unit, and a fan unit (power unit for sucking air). The fine particles in the air sucked by the fan of the fan unit are charged in an electric field to which a high voltage of, for example, 10 to 70 KV is applied in a preliminary charging unit, and collected in a rear collecting unit.
このように構成されているため、荷電のために高電圧
が必要なことから動力費が高く、安全性や維持管理の面
でも課題であった。Because of such a configuration, a high voltage is required for charging, so that the power cost is high, and there are also problems in terms of safety and maintenance.
又、このような清浄器は、ファン（空気の吸引部）を
設置し空気を吸引しているので、騒音の課題があり、夜
間の使用や病院での使用においては課題であった。Further, such a purifier has a noise (noise) problem since it is provided with a fan (air suction unit) and sucks air, which is a problem in nighttime use and hospital use.
本発明は、前記のような課題を解決し、高電圧の必要
性のない、騒音の少ない安全で維持管理の楽な気体の清
浄化方法を提供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a method for purifying gas which is safe and easy to maintain and maintain with little noise without the need for high voltage.
上記課題を解決するために、本発明では、光電子放出
材に太陽光を照射することにより、光電子を放出せし
め、該光電子により気体中に含まれている微粒子を荷電
させ、該荷電微粒子を気体より除去するに際し、前記光
電子放出材への太陽光の照射を、電場内において行うと
共に、前記光電子放出材を、ガラス材及び／又は高分子
材からなる光透過性物質に付加させることを特徴とする
気体の清浄方法としたものである。In order to solve the above problems, in the present invention, the photoelectron emitting material is irradiated with sunlight to emit photoelectrons, and the photoelectrons are used to charge fine particles contained in a gas. Upon removal, the photoelectron emitting material is irradiated with sunlight in an electric field, and the photoelectron emitting material is added to a light transmitting material made of a glass material and / or a polymer material. This is a gas cleaning method.
また、本発明では、光電子放出材に太陽光を照射する
ことにより光電子を放出せしめ、該光電子により気体中
に含まれている微粒子を荷電させ、該荷電微粒子を気体
より除去するに際し、前記光電子放出材への太陽光の照
射を、電場内において行うと共に、前記太陽光の照射
を、光ファイバーを用いて行うことを特徴とする気体の
清浄方法としたものである。Further, in the present invention, photoelectrons are emitted by irradiating the photoelectron emitting material with sunlight, the fine particles contained in the gas are charged by the photoelectrons, and when removing the charged fine particles from the gas, the photoelectron emission is performed. A method for cleaning gas comprising irradiating sunlight to a material in an electric field and irradiating the sunlight using an optical fiber.
次に、本発明を詳細に説明する。 Next, the present invention will be described in detail.
前記の光電子放出材は、太陽光の照射により、光電子
を放出するものである。したがって、該放出材は、太陽
光の照射により光電子を放出するものであれば、何れで
も良く、光電的な仕事関数が小さなもの程好ましく、更
には加工性の良いものが実用的に有効である。The photoelectron emission material emits photoelectrons when irradiated with sunlight. Therefore, the emission material may be any material that emits photoelectrons by irradiating sunlight, and a material having a small photoelectric work function is preferable, and a material having good workability is practically effective. .
そして、太陽光を直接照射して用いる場合は、光電子
放出材を光透過性物質（基板）に付加させて使用するの
がよい。In the case of directly irradiating sunlight, it is preferable to use a photoelectron emitting material added to a light transmitting substance (substrate).
付加の方法は、太陽光の照射により光電子が放出され
れば、何れでも良い。例えば、ガラス基板上へコーティ
ングして使用する方法、他の例として基板表面近傍へ埋
込んで使用する方法や基板上に付加し更にその上に別の
材料をコーティングして使用する方法、光透過性物質と
光電子放出材を混合して用いる方法等がある。又、付加
は、薄膜状に付加する方法、網状、線状、帯状に付加す
る方法等適宜用いることが出来る。Any method can be used as long as photoelectrons are emitted by irradiation of sunlight. For example, a method of coating and using on a glass substrate, a method of embedding near the substrate surface as another example, a method of adding on a substrate and coating another material thereon, and a light transmission There is a method of using a mixture of a reactive substance and a photoelectron emitting material. In addition, the addition can be performed as appropriate, such as a method of adding a thin film, a method of adding a net, a line, or a band.
光電子放出材は、効果や経済性の面から、Ba,Sr,Ca,
Y,Gd,La,Ce,Nd,Th,Pr,Be,Zr,Fe,Ni,Zn,Cu,Ag,Pt,Cd,Pb,
Al,C,Mg,Au,In,Bi,Nb,Si,Ta,Ti,Sn,Pのいずれか又はこ
れらの化合物又は合金又は混合物が好ましく、これらは
単独で又は二種以上を複合して用いられる。複合材とし
ては、アマルガムの如く物理的な複合材も用いうる。Photoemission materials are Ba, Sr, Ca,
Y, Gd, La, Ce, Nd, Th, Pr, Be, Zr, Fe, Ni, Zn, Cu, Ag, Pt, Cd, Pb,
Al, C, Mg, Au, In, Bi, Nb, Si, Ta, Ti, Sn, P or any of these compounds or alloys or mixtures are preferred, and these may be used alone or in combination of two or more. Can be As the composite material, a physical composite material such as amalgam can be used.
例えば、化合物としては酸化物、ほう化物、炭化物が
あり、酸化物にはBaO,SrO,CaO,Y2O5,Gd2O3,Nd2O3,ThO2,
ZrO2,Fe2O3,ZnO,CuO,Ag2O,PtO,PbO,Al2O3,MgO,In2O3,Bi
O,NbO,BeOなどがあり、またほう化物にはYB6,GdB6,La
B6,CeB6,PrB6,ZrB2などがあり、さらに炭化物としてはZ
rC,TaC,TiC,NbCなどがある。For example, the oxide as a compound, boride, there are carbides, BaO in the oxide, SrO, CaO, Y 2 O 5, Gd 2 O 3, Nd 2 O 3, ThO 2,
ZrO 2 , Fe 2 O 3 , ZnO, CuO, Ag 2 O, PtO, PbO, Al 2 O 3 , MgO, In 2 O 3 , Bi
O, NbO, BeO, etc., and the borides are YB 6 , GdB 6 , La
B 6 , CeB 6 , PrB 6 , ZrB 2 and the like.
There are rC, TaC, TiC, NbC and the like.
光透過性物質は、室内外の空気の流通を遮断し、太陽
光の透過性に優れ、その表面又は表面近傍に光電子放射
材が付加出来るものであれば、何れも使用出来る。特
に、太陽光の内波長の短い光（例、＜400nm）の透過性
が良いものが効果的であるので好ましい。通常、ガラス
材やアクリル樹脂のような高分子材が好適に使用でき
る。Any light-transmitting substance can be used as long as it blocks the flow of air inside and outside the room, has excellent sunlight permeability, and can be provided with a photoelectron emitting material on or near its surface. In particular, sunlight having a short wavelength (e.g., <400 nm) having good transmittance is preferable because it is effective. Usually, a polymer material such as a glass material or an acrylic resin can be suitably used.
光電子放出材の種類や透過性材料の種類、付加方法の
選択は、適用分野、経済性、太陽光の照射方法等により
検討し、あるいは予備試験を行い適宜行うことが出来
る。Selection of the type of the photoelectron emitting material, the type of the transmissive material, and the addition method can be appropriately performed by examining the application field, economy, the method of irradiating sunlight, or by conducting a preliminary test.
また、光電子の放出は、光電子による荷電に関する本
発明者等の別の発明（特開昭61−178050号公報、特開昭
62−244459号公報等参照）にあるように、電場を設置し
て行なうと効率良く実施出来るもので好ましい。The emission of photoelectrons is described in another invention (JP-A-61-178050, JP-A-61-178050) relating to charging by photoelectrons.
As described in Jpn.
該電場電圧は、2V/cm〜2KV/cmであり、好適な電場の
強さは、利用分野、条件、装置形状、規模、効果、経済
性等で適宜予備試験や検討を行い決めることが出来る。The electric field voltage is 2 V / cm to 2 KV / cm, and a suitable electric field strength can be determined by appropriate preliminary tests and examinations in use fields, conditions, device shapes, scales, effects, economics, and the like. .
電場の装置の有無や電場の強さは、光電子放出材や光
透過性材料の種類、付加の方法、適用分野、経済性、太
陽光の照射方法、効果等により適宜決めることが出来
る。The presence or absence of the electric field device and the intensity of the electric field can be appropriately determined depending on the type of the photoelectron emitting material or the light transmitting material, the method of addition, the application field, the economic efficiency, the method of irradiating sunlight, the effect, and the like.
電場の設置の方法は、周知の方法が適宜使用でき、前
記した光電子による荷電に関する本発明者の別の発明に
記載した方法等が使用できる。As a method for setting the electric field, a well-known method can be used as appropriate, and the method described in another invention of the present inventor regarding charging by photoelectrons can be used.
捕集電極６は、電荷粒子が捕集出来るものであれば何
れも使用出来、周知の捕集板、捕集フィルター、捕集電
極が好適に使用出来る。エレクトレット材も好適に使用
できる。Any collecting electrode 6 can be used as long as it can collect the charged particles, and a well-known collecting plate, a collecting filter, and a collecting electrode can be suitably used. Electret materials can also be suitably used.
又、本発明者がすでに提案したイオン交換フィルター
（又は繊維）を用いて捕集する方法も有効である（特開
昭63−54959号、同63−77557号、同63−84656号各公報
参照）。In addition, the method of collection using an ion exchange filter (or fiber) already proposed by the present inventors is also effective (see JP-A-63-54959, JP-A-63-77557, and JP-A-63-84656). ).
イオン交換フィルターは、荷電微粒子の捕集に加え
て、共存する酸性ガス、アルカリ性ガス、臭気性ガス等
も同時に捕集できるので実用上好ましい。The ion exchange filter is practically preferable because it can collect not only the charged fine particles but also the coexisting acid gas, alkaline gas, odorous gas and the like.
使用するアニオン交換フィルター及びカチオン交換フ
ィルターの種類、使用量及びその比率は、気体中の荷電
微粒子の荷電状態やその濃度、或いは同伴する酸性ガ
ス、アルカリ性ガス、臭気性ガスの種類、濃度等に応じ
て適宜決めることができる。The type, amount and ratio of the anion exchange filter and cation exchange filter to be used depend on the charge state and concentration of the charged fine particles in the gas, or the type and concentration of the accompanying acidic gas, alkaline gas, and odorous gas. Can be determined appropriately.
例えば、アニオン交換フィルターは負荷電微粒子や酸
性ガスの捕集に、またカチンオン交換フィルターは正荷
電の微粒子やアルカリ性ガスの捕集に効果的である。フ
ィルターの使用量やその比率は、上述の捕集すべき物質
の濃度や濃度比率に対応して、これらに見合う量を、装
置の適用分野、形状、構造、効果、経済性等を考慮して
適宜決めれば良い。For example, an anion exchange filter is effective for collecting negatively charged fine particles and acidic gas, and a kachin-on exchange filter is effective for collecting positively charged fine particles and alkaline gas. The amount of filter used and its ratio correspond to the concentration and concentration ratio of the substance to be collected, and the amount corresponding to these, considering the application field, shape, structure, effect, economy, etc. of the device It may be determined appropriately.
光電子放出材への太陽光の照射は、ガラス材に直接照
射する方法の他に、太陽光を光ファイバーに集め光ファ
イバーによる光を照射する方法もあり、利用分野によっ
ては有効である。The method of irradiating the photoelectron emitting material with sunlight is not only a method of directly irradiating the glass material, but also a method of collecting sunlight in an optical fiber and irradiating the light with an optical fiber, which is effective depending on the application field.
光ファイバーによる照射は、光透過性材料が使用出来
ない適用分野や、太陽光が直接照射しない空間（例、地
下空間）の空気清浄に有効である。Irradiation with an optical fiber is effective in an application field in which a light-transmitting material cannot be used, or for air purification in a space where sunlight is not directly irradiated (for example, an underground space).
なお、光ファイバーによる照射の場合は、光の照射を
光電子放出材に直接できるので、光透過性物質の使用は
必要ないことは言うまでもない。In addition, in the case of irradiation by an optical fiber, it is needless to say that the use of a light-transmitting substance is not necessary since light irradiation can be performed directly on the photoelectron emitting material.
光ファイバーの種類は、太陽光が導入出来るものであ
れば良く、利用分野、条件、装置形状、規模、使用光電
子放出材の種類、形状、効果、経済性等で適宜選択して
使用出来る。通常、石英ファイバーが好適に用いられ
る。The type of optical fiber may be any type as long as sunlight can be introduced, and can be appropriately selected and used depending on the application field, conditions, device shape, scale, type, shape, effect, economical efficiency, etc. of the used photoelectron emitting material. Usually, quartz fibers are preferably used.
以下、本発明を図面を用いて具体的に説明するが、本
発明はこの実施例に限定されるものではない。Hereinafter, the present invention will be specifically described with reference to the drawings, but the present invention is not limited to the embodiments.
実施例１ 第１図は、本発明の捕集原理を説明する概略説明図で
ある。Example 1 FIG. 1 is a schematic explanatory view for explaining the collection principle of the present invention.
第１図において、室内１には、タバコの煙等に起因し
た微粒子（粒子）２が浮遊している。In FIG. 1, fine particles (particles) 2 caused by tobacco smoke and the like are floating in a room 1.
空気の清浄化は、太陽光３、金属薄膜４がコーティン
グされたガラス基板５及び捕集電極（捕集板）６によっ
て構成された装置で実施される。The cleaning of the air is performed by an apparatus including the sunlight 3, the glass substrate 5 coated with the metal thin film 4, and the collecting electrode (collecting plate) 6.
ガラス基板５上の金属薄膜４は、太陽光の照射により
光電子７を放出し、粒子２を荷電する。荷電された粒子
（荷電粒子）８は、室の片側に設置された捕集電極６に
て捕集され、室内１は清浄空気となる。そして、空気の
対流により室内の空気に循環が起こり、清浄化が促進さ
れる。金属薄膜４は、薄膜状の光電子放出材であり太陽
光の照射により光電子を放出するものである。The metal thin film 4 on the glass substrate 5 emits photoelectrons 7 by irradiation of sunlight and charges the particles 2. The charged particles (charged particles) 8 are collected by the collecting electrode 6 installed on one side of the room, and the room 1 becomes clean air. Then, the air in the room is circulated by the convection of the air, and the purification is promoted. The metal thin film 4 is a thin film-shaped photoelectron emitting material that emits photoelectrons when irradiated with sunlight.
ここでは、事務所における空気清浄であり、ガラス材
５の上に金を薄膜状にコーティングして用いている。Here, the air is cleaned in an office, and the glass material 5 is coated with gold in a thin film form.
捕集電極６は、金属製の網状捕集電極を用いている。 As the collecting electrode 6, a metal net-like collecting electrode is used.
本例では、空気清浄にあたりファン（微粒子を含有す
る空気の導入又は排出機構）の設置を行っていないが、
適宜の位置に設置し、実施することが出来る。In this example, a fan (a mechanism for introducing or discharging air containing fine particles) was not installed for air cleaning.
It can be installed at an appropriate position and implemented.
ファンの設置は、小規模でも顕著な効果を生ずるので
好ましく、利用分野、条件、装置形状、規模、効果、経
済性等により、適宜決めることが出来る。The installation of the fan is preferable because a remarkable effect is produced even in a small scale, and can be appropriately determined depending on the field of use, conditions, device shape, scale, effect, economy, and the like.
本発明によれば、次のような効果を奏する。 According to the present invention, the following effects can be obtained.
ａ） 太陽光を光電子放出材に照射し光電子を放出させ
て粒子荷電を行うことにより、動力費が実質的には不要
の粒子荷電法となった。a) By irradiating the photoelectron emitting material with sunlight and emitting photoelectrons to perform the particle charging, the power charging method is substantially unnecessary.
ｂ） 太陽光の光電子放出材への照射を電場で行うこと
により、粒子への荷電が効果的に出来た。b) The particles were effectively charged by irradiating the photoelectron emitting material with sunlight in an electric field.
ｃ） ａ）,b）の荷電粒子の捕集を行うことにより 動力費が低コストの空気清浄法となった。c) The collection of charged particles in a) and b) resulted in a low-cost air cleaning method with low power cost.
高電圧を使用しないので、安全性が高く、維持管理
が容易な空気清浄法となった。Since no high voltage is used, the air cleaning method is highly safe and easy to maintain.
ｄ） 太陽光による照射を光ファイバーを用いて行うこ
とにより、 太陽光を直接照射出来ない空間（例、地下空間）に
おいても、同様の空気清浄が出来た。d) By irradiating with sunlight using an optical fiber, the same air purification was achieved even in a space where sunlight could not be directly radiated (eg underground space).
可視光も同時に導入出来るので、空気清浄に加え照
明度の向上があるので、適用分野（例、地下空間）によ
っては有効な空気清浄となった。Since visible light can be introduced at the same time, the degree of illumination is improved in addition to air purification, so that effective air purification is achieved depending on the application field (eg, underground space).
ｅ） ファン（空気吸引部）の設置がなくても、又はフ
ァンの設置を行う場合であっても小規模で良いので騒音
が無いか又は少なくてすみ、かつ動力の少ない空気清浄
法となった。e) Even if the fan (air suction unit) is not installed, or even if the fan is installed, the air purifying method can be performed with little or no noise because it can be small in scale and requires less power. .
第１図は、本発明の捕集原理を説明するための概略構成
図である。 １……室内、２……粒子、３……太陽光、４……金属薄
膜、５……ガラス基板、６……捕集電極、７……光電
子、８……荷電粒子FIG. 1 is a schematic configuration diagram for explaining the collection principle of the present invention. DESCRIPTION OF SYMBOLS 1 ... Indoor 2 ... Particle 3 ... Sunlight 4 ... Metal thin film 5 ... Glass substrate 6 ... Collecting electrode 7 ... Photoelectron 8 ... Charged particles
Claims (2)
り、光電子を放出せしめ、該光電子により気体中に含ま
れている微粒子を荷電させ、該荷電微粒子を気体より除
去するに際し、前記光電子放出材への太陽光の照射を、
電場内において行うと共に、前記光電子放出材を、ガラ
ス材及び／又は高分子材からなる光透過性物質に付加さ
せることを特徴とする気体の清浄方法。A photoelectron emission material is irradiated with sunlight to emit photoelectrons, and the photoelectrons charge fine particles contained in a gas. When the charged fine particles are removed from the gas, the photoelectron emission material is emitted. Irradiation of sunlight to the material,
A method for cleaning a gas, wherein the method is performed in an electric field, and wherein the photoelectron emitting material is added to a light transmitting substance made of a glass material and / or a polymer material.
り、光電子を放出せしめ、該光電子により気体中に含ま
れている微粒子を荷電させ、該荷電微粒子を気体より除
去するに際し、前記光電子放出材への太陽光の照射を、
電場内において行うと共に、前記太陽光の照射を、光フ
ァイバーを用いて行うことを特徴とする気体の清浄方
法。And irradiating the photoelectron emitting material with sunlight to emit photoelectrons. The photoelectrons are used to charge fine particles contained in a gas, and when the charged fine particles are removed from the gas, the photoelectron is emitted. Irradiation of sunlight to the material,
A method for cleaning a gas, wherein the method is performed in an electric field, and the irradiation of the sunlight is performed using an optical fiber.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2052688A JP2993991B2 (en) | 1990-03-06 | 1990-03-06 | Gas cleaning method |
| US07/664,853 US5154733A (en) | 1990-03-06 | 1991-03-05 | Photoelectron emitting member and method of electrically charging fine particles with photoelectrons |
| EP91103433A EP0445787B1 (en) | 1990-03-06 | 1991-03-06 | Photoelectron emitting member and uses thereof |
| DE69105220T DE69105220T2 (en) | 1990-03-06 | 1991-03-06 | Component emitting photoelectrons and applications therefor. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2052688A JP2993991B2 (en) | 1990-03-06 | 1990-03-06 | Gas cleaning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03258357A JPH03258357A (en) | 1991-11-18 |
| JP2993991B2 true JP2993991B2 (en) | 1999-12-27 |
Family
ID=12921831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2052688A Expired - Fee Related JP2993991B2 (en) | 1990-03-06 | 1990-03-06 | Gas cleaning method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2993991B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1829614A1 (en) * | 2006-03-02 | 2007-09-05 | Technische Universiteit Delft | Method for the removal of smut, fine dust and exhaust gas particles, particle catch arrangement for use in this method and use of the particle catch arrangement to generate a static electric field |
-
1990
- 1990-03-06 JP JP2052688A patent/JP2993991B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03258357A (en) | 1991-11-18 |
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