JPH0680404A - Method for synthesizing ozone using plasmatic reaction and its apparatus - Google Patents

Method for synthesizing ozone using plasmatic reaction and its apparatus

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Publication number
JPH0680404A
JPH0680404A JP23244592A JP23244592A JPH0680404A JP H0680404 A JPH0680404 A JP H0680404A JP 23244592 A JP23244592 A JP 23244592A JP 23244592 A JP23244592 A JP 23244592A JP H0680404 A JPH0680404 A JP H0680404A
Authority
JP
Japan
Prior art keywords
ozone
reaction
oxygen
water
synthetic zeolite
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.)
Granted
Application number
JP23244592A
Other languages
Japanese (ja)
Other versions
JP2768374B2 (en
Inventor
Hideaki Hayano
秀明 早野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP23244592A priority Critical patent/JP2768374B2/en
Publication of JPH0680404A publication Critical patent/JPH0680404A/en
Application granted granted Critical
Publication of JP2768374B2 publication Critical patent/JP2768374B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To remove defects of a synthetic method for ozone using plasmatic reaction in which the amount of the generated ozone is small as compared with that of fed oxygen and the ozone is collected in a mixture with oxygen molecule due to the conventional use of only the oxygen gas for the reactional synthesis. CONSTITUTION:In an ozone synthetic method using plasmatic reaction, a liquid vessel 18 having oxygen atoms is installed in a reactional furnace 7 and a synthetic zeolite trap 16 having the specificity capable of preferentially adsorbing molecules which are polar molecules and have a great dipole moment or molecules having a small molecular diameter is provided at the outlet of the reactional furnace. Ozone is then synthesized by feeding oxygen from a liquid having the oxygen atoms and water and the ozone which are polar molecules are adsorbed by the specificity of the synthetic zeolite The ozone is then separated and collected by utilizing the difference in the boiling point between the water and the ozone.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、プラズマ反応を用いた
オゾン合成方法と装置に関し、特にマイクロ波放電によ
る酸素プラズマと酸素原子を有する液体との界面反応機
構とオゾンの選択的捕集機構とによりオゾンを捕集する
オゾン合成方法と装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for synthesizing ozone using a plasma reaction, and more particularly to an interfacial reaction mechanism between oxygen plasma and a liquid containing oxygen atoms by a microwave discharge, and a selective ozone collecting mechanism. The present invention relates to an ozone synthesizing method and apparatus for collecting ozone by means of ozone.

【0002】[0002]

【従来の技術】プラズマ反応を用いた従来のオゾン合成
装置は、図3に示す様にガス源1, ニードルバルブ2,
ガスラインフィルター3, マスフローコントローラ4,
圧力計5, ストップバルブ6とからなるガス供給系と反
応炉7, 誘導コイル8, 電力計9, 高周波発振器10と
からなる反応系と液体窒素トラップA11, 真空ポンプ
12とからなる真空系とから構成されており、プラズマ
反応ガスとして酸素ガスを用い、オゾンを合成してい
た。
2. Description of the Related Art A conventional ozone synthesizer using a plasma reaction has a gas source 1, a needle valve 2,
Gas line filter 3, mass flow controller 4,
A gas supply system including a pressure gauge 5 and a stop valve 6, a reaction system including a reactor 7, an induction coil 8, an electric power meter 9 and a high frequency oscillator 10, and a vacuum system including a liquid nitrogen trap A11 and a vacuum pump 12. Ozone gas was used as the plasma reaction gas to synthesize ozone.

【0003】そして、このようにして合成されたオゾン
を、液体窒素トラップを用ることにより酸素分子と混在
させ液化捕集していた。
Then, the ozone synthesized in this way was liquefied and collected by mixing it with oxygen molecules by using a liquid nitrogen trap.

【0004】[0004]

【発明が解決しようとする課題】ところで、上述した従
来のプラズマ反応を用いたオゾン合成装置は、オゾン合
成において酸素ガスのみを反応合成に用いていることか
ら、最大3mol の酸素に対して2mol のオゾンしか合成
されないという欠点がある(3O2 →2O3 )。
By the way, in the above-mentioned conventional ozone synthesizing apparatus using the plasma reaction, since only oxygen gas is used for the reactive synthesis in ozone synthesizing, the maximum amount of 2 mol of oxygen is 3 mol. It has a drawback that only ozone is synthesized (3O 2 → 2O 3 ).

【0005】また、このオゾン合成過程において、反応
に関与しない酸素ガス並びプラズマ反応中での酸素原子
の再結合により、オゾンの捕集は酸素分子と混在して行
なわれなければならないという欠点を有している。
Further, in this ozone synthesis process, there is a drawback that ozone must be collected together with oxygen molecules by recombination of oxygen gas not involved in the reaction and oxygen atoms in the plasma reaction. is doing.

【0006】本発明は上記した従来技術の課題に鑑みて
提案されたもので、前記従来技術の課題を解消したオゾ
ン合成方法と装置を提供することを目的とする。
The present invention has been proposed in view of the above problems of the prior art, and an object of the present invention is to provide an ozone synthesizing method and apparatus in which the above problems of the prior art are solved.

【0007】[0007]

【課題を解決するための手段】本発明のプラズマ反応を
用いたオゾン合成方法と装置は、反応炉内に酸素原子を
有する液体槽を設け、反応炉の出口に極性分子であり、
かつ双極子モーメントの大きい分子、または分子径の小
さい分子を優先的に吸着させることの出来る特異性を有
する合成ゼオライトトラップを設けることによって、酸
素ガスからのオゾン合成のみならず、酸素原子を有する
液体からの酸素供給によるオゾン合成を可能ならしめ、
かつ、合成ゼオライトに極性分子である水とオゾンを吸
着させ、この極性分子の沸点の違いを利用してオゾンを
選択的に捕集することを特徴とする。
A method and apparatus for synthesizing ozone using a plasma reaction of the present invention comprises a liquid tank having oxygen atoms in a reaction furnace and polar molecules at the outlet of the reaction furnace.
In addition to the ozone synthesis from oxygen gas, by providing a synthetic zeolite trap having specificity that can preferentially adsorb molecules with a large dipole moment or molecules with a small molecular diameter, a liquid containing oxygen atoms If it is possible to synthesize ozone by supplying oxygen from the
Further, it is characterized in that the synthetic zeolite adsorbs water and ozone, which are polar molecules, and selectively collects ozone by utilizing the difference in boiling points of the polar molecules.

【0008】[0008]

【実施例】本発明について図面を参照して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings.

【0009】図1は、本発明の第1実施例のオゾン合成
方法を実施するための装置の概略構成図である。
FIG. 1 is a schematic configuration diagram of an apparatus for carrying out the ozone synthesizing method of the first embodiment of the present invention.

【0010】この第1実施例のプラズマ反応を用いたオ
ゾン合成方法を実施するための装置は、ガス供給系と反
応系と真空系との3部から構成されている。
The apparatus for carrying out the ozone synthesis method using the plasma reaction of the first embodiment is composed of three parts, a gas supply system, a reaction system and a vacuum system.

【0011】ガス供給系は、酸素ガスボンベ1と、ニー
ドルバルブ2と、ガスラインフィルタ3と、マスフロー
コントローラ4と、これらを導通接続する配管とから構
成されている。
The gas supply system is composed of an oxygen gas cylinder 1, a needle valve 2, a gas line filter 3, a mass flow controller 4, and a pipe connecting these components in a conductive manner.

【0012】反応に際し、反応系内を約50Torr程
度まで液体窒素トラップA11を通して排気し、反応ガ
スとして用いる酸素ガスをガスボンベ1よりマスフロー
コントローラ4を通して、所定の流量にて反応系へと導
入する。ガス圧は圧力計5にて所定の圧力に設定してお
く。電力は周波数2.45GHz, 出力200Wのマイ
クロ波発振器14より供給され、高密度のプラズマを得
ることができる。
During the reaction, the inside of the reaction system is evacuated to about 50 Torr through the liquid nitrogen trap A11, and oxygen gas used as a reaction gas is introduced from the gas cylinder 1 through the mass flow controller 4 into the reaction system at a predetermined flow rate. The gas pressure is set to a predetermined pressure by the pressure gauge 5. Electric power is supplied from the microwave oscillator 14 having a frequency of 2.45 GHz and an output of 200 W, and high density plasma can be obtained.

【0013】ガスボンベ1より供給された酸素ガスの放
電により生成される酸素分子イオン及び酸素原子イオン
による、反応炉の出口に張られた液体槽中の水(H
2 O)へのスパッタリングにより、オゾン合成への酸素
源である酸素が供給され、下記に示すような反応が進行
し、オゾンが合成される。
Water (H) in the liquid tank which is set up at the outlet of the reactor is formed by oxygen molecule ions and oxygen atom ions generated by the discharge of oxygen gas supplied from the gas cylinder 1.
Oxygen, which is an oxygen source for ozone synthesis, is supplied by the sputtering of 2 O), and the reaction shown below proceeds to synthesize ozone.

【0014】(1) O2 +e→O2 + +2e (2) O2 +e→2O2 + +2e (3) O2 + +H2 O+e→O3 +2H (4) 2O2 + +H2 O+e→O3 +2H このようにして合成されたオゾンは、反応炉と真空系と
の間に設けられた合成ゼオライト20を有するトラップ
16に導入される。そうすると、合成ゼオライトの特異
性により、極性分子である水(H2 O)とオゾン
(O3 )とを吸着する。
(1) O 2 + e → O 2 + + 2e (2) O 2 + e → 2O 2 + + 2e (3) O 2 + + H 2 O + e → O 3 + 2H (4) 2O 2 + + H 2 O + e → O 3 + 2H The ozone thus synthesized is introduced into the trap 16 having the synthetic zeolite 20 provided between the reaction furnace and the vacuum system. Then, due to the specificity of the synthetic zeolite, water (H 2 O) and ozone (O 3 ) which are polar molecules are adsorbed.

【0015】この際、合成ゼオライトを有するトラップ
を液体窒素トラップB17で冷却しておき、吸着された
水(H2 O), オゾン(O3 )の分離は沸点の違い
(水;100℃, オゾン;−112℃ 1気圧下)を利
用し、合成ゼオライトを有するトラップを冷却していた
液体窒素トラップB17を取り外すことにより、選択的
に捕集することが出来る。
At this time, the trap having the synthetic zeolite is cooled by the liquid nitrogen trap B17, and the adsorbed water (H 2 O) and ozone (O 3 ) are separated by different boiling points (water; 100 ° C., ozone ; -112 ° C. under 1 atm), and the liquid nitrogen trap B17 which has cooled the trap having the synthetic zeolite is removed, whereby the trap can be selectively collected.

【0016】[0016]

【実施例2】次に本発明の第2実施例について説明す
る。
Second Embodiment Next, a second embodiment of the present invention will be described.

【0017】この第2実施例としては、前記第1実施例
におけるオゾン合成への酸素源として、過酸化水素水
(H2 2 )19を用いたものである。
In the second embodiment, hydrogen peroxide solution (H 2 O 2 ) 19 is used as an oxygen source for ozone synthesis in the first embodiment.

【0018】過酸化水素水をオゾン合成への酸素源とし
て用いることによって、合成ゼオライトへの吸着物を水
(H2 O)とオゾン(O3 )だけにすること、即ち、前
記吸着物以外の極性分子を生成させないことを目的とし
ている。
By using hydrogen peroxide water as an oxygen source for ozone synthesis, the only adsorbate on the synthetic zeolite is water (H 2 O) and ozone (O 3 ). The purpose is not to generate polar molecules.

【0019】過酸化水素水をオゾン合成への酸素源とし
て用いた場合に進行する反応を下記に示す。
The reactions that proceed when hydrogen peroxide solution is used as an oxygen source for ozone synthesis are shown below.

【0020】(1) O2 +e→O2 + +2e (2) O2 +e→2O+ +2e (3) O2 +H2 2 +e→O3 2 +2H+O (4) 2O2 +H2 2 +e→O3 2 +2H+O 以下、第1実施例と同じく、合成ゼオライトへの吸着、
捕集するものである。
(1) O 2 + e → O 2 + + 2e (2) O 2 + e → 2O + + 2e (3) O 2 + H 2 O 2 + e → O 3 2 + 2H + O (4) 2O 2 + H 2 O 2 + e → O 3 2 + 2H + O Below, as in the first embodiment, adsorption to synthetic zeolite,
It is to collect.

【0021】[0021]

【発明の効果】以上説明した様に本発明は、プラズマ反
応を用いたオゾン合成装置に酸素原子を有する液体槽を
設けることにより、オゾン合成への酸素源をガスボンベ
からの酸素のみならず、供給でき、従来技術と比較し、
収率は2倍程度となる。又、反応炉と真空系部との間に
特異性を有する合成ゼオライトを設けることにより、オ
ゾンを選択的に捕集出来る効果を有している。
As described above, according to the present invention, by providing a liquid tank having oxygen atoms in an ozone synthesizing apparatus using a plasma reaction, not only oxygen from a gas cylinder but also oxygen is supplied to ozone synthesizing. Yes, compared to conventional technology,
The yield is about double. Further, by providing a synthetic zeolite having specificity between the reaction furnace and the vacuum system part, it has an effect that ozone can be selectively collected.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の装置の第1実施例の概略図。FIG. 1 is a schematic view of a first embodiment of the device of the present invention.

【図2】本発明の装置の第2実施例の概略図。FIG. 2 is a schematic view of a second embodiment of the device of the present invention.

【図3】従来技術の概略図。FIG. 3 is a schematic diagram of a conventional technique.

【符号の説明】[Explanation of symbols]

1…酸素ガスボンベ 2…ニードルバルブ 3…ガスラインフィルタ 4…マスフローコントローラ 5…圧力計 6…ストップバルブ 7…反応炉 8…誘導コイル 9…電力計 10…高周波発振器 11…液体窒素トラップA 12…真空ポンプ 13…導波管 14…マイクロ波発振器 15…電源 16…トラップ 17…液体窒素トラップB 18…水槽 19…過酸化水素水槽 20…合成ゼオライト 1 ... Oxygen gas cylinder 2 ... Needle valve 3 ... Gas line filter 4 ... Mass flow controller 5 ... Pressure gauge 6 ... Stop valve 7 ... Reactor 8 ... Induction coil 9 ... Power meter 10 ... High frequency oscillator 11 ... Liquid nitrogen trap A 12 ... Vacuum Pump 13 ... Waveguide 14 ... Microwave oscillator 15 ... Power supply 16 ... Trap 17 ... Liquid nitrogen trap B 18 ... Water tank 19 ... Hydrogen peroxide water tank 20 ... Synthetic zeolite

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 プラズマ反応を用いたオゾン合成方法に
おいて、反応炉内に酸素原子を有する液体槽を設け、該
反応炉の出口に極性分子であり、かつ、双極子モーメン
トの大きい分子または分子径の小さい分子を優先的に吸
着させることのできる特異性を有する合成ゼオライトト
ラップを設け、酸素原子を有する液体からの酸素供給に
よりオゾン合成をし、かつ、合成ゼオライトの特異性に
より極性分子である水とオゾンを吸着させ、該水とオゾ
ンの沸点の相違を利用してオゾンを分離捕集することを
特徴とするプラズマ反応を用いたオゾン合成方法。
1. In an ozone synthesis method using a plasma reaction, a liquid tank having oxygen atoms is provided in a reaction furnace, and a molecule or a molecule having a large dipole moment, which is a polar molecule and has a large dipole moment, is provided at an outlet of the reaction furnace. A synthetic zeolite trap with specificity capable of preferentially adsorbing small molecules is used to synthesize ozone by supplying oxygen from a liquid containing oxygen atoms, and due to the specificity of synthetic zeolite, water is a polar molecule. And ozone are adsorbed, and ozone is separated and collected by utilizing the difference in boiling points of the water and ozone, and an ozone synthesis method using a plasma reaction.
【請求項2】 ガス供給系とプラスマ反応系とそれらに
付属する真空系とを有して構成されているプラズマ反応
を用いたオゾン合成装置において、前記反応系が反応炉
内に酸素原子を有する液体槽を設けた界面反応機構及び
反応炉と前記真空系との間に、合成されたオゾンを選択
的に捕集する機構を有することを特徴とするプラスマ反
応を用いたオゾン合成装置。
2. An ozone synthesizer using a plasma reaction, which comprises a gas supply system, a plasma reaction system, and a vacuum system attached to them, wherein the reaction system has oxygen atoms in the reaction furnace. An ozone synthesizer using a plasma reaction, which has an interface reaction mechanism provided with a liquid tank and a mechanism for selectively collecting the synthesized ozone between the reaction furnace and the vacuum system.
JP23244592A 1992-08-31 1992-08-31 Ozone synthesis method and apparatus using plasma reaction Expired - Lifetime JP2768374B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23244592A JP2768374B2 (en) 1992-08-31 1992-08-31 Ozone synthesis method and apparatus using plasma reaction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23244592A JP2768374B2 (en) 1992-08-31 1992-08-31 Ozone synthesis method and apparatus using plasma reaction

Publications (2)

Publication Number Publication Date
JPH0680404A true JPH0680404A (en) 1994-03-22
JP2768374B2 JP2768374B2 (en) 1998-06-25

Family

ID=16939391

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23244592A Expired - Lifetime JP2768374B2 (en) 1992-08-31 1992-08-31 Ozone synthesis method and apparatus using plasma reaction

Country Status (1)

Country Link
JP (1) JP2768374B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6214199B1 (en) 1998-04-03 2001-04-10 Mitsubishi Heavy Industries, Ltd Ozone storage/recovery method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6214199B1 (en) 1998-04-03 2001-04-10 Mitsubishi Heavy Industries, Ltd Ozone storage/recovery method
US6528024B2 (en) 1998-04-03 2003-03-04 Mitsubishi Heavy Industries, Ltd. Ozone storage/recovery system

Also Published As

Publication number Publication date
JP2768374B2 (en) 1998-06-25

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