JPH01203023A - Method for controlling exhaust of volatile chemical substance - Google Patents
Method for controlling exhaust of volatile chemical substanceInfo
- Publication number
- JPH01203023A JPH01203023A JP63025900A JP2590088A JPH01203023A JP H01203023 A JPH01203023 A JP H01203023A JP 63025900 A JP63025900 A JP 63025900A JP 2590088 A JP2590088 A JP 2590088A JP H01203023 A JPH01203023 A JP H01203023A
- Authority
- JP
- Japan
- Prior art keywords
- chemical substance
- closed system
- removal device
- closed
- urethane foam
- 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.)
- Pending
Links
- 239000000126 substance Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims description 23
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 abstract description 13
- 239000006260 foam Substances 0.000 abstract description 11
- 238000011084 recovery Methods 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 abstract description 7
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 17
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、揮発性化学物質による大気汚染を防止するた
め、その大気中への排出を抑制する方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method of suppressing the emission of volatile chemicals into the atmosphere in order to prevent air pollution caused by volatile chemicals.
フロン等の化学物質は環境汚染や環境破壊をもたらす危
険性を有するため、化学物質の排出を抑制する方法や技
術の開発が社会的に要請されている。従来、安全性の高
い化学物質は回収せずに環境中へ放出され、また、危険
性のある物質は希釈して放出されているため、長期に亘
る使用で環境中に蓄積する可能性が高まってきている。Since chemical substances such as fluorocarbons pose a risk of causing environmental pollution and destruction, there is a social demand for the development of methods and technologies to suppress the discharge of chemical substances. Traditionally, highly safe chemical substances have been released into the environment without being recovered, and potentially dangerous substances have been diluted and released, increasing the possibility that they will accumulate in the environment after long-term use. It's coming.
しかし、希釈された化学物質の回収、処理は技術的に困
難であるばかりでなく、経費がかさむなどコストの面で
も問題が残されている。However, recovery and processing of diluted chemical substances is not only technically difficult, but also poses problems in terms of cost, such as increased expenses.
本発明者は、従来の高濃度大気放出あるいは高希釈大気
放出を改め、化学物質を使用する場所あるいは化学物質
が発生する場所を密閉系あるいは擬密閉系とし、この密
閉系に化学物質除去装置の組み込まれた気体循環設備を
取り付け、これによって化学物質を吸収、除去もしくは
回収することを原理とする揮発性化学物質排出抑制方法
を発明した。The present inventor modified the conventional high-concentration atmospheric release or highly diluted atmospheric release to create a closed system or quasi-closed system in the place where chemical substances are used or where the chemical substances are generated, and installed a chemical substance removal device in this closed system. We have invented a method for suppressing volatile chemical emissions, which is based on the principle of installing built-in gas circulation equipment to absorb, remove, or recover chemical substances.
密閉系あるいは擬密閉系は、化学物質使用工程あるいは
化学物質気化発生工程上支障が生じない程度に密閉し、
冥体状化学物質が系外に漏出しないよう大気圧もしくは
系外の圧力より少し低い気圧に保てる構造であればよい
。また、密閉系内の冷却が必要な場合には、密閉系内の
気体循環設備における吸引過程もしくは排出過程におい
て乾式冷却もしくは湿式冷却が可能な構造とすることが
望ましい。Closed systems or quasi-closed systems must be sealed to the extent that they do not interfere with the process of using chemical substances or the process of vaporizing chemical substances.
Any structure that can maintain the atmospheric pressure or a pressure slightly lower than the pressure outside the system is sufficient so that the chemical substance in the form of the body does not leak out of the system. In addition, if cooling in the closed system is required, it is desirable to have a structure that allows dry cooling or wet cooling in the suction process or discharge process in the gas circulation equipment in the closed system.
化学物質除去法としては液化法、吸着法、化学的処理法
、燃焼処理法もしくはそれらの組合せ法等のいずれの方
法でもよい。回収再利用の面からは液化法、吸着法が望
ましい。The chemical substance removal method may be any method such as a liquefaction method, an adsorption method, a chemical treatment method, a combustion treatment method, or a combination thereof. From the standpoint of recovery and reuse, liquefaction and adsorption methods are desirable.
本発明の方法に従うと、大気中に放出していた化学物質
の回収あるいは除去を効率よく行うことが可能であるた
め、環境汚染、環境破壊を未然に防止すると共に、回収
によって、化学物質の再利用が可能となる。According to the method of the present invention, it is possible to efficiently recover or remove chemical substances that have been released into the atmosphere, thereby preventing environmental pollution and environmental destruction, and by recovering chemical substances. It becomes available for use.
実施例１
第１図はウレタンホーム■のストックヤード■を密閉構
造とし、ウレタンホーム内から発生するフロンガスを含
む空気もしくは高濃度のフロンガス■を、吸引構造■、
回収除去装置■及び冷却装置■から成る気体循環設備内
を循環させることにより、ストックヤード内の温度上昇
を抑制すると共にフロンガスを効率よく回収する施設の
略図である。ストックヤード内にウレタンホームを搬入
、搬出する場合にぼ系外からの大気の混入を防止する工
夫が必要となるが、完全密閉系とする必要はなく擬密閉
系でもよい。ウレタンホーム内では化学反応の進行によ
る発熱があるため、バイパス■を経て循環量を増加し、
冷却効果を増加してもよい。回収除去装置にはフロンガ
スの濃度に応して液化法あるいは吸着法が利用されるが
、フロンガスの回収率が最高となるように循環気体量を
調節することが望ましい。また、必要に応じて、フロン
ガス以外の有害あるいは危険な気体を除去する装置を具
備することが更に望ましい。なお、気体循環装置は第１
図のように建屋外に設置する方がその侃守管理上好都合
であるが、場合に応じて建屋内に設置してもよい。Embodiment 1 Figure 1 shows a stockyard (■) of urethane foam (■) with a sealed structure, and air containing fluorocarbon gas or high-concentration fluorocarbon gas (■) generated from within the urethane foam is sucked into a suction structure (■).
This is a schematic diagram of a facility that suppresses temperature rise in the stockyard and efficiently recovers fluorocarbon gas by circulating the gas through a gas circulation facility consisting of a recovery/removal device (1) and a cooling device (2). When transporting the urethane platform into and out of the stockyard, it is necessary to take measures to prevent air from entering the system from outside the system, but it is not necessary to use a completely closed system, and a pseudo-closed system may be used. Because heat is generated due to the progress of chemical reactions inside the urethane platform, the amount of circulation is increased through a bypass ■.
The cooling effect may be increased. A liquefaction method or an adsorption method is used in the recovery and removal device depending on the concentration of the fluorocarbon gas, but it is desirable to adjust the amount of circulating gas so that the recovery rate of the fluorocarbon gas is maximized. Furthermore, it is more desirable to include a device for removing harmful or dangerous gases other than fluorocarbon gas, if necessary. Note that the gas circulation device is
It is more convenient to install it outside the building as shown in the figure, but it may be installed inside the building depending on the situation.
実施例２
電子部品、機械部品の洗浄工程で使用されるフロン類が
気化する場（第１図中■に相当）を密閉系とし、この閉
鎖系内に処理システムを設置して、フロンガスの大気放
出を低減すると同時にその回収を行う。Example 2 The area where fluorocarbons used in the cleaning process of electronic and mechanical parts vaporizes (corresponds to ■ in Figure 1) is a closed system, and a processing system is installed within this closed system to eliminate the atmosphere of fluorocarbon gas. Reducing emissions and recovering them at the same time.
実施例３
第２図はフロン類を使用するウレタンホーム■製造工程
を密閉系もしくは擬密閉系■とし１発生するフロンガス
■を吸引口■を経て回収除去装置■へ導き回収あるいは
除去する。回収除去装置は第１図ストックヤードに附属
する回収除去装置■を用いてもよい。吸引口は必要に応
じて複数あってもよい。また、製品の製造、加工、移送
等で揮発性化学物質が気化する全工程を閉鎖系もしくは
擬密閉系とすれば、フロンの回収、除去等の効果を高め
ることができる。Embodiment 3 Figure 2 shows a urethane foam manufacturing process using fluorocarbons in a closed or quasi-closed system (1).The generated fluorocarbon gas (1) is guided to a recovery and removal device (2) through a suction port (2) and is recovered or removed. As the collection and removal device, the collection and removal device (3) attached to the stockyard in Figure 1 may be used. There may be a plurality of suction ports as required. Furthermore, if all processes in which volatile chemical substances are vaporized during product manufacturing, processing, transportation, etc. are made into a closed system or a quasi-closed system, the effects of fluorocarbon recovery, removal, etc. can be enhanced.
第１図は揮発性化学物質が気化する空間を密閉系もしく
は擬密閉系とし、気体状化学物質を閉鎖系で除去もしく
は回収する方法を示し、ウレタンフオームのストッヤー
ドを例としたものである。
■はウレタンフオーム、■は密閉構造としたストックヤ
ード、■はウレタンフオーム内部から発生するフロンガ
ス、■は吸引装置、■は回収除去装置、■は冷却装置、
■はバイパスラインである。
第２図はウレタンフオーム製造工程を密閉系とし、発生
するフロン等ガス状物質を系外に排出せず、回収除去す
る方法の例を示す。■は発泡中のウレタンフオーム、■
は製造工程を密閉構造とするための覆い、■はウレタン
フオーム内から蒸発してくるフロンガス、■は吸引口、
■は回収除去装置である。
特許出願人 工業技術院長 飯場 幸三第 １
図FIG. 1 shows a method in which the space where volatile chemical substances are vaporized is made into a closed system or a quasi-closed system, and gaseous chemicals are removed or recovered in a closed system, using a urethane foam storage as an example. ■ is urethane foam, ■ is a stockyard with a sealed structure, ■ is fluorocarbon gas generated from inside the urethane foam, ■ is a suction device, ■ is a recovery and removal device, ■ is a cooling device,
■ is a bypass line. FIG. 2 shows an example of a method in which the urethane foam manufacturing process is conducted in a closed system, and gaseous substances such as fluorocarbons generated are collected and removed without being discharged outside the system. ■ is urethane foam during foaming, ■
■ is a cover to make the manufacturing process a sealed structure, ■ is a fluorocarbon gas that evaporates from inside the urethane foam, ■ is a suction port,
(2) is a collection and removal device. Patent applicant: Director of the Agency of Industrial Science and Technology Kozo Iba 1
figure
Claims (1)
擬密閉系とし、この密閉系に化学物質除去装置を設置し
、この除去装置に化学物質を含む気体を吸引もしくは送
入することにより、化学物質を処理あるいは回収するこ
とを特徴とする揮発性化学物質排出抑制方法By setting up a closed system or quasi-closed system where volatile chemical substances are generated in gaseous form, installing a chemical substance removal device in this closed system, and sucking or feeding the gas containing the chemical substance into this removal device, A volatile chemical substance emission control method characterized by processing or recovering chemical substances
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63025900A JPH01203023A (en) | 1988-02-05 | 1988-02-05 | Method for controlling exhaust of volatile chemical substance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63025900A JPH01203023A (en) | 1988-02-05 | 1988-02-05 | Method for controlling exhaust of volatile chemical substance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01203023A true JPH01203023A (en) | 1989-08-15 |
Family
ID=12178664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63025900A Pending JPH01203023A (en) | 1988-02-05 | 1988-02-05 | Method for controlling exhaust of volatile chemical substance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01203023A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0416202A (en) * | 1990-05-10 | 1992-01-21 | Sanyu Plant Service Kk | Method and apparatus for treatment of waste containing halogenated organic solvents |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4921388A (en) * | 1972-06-21 | 1974-02-25 | ||
| JPS5450474A (en) * | 1977-09-30 | 1979-04-20 | Ebara Corp | Method and apparatus for treating low-boiling component |
-
1988
- 1988-02-05 JP JP63025900A patent/JPH01203023A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4921388A (en) * | 1972-06-21 | 1974-02-25 | ||
| JPS5450474A (en) * | 1977-09-30 | 1979-04-20 | Ebara Corp | Method and apparatus for treating low-boiling component |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0416202A (en) * | 1990-05-10 | 1992-01-21 | Sanyu Plant Service Kk | Method and apparatus for treatment of waste containing halogenated organic solvents |
| JPH0636850B2 (en) * | 1990-05-10 | 1994-05-18 | 三友プラントサービス株式会社 | Method and apparatus for treating waste containing halogen-based organic solvent |
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