JPH10216506A - Superheated steam decomposition device - Google Patents
Superheated steam decomposition deviceInfo
- Publication number
- JPH10216506A JPH10216506A JP9026543A JP2654397A JPH10216506A JP H10216506 A JPH10216506 A JP H10216506A JP 9026543 A JP9026543 A JP 9026543A JP 2654397 A JP2654397 A JP 2654397A JP H10216506 A JPH10216506 A JP H10216506A
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- Prior art keywords
- cooling
- superheated steam
- cooling means
- gas
- heat transfer
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本願発明は、過熱蒸気分解に
用いる冷却装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling device used for cracking superheated steam.
【０００２】[0002]
【従来の技術】環境汚染物質等の難分解物質（例えば、
フロン、トリクロロエタン、クロロベンゼン等）を分解
して無害化する方法として、難分解物質と溶媒（例え
ば、水）との混合物を所定温度（通常の蒸発温度）より
高い温度（例えば、６５０℃）の過熱蒸気となし、その
状態を所定時間保持させることにより難分解物質を分解
する過熱蒸気分解法が採用されてきている。2. Description of the Related Art Refractory substances such as environmental pollutants (for example,
As a method for decomposing and detoxifying fluorocarbons, trichloroethane, chlorobenzene, etc., a mixture of a hardly decomposable substance and a solvent (for example, water) is heated to a temperature (for example, 650 ° C.) higher than a predetermined temperature (normal evaporation temperature). A superheated steam decomposition method of decomposing a hardly decomposable substance by forming a vapor and maintaining the state for a predetermined time has been adopted.
【０００３】ところで、上記過熱蒸気分解法によってフ
ロンを分解する場合、次のような加水分解が行われる。[0003] When CFCs are decomposed by the above superheated steam decomposition method, the following hydrolysis is carried out.
【０００４】 ＣＣｌ2Ｆ2＋２Ｈ2Ｏ→ＣＯ2＋２ＨＦ＋２ＨＣｌ 上記過熱蒸気分解法により分解された生成ガス（炭酸ガ
スＣＯ2、フッ化水素ＨＦ、塩化水素ＨＣｌ）は、過熱
状態（即ち、６５０℃）の高温ガスとなっているため、
これを冷却液化した後、無害化処理（即ち、アルカリに
よる中和処理）を施す必要がある。CCl 2 F 2 + 2H 2 O → CO 2 + 2HF + 2HCl The product gas (carbon dioxide CO 2 , hydrogen fluoride HF, hydrogen chloride HCl) decomposed by the above superheated steam decomposition method is in an overheated state (that is, 650 ° C.). Because of the high temperature gas of
After this is cooled and liquefied, it is necessary to perform a detoxification treatment (that is, a neutralization treatment with an alkali).
【０００５】[0005]
【発明が解決しようとする課題】ところが、過熱蒸気状
態（即ち、６５０℃）の生成ガスをそのまま冷却液化す
ると、その過程において、生成ガス中のフッ化水素ＨＦ
および塩化水素ＨＣｌが水溶液となると強酸性溶液とな
る。この強酸性溶液は、極めて高い腐食性を有している
ところから、ハステロイ、インコネル等の耐食性に優れ
た特殊金属を使用した冷却装置であっても短時間で腐食
が進行してしまい、使用不能に陥ってしまう。一方、高
い耐食性を示す物質にテフロン等の合成樹脂があるが、
これらは、耐熱性に問題があり、過熱蒸気状態（即ち、
６５０℃）の生成ガスの冷却用としては使用できないと
いう問題がある。However, when the product gas in a superheated vapor state (that is, 650 ° C.) is cooled and liquefied as it is, the hydrogen fluoride HF in the product gas is generated in the process.
When hydrogen chloride and HCl become an aqueous solution, it becomes a strongly acidic solution. Since this highly acidic solution has extremely high corrosiveness, even a cooling device using a special metal with excellent corrosion resistance, such as Hastelloy, Inconel, etc., can be corroded in a short time, making it unusable. It falls into. On the other hand, there is a synthetic resin such as Teflon as a material showing high corrosion resistance,
These have a problem in heat resistance and are in a superheated steam state (ie,
(650 ° C.) cannot be used for cooling the produced gas.
【０００６】本願発明は、上記の点に鑑みてなされたも
ので、過熱蒸気分解により生成されたガスを２段階で冷
却液化することにより、腐食性に十分耐えることのでき
る低コストの冷却装置を提供することを目的とするもの
である。The present invention has been made in view of the above points, and provides a low-cost cooling apparatus which can sufficiently withstand corrosiveness by liquefying a gas generated by superheated steam decomposition in two stages. It is intended to provide.
【０００７】[0007]
【課題を解決するための手段】本願発明の基本構成で
は、上記課題を解決するための手段として、難分解物質
を過熱蒸気分解する反応装置と、該反応装置の下流側に
設けられる冷却装置とを備えた過熱蒸気分解装置におい
て、前記冷却装置を、前記反応装置から供給される生成
ガスをガス状態を保持する所定温度まで１次冷却する第
１の冷却手段と、該第１の冷却手段により１次冷却され
た生成ガスを冷却液化する第２の冷却手段とによって構
成している。According to the basic structure of the present invention, as a means for solving the above-mentioned problems, there are provided a reactor for decomposing a hardly decomposable substance by superheated steam, and a cooling device provided downstream of the reactor. A first cooling means for primary cooling the cooling device to a predetermined temperature that maintains a gas state of the produced gas supplied from the reaction device, and the first cooling means. And second cooling means for liquefying the primary-cooled product gas.
【０００８】上記のように構成したことにより、第１の
冷却手段により高い腐食性を示さないガス状態のまま生
成ガスを所定温度まで冷却した後、第２の冷却手段によ
り生成ガスを冷却液化することができることとなり、第
１の冷却手段としては腐食性を考慮することなく耐熱性
のみを考慮する構成のものが使用できるとともに、第２
の冷却手段としては耐熱性をあまり考慮することなく耐
食性に優れた構成のものが使用できる。[0008] With the above configuration, the produced gas is cooled down to a predetermined temperature by the first cooling means in a gas state which does not show high corrosivity, and then the produced gas is cooled and liquefied by the second cooling means. As the first cooling means, it is possible to use a cooling means having a structure in which only heat resistance is considered without considering corrosiveness, and a second cooling means can be used.
As a cooling means, a cooling means having excellent corrosion resistance can be used without giving much consideration to heat resistance.
【０００９】本願発明の基本構成において、前記第１の
冷却手段を、前記反応装置から供給される生成ガスが流
通するとともに耐熱性に優れた材料からなる伝熱管と、
該伝熱管の外周側にあって冷媒が流通する胴体とによっ
て構成した場合、耐食性をあまり考慮することなく耐熱
性を主に考慮した伝熱管を用いて高温の生成ガスを所定
温度まで冷却できることとなり、装置の低コスト化に寄
与する。In the basic structure of the present invention, the first cooling means includes: a heat transfer tube made of a material having excellent heat resistance, through which a product gas supplied from the reactor flows.
In the case where the heat transfer tube is constituted by a body on the outer peripheral side of the heat transfer tube and through which a refrigerant flows, it is possible to cool a high-temperature generated gas to a predetermined temperature by using a heat transfer tube mainly considering heat resistance without much considering corrosion resistance. This contributes to a reduction in the cost of the device.
【００１０】また、前記第２の冷却手段を、前記第１の
冷却手段から供給された生成ガスが流通するとともに耐
食性に優れた合成樹脂材料からなる伝熱管と、該伝熱管
の外周側にあって冷媒が流通する容器とによって構成し
た場合、耐熱性をあまり考慮することなく耐食性を主に
考慮した低コストの合成樹脂材料からなる伝熱管を用い
て生成ガスの冷却液化が行えることとなり、装置の低コ
スト化に寄与する。[0010] The second cooling means may include a heat transfer tube made of a synthetic resin material having excellent corrosion resistance and a flow of product gas supplied from the first cooling means, and an outer peripheral side of the heat transfer tube. In the case where the apparatus is constituted by a container through which a refrigerant flows, it is possible to perform cooling and liquefaction of the generated gas using a heat transfer tube made of a low-cost synthetic resin material mainly considering corrosion resistance without considering heat resistance much. Contributes to cost reduction.
【００１１】[0011]
【発明の実施の形態】以下、添付の図面を参照して、本
願発明の幾つかの好適な実施の形態について詳述する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Some preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
【００１２】第１の実施の形態 図１および図２には、本願発明の第１の実施の形態にか
かる過熱蒸気分解装置が示されている。First Embodiment FIGS. 1 and 2 show a superheated steam cracking apparatus according to a first embodiment of the present invention.
【００１３】この過熱蒸気分解装置は、図１に示すよう
に、被分解物質（例えば、フロンＸ）を貯蔵するタンク
１から流量調整弁２および流量計３を介して供給される
被分解物質（例えば、フロンＸ）と溶媒タンク４からポ
ンプ５により供給される溶媒（例えば、水Ｗ）とを混合
しつつ所定温度（例えば、４００℃）に加熱して蒸気化
する混合蒸気発生装置６と、該混合蒸気発生装置６によ
り得られた混合蒸気をさらに高温（例えば、６５０℃）
に加熱して過熱蒸気となす過熱蒸気発生装置７と、該過
熱蒸気発生装置７により得られた過熱蒸気をその状態で
所定時間だけ保持することにより被分解物質（例えば、
フロンＸ）を加水分解する反応装置８と、該反応装置８
により得られた生成ガスＧ（例えば、過熱水蒸気、炭酸
ガスＣＯ2、フッ化水素ＨＦ、塩化水素ＨＣｌの混合
物）を冷却液化する冷却装置９と、該冷却装置９により
冷却されて得られた溶液Ｌから気液を分離する（即ち、
フッ酸と塩酸との溶液から炭酸ガスＣＯ2、フッ化水素
ＨＦ、塩化水素ＨＣｌを分離する）気液分離装置１０
と、該気液分離装置１０からでる気体（即ち、炭酸ガス
ＣＯ2、フッ化水素ＨＦ、塩化水素ＨＣｌ）をアルカリ
水溶液のシャワーにより中和除去する除去装置１１とを
備えて構成されている。符号１２，１３，１４は加熱用
のヒータである。As shown in FIG. 1, the superheated steam decomposition apparatus supplies a substance to be decomposed (for example, a substance to be decomposed (eg, Freon X) supplied from a tank 1 through a flow control valve 2 and a flow meter 3). For example, a mixed steam generator 6 that mixes a fluorocarbon X) and a solvent (for example, water W) supplied from a solvent tank 4 by a pump 5 and heats the mixture to a predetermined temperature (for example, 400 ° C.) to vaporize the mixture. The mixed steam obtained by the mixed steam generator 6 is further heated to a higher temperature (for example, 650 ° C.).
A superheated steam generator 7 that heats the superheated steam into superheated steam, and the superheated steam obtained by the superheated steam generator 7 is kept in that state for a predetermined period of time to decompose the substance (for example,
A reactor 8 for hydrolyzing CFCs X);
Cooling device 9 for cooling and liquefying product gas G (for example, a mixture of superheated steam, carbon dioxide gas CO 2 , hydrogen fluoride HF, and hydrogen chloride HCl) obtained by the above, and a solution obtained by cooling by cooling device 9 Separating gas and liquid from L (ie,
Gas-liquid separation device 10 for separating carbon dioxide gas CO 2 , hydrogen fluoride HF and hydrogen chloride HCl from a solution of hydrofluoric acid and hydrochloric acid)
And a removing device 11 for neutralizing and removing gases (that is, carbon dioxide gas CO 2 , hydrogen fluoride HF, and hydrogen chloride HCl) from the gas-liquid separation device 10 by showering with an alkaline aqueous solution. Reference numerals 12, 13, and 14 denote heaters for heating.
【００１４】しかして、前記冷却装置９は、前記反応装
置８から供給される生成ガスＧをガス状態を保持する所
定温度（例えば、１８０℃）まで１次冷却する第１の冷
却手段９Ａと、該第１の冷却手段９Ａにより１次冷却さ
れた生成ガスＧを冷却液化する第２の冷却手段９Ｂとに
よって構成されている。Thus, the cooling device 9 comprises a first cooling means 9A for primary cooling the produced gas G supplied from the reaction device 8 to a predetermined temperature (for example, 180 ° C.) for maintaining the gaseous state; And a second cooling means 9B for cooling and liquefying the product gas G which has been primarily cooled by the first cooling means 9A.
【００１５】前記第１の冷却手段９Ａは、円筒状の胴体
１５と該胴体１５内に平行に配設された複数の伝熱管１
６，１６・・とにより構成されており、前記胴体１５内
における両端には、反応装置８から供給される生成ガス
Ｇを伝熱管１６，１６・・に分配するための入口チャン
バ１７と、前記伝熱管１６，１６・・から出る冷却され
た生成ガスＧを集合させる出口チャンバ１８が形成され
ている（図２参照）。The first cooling means 9A includes a cylindrical body 15 and a plurality of heat transfer tubes 1 arranged in parallel in the body 15.
, And an inlet chamber 17 for distributing the generated gas G supplied from the reactor 8 to the heat transfer tubes 16, 16, at both ends in the body 15. An outlet chamber 18 for collecting the cooled product gas G from the heat transfer tubes 16 is formed (see FIG. 2).
【００１６】そして、前記胴体１５内には、ファン１９
により圧送され、加熱手段２０により所定温度（例え
ば、１５０℃）に加熱され、冷媒として作用する空気
（換言すれば、温風）Ａが供給されることとなってお
り、該温風Ａと前記伝熱管１６，１６・・内を流通する
生成ガスＧ（例えば、６５０℃の高温）との間で熱交換
することにより、生成ガスＧがガス状態を保持する所定
温度（例えば、１８０℃）にまで冷却されることとなっ
ている。A fan 19 is provided in the body 15.
And heated by the heating means 20 to a predetermined temperature (for example, 150 ° C.), and air (in other words, hot air) A acting as a refrigerant is supplied. By exchanging heat with the generated gas G (for example, a high temperature of 650 ° C.) flowing through the heat transfer tubes 16, 16,..., The generated gas G reaches a predetermined temperature (for example, 180 ° C.) at which the generated gas G maintains a gas state. It is to be cooled down.
【００１７】前記加熱手段２０は、電気ヒータ等からな
っており、図示しない制御手段により供給される温風Ａ
の温度を温度センサー２１により検出し、温風Ａの温度
が１５０℃となるように通電量制御されている。このよ
うにすると、図３のタイムチャートに示すように、生成
ガスＧの温度は、第１の冷却手段９Ａにおける入口チャ
ンバ１７（即ち、時間Ｔ1）では６５０℃であったもの
が、第１の冷却手段９Ａにおける出口チャンバ１８（即
ち、時間Ｔ2）ではガス状態を保持したまま１８０℃に
まで冷却される。つまり、冷媒である温風Ａの温度を制
御することにより、生成ガスＧが液化されるまで冷却さ
れることがないようになっているのである。なお、胴体
１５内に供給された温風Ａは生成ガスＧとの熱交換によ
り加熱されて高温となり、排出管２２から空気中へ放出
される。The heating means 20 comprises an electric heater or the like, and is supplied with hot air A supplied by a control means (not shown).
Is detected by the temperature sensor 21, and the amount of electricity is controlled so that the temperature of the hot air A becomes 150 ° C. In this way, as shown in the time chart of FIG. 3, the temperature of the generated gas G is 650 ° C. in the inlet chamber 17 (that is, time T 1 ) of the first cooling means 9A, but the first gas is changed to the first temperature. In the outlet chamber 18 (that is, time T 2 ) of the cooling means 9A, the gas is cooled to 180 ° C. while maintaining the gas state. That is, by controlling the temperature of the warm air A, which is the refrigerant, the generated gas G is not cooled until it is liquefied. The hot air A supplied into the body 15 is heated by heat exchange with the generated gas G to become high temperature, and is discharged from the discharge pipe 22 into the air.
【００１８】上記したように、第１の冷却手段９Ａにお
いては、伝熱管１６，１６・・内を流通する生成ガスＧ
はガス状態のままとされているため、腐食性が極めて低
く抑えられることとなる。従って、伝熱管１６，１６・
・の材質選定においては、高温（例えば、６５０℃）に
耐え得るものであれば、腐食性についてはあまり考慮す
る必要がなくなる。つまり、伝熱管１６，１６・・の材
質としてはステンレス等の比較的低コストなものを選定
できることとなるのである。なお、耐食性をも考慮して
セラミック製の伝熱管を使用するのが望ましい。As described above, in the first cooling means 9A, the generated gas G flowing through the heat transfer tubes 16, 16,...
Is kept in a gaseous state, so that the corrosiveness is extremely low. Therefore, the heat transfer tubes 16, 16,.
In the selection of the material, if the material can withstand high temperature (for example, 650 ° C.), it is not necessary to consider much about the corrosiveness. That is, a relatively low-cost material such as stainless steel can be selected as the material of the heat transfer tubes 16. It is desirable to use a ceramic heat transfer tube in consideration of corrosion resistance.
【００１９】一方、第２の冷却手段９Ｂは、前記第１の
冷却手段９Ａの胴体１５における出口チャンバ１８から
供給された生成ガスＧが流通するとともに耐食性に優れ
た合成樹脂材料（例えば、テフロン等）からなる伝熱管
２３と、該伝熱管２３の外周側にあって冷媒（例えば、
水）が流通する容器２４とによって構成されており（図
２参照）、該水と前記伝熱管２３内を流通する生成ガス
Ｇ（例えば、１８０℃）との間で熱交換することによ
り、生成ガスＧが常温（例えば、２０℃）にまで冷却さ
れて液化されることとなっている。この冷却過程におい
ては、生成ガスＧ中のフッ化水素ＨＦおよび塩化水素Ｈ
Ｃｌが液化された水に溶解して強酸性水溶液Ｌが生ずる
が、耐食性に優れた合成樹脂製の伝熱管２３内を流れる
こととなっているので、腐食するおそれはない。しか
も、第２の冷却手段９Ｂを流れる生成ガスＧおよび強酸
性水溶液Ｌの温度はあまり高くない（即ち、２０℃〜１
８０℃）ため、合成樹脂製の伝熱管２３で十分に耐え得
る。On the other hand, the second cooling means 9B is provided with a synthetic resin material (for example, Teflon or the like) having a high corrosion resistance while allowing the generated gas G supplied from the outlet chamber 18 of the body 15 of the first cooling means 9A to flow therethrough. ), And a refrigerant (for example,
(See FIG. 2), and heat is exchanged between the water and a generated gas G (for example, 180 ° C.) flowing through the heat transfer tube 23 to generate a gas. The gas G is cooled to room temperature (for example, 20 ° C.) and liquefied. In this cooling process, hydrogen fluoride HF and hydrogen chloride H
Although the Cl is dissolved in the liquefied water to form a strongly acidic aqueous solution L, it flows through the heat transfer tube 23 made of a synthetic resin having excellent corrosion resistance, so there is no possibility of corrosion. Moreover, the temperatures of the generated gas G and the strongly acidic aqueous solution L flowing through the second cooling means 9B are not so high (that is, 20 ° C to 1 ° C).
80 ° C.), so that the heat transfer tube 23 made of synthetic resin can withstand sufficiently.
【００２０】上記のように本実施の形態においては、第
１の冷却手段９Ａにより高い腐食性を示さないガス状態
のまま生成ガスＧを所定温度（例えば、１８０℃）まで
冷却した後、第２の冷却手段９Ｂにより生成ガスＧを冷
却液化することができることとなり、第１の冷却手段９
Ａとしては腐食性を考慮することなく耐熱性のみを考慮
する構成のもの（例えば、ステンレス、セラミック等か
らなる伝熱管１６，１６・・を有するもの）が使用でき
るとともに、第２の冷却手段９Ｂとしては耐熱性をあま
り考慮することなく耐食性に優れた構成のもの（例え
ば、テフロン等の合成樹脂からなる伝熱管２３を有する
もの）が使用できる。従って、加熱蒸気分解装置の低コ
スト化に大いに寄与することとなる。As described above, in the present embodiment, the product gas G is cooled to a predetermined temperature (for example, 180 ° C.) by the first cooling means 9A in a gas state that does not show high corrosiveness, and then the second gas is cooled to the second temperature. The produced gas G can be cooled and liquefied by the cooling means 9B of the first cooling means 9B.
A having a configuration in which only heat resistance is considered without consideration of corrosiveness (for example, one having heat transfer tubes 16, 16,... Made of stainless steel, ceramic, or the like) can be used, and the second cooling means 9B A material having excellent corrosion resistance (for example, having a heat transfer tube 23 made of a synthetic resin such as Teflon) can be used without considering heat resistance. Therefore, it greatly contributes to the cost reduction of the heating steam decomposition apparatus.
【００２１】第２の実施の形態 図４には、本願発明の第２の実施の形態にかかる過熱蒸
気分解装置における冷却装置が示されている。Second Embodiment FIG. 4 shows a cooling device in a superheated steam cracking device according to a second embodiment of the present invention.
【００２２】この場合、第１の冷却手段９Ａにおける冷
媒としてオイルＯが採用されている。従って、前記オイ
ルＯを貯溜するオイルタンク２５、ファン１９に代わる
ポンプ２６、排出管２２に代わる還流オイルパイプ２
７、還流オイルＯを冷却する冷却器２８、オイルを還流
させるためのポンプ２９が付設されている。この場合、
冷媒として温度制御が容易なオイルＯを使用しているた
め、第１の冷却手段９Ａにおける冷却効率が向上するこ
ととなる。その他の構成および作用効果は第１の実施の
形態におけると同様なので説明を省略する。In this case, oil O is employed as a refrigerant in the first cooling means 9A. Accordingly, an oil tank 25 for storing the oil O, a pump 26 in place of the fan 19, and a return oil pipe 2 in place of the discharge pipe 22
7. A cooler 28 for cooling the return oil O and a pump 29 for returning the oil are provided. in this case,
Since the oil O whose temperature can be easily controlled is used as the refrigerant, the cooling efficiency of the first cooling unit 9A is improved. The other configuration and operation and effect are the same as those in the first embodiment, and the description is omitted.
【００２３】上記実施の形態においては、フロンを分解
する場合について説明したが、その他の難分解物質（例
えば、トリクロロエタン、クロロベンゼン等）を分解す
る場合にも本願発明の過熱蒸気分解装置は適用可能であ
る。In the above embodiment, the case of decomposing CFCs has been described. However, the superheated steam decomposition apparatus of the present invention is applicable to the case of decomposing other hardly decomposable substances (for example, trichloroethane, chlorobenzene, etc.). is there.
【００２４】[0024]
【発明の効果】本願発明によれば、難分解物質を過熱蒸
気分解する反応装置と、該反応装置の下流側に設けられ
る冷却装置とを備えた過熱蒸気分解装置において、前記
冷却装置を、前記反応装置から供給される生成ガスをガ
ス状態を保持する所定温度まで１次冷却する第１の冷却
手段と、該第１の冷却手段により１次冷却された生成ガ
スを冷却液化する第２の冷却手段とによって構成して、
第１の冷却手段により高い腐食性を示さないガス状態の
まま生成ガスを所定温度まで冷却した後、第２の冷却手
段により生成ガスを冷却液化することができるようにし
たので、第１の冷却手段としては腐食性を考慮すること
なく耐熱性のみを考慮する構成のものが使用できるとと
もに、第２の冷却手段としては耐熱性をあまり考慮する
ことなく耐食性に優れた構成のものが使用できることと
なり、難分解物質の過熱蒸気分解を低コストな装置で容
易に行えるという優れた効果が得られる。According to the present invention, there is provided a superheated steam decomposer comprising a reactor for decomposing a hardly decomposable substance by superheated steam, and a cooling device provided downstream of the reactor. First cooling means for primary cooling the product gas supplied from the reactor to a predetermined temperature for maintaining a gas state, and second cooling for cooling and liquefying the product gas primary cooled by the first cooling means By means of
After the produced gas is cooled to a predetermined temperature in a gas state that does not show high corrosiveness by the first cooling means, the produced gas can be cooled and liquefied by the second cooling means. As a means, a structure having only the heat resistance without considering the corrosiveness can be used, and as the second cooling means, a structure with excellent corrosion resistance can be used without much consideration of the heat resistance. An excellent effect that superheated steam decomposition of a hardly decomposable substance can be easily performed with a low-cost device can be obtained.
【図１】本願発明の第１の実施の形態にかかる過熱蒸気
分解装置の概略構成を示すシステム図である。FIG. 1 is a system diagram showing a schematic configuration of a superheated steam cracking apparatus according to a first embodiment of the present invention.
【図２】本願発明の第１の実施の形態にかかる過熱蒸気
分解装置における冷却装置の構成を示すシステム図であ
る。FIG. 2 is a system diagram showing a configuration of a cooling device in the superheated steam cracking device according to the first embodiment of the present invention.
【図３】本願発明の第１の実施の形態にかかる過熱蒸気
分解装置における冷却装置を通過する生成ガスの温度変
化を示すタイムチャートである。FIG. 3 is a time chart showing a temperature change of a product gas passing through a cooling device in the superheated steam cracking device according to the first embodiment of the present invention.
【図４】本願発明の第２の実施の形態にかかる過熱蒸気
分解装置における冷却装置の構成を示すシステム図であ
る。FIG. 4 is a system diagram showing a configuration of a cooling device in a superheated steam cracking device according to a second embodiment of the present invention.
８は反応装置、９は冷却装置、９Ａは第１の冷却手段、
９Ｂは第２の冷却手段、１６は伝熱管、１５は胴体、２
３は伝熱管、２４は容器、Ｘは難分解物質（フロン）、
Ｗは溶媒（水）。8 is a reaction device, 9 is a cooling device, 9A is a first cooling means,
9B is a second cooling means, 16 is a heat transfer tube, 15 is a body, 2
3 is a heat transfer tube, 24 is a container, X is a hardly decomposable substance (fluorocarbon),
W is a solvent (water).
Claims (3)
と、該反応装置の下流側に設けられる冷却装置とを備え
た過熱蒸気分解装置であって、前記冷却装置を、前記反
応装置から供給される生成ガスをガス状態を保持する所
定温度まで１次冷却する第１の冷却手段と、該第１の冷
却手段により１次冷却された生成ガスを冷却液化する第
２の冷却手段とによって構成したことを特徴とする過熱
蒸気分解装置。1. A superheated steam decomposer comprising a reactor for decomposing a hardly decomposable substance by superheated steam and a cooling device provided downstream of the reactor, wherein the cooling device is supplied from the reactor. A first cooling means for primary cooling the produced gas to a predetermined temperature which maintains a gas state, and a second cooling means for cooling and liquefying the produced gas primarily cooled by the first cooling means. A superheated steam cracker characterized by the following.
ら供給される生成ガスが流通するとともに耐熱性に優れ
た材料からなる伝熱管と、該伝熱管の外周側にあって冷
媒が流通する胴体とによって構成されていることを特徴
とする前記請求項１記載の過熱蒸気分解装置。2. The first cooling means is provided with a heat transfer tube made of a material having excellent heat resistance as well as a flow of a product gas supplied from the reactor, and a refrigerant flowing on the outer peripheral side of the heat transfer tube. The superheated steam cracking apparatus according to claim 1, wherein the superheated steam cracking apparatus is constituted by:
手段から供給された生成ガスが流通するとともに耐食性
に優れた合成樹脂材料からなる伝熱管と、該伝熱管の外
周側にあって冷媒が流通する容器とによって構成されて
いることを特徴とする前記請求項１および請求項２のい
ずれか一項記載の過熱蒸気分解装置。3. The heat transfer pipe made of a synthetic resin material having excellent corrosion resistance while allowing the generated gas supplied from the first cooling means to flow, and a second cooling means provided on an outer peripheral side of the heat transfer pipe. The superheated steam cracking device according to any one of claims 1 and 2, further comprising a container through which the refrigerant flows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02654397A JP3616702B2 (en) | 1997-02-10 | 1997-02-10 | Superheated steam cracker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02654397A JP3616702B2 (en) | 1997-02-10 | 1997-02-10 | Superheated steam cracker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10216506A true JPH10216506A (en) | 1998-08-18 |
| JP3616702B2 JP3616702B2 (en) | 2005-02-02 |
Family
ID=12196428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02654397A Expired - Lifetime JP3616702B2 (en) | 1997-02-10 | 1997-02-10 | Superheated steam cracker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3616702B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001096147A (en) * | 1999-09-29 | 2001-04-10 | Oei Kaihatsu Kogyo Kk | Method and apparatus for decomposition treatment of hardly decomposable substance |
| JP2001259413A (en) * | 2000-03-22 | 2001-09-25 | Oei Kaihatsu Kogyo Kk | Decomposing method of hardly decomposable material and device therefor |
| JP2004518102A (en) * | 2000-05-05 | 2004-06-17 | ダウ グローバル テクノロジーズ インコーポレイティド | Apparatus and method for quenching hot gas |
-
1997
- 1997-02-10 JP JP02654397A patent/JP3616702B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001096147A (en) * | 1999-09-29 | 2001-04-10 | Oei Kaihatsu Kogyo Kk | Method and apparatus for decomposition treatment of hardly decomposable substance |
| JP2001259413A (en) * | 2000-03-22 | 2001-09-25 | Oei Kaihatsu Kogyo Kk | Decomposing method of hardly decomposable material and device therefor |
| JP2004518102A (en) * | 2000-05-05 | 2004-06-17 | ダウ グローバル テクノロジーズ インコーポレイティド | Apparatus and method for quenching hot gas |
| JP4771393B2 (en) * | 2000-05-05 | 2011-09-14 | ダウ グローバル テクノロジーズ エルエルシー | Apparatus and method for hot gas quenching |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3616702B2 (en) | 2005-02-02 |
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