JP3044279B2 - Simple gas adsorption recovery method - Google Patents
Simple gas adsorption recovery methodInfo
- Publication number
- JP3044279B2 JP3044279B2 JP9127949A JP12794997A JP3044279B2 JP 3044279 B2 JP3044279 B2 JP 3044279B2 JP 9127949 A JP9127949 A JP 9127949A JP 12794997 A JP12794997 A JP 12794997A JP 3044279 B2 JP3044279 B2 JP 3044279B2
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- JP
- Japan
- Prior art keywords
- gas
- adsorbent layer
- adsorbent
- microwave
- adsorption
- 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.)
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Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガス中に含まれる
吸着性成分の分離回収方法に関するものである。The present invention relates to a method for separating and recovering adsorbable components contained in a gas.
【０００２】[0002]
【従来の技術】従来、廃ガス中の有機成分や炭化水素ガ
ス中の水分等は吸着剤を使って分離されており、使用後
の吸着剤は被吸着物質を加熱脱離して再使用されてい
る。このガス脱離法において、吸着剤を再生する際の加
熱は外部から吸着剤層を加熱する方法、あるいは、水蒸
気を吸着剤層に吹き込む方法等で行われている。しか
し、前者は熱効率が悪く、後者はその廃水処理のため装
置が大きくなり、ガス分離装置の設置場所等に問題が生
じるなど少量のガス分離でも経費を要する。それゆえ、
小規模のクリーニング工場、印刷所、機械工場等から排
出される有機溶剤蒸気等の分離回収はコスト面で困難で
ある。また、種子や穀物の薫蒸等に使う臭化メチルも小
規模使用が多いとともに、発生現場は野外である場合が
あり、回収装置の移動の不便さから、使用後の臭化メチ
ルの回収は困難である。このように、小規模排出源から
の揮発性有機化合物（以下、ＶＯＣと略記する）等の汚
染物質の分離は難しく、そこから排出されるガス中の汚
染物質の回収のための簡易な分離回収方法が強く望まれ
ている。マイクロ波を脱離に用いた特許はこれまでにも
ある。しかし、吸着剤として活性炭を用いた場合、吸着
剤層で火花が飛ぶなどで分解反応が起こり使用に著しい
困難が伴う。また、大規模な装置でのマイクロ波使用で
あるため、マイクロ波照射装置は特注となりコスト面で
問題がある。2. Description of the Related Art Conventionally, organic components in waste gas and water and the like in hydrocarbon gas have been separated using an adsorbent, and the used adsorbent is reused by desorbing a substance to be adsorbed by heating. I have. In this gas desorption method, the heating at the time of regenerating the adsorbent is performed by a method of externally heating the adsorbent layer, a method of blowing steam into the adsorbent layer, or the like. However, the former has poor thermal efficiency, and the latter requires a large device for wastewater treatment, and costs are required even for a small amount of gas separation, such as a problem in the installation location of the gas separation device. therefore,
It is difficult to separate and collect organic solvent vapors and the like discharged from small-scale cleaning factories, printing shops, machine factories, and the like. Methyl bromide, which is used for fumigation of seeds and grains, is often used on a small scale, and its generation site may be outdoors. Have difficulty. As described above, it is difficult to separate contaminants such as volatile organic compounds (hereinafter abbreviated as VOCs) from small-scale discharge sources, and simple separation and collection for collecting pollutants in gas discharged therefrom is difficult. A method is strongly desired. There are patents that use microwaves for desorption. However, when activated carbon is used as an adsorbent, a decomposition reaction occurs due to sparks and the like in the adsorbent layer, and there is a remarkable difficulty in use. In addition, since microwaves are used in a large-scale apparatus, a microwave irradiation apparatus is custom-made and has a problem in cost.
【０００３】[0003]
【発明が解決しようとする課題】本発明者らは、ガス中
の吸着性成分を吸着した吸着剤から該吸着性成分を脱離
させる際の加熱効率を従来より向上させ、それによって
吸着ガス回収装置全体を小型化し、小規模排出源でも使
用できる分離方法を提供することをその課題とする。DISCLOSURE OF THE INVENTION The present inventors have improved the heating efficiency when desorbing an adsorbable component from an adsorbent that has adsorbed the adsorbable component in a gas, thereby improving the recovery of adsorbed gas. It is an object of the present invention to provide a separation method that can reduce the size of the entire apparatus and can be used with a small-scale discharge source.
【０００４】[0004]
【課題を解決するための手段】本発明らは、前記課題を
解決すべく鋭意研究を重ねた結果、本発明を完成するに
至った。すなわち、本発明によれば、吸着性成分を含む
ガスをマイクロ波吸収性を有する吸着剤層に導入して該
吸着性成分を吸着剤に吸着させる第１工程と、該ガスの
導入を中止あるいは流量を著しく小さくし、該吸着剤層
をマイクロ波加熱して該吸着剤層に吸着した吸着物を脱
離させる第２工程と、該脱離ガスを冷却液化する第３工
程とからなり、前記吸着剤は外表面を非電導物質で覆う
か又は非電導物質を混合した活性炭からなることを特徴
とする簡易ガス吸着回収方法が提供される。Means for Solving the Problems The present inventors have made intensive studies to solve the above problems, and as a result, completed the present invention. That is, according to the present invention, a first step of introducing a gas containing an adsorptive component into an adsorbent layer having a microwave absorbing property to adsorb the adsorptive component to the adsorbent, and stopping the introduction of the gas or A flow rate is significantly reduced, a second step of microwave-heating the adsorbent layer to desorb adsorbed substances adsorbed to the adsorbent layer, and a third step of cooling and liquefying the desorbed gas , Adsorbent covers outer surface with non-conductive material
Or a simple gas adsorption / recovery method characterized by comprising activated carbon mixed with a non-conductive substance .
【０００５】[0005]
【発明の実施の形態】本発明の方法は、水、アンモニ
ア、硫化水素、ＶＯＣ（ベンゼン、トルエン、フロン、
臭化メチル等）等の吸着性成分を含むガスからそれらの
吸着性成分（分離目的物）を分離する方法であり、小規
模排出源で吸着性ガスの吸着からその吸着ガスの回収ま
で行うことを特徴にしている。本発明の方法は、吸着性
成分を含むガスをマイクロ波吸収性を有する吸着剤層に
導入して該吸着性成分を吸着剤に吸着させる第１工程
と、該ガスの導入を中止あるいは流量を著しく小さく
し、該吸着剤層をマイクロ波加熱して該吸着剤層に吸着
した吸着物を脱離させる第２工程と、該脱離ガスを冷却
液化する第３工程とからなる簡易ガス吸着回収方法であ
る。第１工程では、第２工程のための特殊な吸着剤層を
使用する他は通常の吸着方法である。第２工程では、マ
イクロ波吸収性あるいは高周波誘電加熱性あるいは高周
波誘導加熱性を有する吸着剤を表面、内部とも均一温度
になるように形状等に工夫を凝らし、マイクロ波照射を
行い、目的温度に瞬時に上昇させ、その温度で吸着成分
の脱離を図る。この工程では、ガスの導入を中止あるい
は流量を著しく小さくしてあるため脱離ガスは１００％
に近い濃度となっている。第３工程では、冷却コイルに
て冷却液化を行うが、第２工程で１００％近い高濃度の
脱離ガスが得られているため、簡単な冷却装置でよい。DETAILED DESCRIPTION OF THE INVENTION The method of the present invention comprises water, ammonia, hydrogen sulfide, VOC (benzene, toluene, chlorofluorocarbon,
This is a method to separate the adsorptive components (objects to be separated) from the gas containing the adsorptive components such as methyl bromide, etc., from the adsorption of the adsorptive gas to the recovery of the adsorptive gas with a small-scale emission source. It is characterized by. The method of the present invention comprises a first step of introducing a gas containing an adsorptive component into an adsorbent layer having a microwave absorbing property to adsorb the adsorptive component to the adsorbent, and stopping the introduction of the gas or reducing the flow rate. A simple gas adsorption / recovery method comprising a second step of significantly reducing the size of the adsorbent layer and desorbing the adsorbed substance adsorbed on the adsorbent layer by microwave heating, and a third step of cooling and liquefying the desorbed gas. Is the way. The first step is a normal adsorption method except that a special adsorbent layer for the second step is used. In the second step, the adsorbent having a microwave absorbing property, a high frequency dielectric heating property or a high frequency induction heating property is devised into a shape or the like so that the surface and the inside have a uniform temperature, and microwave irradiation is performed. The temperature is raised instantaneously to the target temperature, and the adsorbed component is desorbed at that temperature. In this step, the introduction of the gas was stopped or the flow rate was significantly reduced, so that the desorbed gas was 100%
The concentration is close to In the third step, cooling liquefaction is performed by a cooling coil. However, since a high-concentration desorbed gas of about 100% is obtained in the second step, a simple cooling device may be used.
【０００６】次に、本発明をマイクロ波照射方式に基づ
いて全工程について述べる。図１にマイクロ波照射型の
吸着回収装置の説明構造図を示す。図１において、１は
マイクロ波照射ボックス、２は吸着筒、３は冷却ボック
ス、４は冷却コイル、５は回収液受器、６は送風機、７
は切り替えバルブを示す。マイクロ波照射ボックス１
は、周波数２．４５ＧＨｚあるいは５．８ＧＨｚあるい
は２２．１２５ＧＨｚで、出力３００〜５０００Ｗの電
波を照射できるもので、内容積１０〜１０００リットル
のものである。家庭用電子レンジを若干改造したもので
も良い。吸着筒２は、マイクロ波透過性で耐熱温度３０
０℃以上の材料で作成された筒体に、後述する吸着剤を
充填したもので、内容積１〜１０００リットルのもので
ある。筒体の形状は、入口、出口以外にガスが漏れない
構造であるなら、どのような形状であっても良い。冷却
ボックス３は、内容積が最低１０リットルのもので、温
度調節範囲−５０〜室温、調節精度±５℃以下のもので
ある。冷却方式は、空気漕、液漕方式どちらでも良い。
液漕方式の場合は、次に述べる冷却コイルと回収液受器
は密着した構造で液漕内液が受器に浸透しないものであ
る。家庭用冷凍庫を若干改造したものでも良い。冷却コ
イル４は、熱伝導性が良く腐食性のない材料で作られた
パイプあるいはそれに類するもので熱伝達が良い構造と
したものである。回収液受器５は、回収液による腐食性
のない材料で作られた容器で、冷却コイルに連結してい
る。回収終了後の蒸発拡散を防ぐために密閉するふたが
必要である。室温で高い蒸気圧を示す回収液の場合に
は、耐圧構造になっている。送風機６は排出源から吸着
剤層にガスを導入するもので、第１工程では吸着剤層の
空筒線速度５０ｃｍ／ｓ付近以下で送風される。第２工
程では送風を中止するか、著しく減少させた送風量で脱
離ガスが逆流しない程度に操作する。切り替えバルブ７
は、第１工程ではクリーンなガスを排出源に戻すか、空
気中に放出し、第２工程では脱離ガスを第３工程に導入
するための切り替えバルブである。操作手順は以下のよ
うになる。マイクロ波を照射しない状態で送風機６より
排ガスを吸着筒２に導入しその吸着剤層に吸着させる
（第１工程）。吸着は排ガスにより冷却され室温付近で
行われる。吸着性成分が吸着した後のクリーンなガスは
切り替えバルブ７によって排出源あるいは空気中に放出
する。吸着剤に吸着性成分が充分吸着した時点（破過に
達した）で送風機６の運転を中止するか、最小運転に切
り替えると同時にマイクロ波を２〜１５分程度照射する
（第２工程）。マイクロ波のパワーは、吸着剤層内温度
が吸着性成分によって決まる脱離温度を越えないように
調節する（通常は約１５０℃）。１００％近い濃度の脱
離したガスは冷却ボックス３に導き冷却し、液として回
収する（第３工程）。Next, the entire process of the present invention will be described based on a microwave irradiation method. FIG. 1 shows an explanatory structural view of a microwave irradiation type adsorption and recovery apparatus. In FIG. 1, 1 is a microwave irradiation box, 2 is an adsorption cylinder, 3 is a cooling box, 4 is a cooling coil, 5 is a collected liquid receiver, 6 is a blower, 7
Indicates a switching valve. Microwave irradiation box 1
Has a frequency of 2.45 GHz or 5.8 GHz or 22.125 GHz, and can emit radio waves with an output of 300 to 5000 W, and has an internal volume of 10 to 1000 liters. A slightly modified home microwave oven may be used. The adsorption cylinder 2 is microwave permeable and has a heat resistant temperature of 30.
A cylinder made of a material of 0 ° C. or higher is filled with an adsorbent described later, and has an internal volume of 1 to 1000 liters. The cylindrical body may have any shape as long as it has a structure in which gas does not leak except at the inlet and the outlet. The cooling box 3 has an internal volume of at least 10 liters, a temperature control range of −50 to room temperature, and a control accuracy of ± 5 ° C. or less. The cooling method may be either an air tank or a liquid tank method.
In the case of the liquid tank system, the cooling coil described below and the collected liquid receiver are in close contact with each other, and the liquid in the liquid tank does not penetrate into the receiver. A slightly modified home freezer may be used. The cooling coil 4 is made of a pipe made of a material having good thermal conductivity and non-corrosiveness or the like, and has a good heat transfer structure. The collection liquid receiver 5 is a container made of a material that is not corroded by the collection liquid, and is connected to the cooling coil. A closed lid is required to prevent evaporation and diffusion after completion of collection. In the case of a recovered liquid having a high vapor pressure at room temperature, it has a pressure-resistant structure. The blower 6 introduces gas from the discharge source to the adsorbent layer. In the first step, the air is blown at a linear velocity of the adsorbent layer of about 50 cm / s or less. In the second step, the blowing is stopped or the operation is performed so that the desorbed gas does not flow backward with a significantly reduced blowing amount. Switching valve 7
Is a switching valve for returning the clean gas to the discharge source or discharging it into the air in the first step, and introducing the desorbed gas to the third step in the second step. The operation procedure is as follows. Exhaust gas is introduced from the blower 6 into the adsorption column 2 without being irradiated with microwaves, and is adsorbed on the adsorbent layer (first step). The adsorption is carried out at around room temperature by cooling with the exhaust gas. The clean gas after the adsorptive component has been adsorbed is discharged to the discharge source or air by the switching valve 7. Or abort the operation of the blower 6 upon adsorbable component in the adsorbent is sufficiently adsorbed (reached breakthrough), the microwave irradiation of about 2 to 15 minutes during the switch to a minimum operation (second step ). The microwave power is adjusted so that the temperature in the adsorbent layer does not exceed the desorption temperature determined by the adsorptive component (usually about 150 ° C.). The desorbed gas having a concentration of nearly 100% is guided to the cooling box 3 where it is cooled and recovered as a liquid (third step).
【０００７】吸着筒２における吸着剤は、粒子同士が直
接接しないように処理された活性炭である。活性炭はア
ンテナ効果でマイクロ波を吸収し内部に電流が流れ、ジ
ュール熱が発生する。しかし、この際火花が発生し、吸
着物質等を分解させる傾向を持っている。したがって、
次のように処置した活性炭を使用する。活性炭の外表面
を非電導性物質、例えば、シリカゲルで覆ったものか、
非電導性物質と混合し、活性炭同士の接触点を減少させ
たものである。[0007] adsorbent in the adsorption column 2 is activated carbon particle between children has been processed so as not to contact directly. Activated carbon, the current flows therein to absorb microwave antenna effect, Joule heat is generated. However, at this time, a spark is generated, which tends to decompose the adsorbed substance and the like. Therefore,
Use activated carbon treated as follows. Whether the outer surface of the activated carbon is covered with a non-conductive substance, for example, silica gel,
It is mixed with a non-conductive substance to reduce the contact points between activated carbons.
【０００８】[0008]
【実施例】次に、本発明を実施例によって更に具体的に
説明するが、本発明はこの実施例によって限定されるも
のではない。Next, the present invention will be described more specifically with reference to examples, but the present invention is not limited to these examples.
【０００９】実施例１ 図２に示す家庭用電子レンジ、冷凍庫を改造したマイク
ロ波照射型の吸着回収装置を使い、試料ガスとして、１
０００ｐｐｍのフロン−１１３（以下フロン）を含む空
気を処理した。図２において、１４はマスフローコント
ローラ、１５はガス導入管、１６は電子レンジ、１７は
吸着管、１８は吸着剤層、１９は吸着剤固定用くぼみ、
２０は光ファイバー温度計、２１は切り替えバルブ、２
２、２３はガス配管、２４は冷凍庫、２５は冷却蛇管、
２６はフラスコである。吸着管１７は、内径２．０ｃ
ｍ、全長７０ｃｍの石英製Ｕ字管で、電子レンジの中に
は６０ｃｍの部分が入っている。このＵ字管の中央３０
ｃｍの部分に吸着剤が充填されている。この吸着剤を固
定するために、石英ウールを固定くぼみ１９に少し入れ
てある。石英製吸着管は電子レンジの外側に約５ｃｍ存
在する。冷凍庫２４までの出口側のガス配管、切り替え
バルブおよび電子レンジ外側の石英管は脱離フロンの凝
縮を防ぐため、８０℃に保温してある。[0009] domestic microwave oven shown in Embodiment 1 FIG. 2, use the microwave irradiation type adsorption recovery device of a converted freezer, as sample gas, 1
Air containing 000 ppm Freon-113 (hereinafter Freon) was treated. In FIG. 2 , 14 is a mass flow controller, 15 is a gas introduction tube, 16 is a microwave oven, 17 is an adsorption tube, 18 is an adsorbent layer, 19 is an adsorbent fixing recess,
20 is an optical fiber thermometer, 21 is a switching valve, 2
2, 23 are gas pipes, 24 is a freezer, 25 is a cooling snake tube,
26 is a flask. The suction tube 17 has an inner diameter of 2.0 c.
m, a quartz U-tube with a total length of 70 cm, and a microwave oven containing a 60 cm portion. The center 30 of this U-shaped tube
The adsorbent is filled in a part of cm. In order to fix the adsorbent, a small amount of quartz wool is placed in the fixing recess 19. The quartz suction tube is located about 5 cm outside the microwave oven. The gas pipe on the outlet side to the freezer 24, the switching valve, and the quartz pipe outside the microwave oven are kept at 80 ° C. in order to prevent condensation of the desorbed Freon.
【００１０】粉末活性炭と疎水性粉末ゼオライトを重量
比で７：３の割合で混合し、プレス成形した吸着剤を吸
着管１７に充填した。この吸着剤層に、前記試料ガスを
供給したところ、吸着剤層出口ガス中のフロン濃度はほ
とんど検知できなかった。なお、フロンの分析はマスフ
ィルターで行った。吸着剤層出口にフロンが僅かに検知
された段階でガス流量を少なくすると共に、切り替えバ
ルブにて出口ガスを冷凍庫２４に導くとともに、電子レ
ンジ１６においてマイクロ波の照射を開始した。マイク
ロ波出力は約３００Ｗで、この時の吸着剤層温度は１５
０℃であった。約０℃に調節された冷凍庫２４内でフロ
ンは冷却され液としてフラスコ２６で回収された。回収
されたフロンは１５ｃｃで、流通させた試料ガスから計
算で求めたフロン量の９５％であった。[0010] Powdered activated carbon and hydrophobic powdered zeolite were mixed at a weight ratio of 7: 3, and an adsorbent formed by press molding was filled in an adsorption tube 17. When the sample gas was supplied to the adsorbent layer, almost no flon concentration in the gas at the outlet of the adsorbent layer could be detected. The analysis of CFCs was performed with a mass filter. At the stage when the fluorocarbon was slightly detected at the outlet of the adsorbent layer, the gas flow rate was reduced, the outlet gas was guided to the freezer 24 by the switching valve, and microwave irradiation was started in the microwave oven 16. The microwave output is about 300 W, and the adsorbent layer temperature at this time is 15
It was 0 ° C. CFCs were cooled in a freezer 24 adjusted to about 0 ° C., and collected in a flask 26 as a liquid. The recovered Freon was 15 cc, which was 95% of the Freon amount calculated from the flowing sample gas.
【００１１】[0011]
【発明の効果】本発明の方法によれば、少量発生源から
排出される揮発性有機化合物等の吸着性成分を低コスト
で分離回収できることから、環境保全の点で問題となっ
ているガス中に含まれる有害汚染物質を容易に分離回収
することができ、この問題の解決に多大な寄与をするこ
とができる。According to the method of the present invention, adsorbable components such as volatile organic compounds discharged from a small amount of sources can be separated and recovered at low cost. Can easily separate and recover harmful pollutants contained in water, and can greatly contribute to solving this problem.
【図１】マイクロ波照射型ガス吸着回収装置の構造説明
図を示す。FIG. 1 shows a structural explanatory view of a microwave irradiation type gas adsorption and recovery apparatus.
【図２】電子レンジと冷凍庫を含むガス吸着回収装置の
構造説明図を示す。FIG. 2 is a structural explanatory view of a gas adsorption and recovery device including a microwave oven and a freezer.
１ マイクロ波照射ボックス ２ 吸着筒 ３ 冷却ボックス ４ 冷却コイル ５ 回収液受器 ６ 送風機 ７ 切り替えバルブ １４ マスフローコントローラ １５ ガス導入管 １６ 電子レンジ １７ 吸着管 １８ 吸着剤層 ２０ 光ファイバー温度計 ２４ 冷凍庫 ２５ 冷却蛇管 ２６ フラスコ DESCRIPTION OF SYMBOLS 1 Microwave irradiation box 2 Adsorption cylinder 3 Cooling box 4 Cooling coil 5 Recovered liquid receiver 6 Blower 7 Switching valve 14 Mass flow controller 15 Gas introduction tube 16 Microwave oven 17 Adsorption tube 18 Adsorbent layer 20 Optical fiber thermometer 24 Freezer 25 Cooling snake tube 26 flask
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｂ０１Ｄ 53/81 ＺＡＢ (72)発明者 田森 行男 茨城県つくば市小野川16番３ 工業技術 院 資源環境技術総合研究所内 (72)発明者 水野 光一 茨城県つくば市小野川16番３ 工業技術 院 資源環境技術総合研究所内 (72)発明者 北川 浩 茨城県つくば市小野川16番３ 工業技術 院 資源環境技術総合研究所内 (72)発明者 平山 鋼太郎 神奈川県川崎市川崎区殿町２丁目17番８ 号 第一高周波工業株式会社 技術部内 (72)発明者 検見崎 千浩 神奈川県川崎市川崎区殿町２丁目17番８ 号 第一高周波工業株式会社 技術部内 審査官 森 健一 (56)参考文献 特開 昭49−27484（ＪＰ，Ａ) 特開 昭59−6924（ＪＰ，Ａ) 特開 昭61−101229（ＪＰ，Ａ) 特開 昭54−107477（ＪＰ，Ａ) 特開 昭55−61918（ＪＰ，Ａ) 特開 昭59−196716（ＪＰ，Ａ) 特開 昭62−163725（ＪＰ，Ａ) 実開 昭61−123857（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B01D 53/04 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification code FI B01D 53/81 ZAB (72) Inventor Yukio Tamori 16-3 Onogawa, Tsukuba, Ibaraki Pref. Inventor Koichi Mizuno 16-3 Onogawa Tsukuba, Ibaraki Pref., National Institute of Advanced Industrial Science and Technology (72) Inventor Hiroshi Kitagawa 16-3 Onogawa, Tsukuba, Ibaraki Pref. Person Kotaro Hirayama 2-17-8 Tonomachi, Kawasaki-ku, Kawasaki-ku, Kanagawa Prefecture Within the Technical Department of Dai-ichi High Frequency Industry Co., Ltd. Kenichi Mori, Examiner, Technical Department, Inc. (56) References JP-A-49-27484 (JP, A) JP-A-59-6924 (JP, A) JP-A-61-101229 (JP, A) JP-A-54-107477 (JP, A) JP-A-55-61918 (JP, A) JP-A-59-196716 (JP, A) JP-A-62-163725 (JP) , A) Real opening 61-123857 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) B01D 53/04
Claims (3)
性を有する吸着剤層に導入して該吸着性成分を吸着剤に
吸着させる第１工程と、該ガスの導入を中止あるいは流
量を著しく小さくし、該吸着剤層をマイクロ波加熱して
該吸着剤層に吸着した吸着物を脱離させる第２工程と、
該脱離ガスを冷却液化する第３工程とからなり、前記吸
着剤は外表面を非電導物質で覆うか又は非電導物質を混
合した活性炭からなることを特徴とする簡易ガス吸着回
収方法。1. A first step of introducing a gas containing an adsorptive component into an adsorbent layer having a microwave absorbing property to adsorb the adsorptive component to the adsorbent, and stopping the introduction of the gas or significantly reducing the flow rate. A second step of reducing the size of the adsorbent layer and desorbing the adsorbed substance adsorbed on the adsorbent layer by microwave heating the adsorbent layer;
It becomes a dehydration away gas and a third step of cooling liquefaction, the intake
The adhesive covers the outer surface with a nonconductive material or mixes a nonconductive material.
A simple gas adsorption and recovery method characterized by comprising activated carbon combined .
吸着剤層の温度分布が一様であることを特徴とする請求
項１に記載した方法。2. A method according to claim 1 in which the temperature distribution of the microwave radiation thus heated has been adsorbent layer is characterized in that it is a uniform.
び吸着性成分が分解あるいは反応をしないことを特徴と
する請求項１に記載した方法。3. A method according to claim 1 wherein said introducing gas and adsorbable component by the irradiation of microwaves, characterized in that no decomposition or reaction.
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| JP9127949A JP3044279B2 (en) | 1997-05-01 | 1997-05-01 | Simple gas adsorption recovery method |
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| JP3044279B2 true JP3044279B2 (en) | 2000-05-22 |
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| KR100454427B1 (en) * | 2001-06-15 | 2004-10-26 | 주식회사제4기한국 | Harmful gas purifying apparatus and thereof method by using microwave |
| JP4872060B2 (en) * | 2004-01-07 | 2012-02-08 | 独立行政法人産業技術総合研究所 | Solvent or gas recovery method |
| KR100579760B1 (en) | 2004-07-30 | 2006-05-15 | 전북대학교산학협력단 | An adsorptim-detachment device using microwave |
| KR100704988B1 (en) | 2004-08-23 | 2007-04-10 | 한국화학연구원 | Organic waste treatment by adsorptiondesorption cycle assisted by microwave |
| KR100644883B1 (en) | 2005-05-24 | 2006-11-14 | 한국에너지기술연구원 | Compact voc recovery system |
| KR100715240B1 (en) * | 2005-07-04 | 2007-05-04 | 최성우 | VOC absorbing and recovering apparatus using microwave and method at the same of |
| KR100763546B1 (en) | 2006-07-25 | 2007-10-04 | 계명대학교 산학협력단 | Voc absorbing and recovering apparatus using electron wave |
| JP4982893B2 (en) * | 2007-06-28 | 2012-07-25 | 独立行政法人産業技術総合研究所 | High frequency heating type adsorption tower |
| JP5058107B2 (en) * | 2008-09-12 | 2012-10-24 | 株式会社東芝 | NOx purification device |
| JPWO2010061517A1 (en) * | 2008-11-28 | 2012-04-19 | ダイキン工業株式会社 | Adsorption molded body, adsorption recovery processing apparatus, and adsorbed substance desorption method |
| WO2010128599A1 (en) | 2009-05-08 | 2010-11-11 | 新日本製鐵株式会社 | Hybrid adsorbent and method for collection of carbon dioxide from gas |
| JP2013123669A (en) * | 2011-12-14 | 2013-06-24 | Daifuku Co Ltd | Concentration recovery method for concentration recovery object component in treated gas or moisture in treated gas, and concentration recovery apparatus for concentration recovery object component in treated gas or moisture in treated gas using the same |
| JP2014012241A (en) * | 2012-07-03 | 2014-01-23 | Daifuku Co Ltd | Apparatus for treatment of concentration object constituent in gas to be treated, and method for treatment of concentration object constituent in the gas to be treated using the treatment apparatus |
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