JPH0739722A - Method and apparatus for purification of exhaust gas - Google Patents
Method and apparatus for purification of exhaust gasInfo
- Publication number
- JPH0739722A JPH0739722A JP5192308A JP19230893A JPH0739722A JP H0739722 A JPH0739722 A JP H0739722A JP 5192308 A JP5192308 A JP 5192308A JP 19230893 A JP19230893 A JP 19230893A JP H0739722 A JPH0739722 A JP H0739722A
- Authority
- JP
- Japan
- Prior art keywords
- oxidation catalyst
- layer
- adsorbent layer
- gas
- catalyst layer
- 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
Landscapes
- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、各種産業、化学プラン
トから排出される排ガス中の炭化水素、一酸化炭素、有
臭ガス、等の燃焼可能な有害、悪臭成分を除去するため
の排ガス浄化方法とその装置に関する。BACKGROUND OF THE INVENTION The present invention relates to exhaust gas purification for removing combustible harmful and malodorous components such as hydrocarbons, carbon monoxide, and odorous gases in exhaust gas discharged from various industries and chemical plants. A method and its apparatus.
【0002】[0002]
【従来の技術】樹脂の製造加工に代表される各種有機物
質の製造加工産業において、その工場からの排ガス中
に、悪臭の原因となる成分や、人体に有害な成分が微量
含まれることがあり、公害防止上からも、これらを除去
することが望まれている。このような排ガスの処理につ
いては、種々の努力がなされているが、排ガス中に含ま
れる前記有害、悪臭成分の量が極端に少なくなると、こ
れらを処理するのが難しくなり、従来の技術では処理し
きれないものもでてきている。2. Description of the Related Art In the manufacturing and processing industry of various organic substances represented by resin manufacturing and processing, the exhaust gas from the factory may contain a trace amount of a component causing a bad odor and a component harmful to the human body. It is desired to remove these from the viewpoint of pollution prevention. Various efforts have been made for the treatment of such exhaust gas, but when the amount of the harmful and malodorous components contained in the exhaust gas becomes extremely small, it becomes difficult to treat them, and the conventional technique treats them. Some things are not available.
【0003】上記の処理方法として採用されているもの
では、排ガスを燃焼炉に導いて、燃焼させることにより
前記有害、悪臭成分を酸化する方法(以下、直接燃焼法
という)と、酸化触媒に前記有害、悪臭成分を接触酸化
させて処理する方法(以下、触媒燃焼法という)があ
る。特に触媒燃焼法は、公害の元凶とされる窒素酸化物
の発生が抑えられることから、好ましい方法とされてい
る。この他に、一般的に用いられる方法としては、活性
炭をはじめとする吸着剤に排ガスを通して、有害、悪臭
成分を吸着させる方法(以下、単純吸着法という)があ
る。In the method adopted as the above treatment method, the exhaust gas is introduced into a combustion furnace and is burned to oxidize the harmful and malodorous components (hereinafter referred to as the direct combustion method), and the oxidation catalyst is used as the above-mentioned method. There is a method (hereinafter referred to as a catalytic combustion method) of treating harmful and malodorous components by catalytically oxidizing them. In particular, the catalytic combustion method is regarded as a preferable method because it suppresses the generation of nitrogen oxides, which is a source of pollution. In addition to this, as a method generally used, there is a method (hereinafter, referred to as a simple adsorption method) of adsorbing harmful and malodorous components by passing exhaust gas through an adsorbent such as activated carbon.
【0004】排ガス中に含まれる有害、悪臭成分の量が
極端に少ないガスを処理する場合は、単純吸着法と直接
燃焼法または触媒燃焼法を組合せる方法、すなわち一旦
排ガス中の有害、悪臭成分を吸着剤に吸着させ、ある程
度の吸着量になったら、高温のガスを吹き込んで吸着成
分を脱離させ、直接焼却するかまたは酸化触媒で酸化処
理する方法(以下、吸着−酸化処理法という)も盛んに
採用されている。When treating a gas in which the amount of harmful or malodorous components contained in the exhaust gas is extremely small, a method combining a simple adsorption method and a direct combustion method or a catalytic combustion method, that is, a harmful or malodorous component once in the exhaust gas Is adsorbed on the adsorbent, and when the amount of adsorption reaches a certain level, a high-temperature gas is blown to desorb the adsorbed components, and the mixture is directly incinerated or oxidized by an oxidation catalyst (hereinafter referred to as adsorption-oxidation treatment method). Is also widely used.
【0005】[0005]
【発明が解決しようとする課題】本発明は上述した各種
方法の中の吸着−酸化処理法を用いた装置であるが、従
来の装置では次のような問題点がある。The present invention is an apparatus using the adsorption-oxidation treatment method among the above-mentioned various methods, but the conventional apparatus has the following problems.
【0006】一旦吸着した有害、悪臭成分を吸着剤から
脱離させる場合には、吸着剤を100〜500℃の温度に加熱
するため、何らかの熱源が必要となる。従来の技術で
は、補助バーナで燃料を燃焼させて加熱しているため、
補助バーナ用の燃料が余分に必要となり、さらに補助バ
ーナの運転のための制御装置も複雑となる。また、吸着
剤層を回転可能とし、吸着剤層のある領域にだけ吸着さ
せることにより、吸着がある程度進んだところで吸着層
のロータを回転させ、新しい吸着剤層の部分を排ガスに
曝す一方、吸着が終了している吸着剤層の部分に高温の
ガスを通して脱離させる方法では、ロータ回転中に発生
する温度分布の変化にたいして、吸着剤層が変形、破損
する恐れがある。さらに、回転部を必要とするため装置
構成が複雑となり、装置の価格が高くなる。When desorbing harmful and malodorous components that have once been adsorbed, the adsorbent is heated to a temperature of 100 to 500 ° C., so that some heat source is required. In the conventional technology, since the auxiliary burner burns the fuel to heat it,
Extra fuel for the auxiliary burner is required, and the control system for operating the auxiliary burner is complicated. Also, by making the adsorbent layer rotatable and adsorbing it only in a certain area of the adsorbent layer, the rotor of the adsorbent layer is rotated when adsorption has progressed to some extent, and the new adsorbent layer part is exposed to exhaust gas while adsorbing the adsorbent layer. In the method of desorbing the hot gas by passing it through the part of the adsorbent layer in which the adsorbent layer has been completed, the adsorbent layer may be deformed or damaged due to the change in the temperature distribution generated during the rotation of the rotor. Furthermore, since the rotating part is required, the device configuration becomes complicated, and the cost of the device increases.
【0007】本発明の目的は、簡単な装置構成で、排ガ
スの有害、悪臭成分を確実に除去するにある。An object of the present invention is to reliably remove harmful and malodorous components of exhaust gas with a simple device structure.
【0008】[0008]
【課題を解決するための手段】上記課題は、吸入口から
排ガスを含む気体を該吸入口に接続された気体流路に取
り入れ、該取り入れた気体に含まれる有害、悪臭成分を
気体流路中に配置された吸着剤層に吸着させ、必要に応
じてあるいは定期的に該吸着剤層を加熱して吸着されて
いた前記有害、悪臭成分を脱離させ、脱離された有害、
悪臭成分を前記吸着剤層の下流側気体流路に配置された
酸化触媒層で酸化処理し、有害、悪臭成分が除去された
前記気体を酸化触媒層のさらに気体流路下流側に配置さ
れた吐出口から放出する排ガス浄化方法において、吸着
剤層と酸化触媒層とを連続した金属製板状の基板上の別
々の領域に形成し、該連続した基板を酸化触媒層が吸着
剤層の下流側になるように前記気体流路中に配置し、吸
着剤層と酸化触媒層のいずれか一方を加熱することによ
り、他方の温度を上昇させる方法で達成される。Means for Solving the Problems The above-mentioned problems are solved by introducing a gas containing exhaust gas from an intake port into a gas flow path connected to the intake port, and introducing harmful or odorous components contained in the taken gas into the gas flow path. Adsorbed to the adsorbent layer disposed in, and if necessary or periodically heated the adsorbent layer to desorb the harmful and malodorous components that have been adsorbed, desorbed harmful,
The malodorous component was oxidized by the oxidation catalyst layer disposed in the gas flow channel downstream of the adsorbent layer, and the harmful and malodorous component-removed gas was disposed further downstream in the gas flow channel of the oxidation catalyst layer. In the method for purifying exhaust gas discharged from the discharge port, an adsorbent layer and an oxidation catalyst layer are formed in separate regions on a continuous metal plate-shaped substrate, and the continuous substrate is provided with the oxidation catalyst layer downstream of the adsorbent layer. This is achieved by a method of arranging the adsorbent layer and the oxidation catalyst layer so that the temperature of the adsorbent layer is higher than that of the adsorbent layer and the oxidation catalyst layer.
【0009】上記課題は、さらに、排ガスを含む気体を
取り入れる吸入口と、該吸入口に接続された気体流路
と、該気体流路に配置され前記取り入れられた気体に含
まれる有害、悪臭成分を吸着する吸着剤層と、該吸着剤
層の下流側気体流路に配置され吸着剤層から吸着剤層の
加熱により脱離された有害、悪臭成分を酸化除去する酸
化触媒層と、該酸化触媒層の下流側気体流路に配置され
有害、悪臭成分が分離除去された気体を吐出する吐出口
とを含んでなる排ガス処理装置において、前記吸着剤層
と酸化触媒層とが連続した金属製板状の基板の異なる領
域に形成され、該基板の吸着剤層が形成された領域と酸
化触媒層が形成された領域の中間部と、該中間部に前記
吸着剤層およびまたは酸化触媒層を挟んで対向する基板
端部とに通電加熱のための電極が設けられ、前記基板
は、吸着剤層及び酸化触媒層がそれぞれ前記気体流路に
位置するようにかつ吸着剤層が酸化触媒層の上流側にな
るように配置されることで達成される。The above-mentioned problem is further solved by an intake port for taking in a gas containing exhaust gas, a gas flow path connected to the intake port, and a harmful or malodorous component contained in the gas introduced in the gas flow path. An adsorbent layer for adsorbing the adsorbent, an oxidation catalyst layer disposed in a gas flow path on the downstream side of the adsorbent layer for oxidizing and removing harmful and malodorous components desorbed from the adsorbent layer by heating the adsorbent layer, and the oxidation In an exhaust gas treatment device including a discharge port for discharging a gas in which a harmful and malodorous component is separated and removed, which is arranged in a gas flow path on the downstream side of a catalyst layer, the adsorbent layer and the oxidation catalyst layer are made of a continuous metal. The adsorbent layer and / or the oxidation catalyst layer are formed in different regions of the plate-shaped substrate, and the adsorbent layer and / or the oxidation catalyst layer are formed in the middle part between the region where the adsorbent layer is formed and the region where the oxidation catalyst layer is formed. Electric current is applied to the board edges facing each other. Electrodes are provided for the substrate, and the substrate is arranged so that the adsorbent layer and the oxidation catalyst layer are located in the gas flow path and the adsorbent layer is on the upstream side of the oxidation catalyst layer. To be done.
【0010】[0010]
【作用】有害、悪臭成分を含む気体が、吸入口から取り
入れられると、該気体は電極を有する基板上の吸着剤層
を通過する。この時、気体の有害、悪臭成分は吸着剤に
吸着される。ある程度の吸着量になったら、電極を有す
る基板の中間部と吸着剤層側の端部の前記電極に通電し
加熱すれば、電極を有する基板上の吸着剤層が加熱され
るため吸着されていた成分が脱離され、該脱離された成
分は酸化触媒層に流れ、ここで基板の熱伝導で前記吸着
剤層とともに加熱されている酸化触媒層の触媒により酸
化処理される。そして処理が済んだ気体は吐出口を経由
して装置外へ吐出される。When a gas containing harmful and malodorous components is taken in through the suction port, the gas passes through the adsorbent layer on the substrate having the electrode. At this time, harmful and malodorous components of the gas are adsorbed by the adsorbent. When the adsorbed amount reaches a certain level, the adsorbent layer on the substrate having the electrode is adsorbed because the adsorbent layer on the substrate having the electrode is heated by energizing and heating the electrode at the intermediate portion of the substrate having the electrode and the end portion on the adsorbent layer side. The desorbed component is desorbed, and the desorbed component flows to the oxidation catalyst layer, where it is oxidized by the catalyst of the oxidation catalyst layer which is heated together with the adsorbent layer by heat conduction of the substrate. Then, the treated gas is discharged to the outside of the device through the discharge port.
【0011】[0011]
【実施例】本発明の実施例を図1に示す。排ガス浄化装
置1は、互いに隣接した形で、排ガスの流れる方向が互
いに相反する方向になるように配置されそれぞれ流入口
14と吐出口15を含んでなる吸着用流路6及び酸化用
流路7と、電極を有した基板(以下、電極エレメント1
2という)が複数枚組合わされたものを前記排ガスの流
れる方向に対して吸着剤層2と酸化触媒層3で形成され
た面が平行となるように前記吸着用流路6及び酸化用流
路7に配置した処理手段と、前記吸着用流路6と酸化用
流路7を接続する間隙13を含んで構成されている。FIG. 1 shows an embodiment of the present invention. The exhaust gas purifying apparatus 1 is arranged adjacent to each other so that the exhaust gas flow directions are opposite to each other, and the adsorption flow path 6 and the oxidation flow path 7 each include an inlet 14 and an outlet 15. And a substrate having electrodes (hereinafter, electrode element 1
2) are combined so that the surfaces formed by the adsorbent layer 2 and the oxidation catalyst layer 3 are parallel to the flow direction of the exhaust gas. 7 and a gap 13 connecting the adsorption flow path 6 and the oxidation flow path 7.
【0012】前記電極エレメント12は金属を用いた基
板であり、各々の電極に接続された電極取出し部4Aと
該電極取出し部4Aに接続されたリード線4を有してい
る。図4に示すように、電極エレメント12の面の中間
部及び両端部にそれぞれ電極接合部10と電極固定用穴
または切欠け11が設けられ、前記電極エレメント12
の面の半分には吸着剤層2が、他の半分には酸化触媒層
3が形成されている。また、図2及び図3に示すよう
に、前記電極エレメント12複数枚が、中間電極5と端
部電極4Bとを結合させるように、電極固定材8を用い
て組合わされている。組合された電極エレメントは、そ
の吸着剤層部分が吸着用流路6に位置し、酸化触媒層部
分が酸化用流路7に位置するように配置され、電極エレ
メントの吸着剤層側端部と酸化触媒層側端部は、電気絶
縁材を兼ね熱膨張吸収材の役目をする無機シール材9を
介して流路壁面に取付けられている。さらに前記中間電
極5が、前記組合された電極エレメントの取付けられて
いる部分の前記吸着用流路6と酸化用流路7との区画を
遮断している。The electrode element 12 is a substrate made of metal and has an electrode lead-out portion 4A connected to each electrode and a lead wire 4 connected to the electrode lead-out portion 4A. As shown in FIG. 4, an electrode joint portion 10 and an electrode fixing hole or notch 11 are provided in the intermediate portion and both end portions of the surface of the electrode element 12, respectively.
The adsorbent layer 2 is formed on one half of the surface and the oxidation catalyst layer 3 is formed on the other half. Further, as shown in FIGS. 2 and 3, the plurality of electrode elements 12 are combined with each other by using the electrode fixing material 8 so as to couple the intermediate electrode 5 and the end electrode 4B. The combined electrode elements are arranged such that the adsorbent layer portion thereof is located in the adsorption flow channel 6 and the oxidation catalyst layer portion thereof is located in the oxidation flow passage 7, and the adsorbent layer side end portion of the electrode element is disposed. The oxidation catalyst layer side end is attached to the wall surface of the flow path via an inorganic seal material 9 which also functions as an electrical insulating material and serves as a thermal expansion absorber. Further, the intermediate electrode 5 blocks the partition between the adsorption flow channel 6 and the oxidation flow channel 7 in the portion where the combined electrode elements are attached.
【0013】排ガスの流れは、前記吸着用流路6の前記
吸着剤層2を通過後、前記間隙13で反転し、前記酸化
用流路7の酸化触媒層3を通過し、装置外へ排出され
る。この過程で、通常は電極エレメントには通電してい
ないので、排ガス中の有害、悪臭成分は吸着剤層2に吸
着される。吸着剤層2に有害、悪臭成分がある程度吸着
され、吸着剤層2の吸着効果がなくなってきたら、電極
エレメントに通電し、電極エレメントが加熱されると、
吸着剤層2に吸着していた成分が脱離され、該脱離され
た成分は酸化触媒層3にながれて、そこで酸化処理され
る。After passing through the adsorbent layer 2 in the adsorption channel 6, the exhaust gas flow is reversed in the gap 13, passes through the oxidation catalyst layer 3 in the oxidation channel 7, and is discharged to the outside of the apparatus. To be done. In this process, since the electrode element is not normally energized, harmful and malodorous components in the exhaust gas are adsorbed by the adsorbent layer 2. When the harmful and malodorous components are adsorbed to the adsorbent layer 2 to some extent and the adsorbing effect of the adsorbent layer 2 is lost, the electrode element is energized and the electrode element is heated.
The components adsorbed on the adsorbent layer 2 are desorbed, and the desorbed components flow to the oxidation catalyst layer 3 where they are oxidized.
【0014】通電は中間電極5を通して吸着剤層2と酸
化触媒層3を区分けして行えるようになっている。よっ
て、吸着剤層2または酸化触媒層3いずれか片側だけを
発熱させる必要が生じたら、片側だけ通電することで、
電極エレメントの加熱の目的が達せられる。本実施例で
は吸着剤層2と酸化触媒層3の両方に通電可能なように
構成されているが、吸着剤層2と酸化触媒層3は電極エ
レメントとして一体であり、かつ吸着剤層2と酸化触媒
層3の基板が金属なので熱伝導が良好なため、いずれか
一方を通電し加熱すれば、他方も熱伝導により発熱す
る。この点が本実施例の大きな特徴であり、装置を運転
するときに必要な熱を極めて有効に利用できる。The energization can be performed by separating the adsorbent layer 2 and the oxidation catalyst layer 3 through the intermediate electrode 5. Therefore, if it becomes necessary to heat only one side of the adsorbent layer 2 or the oxidation catalyst layer 3, by energizing only one side,
The purpose of heating the electrode element is reached. In this embodiment, both the adsorbent layer 2 and the oxidation catalyst layer 3 are configured to be able to conduct electricity, but the adsorbent layer 2 and the oxidation catalyst layer 3 are integrated as an electrode element, and the adsorbent layer 2 and Since the substrate of the oxidation catalyst layer 3 is a metal, the heat conduction is good. Therefore, if one of them is energized and heated, the other also generates heat by heat conduction. This is a major feature of this embodiment, and the heat required for operating the device can be utilized very effectively.
【0015】通電形態(通電量や通電間隔など)は、装
置の容量や処理する排ガスの量及び種類によって種々変
化するが、排ガス中の有害、悪臭成分の脱離と酸化が最
も効果的に行える条件になるように設定されればよい。The form of energization (the amount of energization, the interval of energization, etc.) changes variously depending on the capacity of the apparatus and the amount and type of exhaust gas to be treated, but the desorption and oxidation of harmful and malodorous components in the exhaust gas can be most effectively performed. It may be set so as to meet the conditions.
【0016】電極エレメントが直接前記流路に固定され
ると、通電によって加熱させられた電極エレメントは、
熱膨張を起こし変形する。これを防ぐために本実施例で
は電極エレメントの両端部と流路の間に電気的絶縁と熱
膨張の吸収を兼ねて密度の小さな無機シール材9を配置
している。When the electrode element is directly fixed to the flow path, the electrode element heated by the energization is
Deforms due to thermal expansion. In order to prevent this, in this embodiment, an inorganic sealing material 9 having a low density is arranged between both ends of the electrode element and the flow path so as to serve as both electrical insulation and absorption of thermal expansion.
【0017】本実施例の基本構成の一つである金属基板
からなる電極エレメントは、吸着剤と酸化触媒を付着さ
せることができるものであれば、基本的にはどのような
ものでもよい。しかし、吸着を少ないスペースで効果的
に行わせるには、吸着剤の量をできるだけ多く担持でき
るものが望ましい。一方酸化触媒部分では、酸化反応促
進のため接触効率を高くする必要がある。このような点
を考慮して、本実施例では、電極エレメントの金属基板
をエキスパンドメタルとしている。ただし、金属基板に
用いる金属の種類や、その電気抵抗を所定の値にするた
めの寸法、形状や、電極エレメントの枚数等は、装置の
容量などにより選定する。また、適正な電極エレメント
を用いれば、排ガス量の多少に関係なく確実に排ガス処
理ができる。The electrode element made of a metal substrate, which is one of the basic constitutions of this embodiment, may be basically any element as long as it can attach the adsorbent and the oxidation catalyst. However, in order to effectively perform the adsorption in a small space, it is desirable that the adsorbent can support as much amount as possible. On the other hand, in the oxidation catalyst portion, it is necessary to increase the contact efficiency in order to promote the oxidation reaction. In consideration of such a point, in this embodiment, the metal substrate of the electrode element is made of expanded metal. However, the type of metal used for the metal substrate, the size and shape for making the electric resistance thereof to a predetermined value, the number of electrode elements, and the like are selected according to the capacity of the device. Further, if an appropriate electrode element is used, exhaust gas treatment can be performed reliably regardless of the amount of exhaust gas.
【0018】電極エレメントの吸着剤層を製作する手順
は次のとおりである。まず吸着剤の原料に適当な結合剤
や添加物を少量添加し混練し、適度な稠度をもったペー
ストとする。つぎにヘラあるいはロール等を用いて前記
ペーストをエキスパンドメタルに塗付ける。吸着剤層が
エキスパンドメタルより剥離しないように、適当な寸法
形状をした無機繊維あるいは無機板状物を適当量ペース
トに添加すればよい。これらは一般的に用いられる手法
である。このようにして多量の吸着剤が担持された吸着
剤層2が得られる。The procedure for producing the adsorbent layer of the electrode element is as follows. First, a small amount of an appropriate binder or additive is added to the raw material of the adsorbent and kneaded to obtain a paste having an appropriate consistency. Next, the paste is applied to the expanded metal using a spatula or a roll. In order to prevent the adsorbent layer from peeling off from the expanded metal, an appropriate amount of inorganic fiber or inorganic plate-like material having an appropriate size may be added to the paste. These are commonly used techniques. In this way, the adsorbent layer 2 carrying a large amount of adsorbent is obtained.
【0019】一方酸化触媒層3についても同様の手法に
より形成できる。図4はこうして得られた電極エレメン
トを模式的に示したもので、エレメント表面には基板と
した金属が僅かに露出している。図4と図5に示した電
極接合部10の領域には、中間電極5と端部電極4Bを
接合するために吸着剤及び酸化触媒を塗付けないように
してあり、さらに電極固定用に穴または切欠き11を設
けてある。図4に対して図5に示したエレメントの酸化
触媒層3Aは、酸化触媒をペースト状に塗付けないで、
触媒原料からなるスラリーに酸化触媒部分を浸し、余剰
スラリーを除去して、エキスパンドメタルの網目をつぶ
さないようにしている。これは酸化触媒の場合、酸化触
媒そのものの量だけでなく、処理ガスと触媒との接触度
合いが重要になり、エキスパンドメタル特有の三次元構
造は、触媒成分と処理ガスの接触効率向上に効果がある
からである。ただし実用するとき、酸化触媒層3または
3Aのうちどちらを選ぶかは、処理ガスの内容や酸化触
媒の性能により決める。On the other hand, the oxidation catalyst layer 3 can be formed by the same method. FIG. 4 schematically shows the electrode element thus obtained, in which the metal used as the substrate is slightly exposed on the element surface. In the region of the electrode joint portion 10 shown in FIGS. 4 and 5, an adsorbent and an oxidation catalyst are not applied to join the intermediate electrode 5 and the end electrode 4B, and a hole for fixing the electrode is further provided. Alternatively, a notch 11 is provided. As for the oxidation catalyst layer 3A of the element shown in FIG. 5 with respect to FIG. 4, the oxidation catalyst is not applied in a paste form,
The oxidation catalyst portion is dipped in a slurry made of a catalyst raw material to remove the excess slurry so that the expanded metal mesh is not crushed. This is because in the case of an oxidation catalyst, not only the amount of the oxidation catalyst itself but also the degree of contact between the treatment gas and the catalyst is important, and the three-dimensional structure peculiar to expanded metal is effective in improving the contact efficiency between the catalyst component and the treatment gas. Because there is. However, in practical use, which of the oxidation catalyst layers 3 and 3A is selected depends on the content of the processing gas and the performance of the oxidation catalyst.
【0020】なお、図4及び図5では吸着剤層2と酸化
触媒層3または3Aの面積をほぼ等しくしたが、この面
積比は種々の条件により変化させてもよい。Although the areas of the adsorbent layer 2 and the oxidation catalyst layer 3 or 3A are made substantially equal in FIGS. 4 and 5, the area ratio may be changed according to various conditions.
【0021】[0021]
【発明の効果】本発明によれば、排ガス浄化装置として
の構成が簡単となり、設計が容易となり、装置の価格も
安価となる。According to the present invention, the structure of the exhaust gas purifying device is simplified, the design is facilitated, and the cost of the device is reduced.
【図1】本発明の排ガス浄化装置の実施例の断面図であ
る。FIG. 1 is a sectional view of an embodiment of an exhaust gas purifying apparatus of the present invention.
【図2】本発明の排ガス浄化装置の実施例の結合された
電極エレメントの斜視図である。FIG. 2 is a perspective view of a combined electrode element of an embodiment of an exhaust gas purifying apparatus of the present invention.
【図3】本発明の図1に示す実施例の排ガス浄化装置の
III−III線矢視断面図である。FIG. 3 shows an exhaust gas purifying apparatus of the embodiment shown in FIG. 1 of the present invention.
It is a sectional view taken along the line III-III.
【図4】本発明の排ガス浄化装置の実施例の電極エレメ
ントの立面図である。FIG. 4 is an elevational view of an electrode element of an embodiment of the exhaust gas purifying apparatus of the present invention.
【図5】本発明の排ガス浄化装置の実施例の電極エレメ
ントの別の例の立面図である。FIG. 5 is an elevational view of another example of the electrode element of the embodiment of the exhaust gas purifying apparatus of the present invention.
1 排ガス浄化装置 2 吸着剤層 3 酸化触媒層 3A 酸化触媒層 4 リード線 4A 電極取出し部 4B 端部電極 5 中間電極 6 吸着用流路 7 酸化用流路 8 電極固定材 9 無機シール材 10 電極接合部 11 固定用穴または切欠き 12 電極エレメント 13 間隙 14 吸入口 15 吐出口 1 Exhaust Gas Purification Device 2 Adsorbent Layer 3 Oxidation Catalyst Layer 3A Oxidation Catalyst Layer 4 Lead Wire 4A Electrode Extraction Part 4B End Electrode 5 Intermediate Electrode 6 Adsorption Flow Path 7 Oxidation Flow Path 8 Electrode Fixing Material 9 Inorganic Sealing Material 10 Electrode Joint part 11 Fixing hole or notch 12 Electrode element 13 Gap 14 Suction port 15 Discharge port
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 B01D 53/81 53/94 B01D 53/36 103 Z ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display location B01D 53/81 53/94 B01D 53/36 103 Z
Claims (3)
に接続された気体流路に取り入れ、該取り入れた気体に
含まれる有害、悪臭成分を気体流路中に配置された吸着
剤層に吸着させ、必要に応じてあるいは定期的に該吸着
剤層を加熱して吸着されていた前記有害、悪臭成分を脱
離させ、脱離された有害、悪臭成分を前記吸着剤層の下
流側気体流路に配置された酸化触媒層で酸化処理し、有
害、悪臭成分が除去された前記気体を酸化触媒層のさら
に気体流路下流側に配置された吐出口から放出する排ガ
ス浄化方法において、前記吸着剤層と酸化触媒層とを連
続した金属製板状の基板上の別々の領域に形成し、該連
続した基板を酸化触媒層が吸着剤層の下流側になるよう
に前記気体流路中に配置し、吸着剤層と酸化触媒層のい
ずれか一方を加熱することにより、他方の温度を上昇さ
せることを特徴とする排ガス浄化方法。1. A gas containing exhaust gas is introduced from an inlet into a gas passage connected to the inlet, and harmful and malodorous components contained in the introduced gas are adsorbed in an adsorbent layer arranged in the gas passage. The adsorbent layer is adsorbed and the adsorbent layer is heated as necessary or periodically to desorb the adsorbed harmful and malodorous components, and the desorbed harmful and malodorous components are separated from the adsorbent layer on the downstream side gas. In the exhaust gas purification method, the oxidation treatment is carried out in the oxidation catalyst layer arranged in the flow path, and the harmful and malodorous components are discharged from the discharge port arranged on the gas flow path downstream side of the oxidation catalyst layer, An adsorbent layer and an oxidation catalyst layer are formed in separate regions on a continuous metal plate-shaped substrate, and the continuous substrate is placed in the gas flow path so that the oxidation catalyst layer is on the downstream side of the adsorbent layer. And heat either the adsorbent layer or the oxidation catalyst layer. The exhaust gas purifying method is characterized in that the temperature of the other is raised by doing so.
と、該吸入口に接続された気体流路と、該気体流路に配
置され前記取り入れられた気体に含まれる有害、悪臭成
分を吸着する吸着剤層と、該吸着剤層の下流側気体流路
に配置され吸着剤層から吸着剤層の加熱により脱離され
た有害、悪臭成分を酸化除去する酸化触媒層と、該酸化
触媒層の下流側気体流路に配置され有害、悪臭成分が分
離除去された気体を吐出する吐出口とを含んでなる排ガ
ス処理装置において、前記吸着剤層と酸化触媒層とが連
続した金属製板状の基板の異なる領域に形成され、該基
板の吸着剤層が形成された領域と酸化触媒層が形成され
た領域の中間部と、該中間部に前記吸着剤層およびまた
は酸化触媒層を挟んで対向する基板端部とに通電加熱の
ための電極が設けられ、前記基板は、吸着剤層及び酸化
触媒層がそれぞれ前記気体流路に位置するようにかつ吸
着剤層が酸化触媒層の上流側になるように配置されてい
ることを特徴とする排ガス浄化装置。2. A suction port for taking in a gas containing exhaust gas, a gas flow channel connected to the suction port, and an adsorption for adsorbing harmful and malodorous components contained in the gas taken in and arranged in the gas flow channel. An agent layer, an oxidation catalyst layer disposed in a gas flow path on the downstream side of the adsorbent layer for oxidizing and removing harmful and malodorous components desorbed from the adsorbent layer by heating the adsorbent layer, and a downstream of the oxidation catalyst layer In an exhaust gas treatment device including a discharge port for discharging a gas in which harmful and malodorous components are separated and removed, which is disposed in a side gas flow path, a metal plate-shaped substrate in which the adsorbent layer and the oxidation catalyst layer are continuous Formed in different regions of the substrate and facing the intermediate portion of the region where the adsorbent layer of the substrate is formed and the region where the oxidation catalyst layer is formed, and to face the intermediate portion with the adsorbent layer and / or the oxidation catalyst layer interposed therebetween. Electrodes are provided on the edge of the substrate The exhaust gas purifying apparatus is characterized in that the substrate is arranged such that the adsorbent layer and the oxidation catalyst layer are respectively located in the gas flow path and the adsorbent layer is on the upstream side of the oxidation catalyst layer. .
タルであることを特徴とする請求項2に記載の排ガス浄
化装置。3. The exhaust gas purifying apparatus according to claim 2, wherein the metal plate-shaped substrate is an expanded metal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5192308A JPH0739722A (en) | 1993-08-03 | 1993-08-03 | Method and apparatus for purification of exhaust gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5192308A JPH0739722A (en) | 1993-08-03 | 1993-08-03 | Method and apparatus for purification of exhaust gas |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0739722A true JPH0739722A (en) | 1995-02-10 |
Family
ID=16289118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5192308A Pending JPH0739722A (en) | 1993-08-03 | 1993-08-03 | Method and apparatus for purification of exhaust gas |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0739722A (en) |
-
1993
- 1993-08-03 JP JP5192308A patent/JPH0739722A/en active Pending
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