JPH05123529A - Catalytic combustion device for solvent-containing gas - Google Patents
Catalytic combustion device for solvent-containing gasInfo
- Publication number
- JPH05123529A JPH05123529A JP3292936A JP29293691A JPH05123529A JP H05123529 A JPH05123529 A JP H05123529A JP 3292936 A JP3292936 A JP 3292936A JP 29293691 A JP29293691 A JP 29293691A JP H05123529 A JPH05123529 A JP H05123529A
- Authority
- JP
- Japan
- Prior art keywords
- solvent
- gas
- combustion
- containing gas
- recovered
- 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
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、印刷工場等の溶剤を回
収して燃焼させる溶剤含有ガスの触媒燃焼装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a catalytic combustion apparatus for solvent-containing gas for recovering and burning a solvent in a printing plant or the like.
【０００２】[0002]
【従来の技術】従来の溶剤含有ガスの触媒燃焼装置にお
いては、一般に処理溶剤の濃度が低く、かつ、ランニン
グコスト低減のため、燃焼温度は３００℃程度の比較的
低温度で運転されている。2. Description of the Related Art In a conventional catalytic combustion apparatus for solvent-containing gas, the concentration of the processing solvent is generally low, and the combustion temperature is relatively low at about 300 ° C. in order to reduce the running cost.
【０００３】[0003]
【発明が解決しようとする課題】前記のように、３００
℃程度の燃焼温度という低い温度条件では、溶剤に同伴
されるシリカ等の触媒毒により、触媒が被毒されるため
に長期間使用できない（数１０日程度で被毒する）。As described above, 300
Under a low temperature condition such as a combustion temperature of about 0 ° C., the catalyst is poisoned by the catalyst poison such as silica entrained in the solvent and cannot be used for a long period of time (poisoning in about several tens days).
【０００４】図２に触媒と燃焼温度との関係を示すが、
同図に示すように、触媒層温度が５００℃以上になる
と、シリカ等の影響が少なくなり実用上は問題とならな
いことが、実験的に確認されている。すなわち、触媒は
約１年間使用可能となる。FIG. 2 shows the relationship between the catalyst and the combustion temperature.
As shown in the figure, it has been experimentally confirmed that when the temperature of the catalyst layer is 500 ° C. or higher, the influence of silica or the like is reduced and there is no problem in practical use. That is, the catalyst can be used for about one year.
【０００５】なお、図２において、ガス流量をＦ、Ｓｉ
濃度をＣ、使用時間をｔ、触媒重量をＷとすると、触媒
重量に対するＳｉ流入割合ηは次式で示される。In FIG. 2, the gas flow rates are F, Si.
When the concentration is C, the use time is t, and the catalyst weight is W, the Si inflow ratio η with respect to the catalyst weight is represented by the following equation.
【０００６】 η＝Ｆ・Ｃ・ｔ／Ｗ×１００ （１） 本発明は、以上の問題点を解決することができる溶剤含
有ガスの触媒燃焼装置を提供しようとするものである。Η = F · C · t / W × 100 (1) The present invention is intended to provide a catalytic combustion apparatus for solvent-containing gas that can solve the above problems.
【０００７】[0007]
【課題を解決するための手段】本発明の溶剤含有ガスの
触媒燃焼装置は、溶剤含有ガス中の溶剤成分を吸着し同
溶剤成分を脱着して溶剤成分が濃縮された回収ガスを得
る溶剤吸着装置、前記回収ガスを燃焼させる触媒燃焼
器、および前記触媒燃焼器内の温度の制御装置よりな
る。A catalytic combustion apparatus for a solvent-containing gas according to the present invention is a solvent adsorption apparatus for adsorbing a solvent component in a solvent-containing gas and desorbing the solvent component to obtain a recovered gas in which the solvent component is concentrated. An apparatus, a catalytic combustor for combusting the recovered gas, and a controller for controlling the temperature in the catalytic combustor.
【０００８】[0008]
【作用】本発明では、溶剤含有ガス中の溶剤成分は、吸
着装置で吸着された上脱着され、溶剤成分が濃縮された
回収ガスが得られる。この回収ガスは触媒燃焼器で燃焼
されるが、同回収ガス中の溶剤成分が濃縮されているた
めに、燃焼時の発熱量が増大し、触媒燃焼器における燃
焼温度が上昇する。しかも、触媒燃焼器内の温度は制御
装置によって、ほゞ一定温度に維持される。In the present invention, the solvent component in the solvent-containing gas is adsorbed by the adsorption device and then desorbed to obtain the recovered gas in which the solvent component is concentrated. The recovered gas is burned in the catalytic combustor, but since the solvent component in the recovered gas is concentrated, the calorific value at the time of combustion increases, and the combustion temperature in the catalytic combustor rises. Moreover, the temperature inside the catalytic combustor is maintained at a substantially constant temperature by the control device.
【０００９】このように、触媒燃焼器内の温度を高く維
持することによって、同燃焼器内の触媒の劣化が防止さ
れる。As described above, by maintaining the temperature in the catalytic combustor high, deterioration of the catalyst in the combustor is prevented.
【００１０】また、触媒燃焼器では、回収ガス中の濃縮
された溶剤成分が燃焼することによって、運転初期以外
には助燃剤を必要としない。Further, in the catalytic combustor, since the concentrated solvent component in the recovered gas burns, the combustion improver is not required except in the initial stage of operation.
【００１１】[0011]
【実施例】本発明の一実施例を、図１によって説明す
る。２は吸着層をもち連続的に回転する溶剤の吸着装置
で、トルエン、キシレン等の溶剤を含有する印刷工場等
の溶剤を回収した処理溶剤ガス１が同吸着装置２に供給
される。同吸着装置２の出口側には溶剤が回収された排
ガスライン３が接続され、同排ガスライン３は煙突４に
接続されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG. Reference numeral 2 denotes an adsorbing device for a solvent which has an adsorbing layer and is continuously rotated, and a processing solvent gas 1 in which a solvent such as a printing factory containing a solvent such as toluene or xylene is recovered is supplied to the adsorbing device 2. An exhaust gas line 3 from which the solvent has been recovered is connected to the outlet side of the adsorption device 2, and the exhaust gas line 3 is connected to a chimney 4.
【００１２】前記吸着装置２には、その一側に再生熱交
換器６へ経て空気等の脱着ガス５を供給する脱着ガスラ
イン７が、またその他側に回収ガスライン８が接続され
ている。この回収ガスライン８は、再生熱交換器９を経
て触媒燃焼器１１に接続されている。また、回収ガスラ
イン８には、前記再生熱交換器９をバイパスし流量調節
弁１０をもつバイパスライン８ａが付設されている。A desorption gas line 7 for supplying a desorption gas 5 such as air through a regenerative heat exchanger 6 is connected to one side of the adsorption device 2, and a recovery gas line 8 is connected to the other side thereof. The recovered gas line 8 is connected to a catalytic combustor 11 via a regenerative heat exchanger 9. Further, the recovery gas line 8 is provided with a bypass line 8a that bypasses the regenerative heat exchanger 9 and has a flow rate control valve 10.
【００１３】前記触媒燃焼器１１には、Ｐｔ等の酸化触
媒を充填した触媒層１２が内蔵されており、その出口側
の燃焼ガスライン１５には温度計１４が設けられ、同燃
焼ガスライン１５は、前記再生熱交換器９と前記再生熱
交換器６を経て前記排ガスライン３に分流している。The catalytic combustor 11 contains a catalyst layer 12 filled with an oxidation catalyst such as Pt, and a combustion gas line 15 on the outlet side thereof is provided with a thermometer 14 and the combustion gas line 15 is provided. Is diverted to the exhaust gas line 3 via the regenerative heat exchanger 9 and the regenerative heat exchanger 6.
【００１４】前記の流量調節弁１０は前記温度計１４の
信号によって制御されるようになっており、前記のバイ
パスライン８ａ、流量調節弁１０および温度計１４によ
って、触媒燃焼器１１内の温度の制御装置が構成されて
いる。The flow rate control valve 10 is controlled by a signal from the thermometer 14, and the bypass line 8a, the flow rate control valve 10 and the thermometer 14 control the temperature inside the catalytic combustor 11. A controller is configured.
【００１５】なお、１３は触媒燃焼器１３へ供給されＬ
ＰＧ等の助燃ガスである。In addition, 13 is supplied to the catalytic combustor 13 and L
It is an auxiliary gas such as PG.
【００１６】本実施例において、処理溶剤ガス１は、連
続的に回転する吸着装置２に導入され、トルエン等の溶
剤成分が吸着層に吸着された後、排ガスとして排ガスラ
イン３を経て煙突４から大気へ放出される。In this embodiment, the treatment solvent gas 1 is introduced into an adsorbing device 2 which continuously rotates, and after a solvent component such as toluene is adsorbed on the adsorption layer, it is discharged as an exhaust gas through an exhaust gas line 3 from a chimney 4. Released into the atmosphere.
【００１７】一方、予め再生熱交換器６にて昇温され加
熱された脱着ガス５を脱着ガスライン７から吸着装置２
へ導入し、同脱着ガス５によって吸着された溶剤成分が
吸着層から脱着されて回収ガスが発生する。この場合の
脱着ガス５の流量を処理溶剤ガス１の１／１０程度とす
ることにより、回収ガス中の溶剤成分濃度を１０倍程度
に濃縮し、数１０００ｐｐｍ程度とする。On the other hand, the desorption gas 5 heated in advance by the regenerative heat exchanger 6 is adsorbed by the adsorption device 2 from the desorption gas line 7.
The solvent component adsorbed by the desorption gas 5 is desorbed from the adsorption layer to generate a recovery gas. In this case, the flow rate of the desorption gas 5 is set to about 1/10 of that of the processing solvent gas 1, so that the concentration of the solvent component in the recovered gas is concentrated about 10 times to about several 1000 ppm.
【００１８】回収ガスは回収ガスライン８へ導入され、
その大部分は、再生熱交換器９により昇温された後、触
媒燃焼器１１に導入される。また、バイパスライン８ａ
を流れる回収ガスの一部は、触媒燃焼器１１内の温度調
整を行うために、触媒層出口温度を温度計１４によって
１４の検出をし、この温度を５００℃程度に保つように
流量調節弁１０によって流量を調整されて触媒燃焼器１
１に導入される。なお、触媒燃焼器１１では運転開始初
期における昇温のためにＬＰＧ等の助燃ガス１３を導入
するが、定常運転後には、以下説明するように回収ガス
中の溶剤成分が燃焼してこの助燃ガスは必要としない。The recovered gas is introduced into the recovered gas line 8,
Most of the temperature is raised by the regenerative heat exchanger 9 and then introduced into the catalytic combustor 11. Also, the bypass line 8a
In order to adjust the temperature inside the catalyst combustor 11, a part of the recovered gas flowing through is detected by the thermometer 14 as the catalyst layer outlet temperature, and the flow rate control valve is set to maintain this temperature at about 500 ° C. The flow rate is adjusted by 10 and the catalytic combustor 1
Introduced in 1. In the catalytic combustor 11, the auxiliary combustion gas 13 such as LPG is introduced to raise the temperature at the beginning of the operation, but after the steady operation, the solvent component in the recovered gas is burned and the auxiliary combustion gas is generated as described below. Does not need.
【００１９】触媒燃焼器１１内には、Ｐｔ触媒等の酸化
触媒を充填した触媒層１２を有しており、ここで回収ガ
ス中の溶剤成分の触媒燃焼が行われる。燃焼後の燃焼ガ
スは、燃焼ガスライン１５へ入って再生熱交換器９によ
り前記回収ガスと熱交換されて冷却された後、さらに再
生熱交換器６にて前記脱着ガスと熱交換されることによ
り熱回収が行われた後に、燃焼排ガスライン１７を通っ
て排ガスライン３へ入り、排ガスと混合されて煙突４へ
と導かれて、大気へ放出される。この触媒燃焼器１１に
おける回収ガス中の溶剤成分の燃焼においては、前記流
量調節弁１０の制御によって、燃焼温度が５００℃程度
の一定値が維持される。The catalyst combustor 11 has a catalyst layer 12 filled with an oxidation catalyst such as a Pt catalyst, where the solvent component in the recovered gas is catalytically combusted. The combustion gas after combustion enters the combustion gas line 15, is heat-exchanged with the recovered gas by the regenerative heat exchanger 9 and is cooled, and is further heat-exchanged with the desorbed gas by the regenerative heat exchanger 6. After the heat is recovered by the above, it enters the exhaust gas line 3 through the combustion exhaust gas line 17, is mixed with the exhaust gas, is guided to the chimney 4, and is discharged to the atmosphere. In the combustion of the solvent component in the recovered gas in the catalytic combustor 11, the combustion temperature is maintained at a constant value of about 500 ° C. by the control of the flow rate control valve 10.
【００２０】以上のように、本実施例では、触媒燃焼器
１１の燃焼温度が５００℃程度の高い値に維持されるた
めに、触媒層１２の酸化触媒は、シリカ等による被毒が
防止されて劣化が防止され、その使用期間を長くするこ
とができる。As described above, in this embodiment, since the combustion temperature of the catalytic combustor 11 is maintained at a high value of about 500 ° C., the oxidation catalyst of the catalyst layer 12 is prevented from being poisoned by silica or the like. As a result, deterioration can be prevented and the usage period can be extended.
【００２１】[0021]
【発明の効果】本発明においては、溶剤含有ガスからの
回収ガス中の溶剤成分の濃度を高くし、触媒燃焼器での
燃焼温度を高くすることを可能としたことにより、触媒
のシリカ等による被毒を防止して触媒の使用期間を延長
することができるとともに、助燃剤の消費量を削減する
ことができる。According to the present invention, the concentration of the solvent component in the recovered gas from the solvent-containing gas can be increased, and the combustion temperature in the catalytic combustor can be increased. It is possible to prevent poisoning, extend the period of use of the catalyst, and reduce the consumption of the combustion improver.
【図１】本発明の一実施例に係る溶剤含有ガスの触媒燃
焼装置の構成図である。FIG. 1 is a configuration diagram of a catalytic combustion apparatus for solvent-containing gas according to an embodiment of the present invention.
【図２】触媒の被毒性と燃焼温度の関係を示すグラフで
ある。FIG. 2 is a graph showing a relationship between poisoning of a catalyst and combustion temperature.
１ 処理溶剤ガス ２ 吸着装置 ３ 排ガスライン ４ 煙突 ５ 脱着ガス ６ 再生熱交換器 ７ 脱着ガスライン ８ 回収ガスライン ８ａ バイパスライン ９ 再生熱交換器 １０ 流量調節弁 １１ 触媒燃焼器 １２ 触媒層 １３ 助燃ガス １４ 温度計 １５ 燃焼ガスライン 1 Processing Solvent Gas 2 Adsorption Device 3 Exhaust Gas Line 4 Chimney 5 Desorption Gas 6 Regeneration Heat Exchanger 7 Desorption Gas Line 8 Recovery Gas Line 8a Bypass Line 9 Regeneration Heat Exchanger 10 Flow Control Valve 11 Catalytic Combustor 12 Catalyst Layer 13 Supporting Gas 14 Thermometer 15 Combustion gas line
───────────────────────────────────────────────────── フロントページの続き (72)発明者 畑野 茂和 兵庫県高砂市荒井町新浜二丁目１番１号 三菱重工業株式会社高砂研究所内 (72)発明者 滝本 新一 神戸市兵庫区和田崎町一丁目１番１号 三 菱重工業株式会社神戸造船所内 (72)発明者 西田 清則 兵庫県高砂市荒井町新浜二丁目８番25号 高菱エンジニアリング株式会社内 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Shigekazu Hatano 1-1-1, Niihama, Arai-cho, Takasago, Hyogo Prefecture Mitsubishi Heavy Industries, Ltd. Takasago Research Institute (72) Inventor Shinichi Takimoto, Wadazaki-cho, Hyogo-ku, Kobe 1-chome 1-1 Sanryo Heavy Industries Co., Ltd. Kobe Shipyard (72) Inventor Kiyonori Nishida 2-8-25 Niihama, Arai-cho, Takasago, Hyogo Prefecture Takahishi Engineering Co., Ltd.
Claims (1)
剤成分を脱着して溶剤成分が濃縮された回収ガスを得る
溶剤吸着装置、前記回収ガスを燃焼させる触媒燃焼器、
および前記媒燃焼器内の温度の制御装置よりなることを
特徴とする溶剤含有ガスの触媒燃焼装置。1. A solvent adsorption device for adsorbing a solvent component in a solvent-containing gas and desorbing the solvent component to obtain a recovered gas in which the solvent component is concentrated, a catalytic combustor for burning the recovered gas,
And a catalyst combustion device for a solvent-containing gas, comprising a controller for controlling the temperature in the medium combustor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3292936A JPH05123529A (en) | 1991-11-08 | 1991-11-08 | Catalytic combustion device for solvent-containing gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3292936A JPH05123529A (en) | 1991-11-08 | 1991-11-08 | Catalytic combustion device for solvent-containing gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05123529A true JPH05123529A (en) | 1993-05-21 |
Family
ID=17788335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3292936A Pending JPH05123529A (en) | 1991-11-08 | 1991-11-08 | Catalytic combustion device for solvent-containing gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05123529A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003103135A (en) * | 2001-09-28 | 2003-04-08 | Takasago Thermal Eng Co Ltd | Air filter |
| JP2009219948A (en) * | 2008-03-13 | 2009-10-01 | Tsukishima Kankyo Engineering Ltd | Treatment apparatus and treating method of voc-containing gas |
| WO2012020755A1 (en) * | 2010-08-11 | 2012-02-16 | 東洋紡績株式会社 | Waste water treatment system |
| JP2012035232A (en) * | 2010-08-11 | 2012-02-23 | Toyobo Co Ltd | Wastewater treatment system |
| JP2012040479A (en) * | 2010-08-17 | 2012-03-01 | Toyobo Co Ltd | Wastewater treatment system |
| JP2012040534A (en) * | 2010-08-23 | 2012-03-01 | Toyobo Co Ltd | Wastewater treatment system |
| JP2012081444A (en) * | 2010-10-14 | 2012-04-26 | Toyobo Co Ltd | Catalytic combustion apparatus and method for regenerating catalyst |
-
1991
- 1991-11-08 JP JP3292936A patent/JPH05123529A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003103135A (en) * | 2001-09-28 | 2003-04-08 | Takasago Thermal Eng Co Ltd | Air filter |
| JP2009219948A (en) * | 2008-03-13 | 2009-10-01 | Tsukishima Kankyo Engineering Ltd | Treatment apparatus and treating method of voc-containing gas |
| WO2012020755A1 (en) * | 2010-08-11 | 2012-02-16 | 東洋紡績株式会社 | Waste water treatment system |
| JP2012035232A (en) * | 2010-08-11 | 2012-02-23 | Toyobo Co Ltd | Wastewater treatment system |
| CN103068740A (en) * | 2010-08-11 | 2013-04-24 | 东洋纺株式会社 | Waste water treatment system |
| CN104649448A (en) * | 2010-08-11 | 2015-05-27 | 东洋纺株式会社 | Waste water treatment system |
| JP2012040479A (en) * | 2010-08-17 | 2012-03-01 | Toyobo Co Ltd | Wastewater treatment system |
| JP2012040534A (en) * | 2010-08-23 | 2012-03-01 | Toyobo Co Ltd | Wastewater treatment system |
| JP2012081444A (en) * | 2010-10-14 | 2012-04-26 | Toyobo Co Ltd | Catalytic combustion apparatus and method for regenerating catalyst |
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