JPH044009B2 - - Google Patents
Info
- Publication number
- JPH044009B2 JPH044009B2 JP56157744A JP15774481A JPH044009B2 JP H044009 B2 JPH044009 B2 JP H044009B2 JP 56157744 A JP56157744 A JP 56157744A JP 15774481 A JP15774481 A JP 15774481A JP H044009 B2 JPH044009 B2 JP H044009B2
- Authority
- JP
- Japan
- Prior art keywords
- adsorption
- desorption
- organic solvent
- desorption device
- primary
- 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.)
- Expired - Lifetime
Links
- 238000002336 sorption--desorption measurement Methods 0.000 claims description 54
- 238000001179 sorption measurement Methods 0.000 claims description 49
- 239000003960 organic solvent Substances 0.000 claims description 39
- 238000003795 desorption Methods 0.000 claims description 37
- 238000009833 condensation Methods 0.000 claims description 13
- 230000005494 condensation Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 4
- 239000002904 solvent Substances 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000003463 adsorbent Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
Description
【発明の詳細な説明】
本発明は有機溶剤等の回収効率が高い連続循環
式有機溶剤吸脱着装置に関し、詳細には１次有機
溶剤吸脱着装置の脱着排気ラインに設けた凝縮装
置からの非凝縮排気を、別途設けた２次有機溶剤
吸脱着装置に導き、該装置からの脱着排気を凝縮
させた上で、非凝縮ガスを１次有機溶剤吸脱着装
置に再循環させる連続循環式有機溶剤吸脱着装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a continuous circulation type organic solvent adsorption/desorption device with high recovery efficiency of organic solvents, and more specifically, to Continuous circulation type organic solvent in which the condensed exhaust gas is guided to a separately provided secondary organic solvent adsorption/desorption device, the desorption exhaust gas from the device is condensed, and the non-condensed gas is recirculated to the primary organic solvent adsorption/desorption device. This relates to an adsorption/desorption device.
気化した有機溶剤の回収や空気中の有害成分の
除去等の目的で、これらを吸着材等で処理する装
置の基本構成を概念的に示すと第１図の様に表わ
すことができる。即ち、粉状活性炭等の吸着材を
充填した吸着槽１，２を図示の如く隣設すると共
にこれらを図の様にクロスさせた配管で結び、吸
着と脱着を交互に繰り返すものであつて、弁３，
４を閉、弁５，６を開にしておけば被処理ガスＧ
は矢印Ａ，A′，A″方向に流れ、吸着槽１におい
て吸着が行なわれる。このとき吸着槽２側におい
て弁７，８を閉、弁９，１０を開にしておけば脱
着用ガス（通常スチーム）Ｓが矢印Ｂ，B′，
B″方向に流れ脱着が行なわれ、脱着排ガスの処
理装置、例えば凝縮装置１１に送られる。そして
一定時間が経過すると前記弁の開閉を全て逆転
し、吸着槽１側で脱着、吸着槽２側で吸着が行な
われる。 The basic structure of an apparatus for treating vaporized organic solvents with an adsorbent or the like for the purpose of recovering vaporized organic solvents or removing harmful components in the air can be conceptually shown in FIG. 1. That is, adsorption tanks 1 and 2 filled with adsorbent such as powdered activated carbon are placed next to each other as shown in the figure, and they are connected by crossed piping as shown in the figure to alternately repeat adsorption and desorption. valve 3,
4 is closed and valves 5 and 6 are open, the gas to be treated G
flows in the directions of arrows A, A', A'', and adsorption is performed in the adsorption tank 1. At this time, if the valves 7 and 8 are closed and the valves 9 and 10 are opened on the adsorption tank 2 side, the desorption gas ( Normal steam) S is arrow B, B',
B'' direction, desorption is performed and the desorbed exhaust gas is sent to a processing device, for example, the condensing device 11. After a certain period of time, the opening and closing of the valves are all reversed, and desorption occurs on the adsorption tank 1 side, and desorption takes place on the adsorption tank 2 side. Adsorption takes place.
しかるに上記形式の装置には次の様な欠点があ
る。即ち図から明らかなように多数の弁を設ける
必要があつて操作が複雑であるだけでなく、例え
ば弁３や弁１０が開いていないにもかかわらず誤
動作や故障等の為に脱着用ガスが吹込まれると、
吸着槽１，２内は過圧状態となり、爆発等の危険
に曝される。 However, the above type of device has the following drawbacks. That is, as is clear from the figure, not only is it necessary to provide a large number of valves, which complicates the operation, but also, for example, even though valve 3 and valve 10 are not open, there is a possibility that the desorption gas may leak due to a malfunction or failure. When it is blown into
The interiors of the adsorption tanks 1 and 2 become overpressured, exposing them to dangers such as explosion.
そこで上記欠点を解決することが望まれ、本出
願人は第２図に示す様な連続式有機溶剤吸脱着装
置を提案している（特公昭54−30917）。本装置１
２には分配室１３、吸着室１４，１５及び集合室
１６が画成され、吸着室１４，１５には活性炭素
繊維等からなる吸着材２６，２７が配置されてい
る。又各吸着室１４，１５の入口１９，２０及び
出口２１，２２には脱着ガス排出管１７，１７ａ
及び脱着ガス導入管１８，１８ａを設け、これら
は作動用エアシリンダ２３によつて、図面の上下
方向に移動可能とする。そして図では排出管１７
と導入管１８が吸着室１４に圧接されているので
脱着ガスＳはフレキシブルホースから吸着室１４
に入つて脱着が行なわれ被処理ガスＧは入口２０
から吸着室１５に入り吸着が行なわれた後、出口
２２から放出される。従つて本装置の場合は脱着
ガス排出管や脱着ガス導入管の接続を誤つても前
述の如く装置内を過圧にする恐れがなく、爆発等
の危険はない。ところが更に研究を進めている内
に第１，２図の装置において共通の欠点があるこ
とが分かつた。即ち凝縮装置１１における脱着溶
剤の回収は、スチーム中に拡散された気化溶剤を
冷却凝縮することによつて行なわれるものである
から、処理対象が低沸点溶剤の場合を考えると、
一般的冷媒による冷却では十分な凝縮が行なわれ
ず、相当量の溶剤が非凝縮のままで矢印S′方向に
排出されてしまう。又溶剤濃度が希薄であるとき
も凝縮不十分になり易く、同じ様に放出量が増大
する。従つて上記各装置では特に低沸点有機溶剤
や低濃度有機溶剤を回収対象とする場合の回収率
が悪く、該回収率換言すれば有害成分除去率を向
上させる余地が残されていた。特に低沸点有機溶
剤の低濃度混入ガスを処理対象とするときは、凝
縮分離が不十分になり易く上述の傾向が強かつ
た。 Therefore, it is desired to solve the above-mentioned drawbacks, and the present applicant has proposed a continuous organic solvent adsorption/desorption device as shown in FIG. 2 (Japanese Patent Publication No. 30917/1983). This device 1
A distribution chamber 13, adsorption chambers 14 and 15, and a collection chamber 16 are defined in the adsorption chamber 2, and adsorption materials 26 and 27 made of activated carbon fiber or the like are arranged in the adsorption chambers 14 and 15. In addition, desorption gas exhaust pipes 17, 17a are provided at the inlets 19, 20 and outlets 21, 22 of each adsorption chamber 14, 15.
and desorption gas introduction pipes 18, 18a are provided, which are movable in the vertical direction of the drawing by an operating air cylinder 23. And in the figure, the discharge pipe 17
Since the introduction pipe 18 is in pressure contact with the adsorption chamber 14, the desorption gas S is transferred from the flexible hose to the adsorption chamber 14.
The gas to be treated G enters the inlet 20 for desorption and desorption.
After entering the adsorption chamber 15 and being adsorbed, it is discharged from the outlet 22. Therefore, in the case of this apparatus, even if the desorption gas exhaust pipe or desorption gas introduction pipe is incorrectly connected, there is no risk of overpressure inside the apparatus as described above, and there is no risk of explosion. However, as the research progressed further, it was discovered that the devices shown in Figures 1 and 2 had a common drawback. That is, since the desorption solvent is recovered in the condensing device 11 by cooling and condensing the vaporized solvent diffused in the steam, considering the case where the target to be treated is a low boiling point solvent,
Cooling with a general refrigerant does not result in sufficient condensation, and a considerable amount of the solvent remains uncondensed and is discharged in the direction of arrow S'. Also, when the solvent concentration is dilute, condensation tends to be insufficient, and the amount released also increases. Therefore, in each of the above-mentioned apparatuses, the recovery rate is particularly poor when a low boiling point organic solvent or a low concentration organic solvent is to be recovered, and there remains room for improving the recovery rate, in other words, the removal rate of harmful components. In particular, when a gas mixed with a low concentration of a low boiling point organic solvent is to be treated, condensation and separation tend to be insufficient, and the above-mentioned tendency is strong.
本発明はこうした事情に着目してなされたもの
であつて、有機溶剤吸脱着装置（第１，２図の装
置に限定されない）を含むシステムにおける有機
溶剤の回収率をより高くすることを目的としてな
されたものである。 The present invention has been made in view of these circumstances, and aims to further increase the recovery rate of organic solvents in systems including organic solvent adsorption/desorption devices (not limited to the devices shown in Figures 1 and 2). It has been done.
しかして本発明の有機溶剤吸脱着装置とは、凝
縮装置の排出ラインに、吸着室の脱着工程時に吸
着を行なう２次有機溶剤吸脱着装置を設けると共
に、該２次吸脱着装置には休止期間に該２次吸脱
着装置の脱着用ガスを流通する脱着ガス導入ライ
ンを接続し、さらに該２次吸脱着装置の脱着排出
ラインを前記凝縮装置に接続し、該凝縮装置にお
ける２次吸脱着装置からの脱着排出ラインを前記
１次吸脱着装置の処理ガス導入部に接続し、上記
凝縮装置における前記１次吸脱着装置と２次吸脱
着装置の凝縮をライン切換えする構成としてなる
点に要旨が存在する。 Therefore, the organic solvent adsorption/desorption device of the present invention is provided with a secondary organic solvent adsorption/desorption device in the discharge line of the condensing device to perform adsorption during the desorption process in the adsorption chamber, and the secondary organic solvent adsorption/desorption device is provided with a non-operating period. A desorption gas introduction line through which the desorption gas of the secondary adsorption/desorption device flows is connected to the secondary adsorption/desorption device, and a desorption/discharge line of the secondary adsorption/desorption device is connected to the condensing device. The gist is that the desorption/discharge line from the primary adsorption/desorption device is connected to the process gas introduction part of the primary adsorption/desorption device, and the condensation lines of the primary adsorption/desorption device and the secondary adsorption/desorption device in the condensation device are switched. exist.
以下、本発明の構成及び作用効果を実施例を示
す図面に基づいて説明するが、下記は代表例であ
つて本発明を限定する性質のものではなく、前・
後記の趣旨に適合し得る範囲で適当に変更して実
施することも可能であり、それらは全て本発明の
技術的範囲に含まれる。 Hereinafter, the configuration and effects of the present invention will be explained based on drawings showing examples, but the following are representative examples and do not limit the present invention.
It is also possible to carry out the invention with appropriate changes within the scope of the spirit described below, and all of these are included within the technical scope of the present invention.
第３図は本発明実施例の連続循環式有機溶剤吸
脱着装置を示すフロー図である。該装置は１次有
機溶剤吸脱着装置（希薄ガス用）１２、凝縮装置
１１、２次有機溶剤吸脱着装置（凝縮ガス用）２
９及びこれらを結ぶ配管や切換え手段等からなる
が、１次吸脱着装置１２の構造は第２図に示した
ものと本質的に同様であるから、第３図では詳細
を省略した。但し吸脱着装置自体の構成は本発明
を制限しない。 FIG. 3 is a flow diagram showing a continuous circulation type organic solvent adsorption/desorption device according to an embodiment of the present invention. The device includes a primary organic solvent adsorption/desorption device (for dilute gas) 12, a condensation device 11, and a secondary organic solvent adsorption/desorption device (for condensed gas) 2.
The structure of the primary adsorption/desorption device 12 is essentially the same as that shown in FIG. 2, so the details are omitted in FIG. 3. However, the configuration of the adsorption/desorption device itself does not limit the present invention.
尚第２図の吸脱着装置を運転するに当つては、
被処理ガスの種類や吸着容量によつても異なる
が、一般的には吸着動作を10分間継続した後、排
出管及び導入管を切替えて脱着動作を３分間行な
い、他方側の部屋における吸着時間（10分）が経
過する迄の７分間の休止時間を置いて再度吸着動
作に入るというサイクルを繰り返すことが多いの
で、以下の説明においてはこの様な運転がなされ
るという条件下における操作を中心にして述べ
る。 When operating the adsorption/desorption device shown in Figure 2,
Although it varies depending on the type of gas to be treated and the adsorption capacity, in general, after the adsorption operation continues for 10 minutes, the exhaust pipe and the inlet pipe are switched and the desorption operation is performed for 3 minutes, and the adsorption time in the other room is In many cases, the cycle of restarting suction operation after a 7-minute pause until the end of 10 minutes (10 minutes) has elapsed is repeated, so the following explanation will focus on operations under such conditions. I will explain it as follows.
前述した様な低沸点溶剤を処理対象とするとき
は、凝縮装置からの排出ガス中には有機溶剤が大
量に残存しているので、本発明はこれをそのまま
２次吸脱着装置２９に導入する。２次吸脱着装置
２９は処理容量の少ない分だけ小型になつている
が、かなり高濃度の有機溶剤を含んでいる排出ガ
スが導入されるので、低沸点有機溶剤は１次吸脱
着装置と同様効率よく吸着される。尚凝縮装置１
１からのガス排出は前述の理由によつて３分間で
終了するが、２次吸脱着装置における吸着も同じ
くその３分間で完了し、以後７分間は１次吸脱着
装置からの脱着ガスは排出されてこない。即ち２
次吸脱着装置は１次吸脱着装置と異なつて吸着と
脱着を交互に且つ間欠的に行なうものであるから
吸着室を１つ有するだけでよい。こうして吸着動
作が終了した後の休止期間内に２次吸脱着装置２
９には反対方向から水蒸気S″が導入され、吸着
されていた有機溶剤が脱着され、有機溶剤を高濃
度に含む排出スチームは管路３１を経由して凝縮
装置１１に導入され、有機溶剤が効率良く回収さ
れる。しかるに凝縮装置１１からのこの排気中に
も依然として若干の有機溶剤が含まれているの
で、該排気中の有機溶剤を系外へ排出しない為
に、該排気を１次吸脱着装置１２の被処理ガス導
入管３２へ導き、吸着室１５中へ送られている被
処理ガスに合流させて、再度、吸脱着サイクルに
供する。 When treating low boiling point solvents such as those mentioned above, since a large amount of organic solvent remains in the exhaust gas from the condensing device, the present invention introduces this organic solvent as it is into the secondary adsorption/desorption device 29. . The secondary adsorption/desorption device 29 is smaller due to its smaller processing capacity, but since exhaust gas containing a fairly high concentration of organic solvent is introduced, low boiling point organic solvents can be absorbed in the same way as the primary adsorption/desorption device. Adsorbed efficiently. Furthermore, condensation device 1
The gas discharge from 1 is completed in 3 minutes for the reason mentioned above, but the adsorption in the secondary adsorption/desorption device is also completed in the same 3 minutes, and the desorption gas from the primary adsorption/desorption device is exhausted for the next 7 minutes. It hasn't been done. That is, 2
Unlike the primary adsorption/desorption device, the secondary adsorption/desorption device performs adsorption and desorption alternately and intermittently, so it only needs to have one adsorption chamber. In this way, the secondary adsorption/desorption device 2
9, water vapor S'' is introduced from the opposite direction, and the adsorbed organic solvent is desorbed, and the discharged steam containing a high concentration of organic solvent is introduced into the condensing device 11 via the pipe 31, where the organic solvent is removed. However, since this exhaust gas from the condensing device 11 still contains some organic solvent, in order to prevent the organic solvent in the exhaust gas from being discharged outside the system, the exhaust gas is used for primary suction. The gas is guided to the gas to be treated introduction pipe 32 of the desorption device 12, merged with the gas to be treated that is being sent into the adsorption chamber 15, and subjected to the adsorption/desorption cycle again.
第４図は上記操作をタイムスケジユール的に表
わしたもので、吸着室１４における10分間の吸着
が終了して、吸着室１５が吸着、吸着室１４が脱
着に切りかわると、極めてわずかの時間差をおい
て凝縮装置１１での凝縮及び２次吸脱着装置２９
での吸着が行なわれ、３分経過すると今度は２次
吸脱着装置２９での脱着、続いて凝縮装置１１で
の凝縮が３分間行なわれ、凝縮装置１１の排ガス
は吸着室１５における吸着に供される。従つて２
次吸脱着装置２９による吸脱着が済んでも、この
間６分を費しただけであり、吸着室１５における
吸着が更に４分間続けられる。従つて吸着室１４
の脱着時に温められた吸着材は７分間の休けい中
に十分冷却され、次回の吸着に備える。 FIG. 4 shows the above operation in terms of time schedule. When 10 minutes of adsorption in the adsorption chamber 14 is completed and the adsorption chamber 15 is switched to adsorption and the adsorption chamber 14 is switched to desorption, there is a very small time difference. Condensation in the condensing device 11 and secondary adsorption/desorption device 29
After 3 minutes have passed, desorption takes place in the secondary adsorption/desorption device 29, followed by condensation in the condensing device 11 for 3 minutes, and the exhaust gas from the condensing device 11 is used for adsorption in the adsorption chamber 15. be done. Therefore 2
Even after the adsorption and desorption by the next adsorption/desorption device 29 is completed, only 6 minutes have been spent during this period, and adsorption in the adsorption chamber 15 continues for another 4 minutes. Therefore, the adsorption chamber 14
The adsorbent heated during desorption is sufficiently cooled down during the 7-minute rest period and is ready for the next adsorption.
尚第３図では１次吸脱着装置における吸着室を
２室として説明したが、必要ならば３室以上と
し、脱着の終了後、次回の吸着再開迄の間に十分
な冷却期間を置き、脱着スチームによつて温めら
れた吸着剤を十分に冷却しておくことも好適な例
として推奨される。 In Fig. 3, the adsorption chambers in the primary adsorption/desorption device are explained as two, but if necessary, the number of adsorption chambers can be increased to three or more. It is also recommended as a suitable example that the adsorbent heated by steam be sufficiently cooled.
本発明は概略以上の様に構成されているので、
１次有機溶剤吸脱着装置によつて連続的な吸着を
行なうものでありながら、従来は凝縮装置で液化
しきれずに排出されていた有機溶剤を、系外へ逃
がすことなく再び吸着させ、これを脱着後、凝縮
して回収し、この時の非凝縮分を１次吸脱着装置
に返還して循環的に吸着させることができる。ま
た凝縮装置は１つで足りるので、２次吸脱着装置
を追加するだけで、従つて有機溶剤の回収効率が
向上すると共に、大気中への放散をほとんど無く
することができ、大気汚染の防止に資するところ
も極めて大きい。 Since the present invention is configured as outlined above,
Although continuous adsorption is performed using the primary organic solvent adsorption/desorption device, organic solvents that were previously discharged without being fully liquefied in the condensing device are adsorbed again without escaping out of the system. After desorption, it can be condensed and recovered, and the non-condensed content at this time can be returned to the primary adsorption/desorption device for cyclic adsorption. In addition, since one condensation device is sufficient, simply adding a secondary adsorption/desorption device improves the recovery efficiency of organic solvents and almost eliminates their release into the atmosphere, preventing air pollution. It also has an extremely large contribution to make.
第１図はバルブ切替型の有機溶剤吸脱着装置の
フロー図、第２図は連続式有機溶剤吸脱着装置の
概略説明図、第３図は本発明実施例の連続循環式
有機溶剤吸脱着装置のフロー図、第４図は第３図
装置の運転スケジユール説明グラフである。
１，２……吸着槽、３〜１０……弁、１１……
凝縮装置、１２……１次吸脱着装置、１３……分
配室、１４，１５……吸着室、１６……集合室、
１７……導入管、１８……排出管、２３……エア
シリンダ、２６，２７……吸着材、２９……２次
吸脱着装置。
Fig. 1 is a flow diagram of a valve switching type organic solvent adsorption/desorption device, Fig. 2 is a schematic illustration of a continuous organic solvent adsorption/desorption device, and Fig. 3 is a continuous circulation type organic solvent adsorption/desorption device of an embodiment of the present invention. FIG. 4 is a graph explaining the operation schedule of the device shown in FIG. 3. 1, 2...Adsorption tank, 3-10...Valve, 11...
Condensation device, 12...Primary adsorption/desorption device, 13...Distribution chamber, 14, 15...Adsorption chamber, 16...Collection chamber,
17...Introduction pipe, 18...Discharge pipe, 23...Air cylinder, 26, 27...Adsorption material, 29...Secondary adsorption/desorption device.
Claims (1)
着すると共に、該複数の吸着室を休止期間をはさ
んで間欠的に脱着を行なう１次有機溶剤吸脱着装
置の脱着ラインの排出側に、凝縮装置を設けてな
る連続循環式有機溶剤吸脱着装置であつて、 該凝縮装置の排出ラインに、上記吸着室の脱着
工程時に吸着を行なう２次有機溶剤吸脱着装置を
設けると共に、該２次吸脱着装置には上記休止期
間に該２次吸脱着装置の脱着用ガスを流通する脱
着ガス導入ラインを接続し、さらに該２次吸脱着
装置の脱着排出ラインを前記凝縮装置に接続し、
該凝縮装置における２次吸脱着装置からの脱着排
出ラインを前記１次吸脱着装置の処理ガス導入部
に接続し、上記凝縮装置における前記１次吸脱着
装置と２次吸脱着装置の凝縮をライン切換えする
構成としてなることを特徴とする連続循環式有機
溶剤吸脱着装置。[Claims] 1. A primary organic solvent adsorption/desorption device that is provided with a plurality of adsorption chambers and continuously adsorbs organic solvents, and intermittently desorbs the plurality of adsorption chambers with periods of rest in between. A continuous circulation type organic solvent adsorption/desorption device comprising a condensing device on the discharge side of the desorption line, and a secondary organic solvent adsorption/desorption device that performs adsorption during the desorption process of the adsorption chamber in the discharge line of the condensation device. At the same time, a desorption gas introduction line through which the desorption gas of the secondary adsorption/desorption device flows during the above-mentioned idle period is connected to the secondary adsorption/desorption device, and a desorption/discharge line of the secondary adsorption/desorption device is connected to the desorption/desorption device. Connect to the condensing device,
The desorption/discharge line from the secondary adsorption/desorption device in the condensing device is connected to the process gas introduction part of the primary adsorption/desorption device, and the condensation from the primary adsorption/desorption device and the secondary adsorption/desorption device in the condensing device is connected to the line. A continuous circulation organic solvent adsorption/desorption device characterized by having a switching configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56157744A JPS5858128A (en) | 1981-10-03 | 1981-10-03 | Continuous recirculation type org. solvent adsorbing and desorbing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56157744A JPS5858128A (en) | 1981-10-03 | 1981-10-03 | Continuous recirculation type org. solvent adsorbing and desorbing apparatus |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2214633A Division JPH03242225A (en) | 1990-08-13 | 1990-08-13 | Continuous circulating type adsorbing and desorbing method for organic solvent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5858128A JPS5858128A (en) | 1983-04-06 |
| JPH044009B2 true JPH044009B2 (en) | 1992-01-27 |
Family
ID=15656397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56157744A Granted JPS5858128A (en) | 1981-10-03 | 1981-10-03 | Continuous recirculation type org. solvent adsorbing and desorbing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5858128A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61238314A (en) * | 1985-04-16 | 1986-10-23 | Mitaka Kogyosho:Kk | Method for forming filter material bed in filter machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5353581A (en) * | 1976-10-26 | 1978-05-16 | Japan Steel Works Ltd | Method of removing and recovering dilute solvent gas |
-
1981
- 1981-10-03 JP JP56157744A patent/JPS5858128A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5353581A (en) * | 1976-10-26 | 1978-05-16 | Japan Steel Works Ltd | Method of removing and recovering dilute solvent gas |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5858128A (en) | 1983-04-06 |
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