JPS6174621A - Recovering apparatus of solvent having low boiling point - Google Patents

Recovering apparatus of solvent having low boiling point

Info

Publication number
JPS6174621A
JPS6174621A JP59196654A JP19665484A JPS6174621A JP S6174621 A JPS6174621 A JP S6174621A JP 59196654 A JP59196654 A JP 59196654A JP 19665484 A JP19665484 A JP 19665484A JP S6174621 A JPS6174621 A JP S6174621A
Authority
JP
Japan
Prior art keywords
solvent
activated carbon
boiling point
outlet
air
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
Application number
JP59196654A
Other languages
Japanese (ja)
Inventor
Shigeru Fujita
繁 藤田
Yasuo Seki
関　康雄
Shusaku Izumi
和泉　修作
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP59196654A priority Critical patent/JPS6174621A/en
Publication of JPS6174621A publication Critical patent/JPS6174621A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To recover effectively a solvent having low b.p. by adsorbing solvent- contg. air on an adsorbent at the temp. lower than b.p. of the solvent and drying the adsorbent after desorbing the solvent to remove water content. CONSTITUTION:Air 9 contg. a solvent is fed to a cooler 5 of gaseous solvent by a blower 7 and introduced to an activated carbon adsorption-desorption appratus 1 while making the gas temp. b.p. and below. After the solvent is adsorbed on the activated carbon incorporated in the adsorption-desorption apparatus, the adsorbed gaseous solvent is desorbed by feeding steam of temp. higher than b.p. of the solvent from a steam inlet 12 and discharging it from a steam outlet 14. Thereafter the gaseous solvent is liquified by flowing the cooling water from a cooling water inlet 13 to an outlet 15 and it is recovered in a solvent separator 4 via an outlet 11 of the recovered solvent. Air is fed by a blower 3 to the adsorption-desorption apparatus via a heater 2 for drying and thereby the vapor and water content stuck on the activated carbon are dried.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は溶剤回収装置に係り、特に低沸点溶剤回収装置
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a solvent recovery device, and particularly to a low boiling point solvent recovery device.

〔発明の背景〕[Background of the invention]

従来、溶剤回収は、溶剤ガスを含む空気を活性炭層を通
して吸着させ、この溶剤ガス吸着活性炭を加熱して溶剤
ガスを脱着させ、この脱着した溶剤ガスを沸点以下の温
度に冷却させて液状にして回収していた。Conventionally, solvent recovery involves adsorbing air containing solvent gas through an activated carbon layer, heating the solvent gas adsorbing activated carbon to desorb the solvent gas, and cooling the desorbed solvent gas to a temperature below its boiling point to liquefy it. It was being collected.

しかし、活性炭は溶剤ガス脱着後に水分を吸着し、これ
が沸点７０６Ｃ未満の溶剤の吸着能力を低下させていた
（「化学装置百科辞典」第７７頁　昭和４６年７月発行
）。However, activated carbon adsorbs water after desorbing the solvent gas, which reduces its ability to adsorb solvents with boiling points below 706C ("Chemical Equipment Encyclopedia", p. 77, published in July 1972).

〔発明の目的〕[Purpose of the invention]

本発明の目的は前記した従来技術の欠点をなくし、沸点
７０°Ｃ未満の溶剤を効率良く回収する装置を提供する
にある。SUMMARY OF THE INVENTION An object of the present invention is to eliminate the drawbacks of the prior art described above and to provide an apparatus for efficiently recovering a solvent having a boiling point of less than 70°C.

〔発明の概要〕[Summary of the invention]

そして本発明は、（ａ）溶剤を含む空気を溶剤の沸点よ
り低い温度で吸着剤に吸着させると共に（ｂ）溶剤脱着
後の吸着剤を乾燥して水分を除去することによって達成
される。The present invention is achieved by (a) adsorbing air containing a solvent onto an adsorbent at a temperature lower than the boiling point of the solvent, and (b) drying the adsorbent after the solvent has been desorbed to remove moisture.

以下、本発明を図を用いて詳細ζこ説明する。Hereinafter, the present invention will be explained in detail using the drawings.

〔発明の実施例〕[Embodiments of the invention]

発生源より送られてきた溶剤ガス９を含む空気をプロワ
−７で溶剤ガス冷却器５へ送り入み冷凍機６で冷却した
冷媒を冷却コイル１０に通しガスの温度を沸点以下にし
た。そしてこれを活性炭吸脱着装置１へ導いた。活性炭
吸脱着装置１内の活性炭（図示せず）に溶剤を吸着させ
た後、蒸気人口１２より溶剤の沸点以上の温度の蒸気を
送り込み蒸気出口１４より放出し、吸着している溶剤ガ
スを脱着した。その後冷却水人口１３より冷却水を通し
、冷却水出口１５より放出し、溶剤ガスを液化させ、回
収溶剤出口１１を経て溶剤分離装置４へ回収した。溶剤
回収後の非常に薄い溶剤ガスを含む空気を、外気放出口
１６から大気放出し、ブロワ−３で空気送り込み口８か
ら乾燥用ヒーター２を経由して５０〜１００°Ｃの空気
で活性炭吸脱着装置１内の活性炭表面に付着している蒸
気水分を乾燥させて、本装置の一サイクルが終了した。Air containing a solvent gas 9 sent from a generation source is sent to a solvent gas cooler 5 by a blower 7, and the refrigerant cooled by a refrigerator 6 is passed through a cooling coil 10 to bring the temperature of the gas below the boiling point. This was then led to the activated carbon adsorption/desorption device 1. After the solvent is adsorbed on the activated carbon (not shown) in the activated carbon adsorption/desorption device 1, steam with a temperature higher than the boiling point of the solvent is sent from the steam outlet 12 and released from the steam outlet 14 to desorb the adsorbed solvent gas. did. Thereafter, cooling water was passed through the cooling water port 13 and discharged from the cooling water outlet 15 to liquefy the solvent gas, which was then recovered to the solvent separator 4 through the recovered solvent outlet 11. After recovering the solvent, the air containing very dilute solvent gas is released into the atmosphere from the outside air outlet 16, and the activated carbon is absorbed with air at 50 to 100°C via the drying heater 2 from the air inlet 8 using the blower 3. One cycle of this device was completed by drying the steam moisture adhering to the surface of the activated carbon in the desorption device 1.

ニサイクル目以降は前述の順に作業を行うが実際の装置
は、シーケンサ−により前述の作業を自動的に繰り返し
運転を行っている。From the second cycle onwards, the operations are performed in the order described above, but in actual equipment, a sequencer automatically repeats the operations described above.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、従来列んど行われなかった低沸点溶剤
を効果的に回収でき、大気汚染を阻止することができる
。According to the present invention, low boiling point solvents can be effectively recovered, which has not been done in the past, and air pollution can be prevented.

【図面の簡単な説明】[Brief explanation of drawings]

図は本発明の一実施例に係る低沸点溶剤回収装置の構成
図である。 １・・・活性炭吸脱着装置 ２・・・乾燥用ヒーター　３・・・ブロワ−４・・・溶
剤分離装置　　５・・・溶剤ガス冷却器６・・・冷凍機 ７・・・溶剤ガス送り込み用プロワ− ８・・・空気送り込み口 ９・・・溶剤ガスを含む空気 １０・・冷却コイル　　　１１・・・回収溶剤出口１２
・・・蒸気人口　　　　１３・・・冷却水人口１４・・
・蒸気出口　　　　１５・・・冷却水出口１６・・・外
気放出口The figure is a configuration diagram of a low boiling point solvent recovery device according to an embodiment of the present invention. 1... Activated carbon adsorption/desorption device 2... Drying heater 3... Blower 4... Solvent separation device 5... Solvent gas cooler 6... Freezer 7... For feeding solvent gas Prower 8...Air inlet 9...Air containing solvent gas 10...Cooling coil 11...Recovered solvent outlet 12
...Steam population 13...Cooling water population 14...
・Steam outlet 15...Cooling water outlet 16...Outside air release port

Claims (1)

【特許請求の範囲】[Claims] 溶剤ガスを含む空気中の溶剤ガスを溶剤ガスの沸点より
低い温度で吸着剤に吸着させる溶剤ガス吸着部と、この
吸着部で吸着したガスを脱着してから吸着剤を加熱する
加熱部よりなることを特徴とする低沸点溶剤回収装置。Consists of a solvent gas adsorption section that adsorbs solvent gas in the air containing solvent gas onto an adsorbent at a temperature lower than the boiling point of the solvent gas, and a heating section that desorbs the gas adsorbed in this adsorption section and then heats the adsorbent. A low boiling point solvent recovery device characterized by:
JP59196654A 1984-09-21 1984-09-21 Recovering apparatus of solvent having low boiling point Pending JPS6174621A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59196654A JPS6174621A (en) 1984-09-21 1984-09-21 Recovering apparatus of solvent having low boiling point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59196654A JPS6174621A (en) 1984-09-21 1984-09-21 Recovering apparatus of solvent having low boiling point

Publications (1)

Publication Number Publication Date
JPS6174621A true JPS6174621A (en) 1986-04-16

Family

ID=16361371

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59196654A Pending JPS6174621A (en) 1984-09-21 1984-09-21 Recovering apparatus of solvent having low boiling point

Country Status (1)

Country Link
JP (1) JPS6174621A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0747581A1 (en) * 1995-06-06 1996-12-11 Johnson Matthey Public Limited Company Improvements in emissions control
ES2243139A1 (en) * 2004-05-13 2005-11-16 Universidad Complutense De Madrid Filtration, absorption and drying stationary and fluidised beds combination includes a fluid ascent system with feed of drying air and two stage absorption
CN111437690A (en) * 2020-04-01 2020-07-24 安徽晋煤中能化工股份有限公司 Organic waste gas treatment system for producing hydrogen peroxide by anthraquinone process

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5269869A (en) * 1975-12-08 1977-06-10 Daikin Ind Ltd Organic solvent recovering apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5269869A (en) * 1975-12-08 1977-06-10 Daikin Ind Ltd Organic solvent recovering apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0747581A1 (en) * 1995-06-06 1996-12-11 Johnson Matthey Public Limited Company Improvements in emissions control
ES2243139A1 (en) * 2004-05-13 2005-11-16 Universidad Complutense De Madrid Filtration, absorption and drying stationary and fluidised beds combination includes a fluid ascent system with feed of drying air and two stage absorption
CN111437690A (en) * 2020-04-01 2020-07-24 安徽晋煤中能化工股份有限公司 Organic waste gas treatment system for producing hydrogen peroxide by anthraquinone process

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