To provide an anesthetic agent which can efficiently recover an anesthetic agent from a gas to be treated containing moisture and a high concentration of anesthetic gas and liquefy it so that it can be reused, used for an animal management center or the like for killing small animals, Provided is an anesthetic gas recovery device which is also useful for improving handling such as transportation and storage after collection of the agent.SOLUTION: The anesthetic gas recovery apparatus A comprises a compressor 1 for compressing a gas to be treated, a pre-cooler 2 for preliminarily cooling the gas to be treated compressed by the compressor 1, a condenser A first collection container 3 for recovering the obtained anesthetic solution and water by forming an anesthetic liquid in the lower layer and a layer in which the upper layer is water, a cooler 4 for cooling the residual gas processed in the pre-cooler 2, a cooler 4, a second collection container 6 for collecting the anesthetic solution and water obtained by condensation via a liquid supply route R 6 having a valve 7, a preliminary cooler 2 and a cold heat source of the cooler 4 A chiller unit 5, and an exhaust path R 5 for discharging the treated gas cooled by the cooler 4.(FIG.【課題】動物管理センター等で小動物の殺処分に使用された、湿分と高濃度の麻酔性ガスを含む被処理ガスから麻酔剤を効率よく回収し再利用可能に液化することができ、麻酔剤の回収後の搬送や保管等の取り扱い性の向上にも有用な麻酔性ガス回収装置を提供する。【解決手段】麻酔性ガス回収装置Aは、被処理ガスを圧縮する圧縮機1、圧縮機1で圧縮された被処理ガスを予備的に冷却する予冷却器2、予冷却器2で凝縮によって得られた麻酔液と水を下層が麻酔液で上層が水である層を成して回収する第1の回収容器3、予冷却器2で処理した残ガスを冷却する冷却器4、冷却器4で凝縮によって得られた麻酔液と水を、バルブ7を有する送液経路R6を介し、層を成して回収する第2の回収容器6、予冷却器2と冷却器4の冷熱源であるチラーユニット5、冷却器4で冷却処理した処理済ガスを放出する排気経路R5、を備えている。【選択図】図1
