PRESSURE SWING ADSORPTION DEVICE AND GAS SEPARATION METHOD

• Main Authors: SHIMA KOICHI, IWAMOTO JUNICHI
• Format: Patent
• Language: English; Japanese
• Published: 04.11.2016
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a pressure swing adsorption device and a gas separation method contributing to reducing equipment cost, making operation and maintenance easy and reducing the loss of a separation gas due to the reduction of a dead volume.SOLUTION: A communication flow channel 9 mutually communicating any one of a raw material gas flow channel 3 connected to the supply source of a raw material gas G1 containing an adsorbate, a non-adsorption gas flow channel 4 having the outlet of a non-adsorption gas, a discharge gas flow channel 5 having the outlet of a discharge gas and an adsorption tower and any one of the others is connected to raw material gas connection channels 30a, 30b and 30c, non-adsorption gas connection channels 31a, 31b and 31c, discharge gas connection channels 32a, 32b and 32c and connection channels 33a, 33b and 33c for communication mutually possessed with three or more adsorption towers 2a, 2b and 2c via valves 6a, 6b and 6c for the raw material gas, valves 7a, 7b and 7c for a non-adsorption gas, valves 8a, 8b and 8c for a discharge gas and valves 10a, 10b and 10c for communication. The valves 10a, 10b and 10c for communication have the opening adjustment function and opening/closing function of the connection channels 33a, 33b and 33c for communication.SELECTED DRAWING: Figure 1 【課題】設備コストの低減、オペレーション、メンテナンスの容易化、死容積の減少による分離ガスのロス低減に貢献する圧力変動吸着装置及びガス分離方法を提供する。【解決手段】３以上の吸着塔2a、2b、2cそれぞれが有する原料ガス接続流路30ａ、30ｂ、30ｃ、非吸着ガス接続流路31ａ、31ｂ、31ｃ、放出ガス接続流路32ａ、32ｂ、32ｃ、連通用接続流路33ａ、33ｂ、33ｃに、原料ガス用バルブ6a、6b、6c、非吸着ガス用バルブ7a、7b、7c、放出ガス用バルブ8a、8b、8c、連通用バルブ10ａ、10ｂ、10ｃを介し、吸着質を含む原料ガスＧ１の供給源に接続される原料ガス流路３、非吸着ガスの出口を有する非吸着ガス流路４、脱着吸着質を含む放出ガスの出口を有する放出ガス流路５、吸着塔の何れかと別の何れかとを互いに連通させる連通流路９が接続される。連通用バルブ10ａ、10ｂ、10ｃは連通用接続流路33ａ、33ｂ、33ｃの開度調節機能と開閉機能を有する。【選択図】図１