Seitetsu Kagaku Co., Ltd.

Iwamitsu Shiozawa

Kazuo Haruna

An adsorption apparatus with a good heat recovery and a good noise abatement for separating a gas mixture into its components by pressure swing adsorption comprises a closed vessel having an inlet nozzle for a gas mixture at one end, an adsorbent packed as a bed in the closed vessel and a passage for an unadsorbed gas being vertically provided in the vessel through the adsorbent bed, whose one end is open above the top of the adsorbent bed and whose another end passes through the closed vessel at the inlet nozzle side to the outside.

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Hyogo, Japan

Iwamitsu Shiozawa