High frequency rotary pressure swing adsorption apparatus

B - Operations – Transporting – 01 – D

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B01D 53/047 (2006.01) B01D 53/04 (2006.01)

Patent

CA 2294718

Pressure swing adsorption separation of a feed gas mixture, to obtain a purified product gas of the less strongly adsorbed fraction of the feed gas mixture, is performed with a cooperating set of "N" adsorbers in a rotary assembly, with each adsorber communicating at its product end directly to a rotary cyclic displacement chamber, and at its feed end by rotary distributor valve ports to a rotary piston feed compressor and a rotary piston exhaust vacuum pump. The compressor and vacuum pump are integrated with the cycle, and rotate at "N" times the cycle frequency. Alternative adsorber configurations for high frequency operation are disclosed.

L'invention concerne un procédé de séparation par adsorption modulée en pression d'un mélange de gaz d'alimentation pour obtenir un gaz purifié de la fraction la moins fortement adsorbée du mélange de gaz d'alimentation. Ce procédé est mis en oeuvre avec un ensemble coopérant de "N" adsorbeurs dans un ensemble rotatif. Chaque adsorbeur communique, au niveau de son extrémité de production directement avec une chambre à déplacement cyclique rotative, et au niveau de son extrémité d'alimentation par des lumières d'un distributeur rotatif avec un compresseur d'alimentation à piston rotatif et une pompe à vide à piston rotatif assurant un échappement. Le compresseur et la pompe à vide sont intégrés dans le cycle et tournent à "N" fois la fréquence du cycle.L'invention traite également d'autres configurations d'adsorbeurs pour un fonctionnement à hautes fréquences.

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