Pressure swing adsorption apparatus and method

B - Operations – Transporting – 01 – D

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Details

B01D 53/047 (2006.01) A61M 16/06 (2006.01) A62B 18/00 (2006.01) B01D 53/053 (2006.01)

Patent

CA 2293503

A pressure swing adsorption apparatus (30) to vary selectively the concentration of at least one constituent of a gaseous mixture by sending a gaseous mixture into an adsorber (62) to generate a particular product gas while delivering to another adsorber (60) both a predetermined portion of the product gas to purge the other adsorber and a selected amount of the product gas, independent of the flow rate and in addition to the predetermined portion, to produce a desired relative concentration of the constituents of the product gas selectable from a range of available relative concentrations.

L'invention concerne un appareil (30) d'adsorption modulée en pression permettant de modifier sélectivement la concentration d'au moins un constituant de mélange gazeux. Le procédé consiste à envoyer un mélange gazeux dans un adsorbeur (62) de manière à produire un produit gazeux particulier tout en acheminant vers un second adsorbeur (62) non seulement une partie prédéterminée du produit gazeux destinée à la purge de cet autre adsorbeur, mais aussi une quantité définie de produit gazeux, indépendante du débit d'écoulement et venant s'ajouter à la partie prédéterminée, laquelle seconde partie est destinée à la production d'une concentration relative voulue de constituants du produit gazeux. Cette concentration peut être choisie dans une gamme de concentrations relatives disponibles.

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