Separation of a gas stream by a psa process

Details Separation of a gas stream by a psa process Separation of a gas stream by a psa process

B - Operations, Transporting

01

D

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

Patent

CA 2243052

This invention involves a process for separating a feed gas stream containing at least one initial constituent and one second constituent, by: preferential adsorption of the said initial constituent, at a high pressure of adsorption, on at least one bed of particles of an adsorbent material, and recovery of a gas stream enriched in the said second constituent; and by desorption of the said initial component at a low pressure of desorption. The process is characterized by a ratio (µ/.sigma.) of between 1.5 and 15 between the average particle size (µ) of the adsorbent particles in the said bed and the particle size distribution range (.sigma.) of the said particles.

L'invention concerne un procédé de séparation d'un flux gazeux d'alimentation contenant au moins un premier composant et un second composant, par: - adsorption préférentielle dudit premier composant, à une pression haute d'adsorption, sur au moins un lit de particules d'un matériau adsorbant et récupération d'un flux gazeux enrichi en ledit second composant, - et désorption dudit premier composant à une pression basse de désorption, caractérisé en ce que le rapport (µ/.sigma.) de la granulométrie moyenne (µ) des particules d'adsorbant contenues dans ledit lit sur la largeur de distribution granulométrique (.sigma.) desdites particules est compris dans la plage 1.5 à 15.

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