Single-bed radial adsorbers in series

Details Single-bed radial adsorbers in series Single-bed radial adsorbers in series

B - Operations, Transporting

01

D

B01D 53/04 (2006.01) B01D 53/26 (2006.01)

Patent

CA 2743951

The invention relates to a method for purifying a feedstock gas flow including a main compound, water (H2O) and carbon dioxide (CO2) as well as so-called secondary impurities, that comprises: a) feeding the feedstock gas flow into at least one 2-grid radial adsorber comprising as a single adsorption bed an activated alumina or silica gel bed on which H2O is preferably adsorbed; b) feeding the gas resulting from step a) into at least one 2-grid radial adsorber comprising as a single adsorption a molecular sieve bed on which CO2 and secondary impurities are preferably adsorbed; and c) recovering a gas resulting from step b) enriched with the main compound and suitable for cryogenic distillation.

Procédé de purification d'un flux de gaz d'alimentation comprenant un composé principal, de l'eau (H2O) et du dioxyde de carbone (CO2), ainsi que des impuretés dites secondaires, dans lequel : a) on introduit le flux de gaz d'alimentation dans au moins un adsorbeur radial 2 grilles contenant comme unique lit d'adsorption un lit d'alumine activée ou de gel de silice, sur lequel s'adsorbe préférentiellement l'H2O, b) on introduit le gaz issu de l'étape a) dans au moins un adsorbeur radial 2 grilles contenant comme unique lit d'adsorption un lit de tamis moléculaire, sur lequel s'adsorbe préférentiellement le CO2 et les impuretés secondaires, et c) on récupère un gaz issu de l'étape b) enrichi en composé principal et apte à subir une distillation cryogénique.

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