Method for purifying hydrogen-based gas mixtures using a...

Details Method for purifying hydrogen-based gas mixtures using a... Method for purifying hydrogen-based gas mixtures using a...

B - Operations, Transporting

01

D

B01D 53/047 (2006.01) C01B 3/56 (2006.01)

Patent

CA 2415412

The invention concerns a method for purifying PSA-type gaseous hydrogen polluted with CO and N¿2? which consists in passing the gas stream through an adsorption zone comprising at least an adsorbent based on 5A-zeolite and an adsorbent based on a calcium-exchanged X-zeolite. Said method is particularly efficient in terms of productivity and yield in purified hydrogen at moderate production price.

La présente invention concerne un procédé de purification d'hydrogène gazeux pollué au moins par CO et N2 de type PSA H2 où l'on fait passer le flux gazeux à purifier au travers d'une zone d'adsorption comprenant au moins un adsorbant à base de zéolite 5A et un adsorbant à base de zéolite X échangée au calcium. Ce procédé est particulièrement efficace en termes de productivité et de rendement en hydrogène purifié pour un prix de revient modéré.

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