High temperature electrolyser with hydrogen recovery device

C - Chemistry – Metallurgy – 25 – B

Patent

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Details

C25B 1/04 (2006.01) C25B 9/20 (2006.01) C25B 15/08 (2006.01) H01M 8/04 (2006.01) H01M 8/24 (2006.01)

Patent

CA 2699996

The invention relates to an electrolyser for generating hydrogen, that comprises a plurality of elementary electrolysis cells including a cathode (2.1, 2.2), an anode (4.1, 4.2) and an electrolyte (6.1, 6.2) provided between the cathode and the anode, an interconnection plate (8) provided between the anode (4.1) of an elementary cell and a cathode (2.2) of a following elementary cell in electric contact with the anode and the cathode, and including a cathodic compartment, an anodic compartment for the fluid flow to cathode and the anode, respectively, and a chamber (12) for collecting the gas generated at the cathode (2.2), separated from the cathodic compartment (11) and the anodic compartment (9) by first (8.1) and second (8.2) walls, respectively, said first wall at least having a thickness allowing the diffusion of the gas through said first wall (8.1) from the cathodic compartment to the chamber.

Electrolyseur pour générer de l'hydrogène comportant une pluralité de cellules d'électrolyse élémentaires formées d'une cathode (2.1, 2.2), d'une anode (4.1, 4.2) et d'un électrolyte (6.1, 6.2) disposé entre la cathode et l'anode, une plaque inter-connectrice (8) interposée entre l'anode (4.1) d'une cellule élémentaire et une cathode (2.2) d'une cellule élémentaire suivante, en contact électrique avec l'anode et la cathode, et comportant un compartiment cathodique, un compartiment anodique pour la circulation de fluide à la cathode et à l'anode respectivement et une chambre de collecte (12) d'un gaz généré à la cathode (2.2) séparée du compartiment cathodique (l1) et du compartiment anodique (9) par des première (8.1) et deuxième (8.2) parois respectivement, au moins ladite première paroi ayant une épaisseur permettant la diffusion du gaz à travers ladite première paroi (8.1) du compartiment cathodique vers la chambre.

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