Variable volume hydrogen storage

F - Mech Eng,Light,Heat,Weapons – 17 – C

Patent

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Details

F17C 5/04 (2006.01) F17C 5/02 (2006.01)

Patent

CA 2747966

In the present invention methods for storing gaseous hydrogen employing an ionic liquid are disclosed. The ionic liquid is used to displace the volume in the storage tanks. By displacing the volume in the storage tanks with the ionic liquid, the storage pressure can remain constant and the "stranded" gas can be eliminated. This constant pressure will also allow for a reduction in the number of storage tanks needed to provide the required inventory at hydrogen fueling stations. In addition, this constant pressure will provide a complete and fast fill to the vehicle.

La présente invention concerne des procédés de stockage d'hydrogène gazeux employant un liquide ionique. Le liquide ionique sert à déplacer le volume dans les réservoirs de stockage. Le déplacement du volume dans les réservoirs de stockage par le liquide ionique permet de maintenir constante la pression de stockage et d'éliminer le gaz « laissé de côté ». Cette pression constante permettra également de réduire le nombre de réservoirs de stockage nécessaires pour fournir l'inventaire requis au niveau des postes de remplissage en hydrogène. En outre, cette pression constante facilitera le remplissage rapide et complet du réservoir du véhicule.

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