Method of purifying helium from mixed gas
AssigneeSkyre, Inc.
InventorsTrent M. Molter, Robert Roy
Life of this patent
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Abstract
In an aspect, a hydrogen separation unit includes an electrochemical cell stack that includes a separator stack located in between an anode side and a cathode side; a mixed gas conduit for receiving a mixed gas stream to the anode side; an anode removal conduit for removing a helium rich stream from the anode side; and a cathode removal conduit for removing a hydrogen rich stream from the cathode side. The separation stack includes a plurality of electrochemical cells, each of which includes a proton exchange membrane located in between an anode and a cathode. The proton exchange membrane can include a cation. The separation stack can be a cascading separation stack.
Claims11
A hydrogen separation unit comprising:
- an electrochemical cell stack comprising a separator stack located in between an anode side and a cathode side;
- a mixed gas conduit for receiving a mixed gas stream to the anode side;
- an anode removal conduit for removing a helium rich stream from the anode side;
- and
- a cathode removal conduit for removing a hydrogen rich stream from the cathode side;
- wherein the separator stack comprises a plurality of electrochemical cells, each of which comprises a proton exchange membrane located in between an anode and a cathode;
- and
- wherein at least one of
- the proton exchange membrane comprises a cation other than H+, or
- the separator stack is a cascading separation stack partitioned to maintain consistent gas velocity.
Dependencies are inferred from the claim text.