Process for purifying hydrogen gas for use in fuel cells
AssigneeNuMat Technologies, Inc.
InventorsWilliam Morris, William Joseph Hoover, Ross James Verploegh, Edwin Alfonso Argueta Fajardo, Alexander Matthew Ruddick
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Abstract
The invention generally relates to a process for purifying a hydrogen gas for use in a fuel cell. The process involves taking a hydrogen feed stream from a high-pressure tank and passing it through a purifier comprising an adsorbent to provide a purified hydrogen stream which is sent to a fuel cell. A particular adsorbent which can be used is a metal-organic framework composition. The adsorbent can be housed in a device such as a canister or cartridge having an inlet and outlet port.
Claims24
A process for providing purified hydrogen to a hydrogen fuel cell, the process comprising:
- providing a system comprising a high-pressure tank containing hydrogen gas having at least one contaminant, a purifier containing an adsorbent, and a fuel cell;
- flowing a hydrogen stream from said high-pressure tank through said purifier at purification conditions thereby substantially removing said at least one contaminant to provide a purified hydrogen stream, and
- flowing said purified hydrogen stream to said fuel cell.
A process for purifying hydrogen, the process comprising
- flowing a hydrogen stream comprising hydrogen and at least one contaminant from a high-pressure tank through a purifier comprising a metal organic framework adsorbent at purification conditions, thereby substantially removing said at least one contaminant,
- wherein the MOF is selected from MOF-74-Co, MOF-74-Ni, MOF-74-Cu, PCN-250, HKUST-1, UiO-66, UiO-66-NH2, SIFSIX-3, MIL-88, MIL-89, Ga-soc-MOF, Zn2(BDC)2(DABCO), and mixtures thereof.
Dependencies are inferred from the claim text.