Fuel cell systems containing chromium filters
AssigneeBloom Energy Corporation
InventorsAdil Ashary, Martin Perry, David Weingaertner, Richard Dole, Ivan Hartana, Emad El Batawi
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Abstract
A fuel cell system includes fuel cells disposed in a stack and separated by interconnects, a cathode recuperator configured to heat air provided to the stack using reaction exhaust provided from the stack, a steam generator configured to receive the reaction exhaust from the cathode recuperator and generate steam using the reaction exhaust, a hot box housing the stack, cathode recuperator, and steam generator, and a Cr filter including a porous metal and configured to remove Cr vapor species from the reaction exhaust.
Claims20
A fuel cell system comprising:
- fuel cells disposed in a stack and separated by interconnects;
- a cathode recuperator configured to heat air provided to the stack using reaction exhaust provided from the stack;
- a steam generator configured to receive the reaction exhaust from the cathode recuperator and generate steam using the reaction exhaust;
- a hot box housing the stack, cathode recuperator, and steam generator;
- and
- a Cr filter comprising a porous metal and configured to remove Cr vapor species from the reaction exhaust.
A method of operating a fuel cell system, comprising:
- operating a fuel cell stack to generate a reaction exhaust containing Cr vapor species;
- and
- providing the reaction exhaust through a Cr filter comprising a porous metal to remove at least 50% volume percent of the Cr vapor species from the reaction exhaust.
Dependencies are inferred from the claim text.