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US 12,043,874 B2Granted
System and method for reducing ore using hydrogen as a reducing agent
AssigneeOhmium International, Inc.
InventorsChockkalingam Karuppaiah, Arne Ballantine, Muralidhar Venkatraman
Life of this patent
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Abstract
A system for reducing ore includes a hydrogen supply unit configured to supply hydrogen, a furnace configured to reduce the ore using the supplied hydrogen, and a hydrogen recovery unit configured to recover hydrogen from an exhaust gas that is exhausted from the furnace.
Claims12
A system for reducing ore, comprising:
- a proton exchange membrane (PEM) electrolyzer configured to supply hydrogen;
- a furnace configured to reduce the ore using the supplied hydrogen, the furnace fluidly connected to the PEM electrolyzer;
- and
- a hydrogen recovery unit including a PEM hydrogen pump configured to recover hydrogen from an exhaust gas that is exhausted from the furnace, the hydrogen recovery unit fluidly connected to the furnace,
- wherein the hydrogen recovery unit comprises series-parallel coolant flow channels fluidly connecting multiple inlets and outlets.
2 more elements
A system, comprising:
- an electrolyzer;
- a blast furnace;
- a first conduit fluidly connecting a hydrogen outlet of the electrolyzer to the blast furnace;
- and
- a hydrogen recovery unit fluidly connected to the blast furnace configured to recover hydrogen from the blast furnace and recycle the recovered hydrogen to the blast furnace,
- wherein the hydrogen recovery unit comprises series-parallel coolant flow channels fluidly connecting multiple inlets and outlets.
3 more elements
Dependencies are inferred from the claim text.