Fuel cell system having biogas desulfurizer assembly with manganese oxide desulfurizer material
First Claim
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1. A fuel cell system comprising:
- a biogas fuel supply assembly;
a desulfurizer assembly configured to receive biogas fuel from the biogas fuel supply assembly and to desulfurize the biogas fuel, the desulfurizer assembly comprising one or more desulfurizer beds; and
a fuel cell stack including an anode side and a cathode side, the anode side of the fuel cell stack receiving the desulfurized biogas fuel from the desulfurizer assembly;
wherein each of the one or more desulfurizer beds comprises a desulfurizer material configured to desulfurize biogas fuel conveyed through said one or more desulfurizer beds, andwherein the desulfurizer material in at least one of the one or more desulfurizer beds comprises a manganese oxide material that has an octahedral molecular sieve (OMS) structure and is doped with Fe,wherein the manganese oxide material comprises OMS-2 having a 2×
2 tunnel structure, andwherein an amount of the Fe in the desulfurizer material is greater than 0% (mole) and less than 50% (mole) of a total metal content of the desulfurizer material.
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Abstract
A desulfurizer material for desulfurizing fuel supplied to a fuel cell system, the desulfurizer material comprising one or more manganese oxide materials having an octahedral molecular sieve (OMS) structure, and the desulfurizer material being resistant to moisture and being capable of removing organic sulfur containing compounds and H2S. The desulfurizer material is used in a desulfurizer assembly which is used as part of a fuel cell system.
24 Citations
16 Claims
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1. A fuel cell system comprising:
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a biogas fuel supply assembly; a desulfurizer assembly configured to receive biogas fuel from the biogas fuel supply assembly and to desulfurize the biogas fuel, the desulfurizer assembly comprising one or more desulfurizer beds; and a fuel cell stack including an anode side and a cathode side, the anode side of the fuel cell stack receiving the desulfurized biogas fuel from the desulfurizer assembly; wherein each of the one or more desulfurizer beds comprises a desulfurizer material configured to desulfurize biogas fuel conveyed through said one or more desulfurizer beds, and wherein the desulfurizer material in at least one of the one or more desulfurizer beds comprises a manganese oxide material that has an octahedral molecular sieve (OMS) structure and is doped with Fe, wherein the manganese oxide material comprises OMS-2 having a 2×
2 tunnel structure, andwherein an amount of the Fe in the desulfurizer material is greater than 0% (mole) and less than 50% (mole) of a total metal content of the desulfurizer material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification