Fuel, cell, and generation system and method using the same
AssigneeDoosan Heavy Industries Construction Co., Ltd
InventorsChoa Mun YUN, Sung Hoon KIM, Won Joon CHOI, In Gab CHANG
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Abstract
A fuel cell using biogas as a fuel is provided, in which the fuel cell is supplied with a first gas required at a fuel electrode and a second gas required at an air electrode, which are separated from the biogas by a selective permeation method using a separation membrane of a gas-purification separation unit, and supplies gas discharged from the fuel cell along with the biogas to the gas-purification separation unit.
Claims20
A fuel cell using biogas as a fuel,
- wherein the fuel cell is supplied with a first gas required at a fuel electrode and a second gas required at an air electrode, which are separated from the biogas by a gas-purification separation unit, and supplies gas discharged from the fuel cell along with the biogas to the gas-purification separation unit.
A fuel cell using biogas as a fuel,
- wherein a hydrogenation reaction with the biogas is used to supply gas discharged from the fuel cell to a polisher which increases a purity of methane in the biogas.
A fuel cell using biogas as a fuel, wherein when the biogas is an anaerobic digestion gas, the fuel cell provides gas at a high temperature, which is discharged from the fuel cell when sludge is dried and/or digested.
A generation system which uses a fuel cell, comprising:
- a fuel cell using biogas as a fuel;
- and
- a gas-purification separation unit which separates a first gas required at a fuel electrode of the fuel cell and a second gas required at an air electrode of the fuel cell from the biogas,
- wherein the fuel cell supplies gas exhausted along with the biogas to the gas-purification separation unit.
A generation method using a fuel cell, the method including:
- separating a first gas required at a fuel electrode of a fuel cell and a second gas required at an air electrode of the fuel cell from biogas by a gas-purification separation unit;
- supplying the first gas and the second gas to the fuel cell;
- using the first gas and the second gas to generate power by the fuel cell;
- and
- supplying gas discharged to the gas-purification separation unit by the fuel cell.
A generation method using a fuel cell, the method including:
- separating a first gas required at a fuel electrode of a fuel cell and a second gas required at an air electrode of the fuel cell from biogas by a gas-purification separation unit;
- supplying the first gas and the second gas to the fuel cell;
- using the first gas and the second gas to generate power by the fuel cell;
- supplying gas discharged from the air electrode of the fuel cell to a polisher;
- using gas discharged from the air electrode to perform hydrogenation reaction with the biogas by the polisher;
- and
- removing sulfur compounds and/or chlorine compounds from a gas in which the hydrogenation reaction is performed by the polisher.
Dependencies are inferred from the claim text.