Odorant for Fuel Gases for Anion Membrane Fuel Cells, Fuel Gas and Power Generation System Using Anion Membrane Fuel Cell

Abstract

An odorant for fuel gases for anion membrane fuel cells, which imparts a fuel gas with an odor, includes at least one or more substances selected from the group consisting of ammonia, trimethylamine, triethylamine, N,N-diethylmethylamine, N,N-dipropylmethylamine, N,N-dipropylethylamine, N,N-diisopropylmethylamine, N,N-diisopropylethylamine, dimethylamine, diethylamine, dipropylamine, ethylmethylamine, propylmethylamine, propylethylamine, methylamine, ethylamine and propylamine.

Claims

1. A fuel gas odorant for an anion membrane fuel cell, wherein said fuel gas odorant adds an odor to a fuel gas, and said odorant comprises at least one substance selected from the group consisting of ammonia, trimethyl amine, triethyl amine, N,N-diethylmethyl amine, N,N-dipropylmethyl amine, N,N-dipropylethyl amine, N,N-diisopropylmethyl amine, N,N-diisopropylethyl amine, dimethyl amine, diethtyl amine, dipropyl amine, ethylmethyl amine, propylmethyl amine, propylethyl amine, methyl amine, ethyl amine and propyl amine.

2. A fuel gas for an anion membrane fuel cell comprising: a fuel gas; and the fuel gas odorant as set forth in claim 1.

3. The fuel gas for the anion membrane fuel cell as set forth in claim 2, wherein a concentration of the fuel gas odorant is 2 to 2000 ppm in the fuel gas.

4. The fuel gas for the anion membrane fuel cell as set forth in claim 2, wherein the fuel gas is hydrogen.

5. A power generation system using an anion membrane fuel cell, wherein said power generation system uses an anion membrane fuel cell comprises an electrolyte membrane made of an anionic exchange membrane, and a pair of anode and cathode electrodes placed on both side of said electrolyte membrane, a fuel gas is supplied to an anode chamber, and on the other hand an oxide gas is supplied to a cathode chamber, and the fuel gas as set forth in claim 2 is used as the fuel gas supplied to the anode chamber.

6. The power generation system using the anion membrane fuel cell as set forth in claim 5, wherein the fuel gas is supplied to the anode chamber without a pre-treatment for removing a fuel gas odorant.

7. The power generation system using the anion membrane fuel cell as set forth in claim 5 comprising a detection means for fuel gas leakage by pH measurement.

8. The power generation system as set forth in claim 5, wherein a precious metal supporting carbon catalyst is included in an electrode layer of anode, and an amount of precious metal in the precious metal supporting carbon catalyst is 50 wt % or less with respect to entire weight of the electrode layer.

9. A use of at least one substance selected from the group consisting of ammonia, trimethyl amine, triethyl amine, N,N-diethylmethyl amine, N,N-dipropylmethyl amine, N,N-dipropylethyl amine, N,N-diisopropylmethtyl amine, N,N-diisopropylethyl amine, dimethyl amine, diethtyl amine, dipropyl amine, ethylmethyl amine, propylmethyl amine, propylethyl amine, methyl amine, ethyl amine and propyl amine as the fuel gas odorant for an anion membrane fuel cell.

10. A method of using a power generation system, comprising: supplying a fuel gas as set forth in claim 2 to an anode chamber of an anion membrane fuel cell; and supplying an oxide gas to a cathode camber of said anion membrane fuel cell; wherein an anode and a cathode electrode are on opposite sides of an anion exchange membrane.

11. The method as set forth in claim 10, wherein the fuel gas is supplied to the anode chamber without a pre-treatment for removing a fuel gas odorant.

12. The method as set for in claim 10, further comprising a detection means for fuel gas leakage by pH measurement.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0061] [FIG. 1] FIG. 1 is the conceptual figure showing the basic structure of the solid polymer type fuel cell.

NUMERICAL REFERENCES

[0062] 1; Battery partition wall [0063] 2; Fuel flow channel [0064] 3; Oxidant gas flow channel [0065] 4; Anode [0066] 5; Cathode [0067] 6; Solid polymer electrolyte (anion exchange membrane) [0068] 7; Anode chamber [0069] 8; Cathode chamber