Self-supply hydrogen fuel cell system and operating method thereof

Abstract

The invention discloses a self-supply hydrogen fuel cell system. The self-supply hydrogen fuel cell system comprises a diesel fuel tank (1), a gas separator (2), a fuel cell (3), a low-temperature separation reactor (4), a high-temperature separation reactor (5), a self-heating reforming device (6), a water tank (7) and a catalytic combustor (8). The high-temperature separation reactor (5), low-temperature separation reactor (6) and self-heating reforming device (7) are adopted to cracking diesel to H2 and CO, H2 is used as fuel of the fuel cell to react with O2 in the air to generate electric energy, the unreacted H2 and CO enter the catalytic combustor (8) to be combusted, so that the heating of water can be guaranteed; therefore, not only is hydrogen provided for the fuel cell, but also high-temperature water is provided for a self-heating converter for generating the hydrogen, the electric energy is generated without combusting the diesel in the entire process, the generation of NOx and particulate matters can be avoided, only CO2 is generated, and the ultra-low emission is realized. The invention also discloses an operating method of the self-supply hydrogen fuel cell system.

Description

technical field [0001] The invention relates to the technical field of fuel cells, and specifically provides a self-supply hydrogen fuel cell system and a working method thereof. Background technique [0002] Fuel cells, as a new energy source for vehicles, are becoming more and more research hotspots, and hydrogen supply technology has also become the focus of research. Proton exchange membrane fuel cells have the advantages of high efficiency, fast start-up, high energy density, low noise and no pollution, and are considered to be the most likely to replace internal combustion engines as the next generation of vehicle power devices. As the fuel of proton exchange membrane batteries, hydrogen does not exist in nature and can only be converted through other energy sources. However, due to the very active chemical properties of hydrogen, hydrogen storage has become a major problem. If the diesel autothermal conversion designed in this patent is adopted, the zero emission of ...

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Problems solved by technology

The patent (CN101142016B, US8349288) provides equipment and methods for the homogeneous conversion of oil and oxygen and the approach and method for the autothermal conversion of methane, but it does not form an overall scheme with the fuel cell, and the design for the self-supply hydrogen of the fuel cell is not yet Sufficient, practical applicability needs further research, this patent will conduct systematic research on the generation of hydrogen from diesel pyrolysis, and propose a more feasible new diesel self-supply hydrogen overall solution

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