关键词: 氢, 制氢, 电解水, 运输, 加氢站, 成本分析

Abstract:

Hydrogen energy has the advantages of high energy density, environmental protection, cleanness, and renewable energy. It has become an important direction for future energy development and is regarded as the only way to achieve carbon emission reduction. However, the core problem of the development of hydrogen energy is that the cost of using hydrogen is too high, which has no economic advantage compared with electric vehicles and traditional fuel vehicles. From the perspective of the hydrogen production-transport-hydrogenation industrial chain, it is found that the cost of hydrogen production from electrolysis of water is much higher than that of fossil energy production. At the same time, the cost of hydrogen is mainly raised in the hydrogen transportation and hydrogenation links. This is mainly due to hydrogen storage is not easy. Under the existing long tube trailer transportation conditions, the amount of hydrogen transported each time is too small and the efficiency is not high. At the same time, because the number of fuel cell vehicles is too small, the daily filling volume is insufficient, and the key equipment of the superimposed hydrogen refueling station localization, fixed capital investment is too high, resulting in too high depreciation costs, increasing the cost of hydrogen. In response to this problem, specific suggestions for reducing costs were given, including increasing the pressure of hydrogen transportation to increase the amount of hydrogen carried per time; speeding up scientific and technological research and nationalizing key equipment; breaking through policy restrictions to achieve hydrogen production in the station; optimizing the hydrogen refueling station process, reduce daily operating costs, etc.

Key words: hydrogen, hydrogen production, electrolysis of water, transportation, hydrogen refueling station, cost analysis