Abstract:

The development of hydrogen refueling stations (HRS) technology is an important support in the application of low-carbon clean hydrogen in the field of transportation. This article reviews the technology of HRS, introduces the roadmap and technical targets in the United States, Japan, Europe, and other countries, analyzes the development status of domestic HRS technology, and refines three key cost-reduction technology development ideas and objectives: reducing equipment cost, improving operational reliability, and reducing operation energy consumption. Many countries have carried out research and development layouts through the localization of core equipment, key materials, and components, such as high reliability and high-efficiency hydrogen compressors and liquid hydrogen pumps, high-efficiency hydrogenation machines, high-pressure valves, and long-life diaphragms, to reduce the overall cost of hydrogenation stations, which are an important reference value for developing hydrogenation technology routes in China. Based on the development status of domestic hydrogenation infrastructure technology, this study analyzed and quantified the gap between China's key technology and equipment performance indicators and foreign countries. This paper proposes a technical route for the whole station and critical technical equipment of China's hydrogenation infrastructure and suggests concerted efforts from the aspects of technological breakthrough, policy encouragement, and industrial collaborative innovation. The overall aim was to reduce the cost of hydrogenation infrastructure to fully exploit the role of hydrogen energy in the deep decarbonization of transportation.

Key words: hydrogen, hydrogen refueling stations (HRS), hydrogen dispenser, compressor, liquid hydrogen