Hydrogen energy is an ideal medium for promoting the clean and efficient utilization of traditional fossil fuels and supporting the large-scale development of renewable energy. It is also an important lever for achieving the goals of “carbon peaking and carbon neutrality”. At present, among all the hydrogen energy application scenarios such as the chemical industry, transportation, and electricity, the chemical utilization relying on ammonia synthesis, methanol synthesis, and the petrochemical industry is dominant. Therefore, making good use of and promoting the application of hydrogen energy in the chemical industry, namely the hydrogen chemical industry, are the keys to promoting the development of the hydrogen energy industry. Therefore, this article summarized the current status and the key issues in the development of the hydrogen chemical industry. In addition, suggestions were proposed in terms of accelerating the substitution of grey hydrogen by green hydrogen, strengthening the construction of infrastructure such as the hydrogen pipeline network, promoting core technology research and development, developing a hydrogen energy standard system, and exploring rapid iteration mechanism of standards.

In 2002, China carried out the construction and operation of the Shanghai Maglev Train Demonstration Operation Line and gained much experience in operation and maintenance. From “the 10th Five-Year Plan” to “the 13th Five-Year Plan” period, China continued to carry out independent innovation through four “Five-Year Plan” national high-speed maglev technology special projects, completed the development of a high-speed maglev engineering prototype of 600 km/h, and conducted the ground functional test of the subsystem, high-speed simulation evaluation of test platform, and low-speed function verification of line conditions. This paper systematically introduces the research progress of high-speed maglev transportation in China from “the 10th Five-Year Plan” to “the 13th Five-Year Plan” period, elaborates on the engineering practices of key technology innovation and system verification of high-speed maglev transportation of 600 km/h, and analyzes the development needs and technical challenges of high-speed maglev transportation in China. Based on the experience of maglev transportation in China and abroad and the development of China’s high-speed railways, it is suggested to clarify the subject playing a leading role, form a consortium to jointly promote the development of maglev transportation, carry out high-speed test and verification in an orderly manner, and speed up the progress of test line planning and construction. It is also necessary to strengthen basic theoretical research and continuously build a high-speed maglev basic research and continuous engineering innovation capability system.