Hydrogen energy is a kind of new se

Hydrogen energy is a kind of new secondary energy, which is expected by people when developing secondary energy. Because of its high energy, combustion products are water and widely used, it is a new ideal energy containing body. At present, liquid hydrogen has been widely used as the fuel of aerospace power, but because it is a secondary energy, the process of hydrogen production not only consumes huge energy, but also has low efficiency. Today, almost all hydrogen is produced by highly polluting fossil fuels. Although carbon capture and storage (CCS) technology can reduce emissions, if we combine this technology in the process of hydrogen production, compared with hydrogen production by coal or natural gas alone, it will lead to twice the cost.