What are the methods of hydrogen production at present?

1. Hydrogen production from fossil fuels is a traditional hydrogen production method and an ancient hydrogen production process.

2. Hydrogen production by methanol reforming. Hydrogen production by steam reforming of methanol is a hydrogen production technology developed abroad in 1980s. It has the advantages of less investment, fast construction, zero emission and no pollution, and high utilization rate of raw materials.

3. Hydrogen production by industrial by-product, coke oven gas is a process of pressure swing adsorption hydrogen production, and pure hydrogen is extracted from coke oven gas, a by-product of coking industry.

4. Hydrogen production by water electrolysis. Traditional electrolysis of water can also obtain hydrogen. The technology of hydrogen production by electrolysis of water at home and abroad is mature, with high efficiency and simple hydrogen production process. However, due to the high cost of this method, there are few new equipment except those already built.