As a very important industrial raw material and a clean energy source, hydrogen is widely used in petrochemical, electronics, metallurgical and other industries. With the economic development, modern society has higher and higher requirements for hydrogen production and purity. 80% of the hydrogen is produced by a steam reforming process.

Hydrogen is not only a "clean" energy source, but also a very important industrial raw material. It is widely used in petroleum, chemical, electronics, metallurgy, oil, aerospace, light industry and other fields [3].

In the chemical industry, hydrogen is one of the main raw materials for the synthesis of ammonia, methanol, etc. In the refining industry, hydrogen is widely used in the desulfurization of naphtha, gas oil, fuel oil, heavy oil, petroleum refining, catalytic cracking and Hydrorefining of saturated hydrocarbons to improve the quality of oils; hydrogen production of nylon plastics, pesticides, oleochemicals and fine chemicals.

In the electronics industry, hydrogen is primarily used as a shielding gas.

      In the production of electronic materials, semiconductor materials and devices, integrated circuits and electric vacuum devices, high purity hydrogen is required as a reducing gas, a carrier gas and a shielding gas.

In the metallurgical industry, non-ferrous metals such as:

      In the production and processing of tungsten, molybdenum, titanium, etc., hydrogen is used as a reducing agent and a shielding gas. In the production of silicon steel sheets, magnetic materials and magnetic alloys, high purity hydrogen is also required as a shielding gas to improve magnetic properties and stability. Annealing in precision alloys. In powder metallurgy production, hydrogen-nitrogen is commonly used as a protective gas in sheet metal and strip rolling.

　　In the oil industry, liquid oils are hydrogenated to solid or semi-solid fats to produce hardened oils for the margarine or soap industry.

    Many natural edible oils have a large degree of unsaturation. After hydrogenation, the products can be stably stored, and can resist the growth of bacteria and improve the viscosity of oil. Products for hydrogenation of edible oils can be processed into margarines and edible proteins. Hydrogenation of non-edible oils yields raw materials for the production of soap and livestock feed. Hydrogen is also used to harden animal and vegetable oils, such as margarine, embrittlement cream, grease, and the like.

In the aerospace industry, hydrogen is an important fuel.

    Due to the good combustion performance of hydrogen and the increasingly stringent requirements of environmental regulations, there is a potential huge demand for hydrogen in the future market.

In light industry, such as: quartz glass, the manufacture and processing of artificial gemstones, and the production of float glass, hydrogen is used as combustion gas or shielding gas.

Others, hydrogen acts as a coolant for the turbine generator.