Industrial hydrogen production method:
1. Water and gas method (main components CO and H?, C+H?O==high temperature==CO+H?)
< p>2. Produce hydrogen by electrolysis of water (2H?O==Electricity==O?↑+2H?↑)3. Electrolysis of saturated salt water (2NaCl+2H?O== Electricity= =2NaOH+H?↑+Cl?↑)
Detailed information:
Hydrogen Colorless, odorless, non-toxic, flammable and explosive gases which may explode when mixed with fluorine, chlorine, oxygen, carbon monoxide and air. Among them, the mixture of hydrogen and fluorine can explode at low temperatures and in the dark. Environments Spontaneous explosion, when the volume ratio of mixture with chlorine is 1:1, it can also explode under light.
Hydrogen is colorless and odorless, and the flame is transparent when burning, so its presence is not easily detectedted by the senses. In many cases, smelly ethyl mercaptan is added to the hydrogen to make it detectable by the senses. smell and can also give color to the flame.
Although hydrogen is non-toxic and physiologically inert to the human body, if the hydrogen content in the air increases, it will cause hypoxic asphyxia. As with all cryogenic liquids, direct contact with liquid hydrogen will cause frostbite. Overflow and sudden evaporation of liquid hydrogen over a large area will also cause a lack of oxygen in the environment and may form an explosive mixture with air, causing a combustion and explosion accident.
It can form an explosive mixture when mixed with air and explodes when exposed to heat or an open flame. Gas is lighter than air. When used and stored indoors, escaping air rises and stays onthe roof and will not be easily evacuated if it encounters sparks, it will cause an explosion. Hydrogen reacts violently with halogens such as fluorine, chlorine and bromine.
As hydrogen is a flammable compressed gas, it must be stored in a cool, ventilated warehouse. The temperature inside the warehouse should not exceed 30℃. Keep away from fire and heat sources. Protect from direct sunlight. It must be stored separately from oxygen, compressed air, halogens (fluorine, chlorine, bromine), oxidants, etc. Avoid mixed storage and transportation.
Lighting, ventilation and other facilities in the storage room must be explosion-proof, with switches located outside the warehouse and equipped with corresponding types and quantities of fire-fighting equipment against fire. It is prohibited to use mechanical equipment and tools subject to sparks. Upon acceptancetation, pay attention to the product name and the inspection date of the bottles, and those that go to the warehouse first will be used. When transporting, load and unload carefully to avoid damage to the cylinder and accessories.
Baidu-Hydrogen Encyclopedia