ammonia has a great role in the industry, system of ammonia method has a lot of, so ammonia itself and what can be used to do, such as ammonia decomposition can produce nitrogen hydrogen, so how to make ammonia decomposition?
Ammonia decomposition gas generator takes liquid ammonia as raw material and heats ammonia to a certain temperature after vaporization. Under the action of catalyst, ammonia decomposes into hydrogen and nitrogen mixed gas.
The chemical equation of ammonia decomposition is as follows: 2NH3=3H2+N2 that is, under standard conditions, the complete decomposition of 1 kilomole of ammonia can produce hydrogen and nitrogen mixture 44.8Nm, and absorb heat 11040 kcal.
In other words, the complete decomposition of 1kg liquid ammonia can produce 2.64m3 hydrogen and nitrogen mixed gas. According to the chemical equation, the decomposition gas is composed of 75%H2 and 25%N2.
Ammonia decomposition hydrogen production device is a combination device carefully designed and manufactured according to the basic principle of ammonia decomposition reaction.
Ammonia decomposition under the condition of industrial devices can’t be 100% complete decomposition, there are traces of residual ammonia, industrial liquid ammonia containing a small amount of water, used gas purification device, removing the residual ammonia and moisture in mixture, satisfactory protective gas, meet the needs of industrial production (such as the impurity oxygen have higher requirements, also can increase the deaerator) in the clarifier.
It is the most economical way to use the mixture atmosphere of the product gas as the reducing protective atmosphere.
The product can also be used as hydrogen-rich feedstock gas to extract pure hydrogen, which is an economical method of hydrogen production.
Operating procedures: 1, hydrogen is a flammable and explosive gas, so it must be absolutely prevented from leaking in the room and contact with open fire, must make the operating environment well ventilated;
2, hydrogen production station is strictly prohibited fireworks, set a fire ban sign;
3, the raw material liquid ammonia should prevent leakage, such as leakage, processing personnel should wear a gas mask when handling, at the same time should avoid the random discharge of liquid ammonia;
4. All equipment in hydrogen production station should be reliably grounded and checked regularly;
5, raw ammonia into the decomposeable furnace, decomposeable gas without purification or purification unqualified, shall not be sent to the production line, so as not to affect the production and product quality;
6, must always pay attention to the electrical appliances and heating control temperature switch work normally, so as not to burn equipment, affect production.
When the equipment is down for a long time or needs maintenance, it should be pursed with nitrogen until the residual hydrogen in the whole system is less than 0.5% to ensure the safety of the equipment and avoid fire or explosion.