Ammonia synthesis starts heating furnace?
Thread Content
Hello everyone, I would like to ask how the ammonia synthesis start-up heating furnace works? How to calculate the heat load of the starting heating furnace?
The ammonia synthesis start-up electric furnace refers to the resistance heater installed in the ammonia synthesis tower. Its working principle is to use the gas flowing through the electric furnace wire to exchange heat with the high-temperature electric furnace wire to increase the gas temperature to meet the requirements for start-up and temperature rise and reduction. The power of the electric furnace is: Square root 3 times current times voltage (kW). The heat is: 860 times the electric furnace power (kcal). The selection of electric furnace power is generally determined by the conditions of the internal parts manufacturer. It should be noted that during actual operation, the electric furnace has safety gas volume requirements. If the gas volume is not reached, the surface temperature of the electric furnace wire will be high, which will easily damage the electric furnace. The calculation of safe air volume has been introduced in detail in this forum, please check it out.
I don’t know what type of synthesis tower the poster is using. If it is a cold-shock type with internal parts, you can refer to the opinions above. If it is Lucci’s, it can be heated with high-pressure steam. Of course, you can also use an electric furnace. The specific calculation manufacturer has it. There should be a formula. Just multiply it by a coefficient!
If it is a gas-fired heating furnace, how does the heating furnace work and how is the effective heat load calculated?