Questions about the design of synthetic electric furnaces?
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Our current ammonia synthesis tower has a diameter of DN1000, the electric furnace has a capacity of 1000 Kw, and the circulation pump has a volume of 6.4 cubic meters. However, the heating and reduction processes do not work well – the electric furnace heats up too slowly. Therefore, I would like to ask: what size electric furnace should be used for such a synthesis tower? Why? I asked for advice.
According to what you said, it should be sufficient. It depends on whether the voltage of your electrical system can handle the load
Yes, a furnace that can generate 1000 kW per meter should be sufficient; the key is whether the actual power output of the furnace meets this figure. Additionally, a circulator that produces 6.4 cubic meters per meter has a relatively high gas circulation volume.
So what is a good average airspeed? Around 3000? The electric furnace can reach over 800 degrees – I wonder how that is
The conditions are better than those in my factory. Our factory’s ammonia synthesis tower has a diameter of DN1000, the electric furnace has a capacity of 700 Kw, and the turbine has a volume of 6.0 cubic meters. The heating and reduction process works fine; it takes around 160 hours to complete
According to the poster, there is no issue with the configuration; the key question is whether it’s possible to raise the power output to 1000 kW If it can’t be increased, during regeneration one can only control the circulation volume.
Reply to 4# yfjin2010: It is suggested that the original poster calculate the actual power of the electric furnace based on the current and voltage, to determine whether it meets the design requirements.
For this single-tube counterflow tower, we ended up running the electric furnace at full capacity while reducing the circulation rate; eventually, we were worried that problems might arise with the electric furnace, so we stopped using it. It’s difficult to control the temperature, and it’s also impossible to maintain stability in it – really, we don’t know what to do
Your electric furnace is larger than mine, so there should be no problem with heating and reduction. When the temperature of the insulating layer reaches above 485 degrees, it’s possible to apply a slight extra pressure to increase the reaction heat and thereby facilitate the reduction of the catalyst at the lower level
Oh, later on we decided to proceed with production in order to carry out the temperature reduction to the end; I’m not sure if this will have any significant effects