Relationship between inlet temperature of the compressor in the ammonia synthesis process and compressor power consumption
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In the ammonia synthesis process, six-stage compressed water gas is used. Currently, the temperature of the water-gas feed to the compressor in summer is 37°C. I would like to ask whether cooling the gas to 20°C before it enters the compressor can reduce the power consumption of the compressor, and by how much? Thank you!
The relationship between the inlet temperature of compressors in the ammonia synthesis process and the power consumption of those compressors is a topic worthy of study.
The lower the inlet temperature, the lower the energy consumption of the compressor
When the compressor inlet temperature is low, with the same required volume of gas flow, the compressor’s load decreases, and consequently its power consumption also drops
Under conditions such as constant gas flow rate, gas composition, and compression ratio, reducing the inlet temperature can help save some power, that is, reduce electricity consumption.
When compression reduces the temperature of the gas, the most direct effect is that it allows an increase in the volume of gas and thus an increase in production. As the gas temperature decreases, the amount of saturated water contained in the gas also decreases, increasing the volume of the available gas and thus helping to save energy on the compressor.