Calculate the Power of Cryogenic Air Separation Units | AIChE

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Calculate the Power of Cryogenic Air Separation Units


Quickly estimate the power consumption of a cryogenic air separation unit using your calculator, instead of your computer.

Cryogenic air separation units (ASUs) use some of the largest compressors ever built to separate atmospheric air into its primary components, nitrogen and oxygen, as well as argon and other inert gases. A modern large ASU might consume up to 100 MW of electricity — that’s the capacity of a small power plant. Thus, it is important to understand how much power the ASU in your facility might consume and where the power goes. Armed with the knowledge in this article, you will be able to estimate and analyze the power consumption of your air separation plant and reduce your facility’s energy operating cost.

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