The process of air separation on its components, according to cryogenic low-pressure procedure is complete, whereas the result is a number of products of different amount, pressure and temperature. The problem occurs during the distribution of energy consumption and other costs per products. In this case, the smallest amount of technical work in the process of air separation on its components is taken as a criteria. The largest part of the paper is devoted to investigation of designed and realized energy efficiency of the splitting cryogenic process. Concretization of this matter is done for the process which is performed in Oxygen Plant of Copper Mining and Smelting Complex Bor in Bor.
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