Method and apparatus for providing pressurized oxygen-enriched gaseous air product

A high pressure process for producing a pressurized oxygen-enriched gaseous air product using an air separation plant is presented. A first component of the air inflow is fed to a first turbine unit (5) at a temperature of a first temperature range, expanded using said first turbine unit (5), and fed into a high-pressure column (111). A second component of the intake air quantity is fed to a second turbine unit (6) at a temperature of a second temperature range and expanded using said second turbine unit (6) and fed into the low-pressure column (12). The pressurized oxygen-enriched air product is provided in the form of an inner compressed product at a pressure of 16 bar to 50 bar, wherein evaporation begins at a temperature within a third temperature range. The third temperature range is higher than the first temperature range and the second temperature range; selecting a second temperature range such that a two-phase mixture having a liquid content of 5% to 15% is formed at the outlet of the second turbine