A method for producing a pressurized, oxygen-rich, gaseous air product using an air separation plant comprising a rectification column system having a high-pressure column and a low-pressure column and a main heat exchanger, a first turbine unit, and a second turbine unit, wherein - the high-pressure column is operated in a first pressure range of 4 to 7 bar, the low-pressure column is operated in a second pressure range of 1 to 2 bar, and at least a predominant proportion of a total feed air quantity supplied to the rectification column system is compressed to a pressure in a third pressure range which is more than 3 bar above the first pressure range, - a first partial quantity of the feed air quantity compressed to the pressure in the third pressure range is supplied to the first turbine unit at the pressure in the third pressure range or at a pressure in a fourth pressure range above the third pressure range and at a temperature in a first temperature range, decompressed to a pressure in the first pressure range using the first turbine unit, and fed into the high-pressure column, - a second partial quantity of the feed air quantity compressed to the pressure in the third pressure range is supplied to the second turbine unit at the pressure in the third pressure range or at a pressure in a fifth pressure range above the third pressure range and at a temperature in a second temperature range, decompressed to a pressure in the second pressure range using the second turbine unit, and fed into the high-pressure column, - oxygen-rich liquid is withdrawn from the rectification column system to provide the gaseous, pressurized, oxygen-rich air product, brought to a pressure in a sixth pressure range of 16 to 50 in a liquid state, supplied to the main heat exchanger, evaporated therein at the temperature in a third temperature range, and discharged from the air separation plant, wherein - the first partial quantity of the feed air quantity compressed to the pressure in the third pressure range is provided at the pressure in the fourth pressure range and is thereby brought to the pressure in the fourth pressure range using a booster unit, - the first turbine unit is used to drive the booster unit, - the second turbine unit is coupled to a generator or to a warm booster compressor for air, and - a proportion of less than 5% of all air products withdrawn from the air separation plant is withdrawn from the air separation plant in an unevaporated and liquid state, characterized in that - the second temperature range is selected such that a two-phase mixture having a liquid proportion of 5 to 15% forms at the outlet of the second turbine unit, - the third temperature range is above the first temperature range and the second temperature range, and - the temperature in the first temperature range and the temperature in the second differ from each other by not more than 10 K. - the high-pressure column is operated in a first pressure range of 4 to 7 bar, the low-pressure column is operated in a second pressure range of 1 to 2 bar, and at least a predominant proportion of a total feed air quantity supplied to the rectification column system is compressed to a pressure in a third pressure range which is more than 3 bar above the first pressure range, - a first partial quantity of the feed air quantity compressed to the pressure in the third pressure range is supplied to the first turbine unit at the pressure in the third pressure range or at a pressure in a fourth pressure range above the third pressure range and at a temperature in a first temperature range, decompressed to a pressure in the first pressure range using the first turbine unit, and fed into the high-pressure column, - a second partial quantity of the feed air quantity compressed to the pressure in the third pressure range is supplied to the second turbine unit at the pressure in the third pressure range or at a pressure in a fifth pressure range above the third pressure range and at a temperature in a second temperature range, decompressed to a pressure in the second pressure range using the second turbine unit, and fed into the high-pressure column, - oxygen-rich liquid is withdrawn from the rectification column system to provide the gaseous, pressurized, oxygen-rich air product, brought to a pressure in a sixth pressure range of 16 to 50 in a liquid state, supplied to the main heat exchanger, evaporated therein at the temperature in a third temperature range, and discharged from the air separation plant, wherein - the first partial quantity of the feed air quantity compressed to the pressure in the third pressure range is provided at the pressure in the fourth pressure range and is thereby brought to the pressure in the fourth pressure range using a booster unit, - the first turbine unit is used to drive the booster unit, - the second turbine unit is coupled to a generator or to a warm booster compressor for air, and - a proportion of less than 5% of all air products withdrawn from the air separation plant is withdrawn from the air separation plant in an unevaporated and liquid state, characterized in that - the second temperature range is selected such that a two-phase mixture having a liquid proportion of 5 to 15% forms at the outlet of the second turbine unit, - the third temperature range is above the first temperature range and the second temperature range, and - the temperature in the first temperature range and the temperature in the second differ from each other by not more than 10 K.