Process and apparatus for producing gaseous oxygen by cryogenic distillation of air
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United States of America Patent
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May 22, 2018
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N/A
app pub date -
Sep 9, 2014
filing date -
Sep 17, 2013
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Abstract
Process for producing gaseous oxygen by cryogenic distillation of air, wherein a portion of the feed air flow is brought to a pressure P1, by means of a first compressor, the suction temperature T0 of which is between 0 and 50° C., the gas at the pressure P1 is cooled, in order to generate an air stream at the pressure P1 and the temperature T1 between 5 and 45° C., a portion of the air compressed in the first compressor undergoes an additional compression step starting from the temperature T1 and pressure P1 to a pressure P2 greater than P1, then is cooled, to the temperature T2 where T2 and T1 differ by less than 10° C.
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