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US 2026/0210624 A1Published application
Process and apparatus for producing argon by cryogenic air separation
OwnerLars Kirchner, Christian Kunzinventors
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OwnerLars Kirchner, Christian Kunzinventors
Estimating the term…
The process and apparatus for producing an argon-enriched fraction by cryogenic air separation comprises—introducing feed air into a distillation system for oxygen-nitrogen separation comprising a low-pressure column,—withdrawing an argon-containing fraction from the low-pressure column and introducing it into a crude argon column having a crude argon top condenser being indirectly cooled by a cryogenic working fluid,—withdrawing an argon-enriched fraction from an upper section of the crude argon column,—measuring the oxygen content in the argon-containing fraction, characterized in that—measuring the nitrogen content in the argon-containing fraction,—predicting the nitrogen content in the crude argon condenser on the basis of the measured nitrogen content and—controlling the operation of the crude argon column depending on such corrected estimated argon concentration depending on such predicted nitrogen content in the crude argon condenser.
A process for producing an argon-enriched fraction by cryogenic air separation comprising
An apparatus for producing an argon-enriched fraction by cryogenic air separation comprising
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