APPARATUS FOR PRODUCING LIQUID NITROGEN
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United States of America Patent
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Issued Date -
Jun 18, 2015
app pub date -
Dec 17, 2013
filing date -
Dec 17, 2013
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Abstract
An apparatus for producing liquid nitrogen is provided. The apparatus includes a heat exchanger, a pair of turbine-boosters, a warm compressor, an air separation unit having a single column, a top condenser and a bottom reboiler, a liquid/gas separator, and an optional subcooler. The apparatus is configured to produce merchant or non-merchant grade liquid nitrogen using the pair of turbine-boosters to provide refrigeration and energy for the process.
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