Machine train for producing nitric acid
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United States of America Patent
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Issued Date -
Oct 12, 2017
app pub date -
Apr 5, 2017
filing date -
Apr 6, 2016
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Abstract
A machine train for producing nitric acid includes: a steam turbine having a steam turbine rotor rotating at a first rotational speed; a first compressor having a first compressor rotor rotating at a second rotational speed; a second compressor having a second compressor rotor rotating at a third rotational speed; and an expander having an expander rotor rotating at a fourth rotational speed. The steam turbine drives the first compressor. The rotor of the first compressor drives the second compressor. The expander drives the second compressor. The second compressor is configured and efficiency optimized with respect to its third rotational speed such that during operation of the machine train the first rotational speed of the steam turbine, the second rotational speed of the first compressor, the third rotational speed of the second compressor and the fourth rotational speed of the expander are equal,
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