Gas separation apparatus and gas separation method
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United States of America Patent
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Mar 9, 2004
Grant Date -
May 23, 2002
app pub date -
Nov 7, 2001
filing date -
Nov 10, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Using a distillation separator, a gas to be treated is separated into a plurality of gas groups having different boiling points. Then, the specific gases included in each of the plurality of gas groups separated at the first separator and having similar boiling points are separated using a chromatographic separator. In this manner, specific gases can be separated from the gas to be treated containing a plurality of specific gases.
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