Heat integrated distillation apparatus
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United States of America Patent
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May 14, 2013
Grant Date -
May 24, 2012
app pub date -
Sep 24, 2010
filing date -
Oct 5, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is a heat integrated distillation apparatus includes: rectifying column including a trayed section or a packed bed section; stripping column including a trayed section or a packed bed section located higher than rectifying column; first pipe for connecting top part of the stripping column with bottom part of the rectifying column; and compressor that compresses vapor from top part of the stripping column to feed the compressed vapor to bottom part of the rectifying column. The heat integrated distillation apparatus further includes: heat exchanger located either at the trayed section or a packed bed section of rectifying column or at the trayed section or a packed bed section of stripping column; second pipe; and third pipe for circulating fluids through the heat exchanger.
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