Distillation reflux reduction
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United States of America Patent
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Jul 16, 2019
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app pub date -
Jul 7, 2017
filing date -
Jul 7, 2017
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Abstract
An improvement which reduces the reflux requirement for a fractional distillation system of an alcohol production plant (40, 60, 70, 80). The improvement includes a mixing device (44) for combining a water/alcohol mixture having an enhanced alcohol content (50, 62, 72, 82) with the reflux liquid (16) in the absence of a vapor/liquid equilibrium interface to form a reflux mixture (56) for supply to the rectifier column (14). The mixture having an enhanced alcohol content may be sourced from a location along the rectifier-reflux vapor to liquid system flow path, or from another source.
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