Molecular sieve depressurization system utilizing a low pressure inductor type vapor condenser
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United States of America Patent
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Mar 5, 2019
Grant Date -
Apr 13, 2017
app pub date -
Oct 10, 2016
filing date -
Oct 8, 2015
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Abstract
A method and system of depressurizing a molecular sieve used in ethanol production is shown and described. The method and system utilizes a vapor mixing condenser that receives a vapor sieve feed from the molecular sieve during the depressurization cycle. The vapor from the molecular sieve during the pressurization cycle is used to heat the 190-proof product flow. The heated product flow is diverted directly to the 190-proof product vaporizer, which increases the input product flow temperature to the vaporizer, thereby reducing the amount of heat needed to vaporize the 190-proof product flow. The reduction in heat needed reduces energy costs and increases equipment life.
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