PARTIAL PRESSURE DISTILLATION PROCESS
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United States of America Patent
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Issued Date -
Jul 7, 2011
app pub date -
Jul 13, 2010
filing date -
Jul 13, 2009
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Abandoned
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Abstract
A method for separating at least one volatile component such as an alkyl ester, an alcohol, hydroxymethylfuran, dimethylfuran, methyl tetrahydrofuran, a polyhydric alcohol, or a reduction product of a polyhydric alcohol from at least one non-volatile component such as a saccharide, a peptide, or ash in a mixture is disclosed. The method includes heating the mixture to a temperature of between 150-250° C. and contacting the mixture with a superheated distillation alcohol in a gaseous or vapor phase. The distillation alcohol pressure imparts partial vapor pressure on the at least one volatile component of the mixture and distills at least a portion of the at least one volatile component from the mixture.
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