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US09000235B2 Extractive distillation of crude alcohol product 有权
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Extractive distillation of crude alcohol product
Abstract:
Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid using an extractive distillation column. The column yields a residue that comprises ethanol, acetic acid, and the extractive agent. The extractive agent may be water and may be separated from the residue and returned to the extractive distillation column.
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