| 摘要 |
A method of treating a mixture of ethyl alcohol and water for the reduction of impurities comprising the steps of: a) mixing ethyl alcohol and water at a temperature of from about 5 DEG C. to about 10 DEG C. to obtain a mixture; b) flowing the mixture at a temperature of from about 5 DEG C. to about 20 DEG C. through three layers of an activated charcoal adsorber having surface activities of 1) from about 0.6 to about 0.8 mg-equivalent/liter, 2) from about 0.8 to about 1.0 mg-equivalent/liter, and 3) from about 1.0 to about 1.4 mg-equivalent/liter respectively, and a total pore volume of from about 1.4 to 1.6 cm3/g; c) allowing the mixture to contact the activated charcoal adsorber for about 2 to 15 minutes, preferably for about 5 to 10 minutes; and d) recovering the initial capacity of the activated charcoal adsorber by flowing a stream of dry air, having a temperature of from about 100 DEG C. to about 400 DEG C., through the activated charcoal adsorber.
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