The recovered ethanol with less than 10% methanol can be purified in a dehydrationtower and a separation tower with 40 theoretical plates and a reflux ratio of 15.
环合废液脱水后，分离塔回流比为15，理论板为40时，回收乙醇中甲醇的质量分数小于10%。
2
The total structure and main features are introduced. At the end, the realization has been introduced by taking example for high water on the bottom of PTA solvent dehydrationtower.