The recovered ethanol with less than 10% methanol can be purified in a dehydration tower 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%。
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 dehydration tower.
文章介绍了系统的总体结构和主要特点，并以溶剂脱水塔釜水浓度高事件为例阐述了系统的具体实现。
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