本发明是净化粗乙醇减少副产品的生成和最大化乙醇生成的过程。过程包括在催化剂存在下在反应器中醋酸加氢反应生成粗乙醇产品的步骤。该过程还包括分离步骤,即在净化区至少分离部分粗乙醇产品。净化区优先地包括第一塔,该塔产 The present invention is a process of purifying caustic ethanol to reduce by-product formation and maximize ethanol production. The process includes the step of hydrogenating acetic acid in a reactor in the presence of a catalyst to produce a crude ethanol product. The process also includes a separation step of separating at least a portion of the caide ethanol product in the purification zone. The decontamination zone preferably includes a first column, which is produced