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本发明公开了一种醋酸加氢制乙醇精馏工艺简化的方法。采用萃取精馏的方式,使能够得到纯度更高的乙醇产品;精馏装置可满足生产醋酸乙酯产品及乙醇产品的分离要求;此外醋酸乙酯分离与乙醇分离共用分离设备,在乙醇生产时装置得到粗醋酸
The invention discloses a method for simplifying an ethanol distillation process of acetic acid hydrogenation to ethanol. The method of extractive distillation makes it possible to obtain ethanol products with higher purity. The rectification device can meet the separation requirements for the production of ethyl acetate products and ethanol products. In addition, the ethyl acetate separation and ethanol separation share the separation equipment. During the ethanol production Device to get crude acetic acid