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本发明公开了一种降低醋酸酯加氢制乙醇工艺过程能耗的方法,所述方法采用将醋酸酯加氢反应液中未反应的醋酸酯与醇生成的二元共沸混合物不再进行后续特种精馏分离,而是直接返回至加氢工
The invention discloses a method for reducing the energy consumption during the process of the hydrogenation of acetate to ethanol, which adopts the method that the binary azeotropic mixture formed by reacting the unreacted acetate with the alcohol in the hydrogenation reaction liquid of acetate is not carried on subsequent Special distillation separation, but directly returned to the hydrogenation