Method and apparatus for distillation

The present invention relates to an apparatus and method for the distillation of methanol (Figure 1), but which can also be used to distill other products such as ethanol. The aim of the invention is to reduce the consumption of energy and cooling water and/or electricity during the distillation of the crude intermediate product; the distillation process comprises a pretreatment stage for removing volatile components, referred to as a stabilization stage; and a concentration stage comprising one or more columns for distillation. 本发明涉及一种用于甲醇的蒸馏的设备和方法(图1)，但是其也可用于蒸馏其他产物如乙醇。本发明的目的是在粗中间产物的蒸馏过程中减少能量和冷却水和/或电的消耗；该蒸馏过程包括用于去除挥发性组分的预处理阶段，称为稳定阶段；以及浓缩阶段，包括一个或多个用于蒸馏的塔。