Thus, the method has overcome the shortcomings of Underwood formula, and provides a sound basis for short-cut design of multicomponent batch distillation column.

• 该方法并不要求相对挥发度为常数 ；并且能准确计算顶浓 ；克服了通常所采用的Underwood公式法的缺陷 ；为多元分批精馏的简捷设计奠定了基础 .