相对挥发度大讨论? 正是因为塔顶和塔底的相对挥发度相差很大,简捷计算结果如下: minimum reflux ratio 1.8e+06 ... 完全同意。 简捷计算的前提就是假定相对挥发度为常数,所以这个在相对挥发度变化较大的体系中不适合,这个在帮助文档中也有提及 in particular, for columns in which the relative volatilities vary greatly, shortcut methods will give poor results since both the fenske and underwood methods assume that one average relative volatility may be used for calculations for each component. 所以不要太迷恋简捷塔~ 查看更多