| 摘要 |
PROBLEM TO BE SOLVED: To provide a method wherein processings are integrated by separating mixtures into two fractions by distillation to thereby reduce costs of capital.SOLUTION: There is provided a method for separating one or more feed mixtures by distillation in a column having one, two, or three partition walls which continue in longitudinal direction of the column from one end to the other end of the column and partition the interior of the column into two, three, or four completely separate column subregions by using a liquid-phase flow from a first column subregion into a second column subregion, optionally a third column subregion, and optionally a fourth column subregion and in countercurrent to a flow of vapor, wherein the one or more feed mixtures are separated into two fractions in the column and the column has a single bottom vaporizer and a single condenser at the top of the column. |
