| 摘要 |
A divided exchange column includes a shell column having a first longitudinal axis, a cylindrical wall spaced apart from and surrounding the first longitudinal axis and defining a first interior space, a first divided wall column having a second longitudinal axis substantially parallel to the first longitudinal axis, and a second divided wall column having a third longitudinal axis substantially parallel to the first and the second longitudinal axes, where the first divided wall column and the second divided wall column are positioned in the first interior space of the shell column.
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