| 摘要 |
A differential vapor pressure (DVP) cell ( 150 ) is disposed in a divided wall column ( 100 ) that receives a feed comprising a first ( 102 A), second ( 102 B), third ( 102 C) component. A separation section ( 120 ) on the feed side of the divided wall column separates the feed in a vapor comprising the first and second component, and a liquid comprising the second and third component. The DVP cell is disposed in the divided wall column at a level below the point where the feed enters the column, and the DVP cell measures the concentration of the first component.
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