Distillation systems
AssigneeFluor Technologies Corporation
InventorsHenry Kister, Walt Stupin
Life of this patent
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Abstract
A differential vapor pressure (DVP) cell (150) is disposed in a divided wall column (100) that receives a feed comprising a first (102A), second (102B), third (102C) 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.
Claims20
A plant comprising:
- a divided wall column that receives a feed comprising at least a first component, a second component, and a third component;
- wherein a separation section on a feed side of the divided wall column separates the feed into a vapor that comprises the first and the second component, and a liquid that comprises the second and the third component;
- a differential vapor pressure cell at least partially disposed in the divided wall column at a level below a point where the feed enters the column on the feed side, wherein the differential vapor pressure cell measures a concentration of the first component;
- and
- a partition that separates the feed side from a side product side.
A method of operating a plant comprising:
- providing a divided wall column with a partition and comprising a separation section on a feed side that receives a feed comprising at least a first component, a second component, and a third component, wherein the partition separates the feed side from a side product side;
- separating the feed in the separation section on the feed side into a vapor that comprises the first and the second component, and a liquid that comprises the second and the third component;
- coupling a differential vapor pressure cell to the divided wall column at a level below a point where the feed enters the divided wall column on the feed side;
- and
- measuring a concentration of the first component using the differential vapor pressure cell.
Dependencies are inferred from the claim text.