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US 2004/0104108 A1Published application
High capacity purification of thermally unstable compounds
OwnerRobert Michael Mason, Jeffrey Alan Goodwin +2inventors
InventorsRobert Michael Mason, Jeffrey Alan Goodwin, Ronald Drew Myers, Michael Stanley DeCourcy
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Abstract
Separations processes and apparati capable of purifying thermally sensitive materials at high capacity. An apparatus having a rectification section and a stripping section with the stripping section having a stripping tray with 5 to 50% open area, a pressure drop from 0.02 psi to 0.2 psi and a tray efficiency during operation of the column which is equal to or greater than 20%.
Claims10
A separations apparatus comprising:
- a rectification section;
- a stripping section having at least one stripping tray;
- said at least one stripping tray extends across the cross-sectional area of the rectification or stripping section and has a tray cross-sectional area and a plurality of open areas through which vapor may pass, wherein each of the open areas has an open cross-sectional area, wherein the sum of all of said open cross-sectional areas has a value in the range of from about 5% to about 50% of the tray cross-sectional area, and wherein
- said at least one stripping tray produces a tray pressure drop during operation of the apparatus and said tray pressure drop is in a range of from about 1 mm Hg (0.02 psi) to about 10 mm Hg (0.2 psi), and
- said at least one stripping tray has a tray efficiency during operation of the column which is equal to or greater than 20%.
2 more elements
Dependencies are inferred from the claim text.