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A stripping column is a piece
of equipment that separates two or more components from each other based
on differences between the solubilites of the components in the gas and
liquid phase. It is similar to an adsorption, except that the two phases
are now passed through the column in a counter-current flow.
A stripping column could also be used, for example, to remove
an impurity from a gas by mixing the gas with a liquid where the solubility
of the impurity is much greater in the liquid.
A basic schematic of an stripping column is shown below:
The gas containing impurities and the relatively clean liquid enter
the column where they are mixed. A good portion of the impurities are dissolved
into the liquid phase, and the cleaner gas and dirtier liquid then leave
the column as two separate exit streams.
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© 2007 Arizona Board of Regents for The University of Arizona |