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An aqueous mixture of a volatile component A containing 7 . 9 4 mol % A , preheated to its boiling point, is to be
An aqueous mixture of a volatile component A containing mol A preheated to its boiling point, is to be fed to the top of a continuous stripping column operated at atmospheric pressure. Vapour from the top of the column is to contain mol A No reflux is to be returned. Two methods are under consideration, both calling for the same expenditure of heat, namely vaporisation of mol per mole feed in each case. aMethod is to use a still at the bottom of plate column, generating vapour by use of steam condensing inside a closed coil in the still.bIn method the still and heating coil are omitted and live steam is injected directly below the bottom plate ie makes the ascending vapour flow Equilibrium data is given in the table below. Use calculations to show the advantages of eac
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