Document Type


Date of Award


Degree Name

Master of Science in Chemical Engineering - (M.S.)


Chemical Engineering and Chemistry

First Advisor

Hung T. Chen

Second Advisor

Ernest N. Bart

Third Advisor

John E. McCormick


A semicontinuous parametric pump with batch operation during one half-cycle and continuous operation in the other half-cycle was experimentally investigated in the model system, toluene-n-heptane on silica gel adsorbent. Comparison was made with analytical results obtained by the equilibrium theory. It was shown that when the penetration distance for the cold cycle was less than or equal to that of the hot cycle and the height of the column, the rate of production of pure solvent in the semicontinuous pump may become quite large relative to that in the continuous pump.



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