Binary periodic distillation scheme with enhanced energy conservation—II

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Abstract A laboratory-scale periodic distillation column using the idealized Cannon scheme which has been proposed in Part I was constructed and some basic experiments were carried out in order to examine its performance in view of energy conservation. A five-stage column was used. The system employed is the water-methanol mixture. The Murphree stage efficiency which was estimated on the basis of experimental results was 84.6%. The average vapor rate, which is roughly proportional to the energy consumption rate, is 50 and 20% lower than the vapor rate required for obtaining the same separation by use of a conventional continuous column with the same number of stages whose Murphree stage efficiency is 84.6 and 100%, respectively.

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