| 초록 |
MEK(methyl ethyl ketone), one of major volatile organic compounds(voc), was separated from its aqueous solution using a flat membrane contactor. The overall mass transfer coefficient was analyzed theoretically for the membrane contactor utilized and it was compared with the overall mass transfer coefficient observed experimentally. A correlation equation of Sherwood number was determined in terms of Reynolds number and Schmidt number for the concentration boundary layer which might exist on the surface of the membrane installed in a batch type apparatus. This correlation equation was determined experimentally from a separation experiments of phenol by a supported liquid membrane set up in the same apparatus. It was applied to estimate a theoretical overall mass transfer coefficient of MEK through the membrane contactor. An experimental overall mass transfer coefficient could be obtained from the equation which was derived to describe the MEK separation phenomena in the batch type membrane contactor. The theoretical overall mass transfer coefficient was in good agreement with the experimental overall mass transfer coefficient in a sense that they are in the same order of magnitude. |
