Abstract
Abstract Operational characteristics of a moving feed-injection system were studied for separation of diethyl ether (DEE) and dichloromethane (DCM) by gas-liquid chromatography. The experimental data were compared with the results obtained by the theoretical plate model. As anticipated from the theoretical work, moving feed-injection chromatography had some advantages over the conventional preparative case. Its operation was flexible, the bandwith was decreased by 20%, and peak maximum was increased as much as two times. The theoretical plate model, which assumed linear partition isotherm, instantaneous equilibrium, and constant flow rate through the column, was observed to be in relatively good agreement with the experimental results, and it could be used as a powerful predictive tool for determining optimum operating conditions of the moving feed-injection system.
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