Abstract
Abstract In the EVA copolymers process (ethylene and vinyl acetate copolymers), the stream recycle ethylene contains vinyl acetate and acetic acid as impurities. It is necessary to remove the acetic acid to increase the quality of the final product. The removal of acetic acid by absorption with differents solvents has been investigated. Mass transfer coefficients needed for absorber simulation and design were obtained. The experimental data indicate that the resistance of a liquid film to mass transfer is practically negligible when using water and vinyl acetate as solvents. The absorber was simulated by using a nonequilibrium model which reproduced the experimental results to deviations of less than 20%.
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