Abstract
The kinetics of vinyl acetate synthesis reaction was studied in an integral reactor over zinc acetate catalyst supported on active carbon. Nineteen Hougen-Watson models including those reported in the literature and a two-step rate-control model were subjected to discrimination using a differential response function. The latter model—adsorption of acetylene and of acetic acid as rate controlling—was found to satisfactorily describe not only the present data but data reported in the literature as well. While the kinetic parameters were found to agree closely with the reported values, the observed temperature dependence of adsorption parameters was explained as due to side reactions involving the catalyst itself. Multiple-response modeling is recommended to understand the system better.
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