Abstract
AbstractThe kinetic behavior of a Ziegler‐Natta catalyst at 86 °C under homopolymerization conditions in a continuous slurry polymerization reactor is studied. The effects of ethylene and hydrogen concentrations on the polymerization rate and polymer properties such as $\overline M _{\rm n}$ and $\overline M _{\rm w}$ were investigated. A kinetic model based on two catalytic lumped sites was developed to predict polymerization rate and $\overline M _{\rm n}$ and $\overline M _{\rm w}$ from reactor operating conditions. Each lumped site is assumed to be activated instantaneously. Such activation either is spontaneous or requires an ethylene molecule. The model has high fidelity in predicting experimental observations using kinetic parameters estimated from the experimental data and is used for industrial process development, optimization, and new product development.magnified image
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