Simulation for grade transition of ethylene slurry polymerization process
Journal Title: Science Paper Online - Year 2008, Vol 3, Issue 12
Abstract
The equation of state of Perturbed-Chain Statistical Associating Fluid Theory is applied to predict thermodynamic properties and phase equilibria of ethylene slurry polymerization system. The reasonable ranges of the kinetic constants of these elementary reactions and their activation energies are determined. According to the molecular weights and molecular weights distribution, the number of active sites for the catalyst is found to be five. Steady and dynamic models of the process are developed with the molecular weight and its distribution as the targets. The dynamic model simulates well grade transition processes.
Authors and Affiliations
Xueping GU, Lianfang FENG, Jiajun WANG, Zhiwu TANG, Bo LIU
Keywords
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