作者: Ladislav Fekete , Nickolay Ostrovskii
关键词: Reaction rate constant 、 Mass transfer coefficient 、 Reaction rate 、 Thermodynamics 、 Bulk polymerization 、 Polymerization 、 Polymer chemistry 、 Mass transfer 、 Catalysis 、 Heptane 、 Chemistry
摘要: The olefins polymerization process in a slurry reactor is discussed. reaction rate dynamics was analyzed and the contributions of feed flow, gas-liquid mass transfer, reaction, catalyst deactivation were estimated. propylene solubility solvent mixture “heptane” calculated using Soave-RedlichKwong equation state. These data then approximated by Henry-like results verified experiments. influence dissolving ”heptane which examined special experiments without has provided independent estimation transfer coefficient. It been shown that during first 20-30 min test much lower (or higher) than total monomer consumption, depending on reactant addition sequence. method kinetic interpretation corresponding mathematical model are proposed. enables to estimate parameter dissolution, constant polymerization, as well parameters active centers transformation – activation, self-regeneration. An adequacy proved description at two different pressures but with same values. Polyolefins J (2015) 2: 89-97