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Dynamic Multi‐ P hase, Multi‐ Z one Modeling of Flash Separators for Highly Viscous Polymerization Processes
Author(s) -
Pladis Prokopis,
Baltsas Apostolos,
Kanellopoulos Vasileios,
Kiparissides Costas
Publication year - 2014
Publication title -
macromolecular reaction engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.37
H-Index - 32
eISSN - 1862-8338
pISSN - 1862-832X
DOI - 10.1002/mren.201300169
Subject(s) - separator (oil production) , materials science , dynamic simulation , ternary operation , vinyl acetate , autoclave , process engineering , mechanical engineering , copolymer , thermodynamics , computer science , composite material , simulation , engineering , polymer , physics , metallurgy , programming language
Summary A multi‐phase, multi‐zone mathematical model is developed to describe the dynamic operation of an industrial high‐pressure flash separator for a ternary (Ethylene–Vinyl acetate–EVA) system. The proposed description of the high‐pressure separator can take into account the complex gas carry‐under and liquid droplets carry‐over phenomena occurring during the non‐equilibrium operation of the separator. Numerical simulations have been carried out to determine the effect of operating conditions on the dynamic operation and separation efficiency of a HPS unit operating in series with an industrial scale high‐pressure EVA autoclave. The proposed model is capable of simulating the dynamic operation of an industrial‐scale HPS over a wide range of operating conditions and EVA copolymer grades.