CFD modeling of LDPE autoclave reactor to reduce ethylene decomposition: Part 1 validating computational methods

E Turman, W Strasser - Chemical Engineering Science, 2022 - Elsevier
CFD was employed to develop a rigorous model of an LDPE autoclave reactor. Different
numerical settings within the solver are evaluated to eliminate false diffusion and to reflect …

A computational fluid dynamics model coupled with ethylene polymerization kinetics for fluidized bed polyethylene reactor

M Cai, Z Tian, Z Liu, B Liu - Powder Technology, 2022 - Elsevier
This work aims at exploring the effect of macro operating conditions on the distribution of
temperature field and chain microstructures of polymer in a gas phase ethylene …

Modeling vapor solubility in semicrystalline polyethylene

JA Moebus, BR Greenhalgh - Macromolecular Reaction …, 2018 - Wiley Online Library
The solubility of vapors within semicrystalline polyethylenes produced in the gas phase
process is examined. Experimentally measured solubilities of ethylene, 1‐butene …

CFD analysis of mixing in thermal polymerization of styrene

H Patel, F Ein-Mozaffari, R Dhib - Computers & chemical engineering, 2010 - Elsevier
Thermal polymerization of styrene in a lab-scale CSTR equipped with a pitched blade
turbine impeller was simulated using a computational fluid dynamics (CFD) software …

CFD modeling of the ethylene–vinyl acetate copolymerization autoclave reactor: Effects of comonomer ratio on reactor dynamics and copolymer properties

S Shin, D Lee, JY Oh, Y Kim, MJ Park… - Chemical Engineering …, 2023 - Elsevier
Computational fluid dynamics (CFD) modeling of an industrial ethylene–vinyl acetate
autoclave copolymerization reactor was conducted to evaluate the effects of comonomer …

Surrogate-model-based optimization of a nonideal polymerization reactor for producing tailored molecular weight distribution

S Shin, WB Lee, MJ Park - Chemical Engineering Journal, 2024 - Elsevier
The optimization of polymerization reactors with nonideal mixing has been greatly hindered
by a tremendous computation burden. In this study, a global optimization framework to …

Numerical analysis of industrial styrene polymerization in nonideal tower reactors

J Wang, J Wang, LF Feng - Industrial & Engineering Chemistry …, 2022 - ACS Publications
An integrated model combining computational fluid dynamics (CFD) with polymerization
kinetics was developed to investigate the industrial styrene thermal polymerization process …

Controlling Law of Flow and Mixing Behavior in an Autoclave for the Production of Low-Density Polyethylene

Z Chen, P Zhang, Z Tang, X Fan, Y Yang… - Industrial & …, 2024 - ACS Publications
This work investigates how typical impellers control flow and mixing behaviors within low-
density polyethylene (LDPE) autoclaves via well-verified CFD simulations. Results show that …

CFD modeling of styrene polymerization in a CSTR

CZ Xu, JJ Wang, XP Gu, LF Feng - Chemical Engineering Research and …, 2017 - Elsevier
A computational fluid dynamics (CFD) approach coupled with polymerization kinetics is
implemented to investigate styrene polymerization using azobisisobutyronitrile (AIBN) as …

Multicompartment model of an ethylene–vinyl acetate autoclave reactor: a combined computational fluid dynamics and polymerization kinetics model

Y Lee, K Jeon, J Cho, J Na, J Park, I Jung… - Industrial & …, 2019 - ACS Publications
In this paper, we present a multicompartment model of an ethylene–vinyl acetate autoclave
reactor including the mixing effects of the stirring device analyzed using computational fluid …