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Removal of volatiles and other unwanted products in a polymer mix is a critical step in polymer manufacturing. In this study, the mixture of polymer and solvent, or cement, is mixed with superheated steam which causes the unwanted solvent to evaporate. This process is modelled using CFD using an Eulerian–Lagrangian approach. Simulations are carried out with three different initial polymer temperatures and the resulting solvent concentration, and the size of the cement particles between the three cases are compared.
Gabor et al., 2017a, 2017b
Discrete phase modeling (DPM) calculations of polymer devolatilization in steam contactors for polymer manufacturing processes are shown. (a) Cement particle size distribution (by diameter in micro-m) of escaped particles in outlet region (b) particle temperature distribution of escaped particles (c) mass fraction of cyclohexane per particle between three Cases having different inlet polymer temperatures; Case III = Case II + 20 K = Case I + 40 K
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