Journal
CHEMICAL ENGINEERING RESEARCH & DESIGN
Volume 79, Issue A8, Pages 998-1004Publisher
INST CHEMICAL ENGINEERS
DOI: 10.1205/02638760152721550
Keywords
CFD; micromixing; finite-mode pdf; precipitation; barium sulphate; tubular reactor
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Precipitation of barium sulphate from aqueous solutions was investigated in a tubular reactor. Crystal size distribution and morphology were measured at the reactor outlet. Experimental data were compared with model predictions using CFD coupled with a micromixing model. Some anti-symmetric effects of ion excess on precipitation were observed. Activity coefficients were used in modelling precipitation, but even if thermodynamic properties of the solutions plays a role in determining nucleation and growth rates, this approach alone is not sufficient to give satisfactory agreement.
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