Using advanced flow visualization techniques and computational fluid dynamics to characterize and optimize the mixing of micron-sized polymeric particles in slurry reactors

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Solid-liquid mixing plays a crucial role in many processes such as solid-catalyzed reaction, suspension polymerization, dispersion of solids, dissolution and leaching, crystallization and precipitation, adsorption, desorption, and ion exchange. In the proposed research project, we will collaborate with Xerox Research Centre of Canada (XRCC) to characterize and optimize the mixing of polymeric particles in slurry reactors. We will employ extensive experimentation, advanced flow visualization techniques, and Computational Fluid Dynamics (CFD) in order to gain deeper insights into the mixing of solid suspension. The experiments will help examine the effects of mixing parameters and operating conditions on the degree of homogeneity and solid concentration profiles within the reactor. CFD will assist in the mathematical rendering and computer simulation of the process. The model thus developed will be validated and deployed using advanced optimal control techniques to determine the optimal operating conditions and design parameters for the solid-liquid mixing process. This investigation will also provide us with valuable information regarding the system dynamics, which is of special importance in commercial applications. The findings of this study may lead to capital cost savings, chemical cost reduction, improved equipment design, enhanced quality of products, and more efficient use of power. Two HQP will receive advanced training in the area of computational fluid dynamics, advanced flow visualization, process development, and optimization. They will get more thoroughly equipped to contribute to industry and academia at large. The proposed collaborative research with XRCC will not only contribute to the increased economic activity of the Canadian chemical industry but will positively impact our society, quality of life, health and environment.