(341b) Modeling Coupled Reactive Flow and Evaporation within a Multistage Reactor Conference: AIChE Annual MeetingYear: 2006Proceeding: 2006 AIChE Annual MeetingGroup: Catalysis and Reaction Engineering DivisionSession: Computational Fluid Dynamics in Chemical Reaction Engineering Time: Wednesday, November 15, 2006 - 8:53am-9:14am Authors: Bai, H., The Dow Chemical Company Chakraborty, D., The Dow Chemical Company Trauth, D., The Dow Chemical Company Li, G., Fluent Inc. Jain, A., Fluent Inc. Multi-stage reactors are routinely used in chemical plants. Traditionally, the design and scale-up of these reactors rely heavily on empirical correlations or expensive experiments. Computational Fluid Dynamics (CFD) has been widely accepted as an effective replacement or complementary tool to the conventional methods in reactors' design. Although CFD has become a routine tool in the chemical industry, when complicated physics are coupled, numeircal modeling is still very challenging. In this study, a numerical simulation of a two-stage acid reactor is presentated. Liquid acid spray and droplets' evaporation, complex chemical reactions among evaporated species and interactions between chemical reactions and turbulence are all carefully considered by using some advanced numerical submodels. The predicted flow field and product conversion are compared with the experimental data.