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Performance Comparison of Downflow and Upflow Reactors in Two-Phase Flow Systems

This study investigates the performance differences between Downflow Trickle Bed Reactors (TBR) and Upflow Packed Bubble Columns (PBC) under various conditions, focusing on the effects of fines, gas and liquid limitations, and unsteady state operations. Through experimental analysis and modeling, we assess flow distribution, pressure drop, and liquid holdup in TBRs. Additionally, we explore a complex reaction network aimed at enhancing the selectivity and productivity of a herbicide intermediate, while also evaluating viscosity and phase behavior of polymer solutions in supercritical solvents.

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Performance Comparison of Downflow and Upflow Reactors in Two-Phase Flow Systems

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  1. Outline • Comparison of Performance of Downflow (Trickle Bed Reactor-TBR) and Upflow (Packed Bubble Column-PBC) Two Phase Flow Reactors • Experimentation and Model Evaluation • Effect of Fines on the Performance of TBR and PBC under Gas and Liquid Limited Conditions • Experimental Investigation of Unsteady State Operation in TBR • Modeling and Simulation of Unsteady State Operation in TBR • Flow Distribution in TBR Under Steady and Unsteady State Conditions using CFDLIB of Los Alamos • Improvement in Pressure Drop and Liquid Holdup Prediction by Shear and Velocity Slip Correction • Investigation of a Complex Reaction Network for High Selectivity and Productivity of a Herbicide Intermediate • Evaluation of TBR models for a Liquid Limited Test Reaction • Viscosity and Phase Behavior of Polymer Solutions in Supercritical Solvents CREL

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