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The CREC Riser Simulator Reactor is a novel mini-Riser unit. This study considers a laminar-turbulent CFD (Computational Fluid Dynamics) simulation using the COMSOL Multiphysics® module to establish gas-solid mixing patterns. The proposed CFD calculations are verified using both experimental data (<10–15% difference) and mass balance errors (<0.1%). Results show the significant detrimental effect...
Data analysis from downers requires a comprehensive methodology in order to set the data baseline. This analysis can be accomplished by using a mathematical approach based on solid mass balances and an iterative calculation. Each signal baseline is defined asX+n∙σx, where X is the signal average; σx is the signal standard deviation; and “n” is a baseline parameter. By using this methodology, the noise...
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