Interaction between Hydrodynamics and Chemical Reaction Rate in Vertical Gas-Slurry Cocurrent Turbulent Tube Reactor. I. Performance Indicators.

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  • Interaction between Hydrodynamics and Chemical Reaction Rate in Vertical Gas-Slurry Cocurrent Turbulent Tube Reactor:1.Performance Indicators

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Abstract

To analyze the performance of a vertical tube reactor involving a gas-slurry reacting system in dispersed bubble flow and upflow, downflow, and upflow-downflow (alternating) configurations, several performance indicators are defined and expressed in terms of integral equations. A local effectiveness factor associated with the efficiency for gas-slurry mass transfer, conversion of the liquid reactant, the local unconverted mass fraction of the gas phase, and the pressure drop are taken as performance indicators. Bounding criteria for diffusion-controlled and chemical reaction-controlled regimes are established, and their transitions along the reactor are also discussed. A generic heterogeneous catalytic hydrogenation, exemplified by the single reaction A(l) + H2(g) → B(l), is taken as a suitable reference system.

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