Mass Transfer Limitations and Reagent Conversion

Due to the important ratio between the reactor length and the inter-electrode distance, plate and channel microreactors behave like plug flow reactors. The maximum possible conversion is reached if the reaction is under mass transport control on the entire electrode surface. The combination of the local diffusion-limited 

The dimensionless number appearing in the exponential factor in Equation (17.25) is the number of transfer units (NTU), as it compares a characteristic mass transfer flux, kra i, with the overall flux Q  

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