Abstract
The flow dynamics (tray hydraulics) are of key importance for the initial dynamic response of distillation columns. The most important parameters are the liquid holdup, the liquid hydraulic time constant, and the constant representing the effect of a change in vapor flow on liquid flow. In the paper we present methods for determining these parameters experimentally, and compare the results with estimates from available correlations such as the Francis Weir formula.
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More From: Dynamics and Control of Chemical Reactors, Distillation Columns and Batch Processes (DYCORD'95)
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