Abstract
This research paper introduces a numerical model describing the stripping and drying phase during steam pressure filtration treating water insoluble volatile pore liquids. The model is based on mechanical and thermodynamic equations derived from the theory of steam pressure filtration for aqueous pore liquids and from the steam distillation theory. One main input parameter is the pressure profile determining the state variables of the vapour mixture. This work is first to resolve the pressure profile across a filter cake during stripping and drying based on temperature measurements within the filter cake.The developed model describes the stripping kinetics and the temperature profile across the filter cake and furthermore reveals a complete removal of the volatile organic compounds from the filter cake. The findings are evaluated by the experimentally determined stripping and drying kinetics. Additionally, exemplary calculations of the temporally and spatially resolved model are shown in order to promote the process understanding.
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