The purpose of this document is to provide the background calculations outlining how the adsorption parameters were calculated, and details on the factorial analysis.
ADSORPTION CALCULATIONSModeling an adsorption system in HYSYS presents interesting complexities. To begin, there are interphase transport issues, uncertainty in equilibrium effects, and uncertainty in the effect that each component may play upon one another during multi-component adsorption. These are only a few of the issues, without even considering the dynamic aspects of the process.For this reason, much of the background rigor was simplified and calculated outside of HYSYS, with the results of these analyses being plugged into simple HYSYS system models made to represent the overall steady-state adsorption-desorption system.In the figure below, the HYSYS Component Splitter represents the steady-state adsorption cycle, and is used to separate the air stream from the VOC stream. The concentrated VOC stream is then sent to a Mixer model which combines steam to the concentrated VOC stream. This simulates the anticipated desorption stream. A HYSYS Condenser model is then used to remove the excess water from the desorption stream. This
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