Abstract
Structured packings in distillation columns present an opportunity for process optimization. Therefore, current design processes for columns with structured packings are evaluated with respect to their industrial applicability, and a power law equation is proposed for transferring HETP values of a reference system to a test system. A design process that includes CFD simulations is presented, and the CFD simulation setup is introduced. The validity of the simulation setup is examined with regard to the following mixtures: nitrogen/oxygen, chlorobenzene/ethylbenzene, and cyclohexane/n-heptane. Diffusion coefficients are varied in the simulation, and their influence on the HETP value is evaluated. The simulated HETP values are then compared with established mass transfer models and demonstrate a high level of agreement.
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