Liquid phase axial mixing in distillation column packed with structured packing: Effect on column performance

Rejl, F.J.; Čmelíková, Tereza; Valenz, L.; Haidl, Jan; Moucha, T.; Kracík, Tomáš

doi:10.1016/j.cherd.2019.05.030

Cited by 5 publications

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“…The initial design with the equilibrium model for the DDC shows that the calculated diameter for the first part of the column is 1.23 m, while the second part is 1.78 m. Of course, the obtained values for the diameter of each part are used as the first estimate in the non-equilibrium model. Consequently, the new values of diameters are corrected and get closer to the real industrial values using the nonequilibrium model[31][32][33][34]. The mechanical specifications of the DDC for the first and second parts of the column are presented in rows 4-10 and 4-8 of Tab.…”

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Simulation of a Depropanizer Distillation Column and Validation of Results by Industrial Data

2022

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A depropanizer distillation column (DDC) that is widely used in oil refineries, was simulated by Aspen Plus using both equilibrium and non‐equilibrium models. The purpose of this simulation was selecting the most appropriate model to accurately predict the separation process in the DDC. Considering the temperature profile and mole fraction diagrams of the desired product (propane) in the distillation column, it was found that the equilibrium and non‐equilibrium models differ significantly in predicting the column behavior. Comparing the industrial data of the DDC with the results of the two mentioned approaches, it can be concluded that the non‐equilibrium model with the mass transfer coefficient from Chen and Chuang (1993) can simulate the DDC accurately.

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confidence: 99%