Hydraulic Calculations for Cross-channeled Packings in Distillation Unit Based on a Physical Model

Modifications to Structured Packings to Increase Their Capacity

“…The physical properties are displayed in Table 1. The test rig has been described in detail by Ranke et al [6]. Briefly, the system works at 1.1bar and a controlled ambient temperature so allowing adiabatic tests.…”

“…There are several mechanistic pressure drop models [6,7,8] in the literature, describing the different contributions to the total pressure drop. All of them need parameters to fit the calculations to the measured pressure drop especially above the loading region -this leads to a striking increase in pressure drop and hold up.…”

Review of design correlations for CO2 absorption into MEA using structured packings

“…The flooding phenomenon in single vertical tubes was based on the Wallis equation (Wallis, 1969), and the pressure drop equation involves two fitting parameters which are functions of the specific vapor and liquid flow profiles within the column. Ranke et al (2000) developed a physically based model to describe hydraulic parameters such as pressure drop, film thickness, and radial liquid distribution for the loading region up to the flooding point. The correlations take into account the interaction between gas and liquid on a completely wetted packing surface and the geometrical data of the respective packing.…”