Liquid holdup and pressure drop in packed column with structured packing under offshore conditions

In this study, we propose liquid holdup and pressure drop models for a packed column with structured packing, under offshore conditions. To improve the model performance, we conducted experiments for an air-water system under various conditions (i.e., liquid load, gas load, and permanent tilt angle). We used a column with an inner diameter of 0.6 m and a packed height of 4 m, which was installed on a sloshing machine that enabled us to simulate offshore conditions, and corrected the key parameters of the model based on the experimental data obtained. The result showed that in offshore column design, the rolling motion can be regarded as permanent tilt, by extracting the tilt angle data from the rolling motion characteristics.