Abstract
A structured-packing column plays a crucial role in the acid pretreatment process for floating liquefied-natural-gas platforms. In columns, gas–liquid mass-transfer area directly affects the integral gas absorption performance. In this paper, we report an experimental investigation on the mass-transfer area in a pilot-scale column with Mellapak 250X structured packing divided by walls. Using the NaOH-Air test system, we compare the mass-transfer area between the present column and a column with regular structured packing under varying liquid loads, gas velocities, and ship movements. A surprising discovery was that adding walls into structured packing obviously increased the mass-transfer area, thereby converting ship motions from detrimental to beneficial.
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