On the selection of packing for gas separation towers
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It’s a 10-meter-high gas separation tower used for separating nitrogen from liquefied gases; its diameter is DN200. We’d like to select a packing material with high separation efficiency. Apparently, Pall rings, perforated plate corrugated structured packing, and wire mesh corrugated structured packing are the three most commonly used types. But what are the specific advantages and disadvantages of each of these three types? Factors such as specific surface area, porosity, gas resistance, bulk density, and susceptibility to wall flow. Bauer rings are bulk packing materials that can be simply poured into the tower; structured packing, on the other hand, needs to be arranged at 90-degree angles to improve separation efficiency. I seek guidance from the experts.
Last year, I was exactly working on this area; not many people in China work in this field. First, determine the process: whether it is a dual-high-pressure process or a dual-low-pressure process. Is it a single tower or multiple towers? Has dehydrogenation occurred? What is the separation efficiency? What is the composition of imports and exports? What is the tower pressure? PS: Half of the domestic installations are carried out by Company S.