Why is a packed tower used instead of a plate tower in liquefied gas desulfurization towers?
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Our company’s purification units are primarily responsible for removing hydrogen sulfide from dry gas, as well as for desulfurization and dewaxing of liquefied gas. Float valve towers are used for dry gas desulfurization, whereas packed towers are used for liquefied gas desulfurization. Why is this? What are the main differences between the two?
LPG is in a liquid phase inside the equipment, so a tray-type design cannot be used. For dry gas, either tray towers or packed columns can be used; packed columns yield better results, but the column is prone to clogging if the medium is dirty. The devices built these days generally use packed towers, right?
Regarding this question, do you want to know what the main differences between the two types of towers are? Relatively speaking, the processing capacity of packed towers is lower, but their separation efficiency is much higher than that of plate towers. For liquefied gas, the volume to be processed is relatively small, yet the requirements for separation are high!