Partition rings created base on increase the packings specific area to strength the transfer efficiency.Many other shape rings base on these also can be made.Generally speaking, due to its big size, could be used only by whole stacking,now it used for the bottom tower holding distribution layer base on huddle packings.Φ80-200mm could be the holding materials, when the void ratio more than 60%,it should be the whole number.
Chemical packing
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