What is the basis for calculating the height of the ceramic ring packing in the foam trap layer of the sulfuric acid dry absorption concentrated acid tower and that of the acid separation tank?
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Typically, in sulfuric acid dry absorption concentrator towers, the surface of the ceramic ring packing is equipped with a thin foam-trapping layer of packing; however, there are varying opinions regarding the height of this packing layer above the acid separation tank, and no relevant design standards or documentation could be found. Is there any authoritative information available regarding the design height and packing method of the foam-trapping layer inside towers? Also, which is better – regular packing or hetero-nipple ring packing – at present?
1. The upper part of the ceramic ring should be at a distance of not less than 50 mm from the bottom of the acid separation groove. 2. Regular packing is not suitable for use in dry towers; it should be used in absorption towers in conjunction with the appropriate packing height. Regular packing is also highly regarded for its excellent distribution effect, but it is expensive.
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The height of the foam capture layer still needs to be determined based on one’s own gas flow rate and the degree of acid foam entrainment; there is no exact figure that can tell you how high it should be set； Compared to the adequacy of gas-liquid distribution and contact as well as the reduction of resistance, regular rings are certainly better than asymmetric saddle rings, but their price is indeed a bit high