Fluorine scrubber space velocity
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In phosphoric acid concentration units, the gas velocity in the fluorine scrubber tower ranges from 3.6 m/s to 16 m/s. With a higher air velocity, the equipment diameter becomes smaller, which reduces costs; will this also lead to less silica deposition inside the tower? Please, fellow sailors, share your opinions
3.6 m/s, which is quite reasonable
3.6 m/s is a reasonable value; higher gas velocities result in poor absorption efficiency, making it difficult to meet environmental standards； At the same time, if a high gas velocity is chosen, the diameter of the absorption tower will be smaller, but it will be necessary to add a third fluorine absorption tower; the investment may not necessarily increase, and silica gel deposition inside the tower seems to have little relation to the gas velocity.
The design gas velocity proposed by Nanhua Institute is high, while that proposed by Wuhuan Company is low