How to clean scale from shell-and-tube synthesis towers
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After several years of operation, the shell-and-tube synthesis tower needs to have its scale removed. Could experts please advise on how to prepare the descaling agent and how to carry out the process?
It is best to hire a professional cleaning company for the cleaning; chemical descaling may be the only option, as physical methods will not work.
Check for scale formation; it is necessary to examine the difference between the saturated steam temperature corresponding to the drum pressure and the temperature at the outlet of the synthesis tower. If this difference is large, it indicates that scale has formed on the outer wall of the tubes, reducing the heat exchange efficiency, and thus cleaning is required.