How to remove trimellitic acid blockages
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In our factory’s production process, the intermediate product is paraformaldehyde, which often causes blockages in pipelines and equipment. Could you please advise on methods for removing these blockages as well as techniques for making improvements to address this issue?
Pipelines generally require jacket water; as long as the temperature is above their melting point, they won’t get clogged! Use steam to clear it after it gets blocked!
The pipeline must be heated using jacket water or heat tracing; electric heat tracing is also an option. Generally, 75-degree hot water is used for heating. If the pipeline gets blocked, steam can be used to clear it. For shorter pipelines, fire can be used as a solution; this is for reference only
Triomethyleneglycol dissolves in water; LZ can be rinsed with hot water or heated using steam on the outer tube. The method to prevent clogging is to use heat tracing; steam or hot water can be used for this purpose. Triomethylenetetramine tends to polymerize at high concentrations, in acidic conditions, and at low temperatures, but the resulting polymer is unstable and decomposes when heated. So trimellitic acid blockages are relatively easy to clear, but with formaldehyde it’s a complete mess
It seems we need to take good care of the insulation on the raw material pipelines!