What are the causes of fouling in plate heat exchangers in MDEA desulfurization? and processing
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I would like to ask everyone: what are the causes and mechanisms of scaling in plate heat exchangers used in MDEA desulfurization? How is it cleaned, and what chemical agents are generally used? Online or take it off to the repair shop for cleaning?
We experience a similar phenomenon here; it’s not necessarily due to scaling, but rather to impurities in the solvent blocking some of the flow channels in the plate exchanger. We plan to try out the acid washing cycle during the maintenance work to see how it works.
Have you finished cleaning? Is it online or taken apart for cleaning? How is it working?
It hasn’t been repaired yet... I just have this idea!
So things are going well on your end, right? At least there are no downtime issues
The rich liquid produced by alcohol-ammonia desulfurization flows through the tubes in the plate heat exchanger; sometimes deposits form, but it’s not scaling. When this happens, we usually remove the heat exchanger, use a wire to clear the deposits, and then soak it in a low-concentration acid. Scaling is impossible; the water flows through the shell type
The rich liquid produced by alcohol-ammonia desulfurization flows through the tubes in the plate heat exchanger; sometimes deposits form, but it’s not scaling. When this happens, we usually remove the heat exchanger, use a wire to clear the deposits, and then soak it in a low-concentration acid. Scaling is impossible; the water flows through the shell type
Disassemble the plate for cleaning, rinse with a water gun