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Hydrogenation maintenance: How to clean high-pressure heat exchangers?

2009-02-12View Original

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Hydrogenation maintenance: How to clean high-pressure heat exchangers? Specifically, how to clean the shell side of the heat exchanger used for heat exchange with reactor effluents and hydrogen? Please help
Reply #22009-02-12
The process can be reconfigured so that a water tank uses a pump to ensure a certain circulation rate, with heated desalinated water being used for cleaning. Clean the oil while cleaning.
Reply #32009-02-13
You can hire a professional cleaning company to handle it.
Reply #42009-02-13
Heat exchanger manufacturers should provide instructions on how to clean them
Reply #52009-02-13
To prevent p-toluenesulfonic acid stress corrosion that may occur in the reaction section of austenitic stainless steel equipment during shutdown periods, it is necessary to consider carrying out neutralizing cleaning of the high-pressure heat exchangers in the reaction section when the plant is shut down for maintenance. Our company uses an aqueous solution containing 3% Na2CO3 and 0.3% NaNO3, with a required Cl- content of no more than 50 ppm.

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