Corrosion of the heat exchanger used for reducing the temperature of crude oil in petrochemical constant and reduced pressure processes
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The primary bottom oil to reduced temperature 4 heat exchanger has the primary bottom oil as the fluid in the tube side, while the shell side contains the reduced temperature 4 fluid at a temperature of around 360 degrees. Due to corrosion by naphthenic acids at high temperatures, the anti-erosion plates and baffles of the tube bundle have been corroded and thinned out, with some of them having completely corroded away. Therefore, corrosion issues in this area need to be taken seriously.
Naphthenic acids at high temperatures can cause corrosion of the tube bundles, anti-scour plates, and baffle plates in the reducing heat exchangers for crude base oil, which affects the normal operation and safety of the equipment; this issue requires attention. .
The materials are well prepared. Could the teacher please explain the most appropriate approach for handling them?
Thank you for sharing. What to do about high pressure difference and packed bed clogging in the hydrodesulfurization tower for diesel and gasoline? https://bbs.hcbbs.com/thread-5669365-1-1.html (Source: Haichuan Chemical Industry Forum)