Chlorine corrosion
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We process a type of oil with a chloride ion content of 1,000 ppm, and the equipment suffers severe corrosion, especially in the distillation towers and coolers. Could anyone recommend an anti-corrosive material? Thank you!
This post was last edited by qugd on 2022-5-25 at 11:33. Oil products are generally hydrocarbons or their derivatives, and since they contain a high concentration of chloride ions, salts containing chloride ions must have been added. To address the corrosion caused by chloride ions, using corrosion-resistant materials is a poor solution; the better approach is to find oil processing methods that do not involve the use of chlorides. Or other anionic salts with low corrosivity can be used as substitutes for chlorides. If producing chlorinated paraffins, containers and equipment made of enamel can be used entirely, as the production of chlorinated paraffins generally does not require very high pressures or temperatures.
Multi-frequency AC units made of corrosion-resistant materials! Titanium-nickel equipment!
If it is only chloride corrosion, 316L will meet the requirements
I’m not sure what kind of oil it is; could you please advise? What are the temperature and pressure as well? It’s easier to judge this way. If we are only talking about chloride corrosion, polyaniline can be recommended as a corrosion inhibitor, as it offers excellent resistance to chlorides.
Where are the people? Why run away just after leaving a question?
The issues raised should be covered comprehensively. Factors such as the medium, temperature, and pressure during the production process play a role; harmful media can cause corrosion of equipment, and the material composition of the equipment is also important. By taking these factors into account, it is possible to analyze corrosion issues related to equipment more effectively and come up with practical solutions.
Titanium alloy. Nickel-based alloys, Hastelloy and such
This post was last edited by qldch2306 on 2022-5-29 at 13:22. The complete set of operating conditions is not specified; hence, no solution exists. Low and high temperatures have a significant impact on corrosion. Is it possible to use a non-metallic lining? Is there a negative pressure operating condition? . . .
This post was last edited by Wang Genrong on 2022-7-28 at 14:43. You can try using 711 inorganic anti-corrosion coating.