pH control range of acidic water in hydrogenation unit
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This post was last edited by sdwfsgyykai on 2018-8-13 08:27. What should be the pH level of the acidic water at the tops of the stripping tower and the butane removal tower in the hydrocracking unit’s distillation system? Too high or too low a pH level can cause corrosion; but what exactly is the appropriate pH range? Has anyone discussed this in detail?
This post was last edited by qugd on 2018-8-13 09:54. The acidity of acidic water is adjusted by controlling the amount of ammonia added, and the specific range of control values is determined based on the process operating conditions. You can check the operation manual for the process.
What is the typical pH level of acidic water that can lead to corrosion?
Corrosion is a complex physicochemical process that is related to the material being corroded, the composition of the corrosive medium, temperature, anti-corrosion measures, and operating conditions. pH value is just one factor, and this factor is associated with other corrosion factors. It’s impossible to answer such a question simply. You can conduct simulated corrosion coupon tests based on the conditions of the medium and the materials.