How to select the injection point for high-temperature corrosion inhibitors
Thread Content
High-temperature corrosion inhibitor injection point: This device, normal pressure section, reduced pressure section, reduced pressure line 3. Why isn’t the high-temperature corrosion inhibitor injected before entering the normal pressure furnace? And why isn’t it injected before entering the normal pressure tower? Normal pressure line 3 – why isn’t it injected through the vaporized oil line?
High-temperature corrosion inhibitors are primarily used to prevent the corrosion caused by naphthenic acids and sulfides in high-temperature areas; they seem to become effective only when the temperature exceeds a certain threshold
How to determine whether it is necessary to add a high-temperature corrosion inhibitor? All of our unit towers are made of 316L composite plates.
The main considerations are the temperature range of 280–410 degrees, during which the corrosive effect of naphthenic acids is strong, as well as the sulfur content and flow rate