Regarding the injection location of the hydrogenation corrosion inhibitor
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What are the advantages and disadvantages of injecting corrosion inhibitors at the outlet of the crude oil buffer tank versus at the high-pressure air cooler?
Scale inhibitors are generally injected into the crude oil stream, while corrosion inhibitors are usually mixed with water before injection
Before air cooling, corrosion inhibitors generally form a protective film on the outlet lines of the main stripping tower and the butane removal tower, thereby preventing or reducing the corrosion caused by wet hydrogen sulfide on elbows, pipelines, and air-cooling tube bundles
Have you mixed up scale inhibitors and corrosion inhibitors? The scale inhibitor to be injected at the outlet of the raw material tank should be mixed with diesel. Corrosion inhibitors are generally injected before high-pressure air cooling, and are referred to as high-pressure air cooling corrosion inhibitors. There are also fractional corrosion inhibitors added at the top of the hydrogen sulfide removal tower or the stabilizer tower. Corrosion inhibitors are generally prepared using deoxygenated water.