What is refinery high temperature oil soluble corrosion inhibitor?

Refinery high temperature oil soluble corrosion inhibitor is a chemical additive added to the refinery system to reduce the corrosion rate of metal materials under high temperature and high pressure environment. This corrosion inhibitor can be dissolved in fuel oil or lubricating oil in oil refining, by forming a protective film on the metal surface or adsorption on the metal surface to achieve its effect of corrosion inhibition.

In the oil refining industry, due to high temperature, high pressure, acid, alkali, salt and other factors, metal materials are prone to corrosion, which will not only lead to damage to equipment and increase maintenance costs, but also may endanger the safety of personnel. Therefore, the use of high-temperature oil-soluble corrosion inhibitors in refineries can effectively reduce the corrosion rate of equipment, extend the service life of equipment, and improve production efficiency and economic benefits.

Refinery high-temperature oil soluble corrosion inhibitor role:

The high-temperature oil-soluble corrosion inhibitor in the refinery is a chemical additive added to the refinery system, whose main function is to reduce the corrosion rate of metal materials under high temperature and high pressure mixing, thereby extending the service life of the equipment.

Specifically, high-temperature oil-soluble corrosion inhibitors can form a protective film on the surface of the equipment, which can shield the metal surface and prevent the metal from reacting with harmful substances such as acids, alkalis and salts under high temperature and pressure. In addition, the additive can also increase the local free energy of the metal by adsorption on the metal surface, and inhibit the development of heterogeneous reactions.

In short, high-temperature oil-soluble corrosion inhibitors in refineries can reduce the rate of corrosion of equipment, and ultimately reduce the maintenance and replacement costs of equipment, improve production efficiency and economic benefits.

Principle of refinery high temperature oil soluble corrosion inhibitor:

Refinery high temperature oil soluble corrosion inhibitor is the principle of forming a protective film on the metal surface or adsorption on the metal surface to prevent metal and media (such as water, acid, alkali, salt, etc.) contact, slow the rate of metal corrosion.

These inhibitors have three main mechanisms of action:

1. Form a protective film

Corrosion inhibitors can be chemically bonded with oxides or other impurities on the metal surface to form a dense protective film. This layer of protective film can isolate the medium in the environment and prevent the metal surface from being eroded by corrosion.

2. Attach to the metal surface

Corrosion inhibitors can be adsorbed on the metal surface by electrostatic action, adsorption and other mechanisms, so that the interaction between corrosion inhibitor molecules and environmental medium molecules is reduced, and the rate of metal corrosion is slowed down.

3. Change environmental conditions

Corrosion inhibitors can also slow down the rate of metal corrosion by changing the chemical properties of the environmental medium, such as adjusting its pH, chelating ions, etc. This method is mainly used for corrosion inhibition of specific corrosive media, such as adding corrosion inhibitors to seawater, which can reduce the degree of corrosion of metals in seawater.
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