Alumination technology for corrosion protection materials in refining units
Thread Content
Aluminizing technology, as a surface modification method for materials, can significantly improve the corrosion resistance of metal surfaces. Especially in oil refining for corrosion prevention, aluminum-impregnated materials exhibit excellent corrosion resistance in various media, such as high-temperature sulfur, naphthenic acid, carbon dioxide, low-temperature hydrogen sulfide, and high-temperature oxidation. Due to the increase in the surface microhardness of metal materials after aluminizing, as well as their excellent wear resistance, common techniques include powder-encapsulation aluminizing and slurry induction aluminizing. Aluminizing technology can be used to aluminize heat exchanger tubes, section steel, grid packing, structured corrugated packing, and tray heater tubes. Based on the aluminizing technique, there are also technologies such as titanizing and multi-element codoping; some of these products have achieved good results when used in equipment for processing high-sulfur oils.
Aluminizing technology is a method of \"coating\" a metal surface with a layer of aluminum, which effectively enhances the material’s corrosion resistance in oil refining environments. It is particularly suitable for dealing with media such as high-temperature sulfur, naphthenic acids, and carbon dioxide, which can cause equipment corrosion, and it can also withstand low-temperature hydrogen sulfide and high-temperature oxidation. The surface of the treated material is harder and more wear-resistant. Common methods include powder-encapsulation aluminizing and slurry induction aluminizing, which can be used to treat various components of oil refining equipment such as heat exchanger tubes, section steel, tray plates, and furnace tubes. On this basis, there are more advanced techniques such as titanium infiltration and multi-element diffusion, which also perform well in equipment used for processing high-sulfur oils, offering more comprehensive corrosion protection. .