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Home » Industries » Petrochemical

Petrochemical

Author: Site Editor     Publish Time: 2025-02-22      Origin: Site

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Anti-corrosion coating: Petrochemical pipelines often transport corrosive media, such as crude oil, sour natural gas, acid and alkali solutions, etc. Spraying corrosion-resistant metal coatings (such as nickel-based alloys, stainless steel coatings) or ceramic coatings (such as alumina and zirconia coatings) on the inner wall of pipelines through thermal spraying technology can effectively isolate the contact between pipelines and corrosive media, prevent pipeline corrosion and perforation, and prolong the service life of pipelines. For some pipes in harsh outdoor environments, spraying anti-corrosion coatings on their outer walls can also resist atmospheric corrosion and soil corrosion.
Drag reduction coating: In order to reduce the transportation resistance of oil and natural gas in the pipeline and improve the transportation efficiency, thermal spraying technology can be used to spray coatings with low surface energy on the inner wall of the pipeline, such as polytetrafluoroethylene and other polymer coatings. These coatings have a smooth surface that reduces friction between the fluid and the pipe wall, reducing drag loss along the way and saving energy consumption during transportation.
High temperature resistant coating: In petrochemical production, many reactions need to be carried out under high temperature conditions, and the inner walls of the reactor and vessel need to withstand high temperatures. Thermal spraying ceramic coating or cermet coating, such as silicon carbide, boron nitride and other coatings, has good high temperature resistance and thermal stability, which can protect the matrix material of the reactor and vessel from high temperature erosion, prevent the material from deformation and oxidation due to high temperature, and ensure the safe and stable operation of the equipment in the high temperature environment.
Wear-resistant coating: The stirrer, deflector and other parts in the reactor, as well as the material conveying device in the container, will rub and collide with the material during the working process, which is easy to cause wear. The use of thermal spraying technology to spray wear-resistant tungsten carbide, chromium-based alloy and other coatings on the surface of these parts can improve the wear resistance of the parts, reduce wear, extend the service life of the parts, and reduce the maintenance cost and downtime of the equipment.
Sealing surface coating: The sealing surface of pumps and valves is required to have good wear resistance, corrosion resistance and sealing to ensure the normal operation of the equipment and prevent media leakage. Thermal spraying technology can spray cemented carbide coating, ceramic coating, etc. on the sealing surface, which has high hardness, low coefficient of friction and good chemical stability, which can improve the sealing performance and service life of the sealing surface, reduce the risk of leakage, and improve the efficiency and reliability of pumps and valves.
Impeller coating: The impeller of the pump is susceptible to the dual effects of corrosion and wear when conveying corrosive and abrasive media. Through thermal spraying of corrosion-resistant and wear-resistant coatings, such as nickel-chromium-molybdenum alloy coating, tungsten carbide coating, etc., the impeller can be protected from the erosion and wear of the medium, the shape and dimensional accuracy of the impeller can be maintained, the head and efficiency of the pump can be improved, and the service life of the pump can be prolonged.
Anti-fouling coating: During the operation of the heat exchanger, the heat exchange surface is easy to scale, which affects the heat exchange efficiency. Thermal spraying technology can be used to spray anti-fouling coatings, such as special metal oxide coatings or polymer coatings, on the surface of the heat exchanger tubes of heat exchangers. These coatings can change the physical and chemical properties of the heat exchange surface, reduce the adhesion of dirt on the surface, make it difficult for dirt to deposit and grow on the surface, thereby reducing the phenomenon of scaling, improving the heat exchange efficiency of the heat exchanger, and reducing energy consumption.


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