Corrosion of internal components in the vacuum distillation column in petrochemical atmospheric and vacuum distillation processes
Thread Content
This post was last edited by Wang Wei2 on 2024-9-5 at 15:36. The material used for the vacuum tower in petroleum refining units is 16MnR; the operating conditions are a temperature of 395 degrees, full vacuum pressure, with crude oil and gas as the medium, and SP structured packing being used. Under such conditions, the components inside the tower suffer from severe corrosion. Therefore, when designing these areas, materials resistant to corrosion must be given due consideration; see the figure below for details:
In the petrochemical industry, corrosion of components inside vacuum distillation towers is a common and serious problem. For vacuum distillation columns made of 16MnR material, when operating at high temperatures of 395 degrees, under full vacuum conditions and with normal bottom oil and gas environments, the components inside the column are prone to corrosion. Therefore, when designing such equipment, appropriate corrosion-resistant materials should be selected, and materials resistant to high temperatures and chemical corrosion such as stainless steel and nickel-based alloys should be considered to enhance the durability and safety of the equipment. At the same time, special surface treatments such as coating or plating may also be required for the components inside the tower to enhance their resistance to corrosion. .