双相不锈钢在加氢处理反应器流出物空冷器（REAC）中的应用

[中文适用范围]： 本报告讨论了API调查双相不锈钢（DSS）在石油炼油厂加氢处理装置反应器流出物系统中的应用结果，包括反应器流出物空气冷却器（REAC）及其进出口管道。还包括来自文献和作者经验的附加信息。 [外文原描述]： Provides guidance to engineering and plant personnel on equipment and piping design, material selection, fabrication, operation, and inspection practices to manage corrosion and fouling in the wet sections of hydroprocessing reactor effluent systems. The reactor effluent system includes the equipment and piping subject to ammonium salting, NH4HS corrosion, and associated fouling. This system usually begins at the last feed/effluent exchanger or first water injection point and continues through the cold high-pressure separator (1, 2, and 3 separator designs) or cold high- and low-pressure separators (4 and 5 separator designs). The reactor effluent system specifically excludes the stripper, fractionator, and final separation sections. However, guidance in this document may be applicable to ammonium salt corrosion mitigation in those areas, as well. The majority of these systems have an air cooler; however, some systems utilize only shell and tube heat exchangers. Reactor effluent system