石油化工高等学校学报2025，Vol.38Issue(4)：1-9,9.DOI:10.12422/j.issn.1006-396X.2025.04.001
油品种类及其流量对REAC系统流动腐蚀风险的影响
The Influence of Oil Types and Their Flow Rates on the Flow Corrosion Risk of REAC Systems
摘要
Abstract
To address the corrosion failure issues in hydrogenation reaction effluent air cooler(REAC)systems,a typical process simulation model was constructed using the reverse order deduction method.This study investigated the influence mechanisms of different oil flow rates on the distribution of corrosive components within the system,ammonium salt crystallization temperature,and erosion risks.The results indicate that variations in oil flow rate do not significantly affect the aqueous distribution of corrosive components or increase the system's erosion risk.Additionally,the oil flow rate has minimal impact on the crystallization temperature of ammonium salts,meaning higher flow rates do not elevate the risk of salt formation.However,increasing the flow rate of vacuum gas oil(VGO)markedly reduces the corrosion factor(K),thereby lowering the overall corrosion risk.The VGO flow rate also has a pronounced influence on the aqueous NH4HS concentration at the air cooler outlet,whereas the effect of naphtha flow rate differs from that of diesel and VGO.Notably,raising the flow rates of diesel and naphtha increases the system pH,while increasing VGO flow rate decreases it.To mitigate corrosion risks,it is recommended to moderately increase the VGO content during crude oil processing while simultaneously boosting either the diesel content or injection water volume.关键词
加氢反应流出物空冷器/铵盐结晶/流动腐蚀/Aspen Plus/数值模拟Key words
Hydrogenation reaction effluent air cooler/Ammonium salt crystallization/Flow corrosion/Aspen Plus/Numerical simulation分类
能源科技引用本文复制引用
闻华宇,洪叶江,李锐,刘骁飞..油品种类及其流量对REAC系统流动腐蚀风险的影响[J].石油化工高等学校学报,2025,38(4):1-9,9.基金项目
国家重点研发计划项目(.2023YFC3010501) （.2023YFC3010501）
浙江省重点研发计划项目(2024C03122). （2024C03122）
