高流速强湍流下关键因素对环烷酸腐蚀的影响行为研究

doi:10.3901/JME.2023.16.204

机械工程学报 ›› 2023, Vol. 59 ›› Issue (16): 204-212.doi: 10.3901/JME.2023.16.204

扫码分享

高流速强湍流下关键因素对环烷酸腐蚀的影响行为研究

饶思贤^1,2, 华晓春¹, 赵新生¹, 郭祥钦¹, 赵丽¹, 王孝义¹

1. 安徽工业大学机械工程学院马鞍山 243032;
2. 合肥通用机械研究院国家压力容器与管道安全工程技术中心合肥 230031

收稿日期:2022-08-28 修回日期:2022-12-22 出版日期:2023-08-20 发布日期:2023-11-15
作者简介:饶思贤,男,1978年出生,博士,教授。主要研究方向为机械装备的腐蚀与失效。E-mail:snowdrio@126.com
基金资助:
国家科技部国家高技术研究发展计划(2012AA040103);安徽省科技厅自然科学基金面上(1908085ME148);安徽省教育厅自然科学重大研究(KJ2016SD09)资助项目。

Influence of the Key Factors of Naphthenic Acid Corrosion under High Flow Rate and Strong Turbulence

RAO Sixian^1,2, HUA Xiaochun¹, ZHAO Xinsheng¹, GUO Xiangqin¹, ZHAO Li¹, WANG Xiaoyi¹

1. School of Mechanical Engineering, Anhui University of Technology, Ma'anshan 243032;
2. National Engineering Technical Research Center on PVP Safety, Hefei General Machinery Research Institute, Hefei 230031

Received:2022-08-28 Revised:2022-12-22 Online:2023-08-20 Published:2023-11-15

摘要/Abstract

摘要： 加工劣质高酸原油时炼油装置中存在较严重的环烷酸腐蚀,为保障炼油装置的安全性需要明确关键影响因素对环烷酸腐蚀的影响规律,从而实现准确的腐蚀预测或寿命评估。针对温度、活性硫化物含量、流速、冲刷角、湍流强度等关键因素对环烷酸腐蚀影响规律进行研究,确定腐蚀速率与温度之间的量化关系;引入硫化物含量对环烷酸腐蚀速率的等温线评价;明确环烷酸腐蚀存在由0°冲刷角下均匀腐蚀向高冲刷角下局部点蚀的转化,在0°冲刷角下流速可明显提高环烷酸腐蚀速率,但不改变均匀腐蚀形态,当冲刷角达到15°时即可出现点蚀,当冲刷角达到90°时,环烷酸腐蚀转化为点蚀为主,且点蚀最大腐蚀深度与局部湍流强度密切相关,高湍流强度下点蚀更为严重。

关键词: 环烷酸腐蚀, 硫化物含量, 流速, 冲刷角, 湍流强度

Abstract: Serious naphthenic acid corrosion existed during inferior high acid crude oil refining. The influencing rules of the key factors on naphthenic acid corrosion should be confirmed to achieve the goal of precise corrosion predication or lifetime assessment to ensure the safety of crude oil refining equipments. The influence of key factors such as temperature, content of active sulfides, flow rate, flushing angle and turbulence intensity on naphthenic acid corrosion is studied, the relationship between temperature and corrosion rate is confirmed and the isothermal assessment of active sulfides on napthenic acid corrosion is introduced; the transformation from uniform corrosion at 0° flushing angle to pitting corrosion at high flushing angles is clarified, the increase of flow rate could accelerate naphthenic acid corrosion but could not change its uniform corrosion mode, when the flushing angle is increased to 15°, small corrosion pits formed, when the flushing angle is increased to 90°, naphthenic acid corrosion transformed to pitting corrosion, the maximum corrosion depth of corrosion pits is closely related with local turbulence intensity, naphthenic acid pitting corrosion became more serious under high turbulence intensity.

Key words: naphthenic acid corrosion, content of active sulfides, flow rate, flushing angle, turbulence intensity

中图分类号:

TG172

饶思贤, 华晓春, 赵新生, 郭祥钦, 赵丽, 王孝义. 高流速强湍流下关键因素对环烷酸腐蚀的影响行为研究[J]. 机械工程学报, 2023, 59(16): 204-212.

RAO Sixian, HUA Xiaochun, ZHAO Xinsheng, GUO Xiangqin, ZHAO Li, WANG Xiaoyi. Influence of the Key Factors of Naphthenic Acid Corrosion under High Flow Rate and Strong Turbulence[J]. Journal of Mechanical Engineering, 2023, 59(16): 204-212.

参考文献

[1] SHARIFI-ASL S, LIANG A, COOKE D, et al.High-temperature sulfidic corrosion of carbon steel in model oil/sulfur compound blends[C]//NACE Corrosion,New Orleans,Louisiana,USA:Corrosion 2017,March26,2017:4296-4307.
[2] 吕运容.石化装置高温环烷酸流动腐蚀行为与工程防护方法[D].杭州:浙江大学,2018.LÜYunrong. High temperature naphthenic acid flow-induced corrosion behavior and preventive measures of petrochemical unit[D]. Hangzhou:Zhejiang University,2018.
[3] 段永锋,崔新安.高温环烷酸腐蚀研究的新进展[J].全面腐蚀控制,2015,29(10):61-66.DUAN Yongfeng, CUI Xinan. New progress and overview on naphthenic acid corrosion in refining units[J].Total Corrosion Control,2015,29(10):61-66.
[4] MERIEM B M,BOU S B,NASSER M B G,et al.Numerical study of elbow corrosion in the presence of sodium chloride,calcium chloride,naphthenic acids,and sulfur in crude oil[J]. Journal of Petroleum Science and Engineering,2021,198:108124.
[5] 张肖飞,马涛,华晓春,等.高流速强湍流下低碳钢局部环烷酸腐蚀行为[J].材料导报,2021,35(14):14136-14141.ZHANG Xiaofei, MA Tao, HUA Xiaochun, et al.Localized naphthenic acid corrosion of carbon steel under high flow rate and strong turbulence[J]. Materials Reports,2021,35(14):14136-14141.
[6] AZZURA I,AZLIZUL A R,NORMAYATI N,et al.Identifying naphthenic acid corrosion mechanism on heat exchanger unit by computational fluid dynamic simulation[J]. Materials Today:Proceedings, 2020,29(Pt1):82-87.
[7] 陈碧凤,杨启明.常减压设备环烷酸腐蚀分析[J].腐蚀科学与防护技术,2007(1):74-76.CHEN Bifeng, YANG Qiming. Kinetics analysis of naphthenic acid corrosion of alloy steels for atmospheric and vacuum equipment[J]. Corrosion Science and Protection Technology,2007(1):74-76.
[8] 梁春雷,陈学东,艾志斌,等.环烷酸腐蚀机理及其影响因素研究综述[J].压力容器,2008(5):30-36.LIANG Chunlei,CHEN Xuedong,AI Zhibin,et al.Overview of the mechanism of naphthenic acid corrosion and its influencing factors[J]. Pressure Vessel Technology,2008(5):30-36.
[9] FERNANDA H,ANA C A,ALYSSON N D,et al.Evaluation of naphthenic acidity number and temperature on the corrosion behavior of stainless steels by using electrochemical noise technique[J]. Electrochimica Acta,2014,124:206-210.
[10] BHARAT S R,DONG-WOO C,KANGHEE C,et al.Total acid number(TAN)reduction of high acidic crude oil by catalytic esterification of naphthenic acids in fixed-bed continuous flow reactor[J]. Fuel,2018,231:271-280.
[11] QU D R,ZHENG Y G, JING H M,et al. High temperature naphthenic acid corrosion and sulphidic corrosion of Q235 and 5Cr1/2Mo steels in synthetic refining media[J]. Corrosion Science, 2005, 48(8):1960-1985.
[12] TEBBALS, KANE R D. Review of critical factors affecting crude corrosivity[C]//National Association of Corrosion Engineers,Mar 24-29,1996,Denver,CO(United States):1996:6615.
[13] QI W,MUYANG A,WEN S,et al. Study on corrosion mechanism and its influencing factors of a short distance intermittent crude oil transmission and distribution pipeline[J]. Engineering Failure Analysis,2020,118:104892.
[14] 代彦霞,王印培,郑文炳,等.铬钼钢的高温环烷酸腐蚀行为研究[J].化工机械,2010,37(4):401-404.DAI Yanxia,WANG Yinpei,ZHENG Wenbing,et al.Study on high temperature naphthenic acid corrosion behavior of chromium molybdenum steel[J]. Chemical Engineering&Machinery,2010,37(4):401-404.
[15] ZHANG Xiaofei,MA Tao,HUA Xiaochun,et al. Flow accelerated naphthenic acid corrosion during high acid crude oil refining[J]. Engineering Failure Analysis,2020,117:104802.
[16] PAULO P A, VANESSA F C L. An overview of naphthenic acid corrosion in a vacuum distillation plant[J].Engineering Failure Analysis,2011,18(5):1403-1406.
[17] WU Xinqiang,JING Heming,ZHENG Yugui,et al.Erosio-corrosion of various oil-refining materials in naphthenic acid[J]. Wear,2004,256(1-2):133-144.
[18] 刘句.高温高流速下环烷酸腐蚀模型构建[D].马鞍山:安徽工业大学,2017.LIU Ju. Construction model of naphthenic acid corrosion under high temperature and high flow rate[D].Ma'anshan:Anhui University of Technology,2017.
[19] JISHENG T,LIDA W,WEN S,et al. Failure analysis of steam jet pump at top of crude oil vacuum distillation tower[J]. Engineering Failure Analysis,2019,103:9-19.
[20] RAMESHK M,SOLTANIEH M,MASOUDPANAH S M.Effects of flow velocity and impact angle on erosion-corrosion of an API-5L X65 steel coated by plasma nitriding of hard chromium underlayer[J]. Journal of Materials Research and Technology,2020,9(5):10054-10061.
[21] 江克,杨铁成,陈学东,等.高温高流速环烷酸冲刷腐蚀流场数值模拟研究[J].压力容器,2010,27(10):1-7.JIANG Ke,YANG Tiecheng,CHEN Xuedong,et al.Numerical simulation of naphthenic acid erosioncorrosion in high-temperature and fast-flow environments[J]. Pressure Vessel Technology, 2010,27(10):1-7.
[22] 唐丽丽.高硫原油加工过程硫化物转化及风险控制技术研究[D].青岛:中国石油大学(华东),2013.TANG Lili. Research on transformation of sulfides and risk control technology in high-sulfur crude oil processing[D]. Qingdao:China University of Petroleum(East China),2013.
[23] MADJID M,BENYEBKA B,NOUREDDINE B. The effect of crude oil in the pipeline corrosion by the naphthenic acid and the sulfur:A numerical approach[J].Journal of Petroleum Science and Engineering,2017,158:672-679.
[24] BRAVO-MÉNDEZ J,GONZÁLEZ-VELÁZQUEZ J L,DOMÍNGUEZ-AGUILAR M A,et al. High-temperature corrosion of a UNS K03006 steel pipe in a crude oil vacuum residue distillation unit[J]. Engineering Failure Analysis,2018,92:149-162.
[25] YEPEZ O. Influence of different sulfur compounds on corrosion due to naphthenic acid[J]. Fuel,2005,84(1):97-104.
[26] 胡洋,程学群,王省田,等.流速和硫含量对原油中环烷酸腐蚀性的影响[J].石油学报(石油加工),2010,26(6):889-893.HU Yang,CHENG Xuequn,WANG Shengtian,et al.Effect of velocity and sulfur content of crude oil on the corrosion behavior of naphthenic acid[J]. Acta Petrolei Sinica(Petroleum Processing Section), 2010, 26(6):889-893.
[27] 吕运容,陈学东,陈志平,等.机械设备环烷酸流动腐蚀作用机制研究[J].流体机械,2018,46(9):1-6,37.LÜYunrong,CHEN Xuedong,CHEN Zhiping,et al.Research on the mechanism of naphthenic acid flow-induced corrosion in petrochemical equipment[J].Fluid Machinery,2018,46(9):1-6,37.
[28] KE J, CHEN X, YANG T. Experiment study of high-temperature and high-flow rate naphthenic acid corrosion[C]//Materials and Fabrication,Parts A and B,July 17-21,2011 Baltimore,Maryland:ASME,2011:403-1409.
[29] JAUSEAU N. Multiphase flow effects on naphthenic acid corrosion of carbon steel[D]. State of Ohio:Ohio University,2012.
[30] PENG J, WINSTON R, GHEORGHE B. Hightemperature corrosion by carboxylic acids and sulfidation under refinery conditions-mechanism, model, and simulation[J]. Industrial and Engineering Chemistry Research,2018,57(12):4329-4339.

高流速强湍流下关键因素对环烷酸腐蚀的影响行为研究

Influence of the Key Factors of Naphthenic Acid Corrosion under High Flow Rate and Strong Turbulence

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	柴博森, 丛皓, 杨昊旻, 潘军, 朱国仁. 液力变矩器导轮叶片出口角对性能的影响分析[J]. 机械工程学报, 2024, 60(11): 105-114.
[2]	侯亚丽, 汪建文, 王强, 王鑫厅. 建筑物群内屋顶形状对屋顶风力机微观选址的影响[J]. 机械工程学报, 2018, 54(2): 191-200.
[3]	汪朝晖, 饶长健, 高全杰, 孙笑, 王永龙. 基于瞬时涡量助推效应的自激振荡腔室脉动研究[J]. 机械工程学报, 2018, 54(14): 207-214.
[4]	史雪薇, 谭超, 董虓霄, 董峰. 超声多普勒谱修正的油水两相流流速测量[J]. 机械工程学报, 2017, 53(24): 77-84.
[5]	计时鸣, 李军, 谭大鹏. 基于超声波激振强化的软性磨粒流光整加工模拟与试验研究^*[J]. 机械工程学报, 2016, 52(21): 190-197.
[6]	侯亚丽, 汪建文, 王强, 王鑫厅. 风切变对风力机尾流湍流特征影响的研究^*[J]. 机械工程学报, 2016, 52(16): 149-155.
[7]	喻俊荃;赵国群;张存生;陈浩. 阻流块对薄壁空心铝型材挤压过程材料流速的影响[J]. , 2012, 48(16): 52-58.
[8]	黄迎;宁智;宋云超;付娟. 管流中椭球形沉降微粒团再悬浮控制因素分析[J]. , 2012, 48(10): 128-138.
[9]	李姗姗;敖宏瑞;侯珍秀;姜洪源. 基于三电层模型的交流电渗流速分析[J]. , 2011, 47(24): 135-140.
[10]	荆洪英;金基铎;闻邦椿. 一端固定具有中间支承输流管道临界流速及稳定性分析[J]. , 2009, 45(3): 89-93.
[11]	杨健;肖宗亮;邓嘉胤;王乐勤;杨旭. 基于内流场数值模拟的微湍流发生器机械结构优化设计方法[J]. , 2007, 43(5): 127-132.
[12]	丁国良;胡俊伟. 导流罩对空调器室外机噪声的影响[J]. , 2006, 42(3): 136-141.
[13]	金基铎;杨晓东;邹光胜. 两端支承输流管道的稳定性和临界流速分析[J]. , 2006, 42(11): 131-136.
[14]	张敦福;王锡平;张洪伟. 用直接法求解半圆形输液曲管的极限流速[J]. , 2005, 41(5): 221-224.
[15]	张敦福;王锡平;赵俊峰. 悬臂输送管道流—固耦合动力学系统的直接解法[J]. , 2004, 40(3): 195-198.