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中国腐蚀与防护学报  2023, Vol. 43 Issue (6): 1392-1398     CSTR: 32134.14.1005.4537.2022.335      DOI: 10.11902/1005.4537.2022.335
  研究报告 本期目录 | 过刊浏览 |
氨法脱硫液成分对304不锈钢局部腐蚀发展阶段影响探究
任万凯, 连洲洋(), 周康, 罗正维, 魏无际, 张雪英
南京工业大学环境科学与工程学院 南京 211816
Influence of Ammonia Desulfurization Liquid Components on Localized Corrosion Development Stage of 304 Stainless Steel
REN Wankai, LIAN Zhouyang(), ZHOU Kang, LUO Zhengwei, WEI Wuji, ZHANG Xueying
School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China
引用本文:

任万凯, 连洲洋, 周康, 罗正维, 魏无际, 张雪英. 氨法脱硫液成分对304不锈钢局部腐蚀发展阶段影响探究[J]. 中国腐蚀与防护学报, 2023, 43(6): 1392-1398.
Wankai REN, Zhouyang LIAN, Kang ZHOU, Zhengwei LUO, Wuji WEI, Xueying ZHANG. Influence of Ammonia Desulfurization Liquid Components on Localized Corrosion Development Stage of 304 Stainless Steel[J]. Journal of Chinese Society for Corrosion and protection, 2023, 43(6): 1392-1398.

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摘要: 

通过恒电压模拟闭塞电池和长周期静态模拟点蚀实验研究氨法脱硫浆液主要成分对304不锈钢局部腐蚀发展阶段的影响,并对腐蚀产物和溶液分别进行X射线光电子能谱 (XPS) 及紫外可见光谱分析。结果表明,氨法脱硫浆液中低浓度 (NH4)2SO4对304不锈钢局部腐蚀发展具有促进作用,高浓度则具有抑制作用;随着Cl-浓度的增加,不锈钢局部腐蚀加剧;F-与腐蚀产生的金属离子可以形成络合物附着在不锈钢表面以及与Cl-的竞争迁移作用使得F-的存在对不锈钢的局部腐蚀具有一定的抑制作用。

关键词 氨法脱硫304不锈钢局部腐蚀模拟闭塞电池模拟静态点蚀    
Abstract

The influence of main components of ammonia desulfurization slurry on the development stage of localized corrosion for 304 stainless steel was studied by means of constant voltage occlusion battery and long-term static pitting corrosion test aiming to simulate the real local corrosion, as well as XPS and UV-VIS spectroscopy to characterize corrosion products and solutions. The results showed that low concentration (NH4)2SO4 in ammonia desulfurization slurry can promote the effect on localized corrosion development of 304 stainless steel, while high concentration can inhibit it. With the increase of Cl- concentration, the localized corrosion was intensified. The complex compounds on the surface resulted from the interaction of F- and metal ions, while the competitive migration effect with Cl- made the presence of F- have a certain inhibitory effect on the localized corrosion of stainless steel.

Key wordsammonia desulfurization    304 stainless steel    localized corrosion    analog occlusion battery    simulate static pitting corrosion
收稿日期: 2022-10-28      32134.14.1005.4537.2022.335
ZTFLH:  TG172  
基金资助:国家自然科学基金(21676144)
通讯作者: 连洲洋,E-mail: lianzy@njtech.edu.cn,研究方向为金属材料的腐蚀与防护
Corresponding author: LIAN Zhouyang, E-mail: lianzy@njtech.edu.cn
作者简介: 任万凯,男,1997年生,硕士生
图1  局部腐蚀模拟闭塞电池示意图
图2  304不锈钢静态模拟点蚀实验试片及装置示意图
图3  不同硫酸铵质量分数时系统耗电量和内电极腐蚀量的变化
图4  不同时间304不锈钢小孔腐蚀量随硫酸铵质量分数的变化
图5  不同Cl-浓度时系统耗电量、内电极腐蚀量、闭塞区溶解氧和pH的变化
图6  304不锈钢小孔腐蚀量随Cl-浓度的变化
图7  不同F-浓度时系统耗电量、内电极腐蚀量、闭塞区pH的变化
F- concentration mol·L-1Ionic transporting quantity /×10-3 mol·L-1Corrosion rate / mm·a-1
ΔF-ΔCl-
00120.53237.22
0.05-22.6466.98165.89
0.10-32.6553.87142.33
0.15-27.1646.56110.77
0.2-23.4542.12104.84
0.2564.6330.0331.41
0.375.3627.860.251
表1  不同初始F-浓度时的数据对比
图8  不同F-浓度时小孔腐蚀量的变化
图9  闭塞电池内部腐蚀产物XPS谱
图10  闭塞闭电池实验后内部溶液紫外可见光吸收光谱
1 Li J G, Zhu F H, Sun X L. Current status and challenges of atmospheric pollution prevention and control of thermal power plants in China [J]. Elect. Power, 2018, 51(6): 2
1 郦建国, 朱法华, 孙雪丽. 中国火电大气污染防治现状及挑战 [J]. 中国电力, 2018, 51(6): 2
2 Qu Z C. Analysis and countermeasures of comprehensive advantages and existing problems of flue gas ammonia desulfurization technology [J]. Sulph. Acid Ind., 2022, (2): 1
2 屈战成. 烟气氨法脱硫技术的综合优势和存在问题分析及对策 [J]. 硫酸工业, 2022, (2): 1
3 Liu X W. Progress of desulfurization and denitration technology of flue gas in China [J]. IOP Conf. Ser. Earth Environ. Sci., 2019, 242: 042010
4 Fu Z H, Xu J H, Wang D, et al. Corrosion of Q235 carbon steel in ammonia-based flue gas desulfurization slurry [J]. Corros. Sci. Prot. Technol., 2019, 31(5): 521
4 付志浩, 徐佳欢, 汪 丹 等. 烟道气氨法脱硫液对Q235碳钢腐蚀研究 [J]. 腐蚀科学与防护技术, 2019, 31(5): 521
5 Luo Z W, Zhang Y, Zhou Y Z, et al. Effect of fluoride ion on the corrosion of 304 stainless steel in (NH4)2SO4 solution containing chloride ions [J]. Int. J. Electrochem. Sci., 2021, 16: 210513
doi: 10.20964/2021.05.30
6 Luo Z W, Zuo J, Jiang H, et al. Inhibition effect of fluoride ion on corrosion of 304 stainless steel in occluded cell corrosion stage in the presence of chloride ion [J]. Metals, 2021, 11: 350
doi: 10.3390/met11020350
7 Lv Z P, Yang W. Life prediction of structures suffering localized corrosion [J]. Corros. Prot., 1999, (5): 206
7 吕战鹏, 杨 武. 局部腐蚀作用下设备的寿命预测 [J]. 腐蚀与防护, 1999, (5): 206
8 Mai X S. Analysis and treatment of stainless steel corrosion defect in ammonia desulfurization absorption tower [J]. Guangxi Elect. Power, 2014, 37(5): 82
8 麦秀树. 氨法脱硫吸收塔内不锈钢腐蚀缺陷分析及处理 [J]. 广西电力, 2014, 37(5): 82
9 Lian Z Y, Luo Z W, Yuan L R, et al. Corrosion investigation of ammonia flue gas desulfurization (Article) [J]. Mater. Perform., 2016, 55: 50
10 Yin Y Y, Liu J F, Miu K X, et al. Effect of SO 4 2 - on corrosion of stainless steel in solutions containing Cl- [J]. J. Chin. Soc. Corros. Prot., 2022, 42: 34
10 尹阳阳, 刘建峰, 缪克基 等. SO 4 2 - 对不锈钢在含Cl-溶液中腐蚀影响的研究进展 [J]. 中国腐蚀与防护学报, 2022, 42: 34
doi: 10.11902/1005.4537.2020.234
11 Yu C Y, Zuo J, Fu Z H, et al. Optimization of simulated rust layer of 304 stainless steel occluded cell in ammonia desulphurization slurry [J]. Corros. Prot., 2022, 43(8): 28
11 余晨月, 左 杰, 付志浩 等. 氨法脱硫浆液中304不锈钢闭塞电池模拟锈层的优选 [J]. 腐蚀与防护, 2022, 43(8): 28
12 Liu M N. The influence of surface modification on corrosion behavior of 304 stainless steel in simulated nuclear power environment [D]. Anshan: University of Science and Technology Liaoning, 2020
12 刘梦楠. 表面改性对304不锈钢在模拟核电环境下腐蚀行为影响研究 [D]. 鞍山: 辽宁科技大学, 2020
13 Voigt C, Hubálková J, Ditscherlein L, et al. Characterization of reticulated ceramic foams with mercury intrusion porosimetry and mercury probe atomic force microscopy [J]. Ceram. Int., 2018, 44: 22963
doi: 10.1016/j.ceramint.2018.09.094
14 Li S J, Feng L J, Zhang J. Corrosion research of Quinoline inhibitor for pipeline steel in simulated occluded solution [J]. J. Basic Sci. Eng., 2016, 24: 1025
14 李善建, 冯拉俊, 张 静. 喹啉衍生物缓蚀剂对油管钢材在模拟溶液闭塞区中的腐蚀研究 [J]. 应用基础与工程科学学报, 2016, 24: 1025
15 Liu X Y, Zhao Y Z, Zhang H, et al Effect of chloride concentration in a simulated concrete pore solution on metastable pitting of 304 stainless steel [J]. J. Chin. Soc. Corros. Prot., 2021, 41: 195
15 刘欣怡, 赵亚州, 张 欢 等. 混凝土孔隙液中Cl-浓度对304不锈钢亚稳态点蚀的影响 [J]. 中国腐蚀与防护学报, 2021, 41: 195
doi: 10.11902/1005.4537.2020.020
16 Scheffe J R, Francés A, King D M, et al. Atomic layer deposition of iron (III) oxide on zirconia nanoparticles in a fluidized bed reactor using ferrocene and oxygen [J]. Thin Solid Films, 2009, 517: 1874
doi: 10.1016/j.tsf.2008.09.086
17 Jeon B H, Dempsey B A, Burgos W D. Kinetics and mechanisms for reactions of Fe (II) with iron (III) oxides [J]. Environ. Sci. Technol., 2003, 37: 3309
doi: 10.1021/es025900p
18 Salvi A M, Castle J E, Watts J F, et al. Peak fitting of the chromium 2p XPS spectrum [J]. Appl. Surf. Sci., 1995, 90: 333
doi: 10.1016/0169-4332(95)00168-9
19 Lin Y Z. Crevice corrosion of stainless steel in NaCl solution-changes of anolyte and state of Cr (Ⅲ) existing within crevice [J]. J. Chin. Soc. Corros. Prot., 1985, 5: 9
19 林玉珍. 不锈钢在氯化钠水溶液中的缝隙腐蚀—缝内阳极液的变化和Cr (Ⅲ)存在的形态 [J]. 中国腐蚀与防护学报, 1985, 5: 9
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