碳钢在90℃、H2S-HCl-H2O环境下的腐蚀行为 Ⅱ-H2S溶液中HCl浓度对碳钢腐蚀行为的影响

中国腐蚀与防护学报

2011, Vol. 31

Issue (1): 34-39

研究报告

本期目录 | 过刊浏览

碳钢在90℃、H₂S-HCl-H₂O环境下的腐蚀行为 Ⅱ-H₂S溶液中HCl浓度对碳钢腐蚀行为的影响

唐俊文¹,邵亚薇¹,陈阵²，张涛¹，孟国哲¹，王福会^1,3

1. 哈尔滨工程大学材料科学与化学工程学院腐蚀与防护实验室哈尔滨 150001
2. 中国石油兰州石油化工公司兰州 730060
3. 中国科学院金属研究所金属腐蚀与防护国家重点实验室沈阳 110016

CORROSION BEHAVIOR OF CARBON STEEL IN H₂S-HCL-H₂O AT 90℃ Ⅱ-The Effect of HCl Concentration on Corrosion Behavior of Carbon Steel in H₂S Solutions

TANG Junwen¹, SHAO Yawei¹, CHEN Zhen², ZHANG Tao¹,MENG Guozhe¹, WANG Fuhui^1,3

1. Corrosion and Protection Laboratory, College of Materials Science and Chemical Engineering,Harbin Engineering University, Harbin 150001
2. Academy of Lanzhou Petrochemical Company, CNPC, Lanzhou 730060；
3. State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016

全文: PDF(1751 KB)

摘要: 利用腐蚀失重和电化学测试方法并结合SEM分析技术，研究90℃含有H₂S的模拟炼油厂常减压塔顶冷凝水中不同HCl浓度下碳钢的腐蚀行为。结果表明，HCl有效地促进碳钢的阴极过程，阴极去极化过程随HCl浓度升高而加剧，碳钢腐蚀速率加快。无HCl时，碳钢表面形成大量的腐蚀坑，而有HCl 存在时，电极表面呈现严重的均匀腐蚀。金属表面形成的腐蚀产物为四方硫铁矿。

关键词 ：碳钢, HCl, H₂S, 腐蚀

Abstract：The electrochemical behavior of SAE-1020 carbon steel in acidic simulation solutions containing H₂S with different concentrations of HCl at 90℃ was investigated by mass loss method, electrochemical measurements, SEM observations and XRD. The results indicated that the cathodic depolarization was promoted greatly and the corrosion rate of carbon steel increased remarkably with the increase of HCl concentration in H₂S-containing solutions. Large numbers of corrosion holes formed on carbon steel in H₂S-containing solution without HCl, whereas only the uniform corrosion characteristic was observed on carbon steel surface in the simulation solutions containing different concentrations of HCl. Mackinawite was the sole corrosion product formed on the carbon steel surface in the H₂S-containing solutions with and without HCl.

Key words： carbon steel hydrogen chloride hydrogen sulfide corrosion

收稿日期: 2009-12-29

ZTFLH:

TG172

通讯作者: 邵亚薇 E-mail: shaoyawei@ hrbeu.edu.cn

Corresponding author: SHAO Yawei E-mail: shaoyawei@ hrbeu.edu.cn

作者简介: 唐俊文，男，1985年生，硕士生，研究方向为金属材料的腐蚀与防护

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引用本文:

唐俊文,邵亚薇,陈阵，张涛，孟国哲，王福会. 碳钢在90℃、H₂S-HCl-H₂O环境下的腐蚀行为 Ⅱ-H₂S溶液中HCl浓度对碳钢腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2011, 31(1): 34-39.
TANG Jun-Wen, YU Fu-Hui, MENG Guo-Zhe, GUO Jin-Biao, ZHANG Shou, SHAO Ya-Wei. CORROSION BEHAVIOR OF CARBON STEEL IN H₂S-HCL-H₂O AT 90℃ Ⅱ-The Effect of HCl Concentration on Corrosion Behavior of Carbon Steel in H₂S Solutions. J Chin Soc Corr Pro, 2011, 31(1): 34-39.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2011/V31/I1/34

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