奥氏体不锈钢在连多硫酸中的腐蚀与防护
Corrosion and Protection of Austenitic Stainless Steel in Polythionic Acid
摘 要
结合某柴油加氢装置高压换热器管失效案例,分析了奥氏体不锈钢设备应力腐蚀开裂的原因,以及不锈钢设备应力腐蚀的过程。另外对影响不锈钢设备连多硫酸应力腐蚀开裂的因素进行了分析,并提出了预防应力腐蚀开裂的措施,确保装置长周期运行。
奥氏体不锈钢
连多硫酸
应力腐蚀
diesel hydrogenation
austenitic stainless steel
polythionic acid
stress corrosion
Abstract
Based on a failure case of high-pressure heat-exchanger pipe of a diesel hydrogenation unit, the reasons for stress corrosion cracking of austenitic stainless steel equipment were analyzed, as well as the stress corrosion process of stainless steel equipment. In addition, the factors affecting the polythionic acid stress corrosion cracking of stainless steel equipment were analyzed, and measures to prevent stress corrosion cracking were put forward to ensure long-term operation of the device.
中图分类号 TG172 DOI 10.11973/fsyfh-202208022
所属栏目 失效分析
基金项目
收稿日期 2020/9/21
修改稿日期
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引用该论文: ZHOU Hao. Corrosion and Protection of Austenitic Stainless Steel in Polythionic Acid[J]. Corrosion & Protection, 2022, 43(8): 115
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参考文献
【1】杨建成.汽柴油加氢装置反应流出物系统的腐蚀与对策 .石油化工腐蚀与防护,2012,29(1):20-22.
【2】赵俊伟,徐宗坤,顾军.加氢装置大检修期间如何避免连多硫酸腐蚀 .中国化工贸易,2013(7):141.
【3】赵俊伟.加氢装置大检修期间避免连多硫酸腐蚀的措施 .化工技术与开发,2013,42(9):79-80.
【2】赵俊伟,徐宗坤,顾军.加氢装置大检修期间如何避免连多硫酸腐蚀 .中国化工贸易,2013(7):141.
【3】赵俊伟.加氢装置大检修期间避免连多硫酸腐蚀的措施 .化工技术与开发,2013,42(9):79-80.
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