摘要
通过用SUS304L不锈钢制作的楔形张开加载预裂纹试样,在280℃、质量分数为3．0%的NaOH溶液的条件下进行应力腐蚀试验,以模拟对苯二甲酸(PTA)装置的加氢反应器PD-201不停车碱洗工作过程中SUS304L不锈钢在该介质环境下的抗应力腐蚀性能。结果表明：SUS304L不锈钢在此条件下经720h的浸泡,未发生应力腐蚀开裂现象,设备泵用SUS304L不锈钢作为内衬复合层是安全的。
The stress corrosion cracking experiments were conducted using SUS 300 L stainless steel WOL samples in 3.0% NaOH solution by mass fraction at 280℃ in order to study the anti-stress corrosion performance of PD-201 hydrogenator made of SUS 300 L stainless steel of purified terephthalic acid （PTA） plant during alkaline washing without stopping production. The resuits showed that no stress corrosion cracking phenomenon occurred after immersing SUS 300L stainless steel in NaOH solution for 720h, which proved it safety to use SUS 304L stainless steel as internal lining composite.
出处
《合成纤维工业》
CAS
CSCD
北大核心
2006年第4期28-30,34,共4页
China Synthetic Fiber Industry
关键词
对苯二甲酸
加氢反应器
应力腐蚀开裂
碱洗
催化剂
安全分析
terephthalic acid
hydrogenator
stress corrosion cracking
alkaline washing
catalyst
safety analysis
