| 冷高压分离器在H2S环境下应力腐蚀开裂敏感性评估 |
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| 引用本文： | 李明,李晓刚,陈钢,胡洋,薛光亭.冷高压分离器在H2S环境下应力腐蚀开裂敏感性评估[J].化工学报,2006,57(12):2997-3004. |
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| 作者姓名： | 李明 李晓刚 陈钢 胡洋 薛光亭 |
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| 作者单位： | 北京科技大学腐蚀与防护中心，北京 100083;中国特种设备检测研究中心，北京 100013;中国石化集团公司齐鲁分公司胜利炼油厂，山东 淄博 255434 ; |
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| 基金项目： | 中国石油化工集团公司资助项目
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国家重点基础研究发展计划(973计划) |
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| 摘 要： | 针对制造过程中由于开孔失误而进行补焊的冷高压分离器在高压、高浓度的H2S环境的使用安全问题，采用了电化学充氢、恒应变和慢拉伸的实验方法，研究了制造冷高压分离器的主体材料16Mn(HIC)钢和普通的16Mn钢及其焊缝的氢扩散系数，在不同H2S浓度、pH值，模拟冷高压分离器操作环境溶液和实际溶液中的腐蚀规律和硫化氢应力腐蚀开裂（SSCC）敏感性，结合实际腐蚀环境的检测和分析结果，对补焊后的冷高压分离器的使用安全给出了综合评估.
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| 关 键 词： | 冷高压分离器 16Mn钢 硫化氢应力腐蚀开裂 评估 |
| 文章编号： | 0438-1157（2006）12-2997-08 |
| 收稿时间： | 10 24 2005 12:00AM |
| 修稿时间： | 2005-10-242006-02-14 |
Evaluation for sulfide stress corrosion cracking of cold-high pressure segregator |
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| LI Ming,LI Xiaogang,CHEN Gang,HU Yang,XUE Guangting.Evaluation for sulfide stress corrosion cracking of cold-high pressure segregator[J].Journal of Chemical Industry and Engineering(China),2006,57(12):2997-3004. |
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| Authors: | LI Ming LI Xiaogang CHEN Gang HU Yang XUE Guangting |
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| Affiliation: | 1. Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China ; 2. China Special Equipment Inspection and Research Center, Beijing 100013, China ; 3 Shengli Refinery, SINOPEC Qilu Company, Zibo 255434, Shandong, China |
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| Abstract: | An incorrect hole on a cold-high pressure segregator was plugged up by welding.The cold-high pressure segregator runs in the environment of high pressure and high H_2S.Accordingly, the accident of sulfide stress corrosion cracking (SSCC) should be taken into account.The SSCC sensitivity and cracking time of 16Mn(HIC) steel used to make the cold-high pressure segregator and common 16Mn steel in solutions with various H_2S contents and pH values, simulated solution and operating solution were investigated by constant strain bend and slow strain rate test (SSRT).Hydrogen diffusion coefficients of 16Mn(HIC) steel, 16Mn steel and their welded seams were also tested by the electrolyte hydrogen charged method.Safety evaluation of the cold-high pressure segregator was given with above results. |
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| Keywords: | cold-high pressure segregator 16Mn steel sulfide stress corrosion cracking evaluation |
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