| Failure analysis of corrosion cracking and simulated testing for a fluid catalytic cracking unit; Failure analysis of corrosion cracking and simulated testing for a fluid catalytic cracking unit | |
| H. Chen; X. G. Li; C. F. Dong; M. Li; J. W. Yang | |
| 2005 ; 2005 | |
| Source Publication | Journal of University of Science and Technology Beijing
 ; Journal of University of Science and Technology Beijing
|
| ISSN | 1005-8850 ; 1005-8850 |
| Volume | 12Issue:2Pages:172-177 |
| Abstract | The failure of a fluid catalysis and cracking unit (FCCU) in a Chinese refinery was investigated by using nondestructive detection methods, fracture surface examination, hardness measurement, chemical composition and corrosion products analysis. The results showed that the failure was caused by the dew point nitrate stress corrosion cracking. For a long operation period, the wall temperature of the regenerator in the FCCU was below the fume dew point. As a result, an acid fume NOx-SOx-H2O medium presented on the surface, resulting in stress corrosion cracking of the component with high residual stress. In order to confirm the relative conclusion, simulated testing was conducted in laboratory, and the results showed similar cracking characteristics. Finally, some suggestions have been made to prevent the stress corrosion cracking of an FCCU from re-occurring in the future.; The failure of a fluid catalysis and cracking unit (FCCU) in a Chinese refinery was investigated by using nondestructive detection methods, fracture surface examination, hardness measurement, chemical composition and corrosion products analysis. The results showed that the failure was caused by the dew point nitrate stress corrosion cracking. For a long operation period, the wall temperature of the regenerator in the FCCU was below the fume dew point. As a result, an acid fume NOx-SOx-H2O medium presented on the surface, resulting in stress corrosion cracking of the component with high residual stress. In order to confirm the relative conclusion, simulated testing was conducted in laboratory, and the results showed similar cracking characteristics. Finally, some suggestions have been made to prevent the stress corrosion cracking of an FCCU from re-occurring in the future. |
| description.department | univ sci & technol beijing, sch mat sci & engn, beijing 100083, peoples r china. chinese acad sci, inst met res, state key lab corros & prot, shenyang 110016, peoples r china. jiujiang branch corp, sinopec, jiujiang 332000, peoples r china.;li, xg (reprint author), univ sci & technol beijing, sch mat sci & engn, beijing 100083, peoples r china;lixiaogang99@263.net ; univ sci & technol beijing, sch mat sci & engn, beijing 100083, peoples r china. chinese acad sci, inst met res, state key lab corros & prot, shenyang 110016, peoples r china. jiujiang branch corp, sinopec, jiujiang 332000, peoples r china.;li, xg (reprint author), univ sci & technol beijing, sch mat sci & engn, beijing 100083, peoples r china;lixiaogang99@263.net |
| Keyword | Stress Corrosion Cracking Stress Corrosion Cracking Fluid Catalytic Cracking Unit Fluid Catalytic Cracking Unit Dew Point Dew Point Failure Failure |
| URL | 查看原文 ; 查看原文 |
| WOS ID | WOS:000228698500015 ; WOS:000228698500015 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/34807 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | H. Chen,X. G. Li,C. F. Dong,et al. Failure analysis of corrosion cracking and simulated testing for a fluid catalytic cracking unit, Failure analysis of corrosion cracking and simulated testing for a fluid catalytic cracking unit[J]. Journal of University of Science and Technology Beijing, Journal of University of Science and Technology Beijing,2005, 2005,12, 12(2):172-177, 172-177. |
| APA | H. Chen,X. G. Li,C. F. Dong,M. Li,&J. W. Yang.(2005).Failure analysis of corrosion cracking and simulated testing for a fluid catalytic cracking unit.Journal of University of Science and Technology Beijing,12(2),172-177. |
| MLA | H. Chen,et al."Failure analysis of corrosion cracking and simulated testing for a fluid catalytic cracking unit".Journal of University of Science and Technology Beijing 12.2(2005):172-177. |
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