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| HIGH TEMPERATURE NAPHTHENIC ACID CORROSION RESEARCH OF TYPICAL AUSTENITIC STAINLESS STEEL |
| JIANG Ke1, CHEN Xuedong1,2, YANG Tiecheng1,2, ZHANG wei2, LIANG Chunlei1 |
1. National Technical Research Center on Safety Engineering of Pressure Vessel and Pipelines, Hefei General Machinery Research Institute, Hefei 230031
2. Institute of Process Equipment and Control Engineering, Zhejiang University of Technology, Hangzhou,310032 |
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Abstract The corrosion behaviors of 321 and 316L austenitic stainless steel in high-temperature naphthenic acid medium were investigated by pipe flow. The influence of the erosion angle on naphthenic acid corrosion resistance of stainless steel was mainly analyzed. The results revealed that naphthenic acid corrosion rate increased with increasing temperature. The corrosion rates of erosion angle 90° is greater than 0° at the same temperature. The present experimental data and API 581, on-line monitoring data are close. Similar results were obtained after the test data compared with the empirical data of API 581 and on-line monitoring data. It was shown that naphthenic acid corrosion is most severe in areas of highest turbulence.
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Received: 25 September 2010
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Corresponding Authors:
YANG Tiecheng
E-mail: ytc888@yahoo.com.cn
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