研究了A3碳钢在高温环烷酸介质中的冲刷腐蚀行为，并考察 了其在工业炼油环境中的抗冲蚀性能.结果表明：酸值、温度、流速是影响碳钢环烷酸冲刷 腐蚀行为的主要因素，它们通过影响环烷酸分子向金属表面的传输、在金属表面的吸附、表 面活性反应及腐蚀产物的剥离等过程来影响冲刷腐蚀的程度.
The corrosion and erosion-corrosion behaviors of A3 carbon steel in naphthenic acid mediums at high temperature were studied in det ail.The erosion-corrosion resistance of A3 carbon steel in industrial oil-refini ng environment was also investigated.The results revealed that the total acid nu mber (TAN),the temperature and the velocity of flow play important roles in affe cting the naphthenic acid corrosion (NAC)and erosion-corrosion (NAEC)behaviors o f carbon steel,which influence the degree of NAC and NAEC by influencing the tra nsportation of naphthenic acid molecules toward the metal surface,the absorption of naphthenic acid molecules on the metal surface,the active reaction on the me tal surface,and the spallation of corrosion products from the metal surface.In g iven corrosion mediums,the control step of NAC process is mainly dependent on th e temperature.The carbon steel has little resistance to the NAC and NAEC,so this material should be used cautiously in industry oil-refining installation,especi ally in the places where the temperature,the TAN and the velocity of flow are ra ther high.
参考文献
| [1] |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%