Effect of velocity and sulfur content of crude oil on the corrosion behavior of naphthenic acid

被引：0
|
作者：
Hu Y. [1 ,2 ]
Cheng X. [1 ]
Wang S. [2 ]
Zhang X. [1 ]
Li X. [1 ]
机构：
[1] School of Materials Science and Engineering, University of Science and Technology Beijing
[2] Qilu Branch Company of SINOPEC
来源：
Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section) | 2010年 / 26卷 / 06期
关键词：
Corrosion; Flow speed; Naphthenic acid; Sulfur content;
D O I：
10.3969/j.issn.1001-8719.2010.06.010
中图分类号：
学科分类号：
摘要：
A bypass test of corrosion used for investigation of the corrosion behavior of naphthenic acid in crude oil under different velocity was designed. Effects of velocity and sulfur content of crude oil on the corrosion rate of three different materials were investigated. The results showed that under the experimental conditions, the corrosion rates of 10# carbon steel and Cr5Mo increased with the increasing of the velocity, while the corrosion rate of 321 stainless steel was slightly changed. At the same velocity of crude oil, the 321 stainless steel showed the best corrosion resistance, 10# carbon steel the worst among the three materials. The sulfur mass fraction of crude oil below 0.86% showed slight effect on the corrosion of 10# carbon steel and Cr5Mo. At the sulfur mass fraction of above 0.86%, the corrosion rate of 10# carbon steel and Cr5Mo decreased distinctly with the increasing of sulfur content, the corrosion rate of 321 stainless steel was slightly affected. At the same sulfur content, the 321 stainless steel showed the best corrosion resistance, 10# carbon steel the worst among the three materials.
引用
收藏
页码：889 / 893
页数：4
相关论文
共 18 条
  • [1] Clemente J.S., Fedorak P.M., A review of the occurrence, analyses, toxicity, and biodegradation of naphthenic acids, Chemosphere, 60, 5, pp. 585-600, (2005)
  • [2] Wu X.Q., Jing H.M., Zheng Y.G., Et al., Erosion-corrosion of various oil-refining materials in naphthenic acid, Wear, 256, 1-2, pp. 133-144, (2004)
  • [3] Pei L., Qiu B., Corrosion of tower tray in atmospheric distillation unit processing high acidic crudes, Petrochemical Corrosion and Protection, 22, 1, pp. 63-65, (2005)
  • [4] Wu X., Jing H., Zheng Y., Et al., Study on corrosion and erosion-corrosion behaviors of carbon steel in naphthenic acid mediums at high temperature, Journal of Chinese Society for Corrosion and Protection, 22, 5, pp. 257-263, (2002)
  • [5] Hu Y., Xue G., Progress of equipments corrosion in processing high acidic crude oil, Petrochemical Corrosion and Protection, 21, 4, pp. 5-8, (2004)
  • [6] Ye'Pez O., Influence of different sulfur compounds on corrosion due to naphthenic acid, Fuel, 84, 1, pp. 97-104, (2005)
  • [7] Qu D.R., Zheng Y.G., Jing H.M., High temperature naphthenic acid corrosion and sulphidic corrosion of Q235 and 5Cr1/2Mo steels in synthetic refining media, Corrosion Science, 48, 8, pp. 1960-1985, (2006)
  • [8] Laredo G.C., Naphthenic acids, total acid number and sulfur content profile characterization in Isthmus and Maya crude oils, Fuel, 83, 11-12, pp. 1689-1695, (2004)
  • [9] (2009)
  • [10] (1996)
12