| Naphthenic acid corrosion characteristic and corrosion product film resistance of carbon steel and Cr5Mo low alloy steel in secondary vacuum gas oil | |
| Liu, G. Q.1; Zhang, X. L.1; Qu, D. R.2; Zheng, Y. G.3; Jiang, S. L.3; Jiang, X.2; Yang, Q. X.4; Han, F. L.1 | |
| Corresponding Author | Zheng, Y. G.(ygzheng@imr.ac.cn) ; Jiang, S. L.(sljiang@imr.ac.cn) |
| 2016 | |
| Source Publication | CORROSION ENGINEERING SCIENCE AND TECHNOLOGY
 |
| ISSN | 1478-422X |
| Volume | 51Issue:6Pages:445-454 |
| Abstract | Although naphthenic acid corrosion (NAC) has been studied for many years, the mechanism of NAC is not fully understood. The objective of this paper is to study high-temperature NAC in secondary vacuum gas oil of an industrial crude oil vacuum distillation tower. A high-temperature autoclave was applied to conduct high-temperature corrosion test to investigate NAC behaviour of carbon steel and Cr5Mo low alloy steel at different sulphur contents and total acid numbers (TAN). The result shows that the corrosion rate of carbon steel and low alloy steel is high at low TAN and high TAN while it keeps at a low value at medium TAN. Corrosion product film on Cr5Mo low alloy steel surface is denser and more compact than that of carbon steel at high TAN. The chromium present in Cr5Mo low alloy steel plays an important role in NAC resistance by the formation of Cr7S8 film in the inner layer of the scale. Corrosion rates of the two steels in secondary vacuum gas oil are high at low TAN and high TAN, but low at medium TAN which are strange and different from previous experimental results conducted in non-industrial oil solution. A tentative explanation for this new phenomenon is also put forward. |
| Keyword | Low alloy steel Carbon steel Naphthenic Acid SEM Sulphidation Passive films |
| Funding Organization | China-EU international cooperation project ; Science and Technology Support Program of Ningxia province ; Major project of Beifang university of nationalities |
| DOI | 10.1080/1478422X.2015.1137431 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | China-EU international cooperation project[SQ2013ZOG300003] ; Science and Technology Support Program of Ningxia province[2014ZYH50] ; Major project of Beifang university of nationalities[2015KJ24] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000382963300007 |
| Publisher | TAYLOR & FRANCIS LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/122613 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zheng, Y. G.; Jiang, S. L. |
| Affiliation | 1.Beifang Univ Nationalities, Sch Mat Sci & Engn, Ningxia 750021, Peoples R China 2.SINOPEC Res Inst Safety Engn, 218 Yanan 3rd RD, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, 62 Wencui Rd, Shenyang 110016, Peoples R China 4.Lulea Univ Technol, MiMeR Minerals & Met Res Lab, SE-97187 Lulea, Sweden |
| Recommended Citation GB/T 7714 | Liu, G. Q.,Zhang, X. L.,Qu, D. R.,et al. Naphthenic acid corrosion characteristic and corrosion product film resistance of carbon steel and Cr5Mo low alloy steel in secondary vacuum gas oil[J]. CORROSION ENGINEERING SCIENCE AND TECHNOLOGY,2016,51(6):445-454. |
| APA | Liu, G. Q..,Zhang, X. L..,Qu, D. R..,Zheng, Y. G..,Jiang, S. L..,...&Han, F. L..(2016).Naphthenic acid corrosion characteristic and corrosion product film resistance of carbon steel and Cr5Mo low alloy steel in secondary vacuum gas oil.CORROSION ENGINEERING SCIENCE AND TECHNOLOGY,51(6),445-454. |
| MLA | Liu, G. Q.,et al."Naphthenic acid corrosion characteristic and corrosion product film resistance of carbon steel and Cr5Mo low alloy steel in secondary vacuum gas oil".CORROSION ENGINEERING SCIENCE AND TECHNOLOGY 51.6(2016):445-454. |
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