摘要
苏丹脱酸原油和蓬莱原油相比,酸值接近,但腐蚀性远小于蓬莱原油,这主要归因于碳数较小的石油酸的强腐蚀性。苏丹高酸原油脱酸后,石油酸总量减少,碳数较小腐蚀性强的石油酸被脱除,故而腐蚀性大大降低。通过分析苏丹高酸原油腐蚀前后的石油酸分布,进一步验证了碳数较小的石油酸是造成腐蚀的主要原因。
Sudan crude oil＇s total acid number （TAN） is close to that of Penlai crude, but its corrosivity is much lower than that of Penglai crude. This is attributable to the strong corrosivity of the smaller molecule petroleum carboxylic acid. After acid removal from high TAN Sudan crude oil, the smaller molecule petroleum carboxylic acid with strong corrosivity is removed and the total petroleum carboxylic acid is reduced. This has greatly reduced the corrosivity of the crude oil. The analysis of distribution of the petroleum carboxylic acid before and after corrosion concludes that the smaller molecule petroleum carboxylic acid is culprit of corrosion.
出处
《石油化工腐蚀与防护》
CAS
2008年第2期1-3,12,共4页
Corrosion & Protection In Petrochemical Industry
关键词
高酸原油
石油酸
腐蚀
总酸值
high- acidity crude, naphthenic acid, corrosion, total acid number
