Mercaptans, also known as thiols, are organic sulfur compounds present in crude oil, characterized by the presence of a sulfhydryl group (-SH) bonded to a carbon atom. They contribute to corrosion through several mechanisms, primarily by directly attacking metal surfaces and accelerating electrochemical corrosion processes. One primary way mercaptans contribute to corrosion is through direct chemical attack. The sulfhydryl group (-SH) in mercaptans is reactive and can directly react with metals like iron to form metal sulfides and release hydrogen. This process weakens the metal structure and leads ....
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