Corrosion inhibition of α,β-unsaturated carbonyl compounds on steel in acid medium

• Published in: Petroleum science 2009-06, Vol.6 (2), p.201-207
• Main Authors: Gao, Jiancun, Weng, Yongji, Salitanate, Feng, Li, Yue, Hong
• Format: Article
• Language: English
• Subjects: Earth and Environmental Science; Earth Sciences; Economics and Management; Energy Policy; Industrial and Production Engineering; Industrial Chemistry/Chemical Engineering; Mineral Resources; N80钢; 不饱和; 抑制机制; 缓蚀效果; 羰基化合物; 苯环结构; 酸性介质; 防腐效果
• ISSN: 1672-5107; 1995-8226
• DOI: 10.1007/s12182-009-0032-x

Corrosion inhibition of three α,β-unsaturated carbonyl compounds on N80 steel at high temperature and in concentrated acid medium was evaluated, and the inhibition mechanism was investigated. The results proved that both cinnamaldehyde and benzalacetone had an evident anticorrosion effect and could reduce the corrosion of steel effectively in acid medium, α,β-unsaturated carbonyl compounds with a benzene ring structure had good adsorption on steel surface. The experiments proved that polymerization of α,β-unsaturated carbonyl compounds on the steel surface at a high temperature and in concentrated acid medium resulted in a good corrosion inhibiting effect, which was attributed to the structures of α,β-unsaturated carbonyl compounds.