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

• 作 者: Gao Jiancun Weng Yongji Salitanate Feng Li Yue Hong
• 机 构: China University of Petroleum Beijing, Beijing 102249, China;Xinjiang Petroleum Institute, Urumqi, X
• 出 处: 石油科学（英文版）
• 发表日期: 2009年2期
• 关键词: α β-unsaturated carbonyl compounds corrosion inhibitor adsorption oilfield acidi

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 cinnamaidehyde 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.