Correlation between the corrosivity of naphthenic acids and their chemical structures

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	Correlation between the corrosivity of naphthenic acids and their chemical structures
	D. R. Qu; Y. G. Zheng; X. Jiang; W. Ke
	2007
发表期刊	Anti-Corrosion Methods and Materials
ISSN	0003-5599
卷号	54 期号:4 页码:211-218
摘要	Purpose - The objective of the present work was to study the influence of chemical compositions of five naphthenic acids (NAs) extracted from Liaohe crude oil on their corrosivity. Design/methodology/approach - Fourier-transform infrared spectrometry and electron impact mass spectrometry were used to characterize the chemical structures and compositions if five NAs. The corrosivities of the NAs were assessed by stagnant NA corrosion (NAC) tests. An attempt was made to identify any correlation between the chemical composition of the NAs and their corrosiveness. Findings - The acidic species in all five NA samples were saturated aliphatic and naphthenic acids and the amount of aromatic and unsaturated acids was negligible. A relationship between the carboxylic acid distribution and the molecular weight was obtained. Most of the carboxylic acids in five NAs contained 0-3 ring structures. NAs with lower molecular weight and fewer ring structures usually were more corrosive. Originality/value - The findings have important implications for assessing the corrosivity of acidic crude oils from various resources.
部门归属	chinese acad sci, inst met res, environm corros ctr, shenyang, peoples r china.;zheng, yg (reprint author), chinese acad sci, inst met res, environm corros ctr, shenyang, peoples r china;ygzheng@imr.ac.cn
关键词	Acids Corrosion Mass Spectrometry Oils Chromatography-mass Spectrometry Erosion-corrosion High-temperature Crude-oil Steels Q235
URL	查看原文
WOS记录号	WOS:000248072700001
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33793
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. R. Qu,Y. G. Zheng,X. Jiang,et al. Correlation between the corrosivity of naphthenic acids and their chemical structures[J]. Anti-Corrosion Methods and Materials,2007,54(4):211-218.
APA	D. R. Qu,Y. G. Zheng,X. Jiang,&W. Ke.(2007).Correlation between the corrosivity of naphthenic acids and their chemical structures.Anti-Corrosion Methods and Materials,54(4),211-218.
MLA	D. R. Qu,et al."Correlation between the corrosivity of naphthenic acids and their chemical structures".Anti-Corrosion Methods and Materials 54.4(2007):211-218.