{"title":"Understanding of Corrosion Inhibitor Dispersion Process in Water through Interaction between Stearic Acid and Alkane","authors":"Susumu Hirano, Tatsuya Sei, Midori Kawasaki, Atsushi Kobayashi, Tomokazu Yasuike","doi":"10.5006/4534","DOIUrl":null,"url":null,"abstract":"\n Oil-soluble and water-dispersible corrosion inhibitors are used to mitigate corrosion in pipelines. The performance of corrosion inhibitors has been described mainly in terms of the adsorption of surfactants on metal surfaces. However, the partition of the surfactant from oil to water and its dispersion in water should also significantly affect the corrosion inhibition mechanism of pipelines operating in metal-oil-water systems. Based on this perspective, we investigate the influence of oil on the dispersion process of surfactants. To this end, we measured the inhibition performance, surface tension, and dispersion into the aqueous phase for a simple model inhibitor consisting of stearic acid (surfactant) and alkanes (oil). The results indicate that the mixing of oil with surfactant increases the amount of dispersion in water by decreasing the interfacial tension, thereby improving the corrosion inhibition performance. This strongly suggests that the dispersion of surfactant in the aqueous phase is essentially important in the corrosion inhibition process in metal-oil-water systems as a preliminary step to the formation of hydrophobic film on the metal surface.","PeriodicalId":10717,"journal":{"name":"Corrosion","volume":null,"pages":null},"PeriodicalIF":1.1000,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Corrosion","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.5006/4534","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Oil-soluble and water-dispersible corrosion inhibitors are used to mitigate corrosion in pipelines. The performance of corrosion inhibitors has been described mainly in terms of the adsorption of surfactants on metal surfaces. However, the partition of the surfactant from oil to water and its dispersion in water should also significantly affect the corrosion inhibition mechanism of pipelines operating in metal-oil-water systems. Based on this perspective, we investigate the influence of oil on the dispersion process of surfactants. To this end, we measured the inhibition performance, surface tension, and dispersion into the aqueous phase for a simple model inhibitor consisting of stearic acid (surfactant) and alkanes (oil). The results indicate that the mixing of oil with surfactant increases the amount of dispersion in water by decreasing the interfacial tension, thereby improving the corrosion inhibition performance. This strongly suggests that the dispersion of surfactant in the aqueous phase is essentially important in the corrosion inhibition process in metal-oil-water systems as a preliminary step to the formation of hydrophobic film on the metal surface.
期刊介绍:
CORROSION is the premier research journal featuring peer-reviewed technical articles from the world’s top researchers and provides a permanent record of progress in the science and technology of corrosion prevention and control. The scope of the journal includes the latest developments in areas of corrosion metallurgy, mechanisms, predictors, cracking (sulfide stress, stress corrosion, hydrogen-induced), passivation, and CO2 corrosion.
70+ years and over 7,100 peer-reviewed articles with advances in corrosion science and engineering have been published in CORROSION. The journal publishes seven article types – original articles, invited critical reviews, technical notes, corrosion communications fast-tracked for rapid publication, special research topic issues, research letters of yearly annual conference student poster sessions, and scientific investigations of field corrosion processes. CORROSION, the Journal of Science and Engineering, serves as an important communication platform for academics, researchers, technical libraries, and universities.
Articles considered for CORROSION should have significant permanent value and should accomplish at least one of the following objectives:
• Contribute awareness of corrosion phenomena,
• Advance understanding of fundamental process, and/or
• Further the knowledge of techniques and practices used to reduce corrosion.