Deyab M A, Mohsen Q
Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo, Egypt.
Department of Chemistry, College of Science, Taif University, Taif, Saudi Arabia.
Sci Rep. 2025 Jan 24;15(1):3098. doi: 10.1038/s41598-025-87806-x.
This study highlights the challenges in using environmentally friendly corrosion inhibitors in a variety of industries by examining the effects of avocado extract as a corrosion inhibitor on the corrosion behavior of carbon steel in salty formation water (SFW) generated from West Egyptian petroleum fields. A combination of weight loss and electrochemical experiments were used to examine the corrosion properties of carbon steel at different avocado extract concentrations (20-100 mg L). A number of methods, including scanning electron microscopy (SEM), energy dispersive X-ray (EDAX), and UV-Visible analyses were employed to identify the configuration and chemical components of corroded substrates. The avocado extract demonstrated the highest inhibition corrosion efficiency value at a concentration of 100 mg L, exhibiting an inhibitory effectiveness of approximately 92.4%. The adsorption isotherm of avocado extract has been identified as the Langmuir type, exhibiting cathodic-anodic efficiency. The addition of avocado extract increases the activation energy of the oxidation reaction from 13.8 1 to 51.6 kJ mol. This work offers a newly viewpoint for future research on the prevention of carbon steel corrosion by extracting an effective avocado extract for the first time in an SFW solution.
本研究通过考察鳄梨提取物作为缓蚀剂对西埃及油田产出的含盐地层水(SFW)中碳钢腐蚀行为的影响,突出了在各种行业中使用环保型缓蚀剂所面临的挑战。采用失重法和电化学实验相结合的方法,研究了不同浓度(20 - 100 mg/L)鳄梨提取物对碳钢腐蚀性能的影响。运用了多种方法,包括扫描电子显微镜(SEM)、能量色散X射线(EDAX)和紫外 - 可见光谱分析,以确定腐蚀基体的结构和化学成分。鳄梨提取物在浓度为100 mg/L时表现出最高的缓蚀效率值,缓蚀效果约为92.4%。鳄梨提取物的吸附等温线被确定为朗缪尔型,呈现出阴阳极效率。添加鳄梨提取物使氧化反应的活化能从13.8 kJ/mol增加到51.6 kJ/mol。这项工作首次在SFW溶液中提取出有效的鳄梨提取物,为未来碳钢腐蚀防护研究提供了新的视角。