毛竹叶提取物在饱和co2油田采出水中对L245N钢的环保型缓蚀剂研究

IF 2.7 4区 材料科学 Q3 ELECTROCHEMISTRY Corrosion Reviews Pub Date : 2023-05-16 DOI:10.1515/corrrev-2022-0099
San He, Shiqi Xue, Huilan Xu, Bin Li, Jian-Feng Li
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引用次数: 0

摘要

摘要采用电化学实验(EIS)、失重试验、傅里叶变换红外光谱(FTIR)、分子动力学模拟(MD)和扫描电镜(SEM)等方法研究毛竹叶提取物(BLE)对L245N钢在饱和co2油田采出水中的缓蚀作用。结果表明:BLE在L245N钢表面的吸附符合Langmuir等温吸附;电化学测试表明,在45 °C和4 (%v/v)条件下,最大缓蚀率为98.76 %。FTIR分析表明,BLE中含有O - h、N-H、C=O、C=C、C - n、C - O等功能基团和有效化合物oritin。SEM结果表明,添加BLE后,L245N金属的腐蚀明显降低。MD模拟表明,BLE分子倾向于吸附在Fe表面,形成一层抑制膜。
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Hairy bamboo leaf extract as an eco-friendly corrosion inhibitor for L245N steel in CO2-saturated oilfield produced water
Abstract The inhibition of the corrosion of L245N steel in the CO2-saturated oilfield produced water by the extract of hairy bamboo leaf extract (BLE) has been investigated using electrochemical experiment (EIS), weight loss test, Fourier transform infrared spectroscopy (FTIR), molecular dynamics simulation (MD), and scanning electron microscopy (SEM). The results showed adsorption of BLE on the surface of L245N steel conforms to the Langmuir isothermal adsorption. Electrochemical measurements indicated the maximum inhibition efficiency of 98.76 % at 45 °C and 4 (%v/v). FTIR analysis showed that the BLE contains functional moieties such as O–H, N–H, C=O, C=C, C–N, C–O, and orientin as the effective compound. SEM illustrated that with the addition of BLE, the corrosion of L245N metal is significantly reduced. MD simulation showed that BLE molecules tend to adsorb on the Fe surface, forming an inhibitor film.
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来源期刊
Corrosion Reviews
Corrosion Reviews 工程技术-材料科学:膜
CiteScore
5.20
自引率
3.10%
发文量
44
审稿时长
4.5 months
期刊介绍: Corrosion Reviews is an international bimonthly journal devoted to critical reviews and, to a lesser extent, outstanding original articles that are key to advancing the understanding and application of corrosion science and engineering in the service of society. Papers may be of a theoretical, experimental or practical nature, provided that they make a significant contribution to knowledge in the field.
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