Enhancement of corrosion resistance of the cooling systems in desalination plants by green inhibitor

被引：65

作者：

Deyab, M. A. ^{[1
]}

Guibal, Eric ^{[2
]}

机构：

[1] Egyptian Petr Res Inst EPRI, Cairo, Egypt

[2] IMT Mines Ales, Polymers Composites & Hybrids, 6 Ave Clavieres, F-30319 Ales, France

来源：

SCIENTIFIC REPORTS | 2020年 / 10卷 / 01期

关键词：

CARBON-STEEL CORROSION; NATURAL SOURCE INHIBITOR; 1 M HCL; MILD-STEEL; PITTING CORROSION; ALUMINUM-ALLOY; EXTRACTS; ACID; ADSORPTION; IMIDAZOLIUM;

D O I：

10.1038/s41598-020-61810-9

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Taraxacum officinale extract (TOE) has been tested for preventing the corrosion of cooling systems in desalination plants. The inhibition of corrosion effects has been characterized by chemical and electrochemical methods (Mass loss, potentiodynamic polarization and electrochemical impedance spectroscopy) and surface observations. Tests on cooling systems were carried out in seawater environment. The presence of TOE in the re-circulation loop decreases the corrosion of carbon steel by adsorption of TOE compounds on the surface of metal pipes. The optimum TOE concentration was reached at 400mgL(-1) and the inhibition efficiency was higher than 94%. TOE allowed increasing the energy barrier of the corrosion process. SEM, FT-IR and UV spectra observations confirmed that TOE prevents corrosion attacks at the surface of the pipes. HPLC analyses identified the presence of saccharides, organic acids, phenol antioxidant and caffeic acid derivatives in TOE, which may be the active promoters of corrosion inhibition.

引用

页数：13

共 70 条

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