Enhancement of corrosion resistance in MSF desalination plants during acid cleaning operation by cationic surfactant

被引：64
作者：
Deyab, M. A. [1 ]
机构：
[1] EPRI, Cairo, Egypt
来源：
DESALINATION | 2019年 / 456卷
关键词：
MSF plants; Cationic surfactant; Stainless steel; Corrosion; Quantum chemistry; MILD-STEEL CORROSION; CARBON-STEEL; STAINLESS-STEELS; INHIBITION-ACTIVITY; SULFURIC-ACID; ALUMINUM; BEHAVIOR; PERFORMANCE; EFFICIENCY; BIODIESEL;
D O I：
10.1016/j.desal.2019.01.018
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The influence of cationic surfactant benzethonium chloride (BCCS) on the corrosion resistance of 316L SS in MSF desalination plants during the scales removing by sulfuric acid solution has been studied. The investigations involved electrochemical polarization, weight loss, surface tension, conductivity, surface characterizations and quantum chemical studies. Results confirmed that the cationic surfactant plays a great role in retarding the corrosion 316L SS in 1.0 M H2SO4. The highest efficiency 92.3% is obtained at 3.5 x 10(-4) M of BCCS. The maximum inhibition efficiency is around the critical micelle concentration (CMC) of BCCS. Temkin isotherm describes by high precise the adsorption of BCCS on 316L SS. Polarization curves explained that BCCS is a mixed inhibitor. Theoretical quantum chemistry was utilized to support the effectiveness of BCCS compound.
引用
收藏
页码：32 / 37
页数：6
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