Synergistic effect of 1-(2,5-dioxoimidazolidin-4-yl)urea and Tween-80 towards the corrosion mitigation of mild steel in HCl

2019 ◽  
Vol 43 (35) ◽  
pp. 13899-13910 ◽  
Author(s):  
Weiwei Zhang ◽  
Hui-Jing Li ◽  
Chen Wang ◽  
Li-Juan Wang ◽  
Gen Li ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Mild Steel ◽  
Tween 80 ◽  
Inhibition Effect ◽  
Synergistic Inhibition ◽  
Inhibition Performance ◽  
Synergistic Inhibition Effect ◽  
First Time

The inhibition performance and synergistic inhibition effect of DMU with Tween-80 on the corrosion of mild steel in 1 M HCl was studied for the first time.

The synergistic inhibition effect between imidazoline and the oxide film on L360 steel in CO2/H2S systems

2015 ◽  
Vol 62 (3) ◽  
pp. 143-148 ◽  
Author(s):  
Guohao Chen ◽  
Lingyun Li ◽  
Jian Ouyang ◽  
Zhuoyan Zhu ◽  
Feng Wang ◽  
...  
Keyword(s):  
Oxide Film ◽  
Electrochemical Impedance ◽  
Pipeline Steel ◽  
X Ray Diffraction ◽  
Gas Field ◽  
Content Type ◽  
Inhibition Effect ◽  
Synergistic Inhibition ◽  
Inhibition Performance ◽  
Synergistic Inhibition Effect

Purpose – The aim of the present paper was to investigate the inhibition performance of the OF and/or IM on L360 steel in CO2/H2S environments. The pipeline steel surface usually has been pre-treated before using in the oil/gas field, such as by passivation, blackening, and phosphiding. The effectiveness of inhibition can vary because there are many differences between the metal matrix and the treated film. Design/methodology/approach – Imidazoline (IM) was synthesized by using oleic acid and diethylenetriamine, and its composition was verified using Fourier transform infrared spectroscopy. The oxide film (OF) covering a sample of L360 steel was characterized using X-ray diffraction, and its surface morphology was observed using scanning electron microscope. Electrochemical impedance spectroscopy measurements were conducted to study the inhibition performance of IM- and/or OF-covered L360 steel in the CO2/H2S environments. Findings – The results show that IM and OF can prevent corrosion on L360 steel in CO2/H2S environments, and the synergistic inhibition effect of IM and OF was very evident. A possible model is proposed to explain the synergistic inhibition effect in the CO2/H2S environments of IM and OF on L360 steel. Originality/value – Few reports have concerned the effect of the OF on the inhibitor’s performance, especially in CO2/H2S systems. The aim of the present study was to investigate the inhibition performance of the OF and/or IM on L360 steel in CO2/H2S environments. A model is proposed to explain the synergistic inhibition effect mechanism between IM and OF.

scholarly journals Synergistic inhibition effect on the self-acceleration characteristics in the initial stage of methane/air explosion by CO2 and ultrafine water mist

RSC Advances ◽  
2019 ◽  
Vol 9 (24) ◽  
pp. 13940-13948 ◽  
Author(s):  
Bei Pei ◽  
Shuangming Wei ◽  
Liwei Chen ◽  
Rongkun Pan ◽  
Minggao Yu ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Water Mist ◽  
The Self ◽  
Gas Explosion ◽  
Inhibition Effect ◽  
Synergistic Inhibition ◽  
Spherical Flame ◽  
Initial Stage ◽  
Air Explosion ◽  
Synergistic Inhibition Effect

The synergistic effect of CO2 and ultra-fine water mist can greatly reduce the self-acceleration of the spherical flame in the initial stage of gas explosion.

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