ADSORPTION BEHAVIOR OF IMIDAZOLINE INHIBITOR ON CARBON STEEL IN CO2 SATURATED NaCl SOLUTION

J Chin Soc Corr Pro

2011, Vol. 31

Issue (4): 305-308 DOI:

Research Articles

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ADSORPTION BEHAVIOR OF IMIDAZOLINE INHIBITOR ON CARBON STEEL IN CO₂ SATURATED NaCl SOLUTION

AI Junzhe¹ MEI Ping¹, GUO Xingpeng²

1. College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023
2. Department of Chemistry, Huazhong University of Science and Technology, Wuhan 430074

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Abstract Adsorption behavior of an imidazoline inhibitor (MA) on carbon steel in CO₂ saturated 1% NaCl solution is studied by potentiodynamic polarization curves. The thermodynamic parameters are calculated and the adsorption isotherm is also discussed. The results show that MA is of mixed adsorption and its inhibition efficiencies increased with the increasing of MA concentration and decreased with the increasing of temperature. The adsorption of MA meets the El-Awady thermodynamic kinetic model, and is in line with the Flory-Huggins isotherm.

Key words: carbon dioxide imidazoline inhibitor inhibition efficiency adsorption

Received: 17 May 2010

ZTFLH:

TG174.42

Corresponding Authors: AI Junzhe E-mail: aajzz@163.com

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AI Junzhe, MEI Ping, GUO Xingpeng. ADSORPTION BEHAVIOR OF IMIDAZOLINE INHIBITOR ON CARBON STEEL IN CO₂ SATURATED NaCl SOLUTION. J Chin Soc Corr Pro, 2011, 31(4): 305-308.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2011/V31/I4/305

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