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Abstract
The electrochemical behavior of low carbon steel in produced water containing different concentrations of ascorbic acid (AA) has been studied by potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) measurements and confirmed by surface examination via scanning electron microscope (SEM). The results of EIS and polarization data showed that the corrosion rate of the steel decreases by increasing both the concentration of AA (0.01-0.1M) and temperature under study (303-333K). The maximum efficiency was obtained (88%) in 0.1M AA at 333K. Thermodynamic parameters indicate that the adsorption of AA on low carbon steel followed both physical as well as chemical adsorption mechanisms. Effect of Addition of chitosan, cerium and silane to 0.01M AA were also studied. The experimental results reveal that chitosan gives maximum efficiency, then silane and the lowest one is cerium