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首页> 外文期刊>International Journal of Electrochemical Science >Modeling the Effect of Piperazine on Carbon Steel Corrosion Rate in Carbonated Activated MDEA Solutions
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Modeling the Effect of Piperazine on Carbon Steel Corrosion Rate in Carbonated Activated MDEA Solutions

机译：模拟哌嗪对碳酸活化MDEA溶液中碳钢腐蚀速率的影响

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A comprehensive model is developed for simulating the rate of corrosion of carbon steel in carbonatedaqueous activated MDEA (Methyl-di-ethanolamine) solutions. The model includes VLE (VaporLiquid Equilibrium) and the electrochemical behavior of amine systems. The VLE model is used topredict the speciation of aqueous carbonated MDEA-PZ solutions and their concentrations, activitycoefficients, and transport properties. The electrochemical model simulates partial oxidation andreduction processes on the surface of carbon steel. The model was capable to predict the effect of PZ(piperazine) concentration on the carbon steel corrosion rate, for carbonated solutions of MDEA/PZblends. The model is executed in a Matlab program that simulates the effect of process operatingconditions such as solution temperature, CO2 loading, solution pH, total amine concentration, and PZconcentration on carbon steel corrosion rates. Results of speciation and corrosion models are in goodagreement with the experimental findings.
机译：建立了一个综合模型，用于模拟碳水活化MDEA（甲基-二乙醇胺）溶液中碳钢的腐蚀速率。该模型包括VLE（VaporLiquid平衡）和胺体系的电化学行为。 VLE模型用于预测碳酸MDEA-PZ水溶液的形态及其浓度，活度系数和传输性质。电化学模型模拟了碳钢表面的部分氧化和还原过程。对于MDEA / PZblends的碳酸盐溶液，该模型能够预测PZ（哌嗪）浓度对碳钢腐蚀速率的影响。该模型在Matlab程序中执行，该程序模拟过程操作条件（例如溶液温度，CO2负载，溶液pH，总胺浓度和PZ浓度）对碳钢腐蚀速率的影响。形态和腐蚀模型的结果与实验结果相吻合。

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