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| 生物柴油对铜的腐蚀特性及动力学研究 |
| Corrosion characteristics and kinetics of copper in biodiesel |
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| DOI： |
| 中文关键词: 小桐子油生物柴油 腐蚀 动力学 |
| 英文关键词:Jatropha curcas L. seed oil biodiesel corrosion kinetics |
| 基金项目: |
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| 中文摘要: |
| 利用失重法研究在室温～90℃范围内，小桐子油生物柴油和柴油混合油样对铜的腐蚀动力学特性，建立相应的腐蚀动力学模型。研究结果表明：随着油样中生物柴油浓度增加和温度升高，铜的腐蚀速率增加，腐蚀规律符合Mathur经验公式，腐蚀速率常数与温度间的关系符合Arrhenius方程，腐蚀动力学方程为v=ke(-3×10-5T2+0.019 6T－2.478 4)c，腐蚀反应的活化能为7.40 kJ/mol，指前因子为0.695 6。生物柴油腐蚀铜的动力学模型为扩大试验和生物柴油应用中的防腐蚀提供理论依据。 |
| 英文摘要: |
| The corrosion characteristics and kinetics of copper in mixture of Jatropha curcas L.seed oil biodiesel and diesel were studied by weight loss method at temperatures between room temperature and 90℃. The corresponding model of corrosion kinetics was established. The results showed that the corrosion rate of copper increased with the concentration of biodiesel in mixture increasing and temperature rising. The corrosion regulation followed Mathur empirical formula, the relationship between corrosion rate constant and temperature accorded with Arrhenius equation, and corrosion kinetics equation was v=ke(-3×10-5T2+0.019 6T－2.478 4)c with 7.40 kJ/mol of the activation energy of the corrosion reaction and 0.695 6 of frequency factor. The corrosion kinetics model of copper in biodiesel provided a theoretical basis for expanding the experiment and anti-corrosion in biodiesel application. |
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