潘志彦,林春绵,周红艺,杨馗

• 1:浙江工业大学生物与环境工程学院
• 2:浙江工业大学生物与环境工程学院
• 3:浙江工业大学生物与环境工程学院
• 4:浙江工业大学生物与环境工程学院 浙江杭州310032

摘要(Abstract)：

乙酸被认为是含碳氢有机物在超临界水中氧化降解的中间产物,甚至是关键的反应速率控制产物。今对影响超临界水中乙酸氧化降解的因素进行了实验研究,用总有机碳(TOC)含量来表示浓度,用幂指数方程来描述反应速率, 通过多参数曲线拟合, 求得了动力学参数; 反应活化能为144.8kJmol-1, 潜力因子为5.091010,对乙酸TOC浓度的反应级数为1.28, 对氧为0.4。结果表明:超临界水氧化法可以有效地去除水中的乙酸,去除率最高可达99%以上。在实验的条件范围, 氧气过量倍数和温度越高, 乙酸水溶液质量流量越小, 乙酸的降解率也越高。求得的动力学方程能较好地预测实际结果。

关键词(KeyWords)： 超临界水;乙酸;氧化;动力学;降解

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(29677025)

作者(Author): 潘志彦,林春绵,周红艺,杨馗

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