| 电场效应与催化湿式氧化协同作用研究 |
| 摘要点击 2762 全文点击 2347 投稿时间：2008-10-17 修订日期：2008-12-29 |
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| 中文关键词 催化湿式氧化 电催化氧化 协同作用 |
| 英文关键词 catalytic wet oxidation electro-chemical oxidation synergy |
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| 中文摘要 |
| 在自行研制开发的一套固定床和复合三维电场一体化连续式催化湿式氧化反应器中，采用浸渍法制备的Mn-Sn-Sb-3/γ-Al2O3催化剂，实验研究了苯酚催化湿式氧化、电催化氧化以及电场效应下的催化湿式氧化过程的行为.结果表明，一体化反应器在较低反应温度（t=130℃）和氧分压（PO2=1.0 MPa）下即可获得相当满意的处理效果，空时仅为27 min时苯酚和TOC的去除率就分别可达到94.0%和88.4%.电场效应下的催化湿式氧化协同降解苯酚的反应速率常数大于单独电催化或催化湿式氧化降解苯酚的反应速率常数，而且还大大超过两者之和，电催化氧化对催化湿式氧化工艺存在明显的协同增效作用. |
| 英文摘要 |
| A new catalytic wet oxidation fixed-bed reactor combined with three-dimensional electric-field was developed to investigate catalytic wet oxidation, electrochemical oxidation and electroassisted catalytic wet oxidation of the solution containing phenol in the presence of a catalyst Mn-Sn-Sb-3/γ-Al2O3. Good electroassisted catalytic wet oxidation efficiency was obtained in the setup for the combination system even at mild conditions (t=130℃, PO2=1.0 MPa) that the phenol conversion and TOC reduction were up to 94.0% and 88.4% after 27 min treatment, respectively. The result also shows that the rate constants of electroassisted catalytic wet oxidation are much higher than that of not only both catalytic wet oxidation and electrochemical oxidation process alone but also additive efficiencies of catalytic wet oxidation and electrochemical oxidation processes, which indicates an apparent synergetic effect between CWO and ECO processes. |
