催化超临界水氧化法连续检测水中总有机碳的研究
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- 英文论文题名：Application of catalytic supercritical water oxidation to the detection of total organic carbon
- 论文作者：张辉 ; 陈怡 ; 邓超
- 英文论文作者：Hui Zhang ; Yi Chen ; Chao Deng ; Zhejiang Institute of Metrology
- 年：2016
- 作者机构：浙江省计量科学研究院;
- 论文关键词：水质总有机碳 ; 超临界水氧化法 ; 催化剂 ; 检测
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十六分会：环境化学
- 语种：中文
- 分类号：X703;O643.3
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十六分会 ; 环境化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：2
- 文件大小：143k
- 原文格式：D
- 会议级别：全国
摘要
超临界水氧化法(Supercritical water oxidation,SCWO)是一种废水处理高级氧化技术1。前期研究把SCWO用于水质总有机碳(total organic carbon,TOC)的检测研究2。催化超临界水氧化法(CSCWO)是把催化剂引入到SCWO过程中。本文研究了Cu~(2+)溶液的加入对SCWO法检测TOC的影响。实验选择苯甲酸溶液作为模拟废水,CuSO_4为催化剂。氧化剂为H2O2溶液。氧化剂量用氧化系数(H2O2multiple)表示,是氧化剂实际供应量与理论需要量的比值。研究表明苯甲酸溶液的浓度和红外检测器的信号之间有着很好的线性关系,这表明利用SCWO检测水质TOC的方法是可行的。对比加催化剂和不加催化剂条件下,温度对检测结果的影响,结果如图1所示。在CuSO_4的催化作用下,TOC检测率在380 OC时就达到了最高值,而没有催化剂时该温度下的转化率为35%。这表明催化剂的加入能大大降低反应温度。对比加催化剂和不加催化剂提交下H2O2氧化系数对TOC检测率的影响。结果表明CuSO_4催化剂的加入大大降低了氧化剂的用量。催化剂的加入使得检测条件更加温和,从而使得该检测装置更加可行。
Application of Supercritical water oxidation(SCWO) to the detection of total organic carbon(TOC) has been studied in our previous study.Catalytic supercritical water oxidation(CSCWO) is the improvement of SCWO by introducing catalyst into the reaction system.The introduction of catalyst in this system can moderate the detecting conditions.In this study,Cu~(2+) solution was used to study the influence of the catalyst on detecting of TOC by SCWO.The application of the catalyst greatly influenced the detecting condition of TOC by SCWO method.As to the catalysis system,the detecting temperature reduced from 460°C to 380°C and the H2O2 multiple was also decreased.The successful application of the catalyst moderated the detecting conditions and made the detecting equipment more feasible.
Application of Supercritical water oxidation(SCWO) to the detection of total organic carbon(TOC) has been studied in our previous study.Catalytic supercritical water oxidation(CSCWO) is the improvement of SCWO by introducing catalyst into the reaction system.The introduction of catalyst in this system can moderate the detecting conditions.In this study,Cu~(2+) solution was used to study the influence of the catalyst on detecting of TOC by SCWO.The application of the catalyst greatly influenced the detecting condition of TOC by SCWO method.As to the catalysis system,the detecting temperature reduced from 460°C to 380°C and the H2O2 multiple was also decreased.The successful application of the catalyst moderated the detecting conditions and made the detecting equipment more feasible.
引文
[1]Aki S.N.V.K.;Abraham M.A.Chem.Eng.Sci.1999,54(15-16):3533.
[2]Zhang,H.;Xia,X.Q.;Qiu,Y.,C M Lin and J Yu.Chemical Reaction Engineering and Technology.2011,27(5):467.
[2]Zhang,H.;Xia,X.Q.;Qiu,Y.,C M Lin and J Yu.Chemical Reaction Engineering and Technology.2011,27(5):467.