摘要
通过浸渍法制备一种负载型磷钨酸铜催化剂Cu-HPW/TiO2-ZrO2,并将其用于催化湿式氧化处理煤气化生产废水。采用XRD、BET手段对催化剂进行了表征,结果表明该催化剂结构稳定、比表面积大。通过催化湿式氧化实验,得到磷钨酸最佳负载量为50%,反应的最佳条件为反应温度220℃,催化剂用量8g/L,氧分压2 MPa,pH9,COD去除率均保持在95%以上,表明该催化剂具有较好的催化活性。
A supported copper phosphotungstate catalyst Cu-HPW/TiO 2-ZrO 2 was prepared by the impregnation method and used for catalytic wet oxidation treatment of coal gasification wastewater.The catalysts were characterized by XRD and BET which results show that the catalysts have stable structure and large specific surface area.By catalytic wet oxidation experiments,the optimal load of phosphotungstic acid was 50%,and the optimal conditions for the reaction were as follows:reaction temperature of 220°C,catalyst amount of 8g/L,oxygen pressure of 2 MPa,pH 9.The COD removal rate was maintained above 95%indicating that the catalyst has good reactivity.
作者
王伟
赵选英
杨峰
周腾腾
戴建军
Wang Wei;Zhao Xuanying;Yang Feng;Zhou Tengteng;Dai Jianjun(Jiangsu Nanda-Huaxing Science and Technology of Environmental Protection Co.,Ltd.,Yancheng224001,China;Nanjing University&Yancheng Academy of Environmental Protection Technology and Engineering,Yancheng224001 China)
出处
《山东化工》
CAS
2020年第4期250-253,共4页
Shandong Chemical Industry
基金
水体污染控制与治理科技重大专项(2018ZX07402005-04)。
关键词
煤气化废水
催化湿式氧化
磷钨酸
催化剂
coal-gasification wastewater
catalytic wet oxidation
phosphotungstic acid
catalyst
