| 微波焙烧法与马弗炉焙烧法处理废脱硝催化剂的效果比较 |
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| 引用本文： | 李文军,许腾飞,刘雪松,吴晓东,翁端,陈吕军. 微波焙烧法与马弗炉焙烧法处理废脱硝催化剂的效果比较[J]. 化工环保, 2017, 36(5): 572-575. DOI: 10.3969/j.issn.1006-1878.2017.05.015 |
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| 作者姓名： | 李文军 许腾飞 刘雪松 吴晓东 翁端 陈吕军 |
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| 作者单位： | 1. 清华大学 环境学院,北京 100084;2. 清华大学 材料学院先进材料教育部重点实验室,北京 100084 |
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| 摘 要： | 用Na_2CO_3作为助溶剂、Na_2O_2作为消解剂,采用微波焙烧法和马弗炉焙烧法消解处理废钒钨钛脱硝催化剂。通过XRF、BET、XRD和NH_3-TPD技术对两种消解方法制得的钛钨粉样品进行了表征。表征结果显示,与马弗炉焙烧法相比,微波焙烧法得到的钛钨粉纯度更高,TiO_2与WO_3含量之和大于96.7%(w),且该钛钨粉还具有更高的比表面积和酸性,可以作为钒钨钛脱硝催化剂的生产原料再利用。
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| 关 键 词： | 废脱硝催化剂 钛钨粉 微波焙烧 马弗炉焙烧 消解 |
| 收稿时间： | 2017-02-03 |
Effect comparison of microwave heating and muffle heating on treatment of spent SCR catalyst |
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| Li Wenjun,Xu Tengfei,Liu Xuesong,Wu Xiaodong,Weng Duan,Chen L,#xfc,Jun. Effect comparison of microwave heating and muffle heating on treatment of spent SCR catalyst[J]. Environmental Protection of Chemical Industry, 2017, 36(5): 572-575. DOI: 10.3969/j.issn.1006-1878.2017.05.015 |
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| Authors: | Li Wenjun Xu Tengfei Liu Xuesong Wu Xiaodong Weng Duan Chen Lü Jun |
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| Affiliation: | 1. School of Environment,Tsinghua University,Beijing 100084,China;2. Key Laboratory of Advanced Materials,Ministry of Education,School of materials,Tsinghua University,Beijing 100084,China |
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| Abstract: | Using Na2CO3 as cosolvent and Na2O2 as digestion solvent,the spent SCR catalyst containing vanadium,tungsten and titanium was treated by microwave heating method and muffle heating method respectively. The titanium-tungsten powders prepared by the two methods were characterized by XRF,BET,XRD and NH3-TPD. The characterization results showed that the purity of the titanium-tungsten powders prepared by microwave heating method are higher than that by muffle heating method with over 96.7%（w）of the sum of content of TiO2 and WO3,and the powders has higher specific surface area and stronger acidity. The titanium-tungsten powders prepared by microwave heating method can be used as raw material for SCR catalyst production. |
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| Keywords: | spent SCR catalyst titanium-tungsten powder microwave heating muffle heating digestion |
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