低温脱硝催化剂抗水性研究进展
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摘要
目前,低温脱硝催化剂的实验室研究已经相对成熟,但是实际工业烟气中一般含有一定含量的H_2O,其对于催化剂的毒害作用是限制该技术工业化应用的一个瓶颈。本文分析了催化剂的"H_2O中毒"机理,并且提出了改进的方法,从添加不同的助剂以及改变形貌来展开描述。最后,文章对脱硝催化剂未来的研究方向和应用前景进行了展望。
At present, the laboratory research of low-temperature denitrification catalyst has been relatively mature, but the actual industrial smoke generally contains a certain amount of H_2O, and its toxic effect on the catalyst is a bottleneck restricting the industrial application of this technology.In this paper, the mechanism of "H_2O poisoning" of the catalyst was analyzed, and an improved method was proposed to describe it by adding different additives and changing the morphology.Finally, the future research direction and application prospect of denitration catalyst are prospected.
At present, the laboratory research of low-temperature denitrification catalyst has been relatively mature, but the actual industrial smoke generally contains a certain amount of H_2O, and its toxic effect on the catalyst is a bottleneck restricting the industrial application of this technology.In this paper, the mechanism of "H_2O poisoning" of the catalyst was analyzed, and an improved method was proposed to describe it by adding different additives and changing the morphology.Finally, the future research direction and application prospect of denitration catalyst are prospected.
引文
[1] BP世界能源统计年鉴[M].北京:中国统计出版社,2017.
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[3]甘丽娜,低温V2O5-WO3/TiO2脱硝催化剂开发与应用研究[D].北京:中国科学院研究生院,2016.
[4] Huang ZG,et al.Inhibition effect of H2O on V2O5/AC catalyst for catalytic reduction of NO with NH3 at low temperature[J].Applied Catalysis B-Environmental,2006,63(3-4):260-265.
[5] Casapu,MO,Kroecher,et al.Screening of doped MnOx-CeO2 catalysts for low-templerature NO-SCR[J].Applied Catalysis B-Environmental,2009,88(3-4):413-419.
[6] Du,X,et al.Experimental and theoretical studies on the influence of water vapor on the performance of a Ce-Cu-Ti oxide SCR catalyst[J].Applied Surface Science,2013,270:370-376.
[7] Kang,M,et al.Cu-Mn mixed oxides for low temperature NO reduction with NH3[J].Catalysis Today,2006,111(3-4):236-241.
[8] Li,Y,et al.Novel hollow microspheres MnxCo3-XO4 (x=1,2) with remarkable performance for low-temperature selective catalytic reduction of NO with NH3[J].Journal of Sol-Gel Science and Technology,2017,81(2):576-585.
[2] Heck,R.M.,et al.Catalytic abatement of nitrogen oxides-stationary applications[J].Catalysis Today,1999,53(4):519-523.
[3]甘丽娜,低温V2O5-WO3/TiO2脱硝催化剂开发与应用研究[D].北京:中国科学院研究生院,2016.
[4] Huang ZG,et al.Inhibition effect of H2O on V2O5/AC catalyst for catalytic reduction of NO with NH3 at low temperature[J].Applied Catalysis B-Environmental,2006,63(3-4):260-265.
[5] Casapu,MO,Kroecher,et al.Screening of doped MnOx-CeO2 catalysts for low-templerature NO-SCR[J].Applied Catalysis B-Environmental,2009,88(3-4):413-419.
[6] Du,X,et al.Experimental and theoretical studies on the influence of water vapor on the performance of a Ce-Cu-Ti oxide SCR catalyst[J].Applied Surface Science,2013,270:370-376.
[7] Kang,M,et al.Cu-Mn mixed oxides for low temperature NO reduction with NH3[J].Catalysis Today,2006,111(3-4):236-241.
[8] Li,Y,et al.Novel hollow microspheres MnxCo3-XO4 (x=1,2) with remarkable performance for low-temperature selective catalytic reduction of NO with NH3[J].Journal of Sol-Gel Science and Technology,2017,81(2):576-585.