采用溶胶-凝胶法制备了CeO2/TiO2催化剂,对CeO2/TiO2催化剂上NH3选择性催化还原NO反应进行了动力学研究.实验结果表明:NO转化速率与NO成一级反应,与NH3成零级反应,与O2成0.5级反应,反应主要遵循Eley-Rideal机理进行;该反应的活化能为51.2 kJ/mol.
参考文献
| [1] | Laura Casagrande;Luca Lietti;Isabella Nova;Pio Forzatti;Alfons Baiker;Alfons Baiker .SCR of NO by NH_3 over TiO_2-supported V_2O_5-MoO_3 catalysts:reactivity and redox behavior[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,1999(1):63-77. |
| [2] | Malcolm Yates;Juan Antonio Martin;Angeles Martin-Luengo;Silvia Suarez;Jesus Blanco .N_2O formation in the ammonia oxidation and in the SCR process with V_2O_5-WO_3 catalysts[J].Catalysis Today,2005(0):120-125. |
| [3] | Joseph P. Dunn;Harvey G. Stenger Jr.;Israel E. Wachs .Oxidation of SO_2 over Supported Metal Oxide Catalysts[J].Journal of Catalysis,1999(2):233-243. |
| [4] | Gongshin Qi;Ralph T.Yang;Ramsay Chang .MnO_x-CeO_2 mixed oxides prepared by co-precipitation for selective catalytic reduction of NO with NH_3 at low temperatures[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2004(2):93-106. |
| [5] | Liang Chen;Junhua Li;Maofa Ge .Promotional Effect of Ce-doped V2O5-WO3/TiO2 with Low Vanadium Loadings for Selective Catalytic Reduction of NO_x by NH3[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2009(50):21177-21184. |
| [6] | Wenqing Xu;Yunbo Yu;Changbin Zhang .Selective catalytic reduction of NO by NH3 over a Ce/TiO2 catalyst[J].Catalysis Communications,2008(6):1453-1457. |
| [7] | The activity and characterization of CeO_2-TiO_2 catalysts prepared by the sol-gel method for selective catalytic reduction of NO with NH_3[J].Journal of hazardous materials,2010(1/3):734. |
| [8] | Xiang Gao;Ye Jiang;Yincheng Fu .Preparation and characterization of CeO2/TiO2 catalysts for selective catalytic reduction of NO with NH3[J].Catalysis Communications,2010(5):465-469. |
| [9] | Boqiong Jiang;Yue Liu;Zhongbiao Wu .Low-temperature Selective Catalytic Reduction Of No On Mno_x/tio_2 Prepared By Different Methods[J].Journal of hazardous materials,2009(2/3):1249-1254. |
| [10] | Gongshin Qi;Ralph T. Yang .Performance and kinetics study for low-temperature SCR of NO with NH_3 over MnO_x-CeO_2 catalyst[J].Journal of Catalysis,2003(2):434-441. |
| [11] | Zhongbiao Wu;Boqiong Jiang;Yue Liu;Weirong Zhao;Baohong Guan .Experimental study on a low-temperature SCR catalyst based on MnO_x/TiO_2 prepared by sol-gel method[J].Journal of hazardous materials,2007(3):488-494. |
| [12] | Huang HY.;Long RQ.;Yang RT. .Kinetics of selective catalytic reduction of NO with NH3 on Fe-ZSM-5 catalyst[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2002(1/2):241-251. |
| [13] | LIANG CHEN;JUNHUA LI;MAOFA GE .DRIFT Study on Cerium-Tungsten/ Titiania Catalyst for Selective Catalytic Reduction of NO_x with NH3[J].Environmental Science & Technology: ES&T,2010(24):9590-9596. |
| [14] | 闫志勇,高翔,吴杰,姜烨,骆仲泱,倪明江,岑可法.NH3选择性催化还原烟气中NO的反应动力学[J].动力工程,2007(04):601-605,624. |
| [15] | Stevenson SA.;Brooks CF.;Vartuli JC. .Kinetics of the selective catalytic reduction of NO over HZSM-5[J].Journal of Catalysis,2000(2):228-239. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%