Effects of H<sub>2</sub>O and SO<sub>2 </sub>on a Ce(1)Mn(3)Ti catalyst for NO catalytic oxidation

LI Xiao-hai; ZHANG Shu-le; JIA Yong; ZHONG Qin

Volume 40 Issue 07

Jul. 2012

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LI Xiao-hai, ZHANG Shu-le, JIA Yong, ZHONG Qin. Effects of H2O and SO2 on a Ce(1)Mn(3)Ti catalyst for NO catalytic oxidation[J]. Journal of Fuel Chemistry and Technology, 2012, 40(07): 866-871.

Citation:

LI Xiao-hai, ZHANG Shu-le, JIA Yong, ZHONG Qin. Effects of H₂O and SO₂on a Ce(1)Mn(3)Ti catalyst for NO catalytic oxidation[J]. Journal of Fuel Chemistry and Technology, 2012, 40(07): 866-871.

LI Xiao-hai, ZHANG Shu-le, JIA Yong, ZHONG Qin. Effects of H2O and SO2 on a Ce(1)Mn(3)Ti catalyst for NO catalytic oxidation[J]. Journal of Fuel Chemistry and Technology, 2012, 40(07): 866-871.

Citation:

LI Xiao-hai, ZHANG Shu-le, JIA Yong, ZHONG Qin. Effects of H₂O and SO₂on a Ce(1)Mn(3)Ti catalyst for NO catalytic oxidation[J]. Journal of Fuel Chemistry and Technology, 2012, 40(07): 866-871.

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Effects of H₂O and SO₂on a Ce(1)Mn(3)Ti catalyst for NO catalytic oxidation

1.
School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
2.
Datang Nanjing Environmental Protection Technology Co., Ltd, Nanjing 211100, China

Received Date: 2011-10-24
Rev Recd Date: 2011-12-09
Publish Date: 2012-07-31

Abstract

Abstract

In order to improve the activity of catalytic oxidation of NO over MnO_x/TiO₂,a certain amount of cerium nitrate was doped into the catalyst while the MnO_x/TiO₂ catalyst was prepared by impregnation on TiO₂.Ce(1)Mn(3)Ti catalyst was characterized,using XRD,BET and XPS.At the same time,the effects of H₂O and SO₂ on catalytic oxidation of NO were investigated.The deactivation mechanisms in the presence of H₂O and SO₂ were analyzed by FT-IR,SEM and BET.The results showed that Ce(1)Mn(3)Ti yielded a 58% NO conversion at 200℃,and 85% at 250℃ when the space velocity was 41 000 h^-1,O₂ and NO concentrations were 10% and 300×10^-6respectively.The activity of catalyst declined in the presence of only 4% H₂O but this negative effect could be counteracted by increasing the reaction temperature.After in the presence of 4%H₂O and 100×10^-6 SO₂ together,NO conversion was maintained at 48%.The activity of the deactivated catalyst could recover to 61% after removing H₂O and SO₂.H₂O and SO₂ make catalyst deactivation because of the active component has been sulfuric acid stalinization.
- NO,
- catalytic oxidation,
- sulfur resistance and water resistance,
- Ce doped MnO_x/TiO₂

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References(22)

References

钟秦. 燃煤烟气脱硫脱硝技术及工程实例 [M]. 2版. 北京:化学工业出版社, 2007: 1-7. (ZHONG Qin. The technology and application of coal fired flue gas desulfurization and denitrification [M]. 2^nd ed. Beijing: Chemical Industry Press, 2007: 1-7.)

郑足红, 童华, 童志权, 黄妍, 罗晶. Mn-V-Ce/TiO₂低温催化还原NO性能研究[J]. 燃料化学学报, 2010, 38(3): 343-351. (ZHENG Zu-hong, TONG Hua, TONG Zhi-quan, HUANG Yan, LUO Jing. Catalytic reduction of NO over Mn-V-Ce/TiO₂ catalysts at low reaction temperature[J]. Journal of Fuel Chemistry and Technology, 2010, 38(3): 343-351.)

王智化, 周俊虎, 魏林生, 温正城, 岑可法. 用臭氧氧化技术同时脱除锅炉烟气中NO_X及SO₂的试验研究[J]. 中国电机工程学报, 2007, 27(11): 1-5. (WANG Zhi-hua, ZHOU Jun-hu, WEI Lin-sheng, WEN Zheng-cheng, CEN Ke-fa. Experimental research for the simultaneous removal of NO_X and SO₂ in flue gas by O₃ [J]. Proceedings of the CSEE, 2007, 27(11): 1-5.)

鲁文质, 赵秀阁, 王辉, 肖文德. NO的催化氧化[J]. 催化学报, 2000, 21(5): 424-427. (LU Wen-zhi, ZHAO Xiu-ge, WANG Hui, XIAO Wen-de. Catalytic oxidation of NO[J]. Chinese Journal of Catalysis, 2000, 21(5): 424-427.)

JAZAER D, MAGNUS S, ERIK F. The effect of metal oxide additives (WO₃, MoO₃, V₂O₅, Ga₂O₃) on the oxidation of NO and SO₂ over Pt/Al₂O₃ and Pt/BaO/Al₂O₃ catalysts[J]. J Mol Catal A, 2008, 209(1/2): 215-225.

李平, 卢冠忠. SO₂对NO催化氧化过程的影响: (Ⅴ)NiO/γ-Al₂O₃上SO₂的作用机理[J]. 化学学报, 2003, 61(5): 660-665. (LI Ping, LU Guan-zhong. Effect of SO₂ on NO catalytic: V Mechanism of SO₂ promotion over NiO/γ-Al₂O₃[J]. Acta Chimica Sinica, 2003, 61(5): 660~665.)

李平, 赵越, 卢冠忠, 赵秀阁, 鲁文质, 肖文德. SO₂对NO催化氧化过程的影响: (Ⅱ)载体γ-Al₂O₃与SO₂的相互作用[J]. 高校化学学报, 2001, 22(12): 2072-2076. (LI Ping, ZHAO Yue, LU Guan-zhong, ZHAO Xiu-ge, LU Wen-zhi, XIAO Wen-de. Effect of SO₂ on NO catalytic oxidation: (Ⅱ) Interaction betweenγ-Al₂O₃ support and SO₂[J]. Chemical Research in Chinese Universities, 2001, 22(12): 2072-2076.)

李平, 卢冠忠, 赵秀阁, 肖文德. 用TPD研究SO₂对NO催化氧化过程的影响[J]. 催化学报, 2003, 24(9): 681-686. (LI Ping, LU Guan-zhong, ZHAO Xiu-ge, XIAO Wen-de. Effect of SO₂ on NO catalytic oxidation studied by TPD method[J]. Chinese Journal of Catalysis, 2003, 24(9): 681-686.)

赵秀阁, 王辉, 肖文德, 王军. SO₂对Co₃O₄/Al₂O₃选择性催化氧化NO的影响[J]. 催化学报, 2000, 21(3): 239-242. (ZHAO Xiu-ge, WANG Hui, XIAO Wen-de, WANG Jun. Effect of SO₂ on catalytic oxidation of NO over Co₃O₄/Al₂O₃[J]. Chinese Journal of Catalysis, 2000, 21(3): 239-242.)

罗晶, 童志权, 黄妍, 夏斌, 罗河. H₂O和SO₂对Cr-Ce/TiO₂催化氧化NO性能的影响[J]. 环境科学学报, 2010, 30(5): 1023-1029. (LUO Jing, TONG Zhi-quan, HUANG Yan, XIA Bin, LUO He. Effects of H₂O and SO₂ on a Cr-Ce/TiO₂ catalyst for NO catalytic oxidation[J]. Acta Scientiae Circumstantiae, 2010, 30(5): 1023-1029.)

TANG N, LIU Y, WANG H, WU Z. Mechanism study of NO catalytic oxidation over MnOx/TiO₂ Catalysts[J]. J Phys Chem C, 2011, 115(16): 8214-8220.

WU Z, JIN R, WANG H, LIU Y. Effect of ceria doping on SO₂ resistance of Mn/TiO₂ for selective catalytic reduction of NO with NH₃ at low temperature[J]. Catal Commun, 2009, 10(6): 935-939.

YUNG M M, HOLMGREEN E M, OZKAN U S. Cobalt based catalysts supported on titania and zircon for the oxidation of nitric oxide to nitrogen dioxide[J]. J Catal, 2007, 247(2): 356-367.

楼莉萍, 蒋晓原, 陈英旭, 郑小明. CuO/TiO₂的制备及对NO+CO反应性能的研究[J]. 燃料化学学报, 2003, 31(5): 490-495. (LOU Li-ping, JIANG Xiao-yuan, CHEN Ying-xu, ZHENG Xiao-ming. Studies on preparation of CuO/TiO₂ and catalytic activities for NO+CO reaction[J]. Journal of Fuel Chemistry and Technology, 2003, 31(5): 490-495.)

WU Z, TANG N, XIAO L, LIU Y, WANG H. MnO_X/TiO₂ composite nanoxides synthesized by deposition precipitation method as a superior catalyst for NO oxidation[J]. J Colloid Interface Sci, 2010, 352(1): 143-148.

HUANG Z, LIU Z, ZHANG X, LIU Q. Inhibition effect of H₂O on V₂O₅/AC catalyst for catalytic reduction of NO with NH₃ at low temperature[J]. Appl Catal B, 2006, 63(3/4): 260-265.

MARBÁN G, ANTUNA R, FUERTES A B. Low-temperature SCR of NO_X with NH₃ over activated carbon fiber composite-supported metal oxides[J]. Appl Catal B, 2003, 41(3): 323-338.

ODENBRAND C U I, GABRIELSSON P L T, BRANDIN J G M, ANDERSSON L A H. Effect of water vapor on the selectivity in the reduction of nitric oxide with ammonia over vanadia supported on silica-titania[J]. Appl Catal, 1991, 78(1): 109-122.

SREEKANTH P M, PENЁ D A, SMIRNIOTIS P G. Titania supported bimetallic transition metal oxides for low temperature SCR of NO with NH₃[J]. Ind Eng Chem Res, 2006, 45(19): 6444-6449.

MORALES M R, BARBERO B P, LOPEZ T, CADÚS L E. Evaluation and characterization of Mn-Cu mixed catalysts supported on TiO₂ and ZrO₂ for ethanol total oxidation[J]. Fuel, 2009, 88(11): 2122-2129.

IVANOVA T, HARIZANOVA A. Characterization of TiO₂ and TiO₂-MnO oxides prepared by sol-gel method[J]. Solid State Ion, 2001, 138(3/4): 227-232.

HUANG Y, GAO D, TONG Z, ZHUANG J, LUO H. Oxidation of NO over cobalt oxide supported on mesoporous silica[J]. J Nat Gas Chem, 2009, 18(4): 421-428.

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