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浙江大学学报(工学版)
能源与机械工程     
新型CeO2-V2O5/TiO2-SiO2催化剂高效抗碱金属中毒性能
鲍强, 周昊, 刘建成, 朱国栋, 时伟, 岑可法
浙江大学 能源清洁利用国家重点实验室,浙江 杭州310027
Promotional effect and alkali resistant performance of novel CeO2-V2O5/TiO2-SiO2 catalyst
BAO Qiang, ZHOU Hao, LIU Jian cheng, ZHU Guo dong, SHI Wei, CEN Ke fa
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
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摘要:
试验采用SiO2和CeO2对V2O5/TiO2催化剂进行改性并进行催化性能研究,找到了一种最佳比例的Ce10VTiSi0.3催化剂.结果表明,新型的Ce10VTiSi0.3催化剂可以使温度窗口扩大到200~400 ℃,转化率提高18.54%,具有优秀的抗碱金属中毒性能.改性催化剂可以降低N2O的生成,提高N2的选择性,同时具有较好的抗SO2和抗H2O性能.通过N2-BET、Py-IR等技术手段对催化剂进行表征.结果表明,SiO2和CeO2的加入会使得催化剂的比表面积得到明显的提高,平均粒径下降,孔容积增多.利用吡啶吸附原位红外光谱法进行研究后发现,改性催化剂具有丰富的B酸和L酸,更有利于NH3在催化剂表面的吸附以及表面的氧化还原反应.
Abstract:
The effect of the additive CeO2 and SiO2 on V2O5/TiO2 catalyst for the selective catalytic reduction of NOx with NH3 was investigated. Ce10VTiSi0.3 has the best proportion of CeO2 and SiO2 and exhibits an excellent SCR performance. The temperature window was broaden to 200 400 ℃. The NO conversion got a 18.54% improvement and the alkali poisoning resistance ability was largely enhanced. A lower production of N2O was obtained on Ce10VTiSi0.3 which improved N2 selectivity. The modified catalyst displayed an excellent ability over the resistance of SO2 and H2O. The catalysts were characterized by using N2-BET and Py-IR
methods. The surface area was largely increased with the addition of CeO2 and SiO2. The Py-IR results show that the revised catalysts get abundant amount of BrΦnsted acid and Lewis acid, which are positive for the adsorption of NH3 and the redox on the surface.
出版日期: 2015-10-29
:  X 511  
基金资助:

国家“973”重点基础研究发展规划资助项目(2015CB251501).

通讯作者: 周昊, 男, 教授. ORCID: 0000 0001 9779 7703.     E-mail: zhouhao@zju.edu.cn
作者简介: 鲍强(1989—), 男, 硕士, 从事电厂烟气中氮氧化物脱除的研究. ORCID: 0000 0001 6756 8563. E-mail: baoq1225@163.com
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引用本文:

鲍强, 周昊, 刘建成, 朱国栋, 时伟, 岑可法.

新型CeO2-V2O5/TiO2-SiO2催化剂高效抗碱金属中毒性能
[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008 973X.2015.10.005.

BAO Qiang, ZHOU Hao, LIU Jian cheng, ZHU Guo dong, SHI Wei, CEN Ke fa. Promotional effect and alkali resistant performance of novel CeO2-V2O5/TiO2-SiO2 catalyst. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008 973X.2015.10.005.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008 973X.2015.10.005        http://www.zjujournals.com/eng/CN/Y2015/V49/I10/1855

[1] NAKAJIMA F, HAMADA I. The state of the art technology of NOx control [J]. Catalysis Today, 1996, 29(1): 109-115.
[2] AMIRIDIS M D, DUEVEL R V, WACHS I E. The effect of metal oxide additives on the activity of V2O5/TiO2 catalysts for the selective catalytic reduction of nitric oxide by ammonia [J]. Applied Catalysis B: Environmental, 1999, 20(2): 111-122.
[3] GIAKOUMELOU I, FOUNTZOULA C, KORDULIS C, et al. Molecular structure and catalytic activity of V2O5/TiO2 catalysts for the SCR of NO by NH3∶In situ Raman spectra in the presence of O2, NH3, NO, H2, H2O, and SO2 [J]. Journal of Catalysis, 2006, 239(1): 1-12.
[4] NICOSIA D, CZEKAJ I, KROCHER O. Chemical deactivation of V2O5/WO3 TiO2 SCR catalysts by additives and impurities from fuels lubrication oils and urea solution——Part II. Characterization study of the effect of alkali and alkaline earth metals [J]. Applied Catalysis B: Environmental, 2008, 77(3/4): 228-236.
[5] TANG F S, XU B L, SHI H H, et al. The poisoning effect of Na+ and Ca2+ ions doped on the V2O5/TiO2 catalysts for selective catalytic reduction of NO by NH3 [J]. Applied Catalysis B: Environmental, 2010, 94(1/2): 71-76.
[6] CHEN L, LI J, GE M. The poisoning effect of alkali metals doping over nano V2O5 WO3/TiO2 catalysts on selective catalytic reduction of NOx by NH3 [J]. Chemical Engineering Journal, 2011, 170(2): 531-537.
[7] QI G, YANG R T. Performance and kinetics study for low temperature SCR of NO with NH3 over MnOx CeO2 catalyst [J]. Journal of Catalysis, 2003, 217(2): 434-441.
[8] LONG R Q, YANG R T. The promoting role of rare earth oxides on Fe exchanged TiO2 pillared clay for selective catalytic reduction of nitric oxide by ammonia [J]. Applied Catalysis B: Environmental, 2000, 7(2): 87-95.
[9] GAO X, JIANG Y, FU Y, et al. Preparation and characterization of CeO2/TiO2catalysts for selective catalytic reduction of NO with NH3 [J]. Catalysis Communications, 2010, 11(5): 465-469.
[10] PENG Y, LI J, SHI W, et al. Design strategies for development of SCR catalyst: improvement of alkali poisoning resistance and novel regeneration method [J]. Environmental Science and Technology, 2012, 46(22): 12623-12629.
[11] PAN Y, ZHAO W, ZHONG Q, et al. Promotional effect of Si doped V2O5/TiO2 for selective catalytic reduction of NOx by NH3 [J]. Journal of Environmental Sciences, 2013, 25(8): 1703-1711.
[12] PENG Y, LIU C, ZHANG X, et al. The effect of SiO2 on a novel CeO2 WO3/TiO2 catalyst for the selective catalytic reduction of NO with NH3 [J]. Applied Catalysis B: Environmental, 2013, 140(2): 276-282.
[13] LIU C, CHEN L, LI J, et al. Enhancement of activity and sulfur resistance of CeO2 supported on TiO2 SiO2 for the selective catalytic reduction of NO by NH3 [J]. Environmental Science and Technology, 2012, 46(11): 6182-6189.
[14] XU W, YU Y, ZHANG C, et al. Selective catalytic reduction of NO by NH3 over a Ce/TiO2 catalyst [J]. Catalysis Communications, 2008, 9(6): 1453-1457.
[15] CHEN L, LI J, GE M. Promotional effect of Ce doped V2O5 WO3/TiO2 with low vanadium loadings for selective catalytic reduction of NOx by NH3 [J]. The Journal of Physical Chemistry C, 2009, 113(50): 21177-21184.
[16] 胡石磊,叶代启,付名利.V2O5/TiO2 SiO2表面酸性对选择性催化还原NO及抗碱金属性能的影响[J].无机化学学报,2008,24(7):11131118.HU Shi lei,YE Dai qi,FU Ming li.Effect of surface acidity on NO reduction and resistance towards alkali poisoning over V2O5/TiO2 SiO2 [J]. Chinese Journal of Inorganic Chemistry, 2008,24(7):1113-1118.
[17] 胡石磊,叶代启.钾对催化剂选择性催化还原氮氧化物的性能影响特性研究[J].环境污染与防治, 2008,30(7): 4346.HU Shi lei,YE Dai qi.Effect of potassium on the selective reduction of NO by NH3 on V2O5 catalysts [J].Environmental Pollution and Control, 2008,30(7): 43-46.
[18] 沈伯雄,马摇娟.SiO2改性的V2O5 MoO3/TiO2催化剂抗碱中毒性能研究[J].燃料化学学报,2012,40(12):247251.SHEN Bo xiong,MA Yao juan.Alkali resistant performance of V2O5 MoO3/TiO2 catalyst modified by SiO2 [J].Journal of Fuel Chemistry and Technology, 2012,40(12):247-251.
[19] MOTONOBU K, RYOJI K, SINYUKI M, et al. TiO2 SiO2 and V2O5/TiO2 SiO2 catalyst: physico chemical characteristics and catalytic behavior in selective catalytic reduction of NO by NH3 [J]. Applied Catalysis B: Environmental, 2005, 60(3/4): 173-179.
[20] 朱玉霞,林伟,田辉平,等.固体酸催化剂酸性分析方法的研究进展[J].石油化工,2006,35(7):607617.ZHU Yu xia,LIN Wei,TIAN Hui ping,et al.Advances in acidity characterization of solid acid catalysts [J].Petrochemical Technology, 2006,35(7):607-617.
[21] PARRY E P. An infrared study of pyridine adsorbed on acidic solids. characterization of surface acidity [J]. Journal of Catalysis, 1963, 2(5): 371-379.
[22] TOPSPE N Y, TOPSOE H, DUMESIC J A. Vanadia/titania catalysts for selective catalytic reduction (SCR) of nitric oxide by ammonia I. combined temperature programmed in situ FTIR and on line mass spectroscopy studies [J]. Journal of Catalysis, 1995, 151(1): 226-240.
[23] TOPSOE N Y, DUMESIC J A, TOPSOE H. Vanadia titania catalysts for selective catalytic reduction ofnitric oxide by ammonia II studies of active sites and formulation of catalytic cycles [J]. Journal of Catalysis, 1995, 151(1): 241-252.
[24] REICHE M A, ORTELLI E, BAIKER A. Vanadia grafted on TiO2 SiO2, TiO2 and SiO2 aerogels: structural properties and catalytic behavior in selective reduction of NO by NH3[J]. Applied Catalysis B: Environmental, 1999, 23(2/3): 187-203.
[25] 杜振,付银成,朱跃.V2O5/TiO2催化剂中毒机理的试验研究[J].环境科学学报, 2013,33(1): 216223.DU Zhen,FU Yin cheng, ZHU Yue. Study of poisoning mechanism for V2O5/TiO2 catalyst [J]. Acta Scientiae Circumstantiae, 2013, 33(1): 216-223.
[26] 姜烨,高翔,吴卫红.H2O 和SO2 对V2O5/TiO2 催化剂选择性催化还原烟气脱硝性能的影响[J].中国电机工程学报, 2013,33(20): 2833.JIANG Ye,GAO Xiang,WU Wei hong.Effects of H2O and SO2 on the performance of V2O5/TiO2 catalysts for selective catalytic reduction of NO in flue gas [J].Proceedings of the CSEE, 2013,33(20): 28-33.
[27] CHEN J P, YANG R T. Selective catalytic reduction of NO with NH3 on SO2-4/TiO2 superacid catalyst [J]. Journal of Catalysis, 1993, 139(1): 277-288.
[28] GAO S, CHEN X, WANG H, et al. Ceria supported on sulfated zirconia as a superacid catalyst for selective catalytic reduction of NO with NH3 [J]. Journal of Colloid and Interface Science, 2013, 394(1): 515-521.
[29] GAO S, WANG P, CHEN X, et al. Enhanced alkali resistance of CeO2/SO2 4 ZrO2 catalyst in selective catalytic reduction of NOx by ammonia [J]. Catalysis Communications, 2014, 43(2): 223-226.
[30] TURCO M, LISI L, PIRONE R, et al. Effect of water on the kinetics of nitric oxide reduction over a high surface area V2O5/TiO2 catalyst [J]. Applied Catalysis B: Environmental, 1994, 3(2/3): 133-149.
[31] AMIRIDIS M D, WACHS I E, DEO G, et al. Reactivity of V2O5 catalysts for the selective catalytic reduction of NO by NH3: influence of vanadia loading, H2O, and SO2 [J]. Journal of Catalysis, 1996, 161(1): 247-253.

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