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CuO-WO3/TiO2催化剂制备方法对NH3-SCR脱硝性能的影响

刘海岩,  李冬,  苗雪,  朱元元,  刘小峰,  吕莹,  李杰,  吴萍霞,  彭悦,  陈建军,  李俊华

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文章导航 > 环境工程  > 2020 >  38(5): 89-95
刘海岩, 李冬, 苗雪, 朱元元, 刘小峰, 吕莹, 李杰, 吴萍霞, 彭悦, 陈建军, 李俊华. CuO-WO3/TiO2催化剂制备方法对NH3-SCR脱硝性能的影响[J]. 环境工程, 2020, 38(5): 89-95. doi: 10.13205/j.hjgc.202005016
引用本文: 刘海岩, 李冬, 苗雪, 朱元元, 刘小峰, 吕莹, 李杰, 吴萍霞, 彭悦, 陈建军, 李俊华. CuO-WO3/TiO2催化剂制备方法对NH3-SCR脱硝性能的影响[J]. 环境工程, 2020, 38(5): 89-95. doi: 10.13205/j.hjgc.202005016
shu
LIU Hai-yan, LI Dong, MIAO Xue, ZHU Yuan-yuan, LIU Xiao-feng, LV Ying, LI Jie, WU Ping-xia, PENG Yue, CHEN Jian-jun, LI Jun-hua. EFFECT OF PREPARATION METHODS OF CuO-WO3/TiO2 CATALYSTS ON NH3-SCR DENITRATION ACTIVITY[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(5): 89-95. doi: 10.13205/j.hjgc.202005016
Citation: LIU Hai-yan, LI Dong, MIAO Xue, ZHU Yuan-yuan, LIU Xiao-feng, LV Ying, LI Jie, WU Ping-xia, PENG Yue, CHEN Jian-jun, LI Jun-hua. EFFECT OF PREPARATION METHODS OF CuO-WO3/TiO2 CATALYSTS ON NH3-SCR DENITRATION ACTIVITY[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(5): 89-95. doi: 10.13205/j.hjgc.202005016
shu

CuO-WO3/TiO2催化剂制备方法对NH3-SCR脱硝性能的影响

doi: 10.13205/j.hjgc.202005016

  • 1. 清华大学盐城环境工程技术研发中心, 江苏 盐城 224000;

  • 2. 清华大学 烟气多污染物控制技术与装备国家工程实验室, 北京 100084

基金项目: 

国家自然科学基金项目(21876093)。

国家重点研发计划项目(2016YFC02092020,2018YFC0213400,2017YFC0210700)

详细信息
    作者简介:

    刘海岩(1988-),女,硕士,主要研究方向为新型催化材料和催化剂开发。996542071@qq.com

    通讯作者:

    陈建军(1981-),男,博士,副研究员,主要研究方向为烟气中低温脱硝技术和高效加氢脱硫技术。chenjianjun@tsinghua.edu.cn

EFFECT OF PREPARATION METHODS OF CuO-WO3/TiO2 CATALYSTS ON NH3-SCR DENITRATION ACTIVITY

  • 1. Tsinghua-Yancheng Environmental Engineering Technology Research and Development Center, Yancheng 224000, China;

  • 2. National Engineering Laboratory for Flue Gas Pollutants Control Technology and Equipment, Tsinghua University, Beijing 100084, China

    摘要
  • 摘要: 分别采用溶胶-凝胶法和浸渍法制备xCuO-yWO3/TiO2催化剂(x,y分别代表样品中ω(CuO)和ω(WO3)),并在微型固定床反应器中对制备的xCuO-yWO3/TiO2催化剂进行选择性催化还原脱硝(NH3-SCR)性能评价。结果表明:采用溶胶-凝胶法制备的2CuO-6WO3/TiO2催化剂具有较好的脱硝性能,在250~350 ℃,NOx转化率达到90%以上,相较于浸渍法制备的2CuO-6WO3/TiO2催化剂活性明显提高。并采用BET、XRD、H2-TPR、NH3-TPD和XPS等表征手段对制备的催化剂进一步表征分析,结果表明:通过溶胶-凝胶法制备2CuO-6WO3/TiO2催化剂的比表面积和表面化学吸附氧明显提高,且还原能力和酸性增强,对NH3的吸附能力亦有所提高,因此溶胶-凝胶法制备的2CuO-6WO3/TiO2催化剂表现出较好的NH3-SCR脱硝性能。
    Abstract: xCuO-yWO3/TiO2 catalysts (x and y represent the mass fraction of CuO and WO3 in the sample, respectively) were prepared by sol-gel method and impregnation method, respectively, and the SCR denitration performance (NH3-SCR) of the catalysts was evaluated in a miniature fixed-bed quartz reactor. It was found that the 2CuO-6WO3/TiO2 catalyst by the sol-gel method had good denitration performance, and made NOx conversion rate over 90% in temperature range of 250~350 ℃, which activity was improved significantly compared with 2CuO-6WO3/TiO2 catalyst by impregnation method. The prepared catalysts were characterized by BET, XRD, H2-TPR, NH3-TPD and XPS. The results showed that for the 2CuO-6WO3/TiO2 catalyst prepared by sol-gel method, the specific surface area, the surface adsorbed oxygen, the redox potential and adsorption capacity of NH3 increased significantly than the catalyst prepared by the impregnation method. Therefore, the 2CuO-6WO3/TiO2 catalyst prepared by sol-gel method exhibited excellent NH3-SCR activity and high N2 selectivity.
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  • 郝吉明, 马广大, 大气污染控制工程[M]. 2版. 北京: 高等教育出版,2002.
    崔海峰, 谢峻林, 李凤祥, 等. SCR烟气脱硝技术的研究与应用[J]. 硅酸盐通报, 2016, 35(3): 805-809.
    郭坤, 宋常, 张闻涛. 超声波浸渍法制备V2O5-WO3-TiO2选择性催化还原脱硝催化剂[J]. 环境工程, 2016, 31(2): 76-79.
    钟秦. 燃煤烟气脱硫脱硝技术及工程实例[M]. 北京: 化学工业出版社, 2007.
    杨玲, 李茂, 李建军. SCR催化剂的研究进展[J]. 四川化工, 2012(15): 26-29.
    王玉云, 沈岳松, 纵宇浩, 等. Co、Ni掺入对Pd-Rh型催化剂三效净化C3H8、CO、NO的影响[J]. 环境工程, 2015, 33(2): 62-68.
    郭丽颖, 朱林, 庄柯, 等. 钨对高钒燃气脱硝催化剂的改性及SCR反应历程研究[J]. 环境工程, 2019, 37(5): 160-166

    ,172.
    张强. 燃煤电站SCR烟气脱硝技术及工程应用[M]. 北京: 化学工业出版社, 2002.
    努热曼古丽·图尔荪, 古丽戈娜, 张文河,等. Cu<i>xO(CuO-Cu2O)纳米球催化剂制备及对CO2电化学还原性能影响的研究[J]. 环境工程, 2016, 34(3): 102-106.
    ZHANG H X, ZHANG H B, WANG P C, et al. Organic template-free synthesis of zeolite mordenite nanocrystals through exotic seed-assisted conversion[J]. RSC Advances, 2016, 6: 47623-47631.
    YU T, HAO T, FAN D Q, et al. Recent NH3-SCR mechanism research over Cu/SAPO-34 catalystp[J]. The Journal of Physical Chemistry C, 2016, 118(13): 6565-6575.
    XIE L J, LIU F D, REN L M, et al. Excellent performance of one-pot synthesized Cu-SSZ-13 catalyst for the selective catalytic reduction of NOx with NH3[J]. Environmental Science & Technology, 2014, 48: 566-572.
    WANG C, WANG J, WANG J Q, et al. The effect of sulfate species on the activity of NH3-SCR over Cu/SAPO-34[J]. Applied Catalysis B: Environmental, 2017, 204: 239-249.
    CORMA A, LI Z B, NAVARRO M T, et al. Synthesis of nano-SSZ-13 and its application in the reaction of methanol to olefins[J]. Catalysis Science & Technology, 2016, 6(13): 5856-5863.
    HAN S, CHENG J, YE Q, et al. Ce doping to Cu-SAPO-18: enhanced catalytic performance for the NH3-SCR of NO in simulated diesel exhaust[J]. Microporous and Mesoporous Materials, 2019,276: 133-146.
    NING P, SONG Z X, LI H, et al. Selective catalytic reduction of NO with NH3 over CeO2-ZrO2-WO3 catalysts prepared by different methods[J]. Applied Surface Science, 2015, 332: 130-137.
    LI K R, WANG Y J, WANG S R, et al. A comparative study of CuO/TiO2-SnO2, CuO/TiO2 and CuO/SnO2 catalysts for low-temperature CO oxidation[J]. Journal of Natural Gas Chemistry, 2009, 18: 449-452.
    PENG Y, LI J H, CHEN L, et al. Alkali metal poisoning of a CeO2-WO3 catalyst used in the selective catalytic reduction of NOx with NH3: an experimental and theoretical study[J]. Environmental Science & Technology, 2012, 46: 2864-2869.
    KANG M, PARK E D, KIM J M,et al. Cu-Mn mixed oxides for low temperature NO reduction with NH3[J]. Catalysis Today, 2006, 111: 236-241.
    MA Z R, WENG D, WU X D, et al. A novel Nb-Ce/WOx-TiO2 catalyst with high NH3-SCR activity and stability[J]. Catalysis Communications, 2012, 27: 97-100.
    SHAN W P, GENG Y, CHEN X L, et al. A highly efficient CeWOx catalyst for the selective catalytic reduction of NOx with NH3[J]. Catalysis Science & Technology,2016, 6: 1195-1200.
    LI X S, LI K Z, PENG Y,et al. Interaction of phosphorus with a FeTiOx catalyst for selective catalytic reduction of NOx with NH3: influence on surface acidity and SCR mechanism[J]. Chemical Engineering Journal, 2018, 347: 173-183.
    LIU Z M, SU H, CHEN B H, et al. Activity enhancement of WO3 modified Fe2O3 catalyst for the selective catalytic reduction of NOx by NH3[J]. Chemical Engineering Journal, 2016, 299: 255-262.
    ZHANG Q L, ZHANG Y Q, ZHANG T X, et al. Influence of preparation methods on iron-tungsten composite catalyst for NH3-SCR of NO: the active sites and reaction mechanism[J]. Applied Surface Science, 2019, 36: 144190.
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  • 收稿日期:  2019-10-10

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