高级搜索

选择性催化还原(SCR)脱硝催化剂钛钨粉原始粉体的对比

,  , 

downloadPDF

上一篇

下一篇

杜云贵, 徐婷, 辜敏. 选择性催化还原(SCR)脱硝催化剂钛钨粉原始粉体的对比[J]. 环境化学, 2012, 31(8): 1251-1255.
引用本文: 杜云贵, 徐婷, 辜敏. 选择性催化还原(SCR)脱硝催化剂钛钨粉原始粉体的对比[J]. 环境化学, 2012, 31(8): 1251-1255.
shu
DU Yungui, XU Ting, GU Min. Comparison of domestic and imported WO3/TiO2 powder raw-materials for the production of de-NOx SCR catalysts[J]. Environmental Chemistry, 2012, 31(8): 1251-1255.
Citation: DU Yungui, XU Ting, GU Min. Comparison of domestic and imported WO3/TiO2 powder raw-materials for the production of de-NOx SCR catalysts[J]. Environmental Chemistry, 2012, 31(8): 1251-1255.
shu

选择性催化还原(SCR)脱硝催化剂钛钨粉原始粉体的对比

  • 1.

    复杂煤层瓦斯抽采国家与地方联合工程实验室, 重庆大学煤矿灾害动力学与控制国家重点实验室, 重庆大学资源及环境科学学院, 重庆, 400044

  • 基金项目:

    国家高技术研究发展计划(863)(2010AA065001)资助.

Comparison of domestic and imported WO3/TiO2 powder raw-materials for the production of de-NOx SCR catalysts

  • 1.

    State and Local Joint Engineering Laboratory of Methane Drainage in Complex Coal Gas Seam, State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, College of Resources and Environmental Science, Chongqing University, Chongqing, 400044, China

  • Fund Project:

  • 摘要: 采用XRF、XRD、低温N2吸附曲线、SEM和FT-IR考察了国产和进口钛钨(WO3/TiO2)粉的组成及其微观结构.结果表明,国产和进口钛钨粉中Ti和W的含量相差不大,但是国产钛钨粉都含有少量P,而国外钛钨粉O和S含量较大.国产和进口钛钨粉中TiO2都为锐钛矿型晶型;其表面官能团基本相同;钛钨粉颗粒形貌类似,都为多孔物质,其比表面积相差不大,但是进口样品的孔容高于国产样品.
    Abstract: In this paper, using XRF, XRD, N2 adsorption isothermal curve, SEM and FT-IR, the composition and microstructures of the domestic and imported WO3/TiO2 powder raw-materials were carefully analyzed. It was found that the contents of Ti and W did not differ much for both kinds of WO3/TiO2 powder raw-materials. However, the domestic ones contained small amount of P, while the contents of O and S in the imported material were higher. The TiO2 in both raw-materials were in anatase phase and the functional groups on the raw-materials surface were similar. Both materials were porous with similar morphology and specific surface area. However, the micropore volume of the imported raw-material was larger than the domestic ones.
  • 加载中
  • [1] 陈晓林,仲兆平. 以TiO2为载体的烟气脱硝催化剂研究进展[J]. 江苏电机工程,2010,29(2):54-56
    [2] 朱崇兵,金保升,李锋,等.蜂窝状V2O5-WO3/TiO2催化剂脱硝性能研究[J].中国电机工程学报,2007,27(29):45-50
    [3] 云端,邓斯理,宋蔷,等. V2O5-WO3/TiO2系SCR催化剂的钾中毒及再生方法[J]. 环境科学研究,2009,22(6):730-735
    [4] 朱崇兵,金保升,仲兆平,等.V2O5-WO3/TiO2烟气脱硝催化剂的载体选择[J].中国电机工程学报,2008,28(11):41-47
    [5] 孙克勤,钟秦,李明波,等.V2O5-WO3/TiO2脱硝催化剂的制备及其性能研究[J].环境科学研究,2007,20(3):124-127
    [6] 熊丽仙,沈伯雄,杨晓燕,等.纳米负载型V2O5-WO3/TiO2催化剂碱及碱土金属中毒[J].环境化学,2010,29(4):690-695
    [7] Alemany L J, Lietti L, Ferlazzo N, et al. Reactivity and physicochemical characterisation of V2O5-WO3/TiO2 De-NOx catalysts[J]. Journal of Catalysis,1995,155(1):117-130
    [8] 李云涛,毛宇杰,钟秦,等.SCR催化剂的组成对其脱硝性能的影响[J].燃料化学学报,2009,37(5):601-606
    [9] 陈朝华.锐钛型钛白粉加入磷酸的探讨[J].中国涂料,2001,1:24-26
    [10] Kamata H, Takahashi K, Odenbrand C U I. Surface acid property and its relation to SCR activity of phosphorus added to commercial V2O5(WO3)/TiO2 catalyst [J].Catalysis Letters, 1998, 53(1/2):65-71
    [11] 李锋.以纳米TiO2为载体的燃煤烟气脱硝SCR催化剂的研究.南京:东南大学博士学位论文,2006
    [12] Busca G, Lietti L, Ramis G, et al. Chemical and mechanistic aspects of the selective catalytic reduction of NOx by ammonia over oxide catalysts:A review[J].Applied Catalysis B:Environmental,1998,18(1/2):1-36
    [13] Shi A J, Wang X Q, Yu T, et al. The effect of zirconia additive on the activity and structure stability of V2O5/WO3-TiO2 ammonia SCR catalysts[J]. Applied Catalysis B:Environmental,2011,106(3/4):359-369
    [14] Nicosia D, Czekaj I, Kröcher O. Chemical deactivation of V2O5/WO3-TiO2 SCR catalysts by additives and impurities from fuels, lubrication oils and urea solution: PartⅡcharacterization study of the effect of alkali and alkaline earth metals[J]. Applied Catalysis B: Environmental, 2008, 77(3/4):228-236
    [15] Chen L, Li J H, Ge M F. 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(2/3):531-537
    [16] 沈伯雄,杨婷婷,刘亭,等.纳米负载型选择性催化还原反应催化剂的制备和性能研究[J].中国电机工程学报,2008,28(35):27-31
    [17] Forzatti P. Present status and perspectives in de-NOx SCR catalysis[J]. Applied Catalysis A: General, 2001,222(1/2):221-236
    [18] 李锋,金保升,翟俊霞,等.不同纳米级锐钛型TiO2的V2O5基催化剂脱氮性能[J].中国环境科学,2005,25(6):742-745
    [19] Madia G, Elsener M, Koebel M, et al. Thermal stability of vanadia-tungsta-titania catalysts in the SCR process[J]. Applied Catalysis B: Environmental, 2002, 39(2): 181-190
    [20] 袁泉东,卢晗锋,黄海凤.多孔TiO2为载体的V2O5-WO3脱硝催化剂制备和表征[J].环境污染与防治,2008,30(6):58-61
    [21] 孙克勤.选择性催化还原脱硝的理论及实验研究.南京:南京理工大学博士学位论文,2007
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  772
  • HTML全文浏览数:  727
  • PDF下载数:  813
  • 施引文献:  0
出版历程
  • 收稿日期:  2011-11-05
杜云贵, 徐婷, 辜敏. 选择性催化还原(SCR)脱硝催化剂钛钨粉原始粉体的对比[J]. 环境化学, 2012, 31(8): 1251-1255.
引用本文: 杜云贵, 徐婷, 辜敏. 选择性催化还原(SCR)脱硝催化剂钛钨粉原始粉体的对比[J]. 环境化学, 2012, 31(8): 1251-1255.
shu
DU Yungui, XU Ting, GU Min. Comparison of domestic and imported WO3/TiO2 powder raw-materials for the production of de-NOx SCR catalysts[J]. Environmental Chemistry, 2012, 31(8): 1251-1255.
Citation: DU Yungui, XU Ting, GU Min. Comparison of domestic and imported WO3/TiO2 powder raw-materials for the production of de-NOx SCR catalysts[J]. Environmental Chemistry, 2012, 31(8): 1251-1255.
shu

选择性催化还原(SCR)脱硝催化剂钛钨粉原始粉体的对比

  • 1. 复杂煤层瓦斯抽采国家与地方联合工程实验室, 重庆大学煤矿灾害动力学与控制国家重点实验室, 重庆大学资源及环境科学学院, 重庆, 400044
  • 收稿日期:  2011-11-05
基金项目:

国家高技术研究发展计划(863)(2010AA065001)资助.

摘要: 采用XRF、XRD、低温N2吸附曲线、SEM和FT-IR考察了国产和进口钛钨(WO3/TiO2)粉的组成及其微观结构.结果表明,国产和进口钛钨粉中Ti和W的含量相差不大,但是国产钛钨粉都含有少量P,而国外钛钨粉O和S含量较大.国产和进口钛钨粉中TiO2都为锐钛矿型晶型;其表面官能团基本相同;钛钨粉颗粒形貌类似,都为多孔物质,其比表面积相差不大,但是进口样品的孔容高于国产样品.

English Abstract

    全文HTML

参考文献 (21)

返回顶部

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心