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以堇青石和二氧化钛为载体脱硝催化剂性能

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席文昌, 刘清才, 杨剑, 贺媛媛, 黄锐, 袁鹏, 洪燕. 以堇青石和二氧化钛为载体脱硝催化剂性能[J]. 环境工程学报, 2013, 7(6): 2262-2266.
引用本文: 席文昌, 刘清才, 杨剑, 贺媛媛, 黄锐, 袁鹏, 洪燕. 以堇青石和二氧化钛为载体脱硝催化剂性能[J]. 环境工程学报, 2013, 7(6): 2262-2266.
shu
Xi Wenchang, Liu Qingcai, Yang Jian, He Yuanyuan, Huang Rui, Yuan Peng, Hong Yan. Performance of deNOx catalyst supported on cordierite-TiO2 carrier[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2262-2266.
Citation: Xi Wenchang, Liu Qingcai, Yang Jian, He Yuanyuan, Huang Rui, Yuan Peng, Hong Yan. Performance of deNOx catalyst supported on cordierite-TiO2 carrier[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2262-2266.
shu

以堇青石和二氧化钛为载体脱硝催化剂性能

  • 1.

    重庆大学材料科学与工程学院, 重庆 400044

  • 2.

    重庆远达催化剂制造有限公司, 重庆 401336

  • 3.

    中电投远达环保工程有限公司, 重庆 401122

  • 基金项目:

    国家高技术研究发展计划(863)项目(2010AA065001)

    科技人员服务企业行动(2009GJF10047)

    重庆市科技攻关项目(CSTC,2010AB7132)

  • 中图分类号: X511

Performance of deNOx catalyst supported on cordierite-TiO2 carrier

  • 1.

    School of Material Science and Engineering, Chongqing University, Chongqing 400044, China

  • 2.

    Chongqing Yuanda Catalyst Manufacturing Co. Ltd., Chongqing 401336, China

  • 3.

    China Power Investment Yuanda Environmental Protection Engineering Co. Ltd., Chongqing 401122, China

  • Fund Project:

摘要

  • 摘要: 采用改性堇青石和锐钛型二氧化钛为载体,以偏钨酸氨为WO3(助剂)的前驱体,以偏钒酸铵为V2O5(活性组分)的前驱体,通过混合、挤出、干燥和煅烧等工艺制备出蜂窝式SCR脱硝催化剂,采用N2-吸附仪(BET)、X-射线衍射分析仪(XRD)、模拟烟气活性分析装置和磨损装置,再通过催化剂样品的吸水率和收缩率对比分析。考察催化剂样品的比表面积、晶相结构、耐磨损性能、脱硝活性及其吸水率和收缩率变化。结果表明,以10%堇青石和二氧化钛为载体制备出的催化剂比表面积大,晶相结构以堇青石和锐钛矿型二氧化钛为主,其磨损率低,吸水率和收缩率变化小,脱硝率在80%以上时,与商业催化剂相比,反应温度窗口从300~400℃拓宽为250~460℃。
    Abstract: Using modified cordierite and anatase-TiO2 as the carrier, WO3 as the addition agent and V2O5 as the active component, V2O5-WO3/Cordierite-TiO2 honeycomb selective catalytic reduction (SCR) for DeNOx application was prepared though mixing, extrusion, drying and calcination process. The surface area and crystal structure of V2O5-WO3/Cordierite-TiO2 catalyst were studied by BET and XRD. The abrasion resistance, water-absorption ratio, shrinkage ratio and activity were investigated by simulated flue gas analyzer and abration equipment, then through the comparison of water absorption and shrinkage of the catalyst samples. The results indicated that BET of 1%V2O5-WO3/10%Cordierite-TiO2 was larger than commercial catalyst, main crystalline phase of it was cordierite and anatase-TiO2, the abration ratio, water-absorption and shrinkage ratio of it were lower. When denitrification rate of it was above 80%, the temperature window of its activity could be widened from 300~400℃ to 250~460℃, compared with commercial catalysts.
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出版历程
  • 收稿日期:  2012-04-25
  • 刊出日期:  2013-06-11
席文昌, 刘清才, 杨剑, 贺媛媛, 黄锐, 袁鹏, 洪燕. 以堇青石和二氧化钛为载体脱硝催化剂性能[J]. 环境工程学报, 2013, 7(6): 2262-2266.
引用本文: 席文昌, 刘清才, 杨剑, 贺媛媛, 黄锐, 袁鹏, 洪燕. 以堇青石和二氧化钛为载体脱硝催化剂性能[J]. 环境工程学报, 2013, 7(6): 2262-2266.
shu
Xi Wenchang, Liu Qingcai, Yang Jian, He Yuanyuan, Huang Rui, Yuan Peng, Hong Yan. Performance of deNOx catalyst supported on cordierite-TiO2 carrier[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2262-2266.
Citation: Xi Wenchang, Liu Qingcai, Yang Jian, He Yuanyuan, Huang Rui, Yuan Peng, Hong Yan. Performance of deNOx catalyst supported on cordierite-TiO2 carrier[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2262-2266.
shu

以堇青石和二氧化钛为载体脱硝催化剂性能

  • 1.  重庆大学材料科学与工程学院, 重庆 400044
  • 2.  重庆远达催化剂制造有限公司, 重庆 401336
  • 3.  中电投远达环保工程有限公司, 重庆 401122
  • 收稿日期:  2012-04-25
基金项目:

国家高技术研究发展计划(863)项目(2010AA065001)

科技人员服务企业行动(2009GJF10047)

重庆市科技攻关项目(CSTC,2010AB7132)

摘要: 采用改性堇青石和锐钛型二氧化钛为载体,以偏钨酸氨为WO3(助剂)的前驱体,以偏钒酸铵为V2O5(活性组分)的前驱体,通过混合、挤出、干燥和煅烧等工艺制备出蜂窝式SCR脱硝催化剂,采用N2-吸附仪(BET)、X-射线衍射分析仪(XRD)、模拟烟气活性分析装置和磨损装置,再通过催化剂样品的吸水率和收缩率对比分析。考察催化剂样品的比表面积、晶相结构、耐磨损性能、脱硝活性及其吸水率和收缩率变化。结果表明,以10%堇青石和二氧化钛为载体制备出的催化剂比表面积大,晶相结构以堇青石和锐钛矿型二氧化钛为主,其磨损率低,吸水率和收缩率变化小,脱硝率在80%以上时,与商业催化剂相比,反应温度窗口从300~400℃拓宽为250~460℃。

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