Surface properties and flue gas denitrification performance of honeycomb CuO/γ-Al<sub>2</sub>O<sub>3</sub> catalysts

WANG Xuetao; JIAO Yefan; ZHUANG Shali; ZHANG Xingyu

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Surface properties and flue gas denitrification performance of honeycomb CuO/γ-Al₂O₃ catalysts

更新时间：2025-09-28

- Surface properties and flue gas denitrification performance of honeycomb CuO/γ-Al₂O₃ catalysts
- Thermal Power Generation Vol. 43, Issue 2, Pages: 30-35(2014)
- 作者机构：
  
  河南科技大学车辆与动力工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TQ426;X701
- Published：2014
- 稿件说明：
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WANG Xuetao, JIAO Yefan, ZHUANG Shali, et al. Surface properties and flue gas denitrification performance of honeycomb CuO/γ-Al₂O₃ catalysts[J]. Thermal power generation, 2014, 43(2): 30-35.
DOI：

WANG Xuetao, JIAO Yefan, ZHUANG Shali, et al. Surface properties and flue gas denitrification performance of honeycomb CuO/γ-Al₂O₃ catalysts[J]. Thermal power generation, 2014, 43(2): 30-35. DOI：

摘要

通过浸渍法制备了CuO/γ-Al2O3系列催化剂

在模拟烟气脱硝试验装置上考察该催化剂的脱硝性能

并利用比表面积分析仪(BET)、X射线衍射(XRD)对催化剂进行了微观表征分析

研究了CuO的负载量、煅烧温度及CeO2对催化剂表面性能及催化剂脱硝活性的影响。结果表明:随着负载量的增加

CuO的衍射特征峰强度随之增加;CuO负载量对CuO/γ-Al2O3催化剂的表面结构有较大影响

随着CuO负载量的增加

试样的比表面积和孔体积均呈减小趋势

而平均孔径略微增大;CuO/γ-Al2O3催化剂的活性较高

对NO选择性催化还原较为适宜;CuO负载量为7.5%

煅烧温度为500℃时催化剂的NO转化率最高可达91.4%

加入CeO2可使催化剂的NO脱除效率达到94.5%。

Abstract

A series of CuO/γ-Al2O3 catalysts were prepared by impregnation method.The denitrification property of the catalysts was investigated in a simulated flue gas denitrification experimental device.The prepared samples were characterized by the BET specific surface area analyzer and X-ray diffraction(XRD).The effect of CuO loading

calcined temperature

and promoter CeO2 on catalytic performance was investigated.The XRD results showed that the intensity of X-rays diffraction pattern of CuO wais enhanced with the CuO loading amount.The BET results indicated that the CuO loading amount had a great influence on surface structure of the CuO/γ-Al2O3 catalyst.With the increasing CuO loading amount

the specific surface area and pore volume samples showed a decrease tendency while the average pore size slightly increased.The CuO/γ-Al2O3 catalyst had higher catalytic activity

which was suitable to the selective catalytic reduction of NO.The catalyst calcined at 500℃and loaded CuO with 7.5% had better catalysts morphology

and its denitrification efficiency can reach 91.4%.Addition of CeO2 can enhance the denitrification efficiency to 94.5%.

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Surface properties and flue gas denitrification performance of honeycomb CuO/γ-Al2O3 catalysts

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Surface properties and flue gas denitrification performance of honeycomb CuO/γ-Al₂O₃ catalysts