Preparation of ceramic catalytic filter and its deNO<sub>x</sub> performance

AN Zhen; NIU Guoping; TAN Zengqiang; SHANG Tong; YANG Xiaogang

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Preparation of ceramic catalytic filter and its deNO_x performance

Thermal Power Generation Vol. 46, Issue 2, Pages: 36-41(2017)

更新时间：2025-09-28

- Preparation of ceramic catalytic filter and its deNO_x performance
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： X701
- Published：2017
- 稿件说明：
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AN Zhen, NIU Guoping, TAN Zengqiang, et al. Preparation of ceramic catalytic filter and its deNO_x performance[J]. Thermal Power Generation, 2017, 46(2): 36-41.
DOI：

AN Zhen, NIU Guoping, TAN Zengqiang, et al. Preparation of ceramic catalytic filter and its deNO_x performance[J]. Thermal Power Generation, 2017, 46(2): 36-41. DOI：

摘要

采用溶胶凝胶法在陶瓷过滤器上负载TiO_2载体

再负载脱硝活性组分V_2O_5

制备出具有催化功能的V_2O_5-TiO_2陶瓷催化过滤器;采用扫描电子显微镜、X射线衍射仪、化学吸附仪等手段对制备的陶瓷催化过滤器进行了表征;不考虑飞灰颗粒影响

在模拟烟气条件下对制备的陶瓷催化过滤器进行了脱硝性能研究

分析了TiO_2负载次数和负载量、V_2O_5负载量、表面速度、氨氮比等对陶瓷催化过滤器脱硝性能的影响

并考察了表面速度以及氨氮比对陶瓷催化过滤器脱硝性能的影响。结果表明:脱硝催化剂均匀负载在陶瓷过滤器上;负载1次TiO_2载体(即TiO_2质量分数为3%)可以获得最大的过滤器比表面积

有利于负载活性组分;温度为340℃

烟气流量为0.5L/min

V_2O_5负载量为10%时陶瓷催化过滤器的脱硝活性最高

达到80%左右。该结果为进一步研究和优化陶瓷过滤器负载脱硝催化剂提供了依据。

Abstract

A V_2O_5-TiO_2 ceramic filter with catalytic function was prepared by loading TiO_2 carrier and active denitration components on the ceramic filter using sol-gel method.Moreover

the prepared ceramic catalytic filter was characterized by SEM

XRD and BET.Without considering the effect of fly ash particles

the deNOxperformance of the ceramic catalytic filter was studied in the simulated flue gas.The effects of several factors on denitration performance of the ceramic catalytic filter were also investigated

such as the loading times and capacity

V_2O_5 load capacity

surface velocity and mole ratio of ammonia to nitrogen.The results indicated that

the catalyst dispersed uniformly in the ceramic filters.One time loading of the TiO_2carrier(mass fraction of TiO_2 is 3%)can obtain the maximum specific surface area for the filter

which is advantageous to loading active components.At 340℃

with flue gas flow rate of 0.5L/min and V_2O_5 mass fraction of 10%

the ceramic filter's denitration activity could reach up to 80%

which is the highest.This conclusion provides basis for further study and optimization for ceramic filter supported denitration catalyst.

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Preparation of ceramic catalytic filter and its deNOx performance

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Preparation of ceramic catalytic filter and its deNO_x performance