Experimental study on preparation of the activated carbon-supported vanadium oxide catalyst

ZHANG Yang; HE Sheng; DU Zhen; YANG Yonglong; WEI Hongge; ZHU Yue

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Experimental study on preparation of the activated carbon-supported vanadium oxide catalyst

Thermal Power Generation Vol. 43, Issue 7, Pages: 124-127(2014)

更新时间：2025-09-28

- Experimental study on preparation of the activated carbon-supported vanadium oxide catalyst
- 作者机构：
  
  华电电力科学研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TQ426;X701
- Published：2014
- 稿件说明：
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ZHANG Yang, HE Sheng, DU Zhen, et al. Experimental study on preparation of the activated carbon-supported vanadium oxide catalyst[J]. Thermal Power Generation, 2014, 43(7): 124-127.
DOI：

ZHANG Yang, HE Sheng, DU Zhen, et al. Experimental study on preparation of the activated carbon-supported vanadium oxide catalyst[J]. Thermal Power Generation, 2014, 43(7): 124-127. DOI：

摘要

采用固定床反应器研究了活性炭负载V2O5(V2O5/AC)催化剂制备过程中各项参数对催化剂脱硝活性的影响。结果表明:HNO3预处理对于V2O5/AC催化剂脱硝活性具有明显的促进作用

最佳的V负载量为3%;活性组分前驱体在450℃以上可完全分解

最佳的预氧化温度为230℃;当温度过高时

活性炭载体在预氧化过程中会与O2反应

同时V2O5会在活性炭表面聚集

从而造成脱硝活性的下降;最佳条件下制备所得V2O5/AC催化剂在实验条件下表现出高度稳定的脱硝性能

脱硝效率达90%。

Abstract

The effects of preparation conditions of the activated carbon-supported vanadium oxide catalyst(V2O5/AC)on its NOxremoval activity were investigated in a fixed bed reactor.The results suggests that the HNO3 pretreatment can promote the NOx removal efficienty of the V2O5/AC catalyst.The optimal load of V on V2O5/AC catalyst is 3%.Further more

the precursor of the active component can be decomposed completely at above 450℃

and the optimal pre-oxidation temperature is 230℃.The activated carbon supporter will react with O2 when the temperature of prec-oxidation exceeds 230℃

leading to the V2O5 aggregation on the activated carbon supporter.In conclusion a highly stable NOxremoval performance can be achieved by the prepared V2O5/AC catalyst

with a NOxreduction efficiency of 90%.

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