Low-temperature SCR reactivity of the activated Carbon-supported vanadium oxide catalyst

ZHANG Yang; LIU Xingli; WANG Jianfeng; FENG Qianwei; ZHU Yue

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Low-temperature SCR reactivity of the activated Carbon-supported vanadium oxide catalyst

Thermal Power Generation Vol. 43, Issue 10, Pages: 62-65(2014)

更新时间：2025-09-28

- Low-temperature SCR reactivity of the activated Carbon-supported vanadium oxide catalyst
- 作者机构：
  
  1. 华电电力科学研究院
  2. 陕西华电蒲城发电有限责任公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： X701
- Published：2014
- 稿件说明：
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ZHANG Yang, LIU Xingli, WANG Jianfeng, et al. Low-temperature SCR reactivity of the activated Carbon-supported vanadium oxide catalyst[J]. Thermal Power Generation, 2014, 43(10): 62-65.
DOI：

ZHANG Yang, LIU Xingli, WANG Jianfeng, et al. Low-temperature SCR reactivity of the activated Carbon-supported vanadium oxide catalyst[J]. Thermal Power Generation, 2014, 43(10): 62-65. DOI：

摘要

采用固定床反应器考察了在不同烟气条件下活性炭负载V2O5(V2O5/AC)脱硝催化剂的低温SCR脱硝性能。结果表明:活性炭负载V2O5后吸附NO的能力有所提升

吸附NH3的能力显著增强;所制备的V2O5/AC催化剂可在250℃、空速36 000L/(kg·h)的条件下表现出高达90%的脱硝效率

虽然继续升高温度能够进一步提高脱硝效率

但也会造成活性炭的烧蚀;当模拟烟气中加入H2O时会导致催化剂脱硝性能的下降。暂态响应实验结果表明O2的存在是SCR脱硝反应连续进行的必要条件。

Abstract

Effects of reaction conditions on low-temperature SCR activity of the activated carbon-supported vanadium oxide(V2O5/AC)catalyst were investigated in a fixed bed reactor.The results suggest that

compared with AC

the NO adsorption capacity of V2O5/AC was enhanced a little while the NH3 adsorption capacity was significantly enhanced.The prepared V2O5/AC catalyst had approximately 90% NOxreduction rate at 250 ℃ and 36 000L/(kg·h)space velocity.Raising the temperature could promote the SCR process

but the ablation of AC was also accelerated.The SCR reactivity declined when H2 O was added into the simulated flue gas.Results of the transient response test suggest that O2 was essential to the SCR reaction.

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