Study on CO oxidation performance of Ce-Cu/γ-Al<sub>2</sub>O<sub>3</sub> catalyst in flue gas

XIANG Xiaofeng; ZHANG Bo; ZHANG Xiangyu; LU Xu; XU Hongjie

doi:10.19666/j.rlfd.202012303

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Study on CO oxidation performance of Ce-Cu/γ-Al₂O₃ catalyst in flue gas

Thermal Power Generation Vol. 50, Issue 10, Pages: 124-129(2021)

更新时间：2025-09-28

- Study on CO oxidation performance of Ce-Cu/γ-Al₂O₃ catalyst in flue gas
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202012303
  CLC： TQ426;X701
- Published：2021
- 稿件说明：
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XIANG Xiaofeng, ZHANG Bo, ZHANG Xiangyu, et al. Study on CO oxidation performance of Ce-Cu/γ-Al₂O₃ catalyst in flue gas[J]. Thermal Power Generation, 2021, 50(10): 124-129.
DOI：

XIANG Xiaofeng, ZHANG Bo, ZHANG Xiangyu, et al. Study on CO oxidation performance of Ce-Cu/γ-Al₂O₃ catalyst in flue gas[J]. Thermal Power Generation, 2021, 50(10): 124-129. DOI： 10.19666/j.rlfd.202012303.

摘要

采用传统浸渍法制备了Ce-Cu/γ-Al_2O_3非贵金属催化剂

基于深度分级燃烧炉膛外CO氧化催化作用

在管式炉实验平台上

开展低温CO氧化催化基础实验研究。结果表明:在250～300℃之间

催化氧化CO效果明显(255℃时CO转化率78.62%)

300℃之后保持较高CO转化率(大于99.5%);停留时间1.2 s时

在150～200℃就具有较高的CO氧化活性

延长到5 s后CO转化率55.7%(150℃)

很快增加到97%(200℃)

催化效果明显;对高体积分数CO(3 000×10~(–6))也具备较高的催化剂活性和处理能力;催化效率随气速(0.2～0.8 L/min)减小而增大;含氧量(体积分数2%～3%)越高

催化剂效率越高;添加Co后Al_2O_3衍射峰轻微下降

有利于催化氧化活性的提高。

Abstract

Based on the catalytic effect of CO oxidation outside the furnace of deep staged combustion

the experimental study on Ce-Cu/γ-Al_2O_3 non-precious metal catalyst prepared by conventional impregnation method was carried out in a tubular furnace.The results show that

the catalytic oxidation of CO was obvious at 250～300℃(the conversion rate of CO reached 78.62%at 255℃)

and the conversion rate of CO was maintained at a high level (99.5%) at temperatures higher than 300℃.When the residence time was 1.2 s

the CO oxidation activity was higher at 150～200℃.When the residence time was 5 s

the conversion rate of CO was 55.7%(150℃) and quickly increased to 97%(200℃)

with obvious catalytic effect.The catalyst also had high activity and treatment capacity for CO with high volume fraction (3 000×10~(–6)).The catalytic efficiency increased with the decrease of gas velocity (0.2～0.8 L/min) and the increase of oxygen content (2%～3%).The diffraction peak of Al_2O_3 decreased slightly after the addition of Co

which is beneficial to the improvement of catalytic oxidation activity.

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Study on CO oxidation performance of Ce-Cu/γ-Al2O3 catalyst in flue gas

DOI：10.19666/j.rlfd.202012303

摘要

Abstract

关键词

Keywords

references

Study on CO oxidation performance of Ce-Cu/γ-Al₂O₃ catalyst in flue gas