期刊
CATALYSTS
卷 13, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/catal13111434
关键词
low-temperature SCR; carbon-based catalysts; SO2 and H2O resistance; NOx
This study introduces the efficient performance of low-temperature NH3-SCR technology for NOx removal from flue gas and discusses the potential application and challenges of carbon-based catalysts in this technology. Strategies to improve the resistance of carbon-based catalysts to water and SO2 are summarized, providing guidance for further development in this field.
Low-temperature NH3-SCR is an efficient technology for NOx removal from flue gas. The carbon-based catalyst designed by using porous carbon material with great specific surface area and interconnected pores as the support to load the active components shows excellent NH3-SCR performance and has a broad application prospect. However, overcoming the poor resistance of H2O and SO2 poisoning for carbon-based catalysts remains a great challenge. Notably, reviews on the sulfur and water resistance of carbon-based low-temperature NH3-SCR catalysts have not been previously reported to the best of our knowledge. This review introduces the reaction mechanism of the NH3-SCR process and the poisoning mechanism of SO2 and H2O to carbon-based catalysts. Strategies to improve the SO2 and H2O resistance of carbon-based catalysts in recent years are summarized through the effect of support, modification, structure control, preparation methods and reaction conditions. Perspective for the further development of carbon-based catalysts in NOx low-temperature SCR is proposed. This study provides a new insight and guidance into the design of low-temperature SCR catalysts resistant to SO2 and H2O in the future.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据