环境保护科学2023，Vol.49Issue(6)：77-82,6.DOI:10.16803/j.cnki.issn.1004-6216.202211018
不同载体对Cu基脱硝催化剂性能的影响研究
Investigation of the catalytic performance of Cu-based De-NOx catalyst supported on the different carriers
摘要
Abstract
Cu-based De-NOxcatalysts were prepared by using TiO2,ZSM-5,and SSZ-39 as the carrier,respectively.XRD,N2-adsorption,H2-TPR,XPS,NH3-TPD,and NH3-DRIFTS analyses were carried out to characterize the catalysts.The catalytic activities of the catalysts,and the SO2 and H2O resistance of Cu/SSZ-39 catalyst were tested via a fix-bed micro-reactor.The results showed that Cu/TiO2 catalyst exhibited a relatively low BET surface area,the low content of active sites,a low ratio of Oα/(Oα+Oβ)with a poor acid strength and acid sites.As a result,Cu/TiO2 catalyst showed the worst catalytic activity among the investigated catalysts.By contrast,Cu/ZSM-5 and Cu/SSZ-39 catalysts displayed well catalytic performance.Cu/SSZ-39 catalyst showed a better reducibility and more acid sites than that of the Cu/ZSM-5 catalyst,leading to a relative higher catalytic activity.Cu/SSZ-39 catalyst also exhibited good stability.The NOxconversion of Cu/SSZ-39 catalyst remained stable during the 60 h reaction with the presence of SO2 and H2O.关键词
脱硝/Cu/载体/SSZ-39Key words
De-NOx/copper/carrier/SSZ-39分类
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李金珂,黄力,王素芹,纵宇浩,王虎,高义博,于洋..不同载体对Cu基脱硝催化剂性能的影响研究[J].环境保护科学,2023,49(6):77-82,6.基金项目
江苏省自然科学基金(BK20210001) （BK20210001）
