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Fabrication of MnOx-CeO2-Based Catalytic Filters and Their Application in Low-Temperature Selective Catalytic Reduction of NO with NH3

文献类型：期刊论文

作者Li, Weiman1,2; Liu, Haidi2; Chen, Yunfa2
刊名INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
出版日期2020-07-15
卷号59期号:28页码:9
ISSN号0888-5885
DOI10.1021/acs.iecr.0c00131
英文摘要Catalytic filters (CFs) were fabricated by coating manganese and ceria oxides on mullite filters with a high porosity and a relatively low pressure drop and were used in the selective catalytic reduction of NOx by NH3 (NH3-SCR). The influences of Mn/Ce ratios and loading weights were investigated. The CF with a Mn/Ce molar ratio of 6/4 can achieve >90% NO conversion in the temperature range of 120-250 degrees C, owing to abundant surface oxygen species, Ce3+, and Mn4+ on it. NO conversion in the temperature range of 120-250 degrees C increased when the loading weight increased from 1.05 to 4.18%; however, when the loading weight was further increased, the catalytic activity remained unchanged. A possible growth mechanism of catalyst particles on mullite filters was proposed: the active species tended to disperse finely when the loading weight was lower than similar to 4.00%; however, when the loading weight was more than 4.00%, the particles tended to grow at the conjunction of fibers, leading to a considerable pressure drop increase. The CFs showed a dust removal ability of more than 99% in a pilot experiment, which may provide a chance for the coprocessing of dust and NOx in practical use.
WOS关键词FIBROUS CERAMIC MEMBRANE ; PERFORMANCE ; OXIDATION ; NH3-SCR ; SCR ; FACETS ; CARBON ; CERIUM ; CEO2 ; NI
资助项目National Key Research and Development Plan[2016YFC0204100] ; National Key Research and Development Plan[2016YFC0204103] ; National Key Research and Development Plan[2018YFC0213404] ; National Key Research and Development Plan[ZDRW-ZS2017-6-2]
WOS研究方向Engineering
语种英语
WOS记录号WOS:000551493100004
出版者AMER CHEMICAL SOC
资助机构National Key Research and Development Plan
源URL[http://ir.ipe.ac.cn/handle/122111/41472]  
专题中国科学院过程工程研究所
通讯作者Chen, Yunfa
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Li, Weiman,Liu, Haidi,Chen, Yunfa. Fabrication of MnOx-CeO2-Based Catalytic Filters and Their Application in Low-Temperature Selective Catalytic Reduction of NO with NH3[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2020,59(28):9.
APA Li, Weiman,Liu, Haidi,&Chen, Yunfa.(2020).Fabrication of MnOx-CeO2-Based Catalytic Filters and Their Application in Low-Temperature Selective Catalytic Reduction of NO with NH3.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,59(28),9.
MLA Li, Weiman,et al."Fabrication of MnOx-CeO2-Based Catalytic Filters and Their Application in Low-Temperature Selective Catalytic Reduction of NO with NH3".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 59.28(2020):9.

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来源：过程工程研究所

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