CAS OpenIR
Catalytic behavior in CH4 decomposition of catalysts derived from red mud: Impact of residual Na2O
Geng, Sulong1; Zhang, Zhanguo2; Li, Junjie3; Qian, Jianguo1; Liu, Jiao4; Yu, Jian4; Xu, Guangwen2
2022-02-08
Source PublicationINTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN0360-3199
Volume47Issue:12Pages:7836-7845
AbstractCatalyst samples for CH4 decomposition were prepared from red mud (RM) by an acid-leaching neutralization precipitation approach. Water-washing the resultant precipitates multiple times, followed by drying at 105 degrees C and calcination at 500 degrees C, resulted in a threshold of residual Na2O, equivalent to 96% Na2O removal. Drying the precipitate at a higher temperature of 200 degrees C, followed by repeated water washing, provided a deeper Na2O removal of 99% and made the resultant samples more active for the targeted reaction. Subsequently, four catalyst samples with a simulated red mud composition and NaOH contents from 0 to 0.3 wt% were prepared and the catalytic test results revealed that the Na2O remaining in the RM-derived catalysts did not only inhibit their activation in CH4 but also lower their maximal activities for CH4 decomposition. Finally, two catalysts with the same simulated red mud composition and their Na impregnated respectively on Fe2O3 and a mixture support of Al2O3-SiO2-TiO2 were prepared and tested to explore the effect of Na distribution on the activation behavior of RM-derived catalysts for CH4 decomposition. activity testing results showed that it was the Na residual dispersed on iron oxides in the RM-derived samples to significantly inhibit the activation of CH4 decomposition. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
KeywordRed mud Catalyst Na2O Methane decomposition Fe2O3 Nanocarbon
DOI10.1016/j.ijhydene.2021.12.149
Language英语
WOS KeywordMETHANE DECOMPOSITION ; HYDROGEN-PRODUCTION ; COMPLETE OXIDATION ; CARBON DEPOSITION ; FE CATALYSTS ; WASTE ; OPTIMIZATION ; PERFORMANCE ; NANOCARBON ; NANOTUBES
Funding ProjectNational Key Research and Development Program of China[2017YFB0310403] ; Natural Science Foundation of China[21601192] ; Natural Science Foundation of China[21878310] ; National Key Research and Development Projects (Intergovernmental International Cooperation in Science and Technology Innovation Program)[2018YFE003400]
WOS Research AreaChemistry ; Electrochemistry ; Energy & Fuels
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels
Funding OrganizationNational Key Research and Development Program of China ; Natural Science Foundation of China ; National Key Research and Development Projects (Intergovernmental International Cooperation in Science and Technology Innovation Program)
WOS IDWOS:000752466900004
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/51921
Collection中国科学院过程工程研究所
Corresponding AuthorYu, Jian; Xu, Guangwen
Affiliation1.Sinopec Res Inst Petr Proc, Beijing 100083, Peoples R China
2.Shenyang Univ Chem Technol, Inst Ind Chem & Energy Technol, Shenyang 110142, Peoples R China
3.Zhongye Changtian Int Engn Co Ltd, Changsha 410205, Hunan, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Geng, Sulong,Zhang, Zhanguo,Li, Junjie,et al. Catalytic behavior in CH4 decomposition of catalysts derived from red mud: Impact of residual Na2O[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2022,47(12):7836-7845.
APA Geng, Sulong.,Zhang, Zhanguo.,Li, Junjie.,Qian, Jianguo.,Liu, Jiao.,...&Xu, Guangwen.(2022).Catalytic behavior in CH4 decomposition of catalysts derived from red mud: Impact of residual Na2O.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,47(12),7836-7845.
MLA Geng, Sulong,et al."Catalytic behavior in CH4 decomposition of catalysts derived from red mud: Impact of residual Na2O".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 47.12(2022):7836-7845.
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