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Chemical looping gasification coupled with steam reforming of biomass using NiFe2O4: Kinetic analysis of DAEM-TI, thermodynamic simulation of OC redox, and a loop test
Lin, Yan1,2,3; Wang, Haitao1,2,3; Huang, Zhen1,2,3; Liu, Ming1,2,3,4; Wei, Guoqiang1,2,3; Zhao, Zengli1,2,3; Li, Haibin1,2,3; Fang, Yitian5
2020-09-01
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
Volume395Pages:12
Corresponding AuthorHuang, Zhen(huangzhen@ms.giec.ac.cn)
AbstractNiFe2O4 is one of the best oxygen carriers (OCs) for the biomass chemical looping gasification coupled with steam reforming. The kinetics analysis of biomass and NiFe2O4 is helpful for understanding their mechanism of interaction. In this work, a thermogravimetric analyzer, and distributed activation energy model based on a time integral (DAEMTI) were used to study the effect of the OC/biomass ratio and atmosphere on gasification. In addition, thermodynamic analysis by Factsage and a 15-loop test of the OC in a fixed bed reactor were applied to investigate the NiFe2O4 transformation and its multiple redox performance. The kinetic analysis showed that gasification included: i) moisture loss of similar to 100 kJ/mol, ii) devolatilization of 150 similar to 175 kJ/mol, and iii) char gasification of 250 similar to 350 kJ/mol. There was a transition that was accompanied by a slight reduction before a rapid increment of activation energy in adjacent stages. This may be attributed to the difference between the various energy barriers of reactions. The simulation results of DAEM-TI matched the experimental data well, and all adjusted coefficients of determination exceeded 98%. The best ratio of OC/biomass was 5/5 for optimal gasification that avoided overoxidation. The mass rebound of H2O on char gasification was higher than that of CO2, which indicated H2O had stronger oxidizability than CO2. Thermodynamic simulation showed that spinel NiFe2O4 converted into an FCC Fe(Ni) alloy during gasification. However, CO2 and H2O were only capable of restoration to Fe3O4 and could not oxidize Ni to Ni2+, so calcining in air was necessary for NiFe2O4 restoration. The performance of restored NiFe2O4 remained high and even slightly improved compared to that of the fresh NiFe2O4 after 15 redox loops.
KeywordChemical looping gasification Distributed activation energy model with a time integral_(DAEM-TI) Kinetics Oxygen carrier Redox loops Iron nickel oxide
DOI10.1016/j.cej.2020.125046
WOS KeywordACTIVATION-ENERGY MODEL ; CO-PYROLYSIS KINETICS ; OXYGEN CARRIER ; SYNGAS PRODUCTION ; ACETIC-ACID ; COMBUSTION ; REACTIVITY ; OXIDES ; DECOMPOSITION ; CATALYSTS
Indexed BySCI
Language英语
Funding ProjectDNL Cooperation Fund, CAS, China[DNL180205] ; National Natural Science Foundation of China, China[51776210] ; National Key Research and Development Program of China, China[2018YFB0605405] ; Youth Innovation Promotion Association, CAS, China[2018384] ; Natural Science Foundation of Guangdong Province, China[2018A0303130012] ; Science & Technology Project of Guangzhou, China[201707010202] ; CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, China[E0290106] ; Foundation and Applied Foundation research of Guangdong Province, China[2019A1515110828]
WOS Research AreaEngineering
Funding OrganizationDNL Cooperation Fund, CAS, China ; National Natural Science Foundation of China, China ; National Key Research and Development Program of China, China ; Youth Innovation Promotion Association, CAS, China ; Natural Science Foundation of Guangdong Province, China ; Science & Technology Project of Guangzhou, China ; CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, China ; Foundation and Applied Foundation research of Guangdong Province, China
WOS SubjectEngineering, Environmental ; Engineering, Chemical
WOS IDWOS:000537387000009
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/27218
Collection中国科学院广州能源研究所
Corresponding AuthorHuang, Zhen
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
2.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China
3.Guangdong Prov Key Lab New Renewable Energy Res &, Guangzhou 510640, Peoples R China
4.Northeast Elect Power Univ, Sch Energy & Power Engn, Jilin, Jilin, Peoples R China
5.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Lin, Yan,Wang, Haitao,Huang, Zhen,et al. Chemical looping gasification coupled with steam reforming of biomass using NiFe2O4: Kinetic analysis of DAEM-TI, thermodynamic simulation of OC redox, and a loop test[J]. CHEMICAL ENGINEERING JOURNAL,2020,395:12.
APA Lin, Yan.,Wang, Haitao.,Huang, Zhen.,Liu, Ming.,Wei, Guoqiang.,...&Fang, Yitian.(2020).Chemical looping gasification coupled with steam reforming of biomass using NiFe2O4: Kinetic analysis of DAEM-TI, thermodynamic simulation of OC redox, and a loop test.CHEMICAL ENGINEERING JOURNAL,395,12.
MLA Lin, Yan,et al."Chemical looping gasification coupled with steam reforming of biomass using NiFe2O4: Kinetic analysis of DAEM-TI, thermodynamic simulation of OC redox, and a loop test".CHEMICAL ENGINEERING JOURNAL 395(2020):12.
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