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Chemical looping reforming of toluene as a biomass tar model compound over two types of oxygen carriers: 2CuO-2NiO/Al2O3 and CaFe2O4
Wang, Zhiqi1; Zhu, Min1; He, Tao1; Zhang, Jinzhi1; Wu, Jingli1; Tian, Hanjing2; Wu, Jinhu1
2018-06-15
Source PublicationFUEL
ISSN0016-2361
Volume222Pages:375-384
AbstractChemical looping reforming/gasification of toluene, the model compound representing biomass tar, was studied by using two oxygen carriers, 2CuO-2NiO/Al2O3 (molar ratio) and CaFe2O4. Their reaction performances were evaluated in a TG-FTIR and a laboratory-scale fixed bed reactor. The active lattice oxygen of the 2CuO-2NiO/Al2O3 oxygen carrier demonstrated excellent reactivity and completely oxidized toluene to CO2 at 600-700 degrees C, while the fixed bed reactor data indicated that 2CuO-2NiO/Al2O3 oxygen carrier could catalyze the cracking of toluene to produce H-2 after loss of lattice oxygen. The CaFe2O4 oxygen carrier exhibited a good performance of chemical looping partial oxidation of toluene to CO and H-2 with a fairly high reactivity. Over CaFe2O4 oxygen carrier, the CO and H-2 dominated reaction products in the temperature range of 800-900 degrees C except at the startup stage. Catalytic cracking of toluene by CaFe2O4 to produce H-2 was also observed after partial loss of lattice oxygen. Stable performance of CaFe2O4 with high reactivity to syngas (CO and H-2) was demonstrated during a 3cyle test in the fixed bed reactor. After reduction of action with toluene, scanning electron microscopy (SEM) and X-ray diffraction (XRD) indicated that 2CuO-2NiO/Al2O3 was reduced to metallic copper and nickel with the mixture of NiAl2O4, and CaFe2O4 was reduced to metallic iron and CaO. In summary, two oxygen carriers displayed high toluene conversion at the beginning stage and the conversion of toluene increased to about 100% in the subsequent stage.
SubtypeArticle
KeywordBiomass Gasification Tar Chemical Looping Reforming Toluene Oxygen Carriers
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.fuel.2018.02.164
WOS KeywordSYNTHESIS GAS GENERATION ; OF-THE-ART ; COAL-GASIFICATION ; PRODUCER GAS ; LIQUID FUELS ; OXIDES ; CATALYST ; HYDROGEN ; METHANE ; ELIMINATION
Indexed BySCI
Language英语
WOS Research AreaEnergy & Fuels ; Engineering
Funding OrganizationNational Key R&D Program of China(2016YFE0108400) ; NSF-NSFC collaborative research(1511818) ; China Postdoctoral Science Foundation(2017M612368)
WOS SubjectEnergy & Fuels ; Engineering, Chemical
WOS IDWOS:000429422800038
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/10796
Collection热化学转化团队
Corresponding AuthorWang, Zhiqi; Wu, Jinhu
Affiliation1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao 266101, Peoples R China
2.West Virginia Univ, Dept Chem Engn, Morgantown, WV 26505 USA
Recommended Citation
GB/T 7714
Wang, Zhiqi,Zhu, Min,He, Tao,et al. Chemical looping reforming of toluene as a biomass tar model compound over two types of oxygen carriers: 2CuO-2NiO/Al2O3 and CaFe2O4[J]. FUEL,2018,222:375-384.
APA Wang, Zhiqi.,Zhu, Min.,He, Tao.,Zhang, Jinzhi.,Wu, Jingli.,...&Wu, Jinhu.(2018).Chemical looping reforming of toluene as a biomass tar model compound over two types of oxygen carriers: 2CuO-2NiO/Al2O3 and CaFe2O4.FUEL,222,375-384.
MLA Wang, Zhiqi,et al."Chemical looping reforming of toluene as a biomass tar model compound over two types of oxygen carriers: 2CuO-2NiO/Al2O3 and CaFe2O4".FUEL 222(2018):375-384.
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