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A highly carbon-resistant olivine thermally fused with metallic nickel catalyst for steam reforming of biomass tar model compound
Meng, Junguang1,2,3,4; Wang, Xiaobo1,2,3; Zhao, Zengli1,2,3; Wu, Xianshuang1,2,3,4; Zheng, Anqing1,2,3; Wei, Guoqiang1,2,3,5; Huang, Zhen1,2,3; Li, Haibin1,2,3
2017
Source PublicationRSC ADVANCES
Volume7Issue:62Pages:39160-39171
AbstractOlivine has been shown to have a good catalytic effect on biomass tar, however, carbon deposition is still one of the adverse conditions that affect its activity. A highly carbon-resistant olivine-supported metallic nickel catalyst, which was synthesized using thermal fusion (TF), was tested in a fixed bed reactor for tar removal. Toluene was selected as a tar destruction model molecule. The current work evaluated three catalysts, namely, raw olivine, TF-olivine (olivine calcined at 1400 degrees C in air) and TF-Ni/olivine (TF-olivine loaded with 5% wt Ni calcined at 1400 degrees C in Ar), for toluene steam reforming and investigated the effects of reaction temperature, steam to carbon molar ratio (S/C) and weight hourly space velocity (WHSV) on toluene conversion, carbon deposition and gas composition. Catalytic activity and resistance against carbon deposition were discussed based on physiochemical properties of the catalyst, including BET surface area, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), temperature programmed reduction (TPR) and Laser Raman spectroscopy (LRS). The TF-Ni/olivine catalyst showed the best catalytic performance in terms of both toluene conversion and carbon deposition. A very low carbon deposition (less than 1%) was obtained when the S/C ratio was 0.88 and 1.02. Relative amounts of reducible Ni, Fe and Mg on the surface played a significant role in the catalytic behavior. Thermal fusion at a high temperature made the interaction between active metal and olivine structure stronger. The toluene conversion increased from 73.7% to 99.6% with the reaction temperature ranged from 750 degrees C to 950 degrees C, however it decreased form 92.4% to 82.6% when the WHSV increased from 0.77 h(-1) to 1.35 h(-1), similarly it decreased slightly (96.9% to 86.2%) with the S/C ratio ranging from 0.29 to 1.02. When comparing the characteristics between fresh and spent TF-Ni/olivine, the main structure and surface topography remained unchanged.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c7ra06219b
WOS Subject ExtendedChemistry
WOS KeywordIRON ALLOY NANOPARTICLES ; DUAL FLUIDIZED-BED ; GASIFICATION PROCESS ; NI/OLIVINE CATALYST ; SUPPORTED NICKEL ; XPS SPECTRA ; NI ; REMOVAL ; TOLUENE ; OPTIMIZATION
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(51506208) ; Guangdong Province "Pearl River Talent Program" ; Science and Technology Projects of Guangdong(2015A020215023) ; State Key Laboratory Breeding Base of Coal Science and Technology ; Ministry of Science and Technology, Taiyuan University of Technology(MKX201701)
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000407762300049
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/16282
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.CAS Key Lab Renewable Energy, Beijing, Peoples R China
3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou, Guangdong, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
5.Taiyuan Univ Technol, Minist Sci & Technol, State Key Lab Breeding Base Coal Sci & Technol Co, Taiyuan, Shanxi, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Meng, Junguang,Wang, Xiaobo,Zhao, Zengli,et al. A highly carbon-resistant olivine thermally fused with metallic nickel catalyst for steam reforming of biomass tar model compound[J]. RSC ADVANCES,2017,7(62):39160-39171.
APA Meng, Junguang.,Wang, Xiaobo.,Zhao, Zengli.,Wu, Xianshuang.,Zheng, Anqing.,...&Li, Haibin.(2017).A highly carbon-resistant olivine thermally fused with metallic nickel catalyst for steam reforming of biomass tar model compound.RSC ADVANCES,7(62),39160-39171.
MLA Meng, Junguang,et al."A highly carbon-resistant olivine thermally fused with metallic nickel catalyst for steam reforming of biomass tar model compound".RSC ADVANCES 7.62(2017):39160-39171.
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