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Continuous pyrolysis and catalytic upgrading of corncob hydrolysis residue in the combined system of auger reactor and downstream fixed-bed reactor
Li, Yuping1; Li, Bosong1,2; Zhang, Xinghua1; Chen, Lungang1; Zhang, Qi1; Wang, Tiejun1; Ma, Longlong1
2016-08-15
Source PublicationENERGY CONVERSION AND MANAGEMENT
Volume122Pages:1-9
AbstractContinuous pyrolysis of corncob hydrolysis residue, coupled with ex situ catalytic upgrading of the pyrolysis vapor, was investigated in the combined system of an auger reactor and a downstream fixed-bed reactor. The effect of the zeolite catalyst, USY (ultrastable Y) and HZSM-5 (Si/Al=25, 38) and catalytic temperature on the raw bio-oil upgrading were discussed. The results showed the strong acidity of porous zeolite was essential for catalytic deoxygenation during upgrading pyrolysis vapor. HZSM-5 (25), with the strong acidity and acidic sites, had favored the deoxygenation conversion of carbonyl/carboxyl-containing oxygenates in the pyrolysis vapor, which decreased its content to 2.3 area% via the GC-MS analysis of the upgraded bio-oil. Mono-phenols (phenol and alkylphenols) were enhanced to 53.2 area% over HZSM-5 (25), as compared with that of 17.3 area% during non-catalysis process. The addition of ex situ catalytic upgrading had improved the quality of organic big-oil at the expense of its yield. Coke formation on the strong acidic sites by condensation of intermediates is detrimental to organic bio-oil yield. The increase of catalysis temperature at the fixed-bed reactor decreased oxygenate compounds to 7.1 area%, 23 area% and 1.9 area% at 450 degrees C, 550 degrees C and 650 degrees C, respectively, with 0.75 s of vapor residence time. The TG/DTG/DSC characterization of the used HZSM-5 (25) implied that the coke had deposited on the surface of HZSM-5 (25), which could be removed by combustion to recover its activity. (C) 2016 Elsevier Ltd. All rights reserved.
SubtypeArticle
KeywordPyrolysis Ex Situ Catalysis Bio-oil Upgrading Hzsm-5 Mono-phenols And Aromatics
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.enconman.2016.05.055
WOS Subject ExtendedThermodynamics ; Energy & Fuels ; Mechanics ; Physics
WOS KeywordMODIFIED ZSM-5 ; CO-PYROLYSIS ; DOUGLAS-FIR ; BIO-OIL ; BIOMASS ; LIGNIN ; VAPOR ; WOOD ; ZEOLITE ; METHANOL
Indexed BySCI
Language英语
WOS SubjectThermodynamics ; Energy & Fuels ; Mechanics ; Physics, Nuclear
WOS IDWOS:000379632600001
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Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/11782
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
2.CATAS, Trop Energy & Ecol Res Ctr, Guangzhou Expt Stn, Guangzhou 510140, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Li, Yuping,Li, Bosong,Zhang, Xinghua,et al. Continuous pyrolysis and catalytic upgrading of corncob hydrolysis residue in the combined system of auger reactor and downstream fixed-bed reactor[J]. ENERGY CONVERSION AND MANAGEMENT,2016,122:1-9.
APA Li, Yuping.,Li, Bosong.,Zhang, Xinghua.,Chen, Lungang.,Zhang, Qi.,...&Ma, Longlong.(2016).Continuous pyrolysis and catalytic upgrading of corncob hydrolysis residue in the combined system of auger reactor and downstream fixed-bed reactor.ENERGY CONVERSION AND MANAGEMENT,122,1-9.
MLA Li, Yuping,et al."Continuous pyrolysis and catalytic upgrading of corncob hydrolysis residue in the combined system of auger reactor and downstream fixed-bed reactor".ENERGY CONVERSION AND MANAGEMENT 122(2016):1-9.
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