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Evolution of Inherent Oxygen in Solid Fuels during Pyrolysis
Dong, Pengwei1; Chen, Gan2; Zeng, Xi1; Chu, Mo2; Gao, Shiqiu1; Xu, Guangwen1
2015-04-01
Source PublicationENERGY & FUELS
ISSN0887-0624
Volume29Issue:4Pages:2268-2276
AbstractInherent oxygen in solid fuels is various in content and occurrence mode related to other elements. Three samples with different inherent oxygen contents were pyrolyzed in an externally heated fixed-bed reactor to characterize their oxygen transformation among solid, water, and gas products in addition to understanding their pyrolysis performances. It was found that the oxygen retained in the solid char decreased with increasing temperature. About 30-50% of the inherent oxygen has transferred into water after pyrolysis at 800 degrees C. The major oxygen-containing gaseous product was CO for the low-oxygen fuel, such as Fugu bituminous coal (FG), whereas this was mainly CO2 for the oxygen-rich fuels, such as Shengli lignite (SL) and herb residue (HR). Fourier transform infrared (FTIR) spectra were taken to analyze the evolution of five oxygen-containing functional groups. The C=O bond existing in ester and carboxyl/carbonyl groups is easy to decompose and is nearly eliminated at 600 degrees C. The hydroxyl group was formed at a high temperature after decomposition at a low temperature, while the C-O single bond in the ether group increased because of the cleavage of C=O bonds.
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/ef5028839
Indexed BySCI
Language英语
WOS KeywordALKALINE-EARTH METALS ; VICTORIAN BROWN-COAL ; ALIPHATIC-CH GROUPS ; FT-IR ; INFRARED-SPECTROSCOPY ; FUNCTIONAL-GROUPS ; RICH OXIDATION ; ORGANIC OXYGEN ; BIOMASS ; GASIFICATION
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
WOS IDWOS:000353251800024
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/16744
Collection多相复杂系统国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.China Univ Min & Technol, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Dong, Pengwei,Chen, Gan,Zeng, Xi,et al. Evolution of Inherent Oxygen in Solid Fuels during Pyrolysis[J]. ENERGY & FUELS,2015,29(4):2268-2276.
APA Dong, Pengwei,Chen, Gan,Zeng, Xi,Chu, Mo,Gao, Shiqiu,&Xu, Guangwen.(2015).Evolution of Inherent Oxygen in Solid Fuels during Pyrolysis.ENERGY & FUELS,29(4),2268-2276.
MLA Dong, Pengwei,et al."Evolution of Inherent Oxygen in Solid Fuels during Pyrolysis".ENERGY & FUELS 29.4(2015):2268-2276.
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