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Limestone Calcination with CO2 Capture (III): Characteristics of Coal Combustion during Limestone Decomposition
Wang, Yin1,2; Lin, Shiying3; Suzuki, Yoshizo1; Wang, Y
2009-05-01
Source PublicationENERGY & FUELS
ISSN0887-0624
Volume23Issue:0Pages:2804-2809
AbstractIn this study, the combustion characteristics of coal in CO2/O-2 and steam/CO2/O-2 atmospheres were investigated during limestone decomposition in a continuously operating fluidized bed reactor for CO2 capture. The results show that the variations and concentrations of CO, CH4, and H-2 in the exhaust gas of the reactor in the steam/CO2/O-2 atmosphere were smaller than those in the CO2/O-2 atmosphere. Because of steam dilution, the CO2 concentration in the bed was lower in the steam/CO2/O-2 atmosphere than that in the CO2/O-2 atmosphere, and the effect of differential pressure variation on limestone decomposition in the fluidized bed was less pronounced in the steam/CO2/O-2 atmosphere than that in the CO2/O-2 atmosphere. Additionally, N2O emission was detected only in the CO2/O-2 atmosphere, and the conversion of N to NO in the steam dilution atmosphere was of a smaller magnitude than that observed in the CO2/O-2 atmosphere. We also found that the conversion Of S to SO2 in the steam/CO2/O-2 atmosphere was lower than that observed in the CO2/O-2 atmosphere. The contents of sulfur, SiO2, and Al2O3 were much higher in solid samples located in the cyclone than in the overflow holder in both steam/CO2/O-2 and CO2/O-2 atmospheres. Finally, the hydration and carbonation reactivities of CaO produced in the steam/CO2/O-2 atmosphere were better than those produced in the CO2/O-2 atmosphere.
KeywordHydrogen-production Carbon-dioxide Behavior Gas
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/ef801105j
Indexed BySCI
Language英语
WOS KeywordHYDROGEN-PRODUCTION ; CARBON-DIOXIDE ; BEHAVIOR ; GAS
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
WOS IDWOS:000267416600062
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6676
Collection多相复杂系统国家重点实验室
Corresponding AuthorWang, Y
Affiliation1.Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058569, Japan
2.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China
3.Japan Coal Energy Ctr, Minato Ku, Tokyo 1080073, Japan
Recommended Citation
GB/T 7714
Wang, Yin,Lin, Shiying,Suzuki, Yoshizo,et al. Limestone Calcination with CO2 Capture (III): Characteristics of Coal Combustion during Limestone Decomposition[J]. ENERGY & FUELS,2009,23(0):2804-2809.
APA Wang, Yin,Lin, Shiying,Suzuki, Yoshizo,&Wang, Y.(2009).Limestone Calcination with CO2 Capture (III): Characteristics of Coal Combustion during Limestone Decomposition.ENERGY & FUELS,23(0),2804-2809.
MLA Wang, Yin,et al."Limestone Calcination with CO2 Capture (III): Characteristics of Coal Combustion during Limestone Decomposition".ENERGY & FUELS 23.0(2009):2804-2809.
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