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Release of alkali metals during co-firing biomass and coal
Wu DY; Wang YH; Wang Y; Li S(李森); Wei XL(魏小林); Wei, XL (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
Source PublicationRENEWABLE ENERGY
2016
Volume96Pages:91-97
ISSN0960-1481
AbstractThe release of alkali metals is investigated by means of ash element measurement and chemical equilibrium calculation during co-firing biomass (cornstalk derived fuel) and coal. The experiments are operated under different mass blending fraction and temperature conditions. With increasing cornstalk fraction, the normalized ash content decreases according to a quadratic curve because the formation of alkali aluminosilicate may result in more elements being retained in ash. Similarly, the release ratios of K, Na, and S do not change linearly with the variation of cornstalk fraction either, which are suppressed significantly by the interaction of biomass and coal ashes. For the effect of CaO additive, the release ratios of K and Na increase with its enhancement. The equilibrium analysis is used to predict and evaluate the release of alkali metals. The release of alkali metals enhances with the increase of temperature and cornstalk fraction. For silicon-lean blending fuels, adding Ca will decrease HCl(g) and release more KCl(g) and KOH(g) in both fuel-rich and air-rich conditions. More KCl(g) and NaCl(g) will be formed with increasing Ca/(S + 0.5Cl) ratio due to the formation of CaSiO3(s) and the reduction of alkali aluminosilicate. (C) 2016 Elsevier Ltd. All rights reserved.
KeywordRelease Alkali Metals Co-firing Biomass
DOI10.1016/j.renene.2016.04.047
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000379271800009
WOS KeywordRelease ; Alkali metals ; Co-firing ; Biomass
WOS Research AreaScience & Technology - Other Topics ; Energy & Fuels
WOS SubjectGREEN & SUSTAINABLE SCIENCE & TECHNOLOGY ; Energy & Fuels
Funding OrganizationFinancial support by the Chinese Natural Science Foundation (No. 91130028 & No. 51006115) is gratefully acknowledged. The authors also thank Mr. Hongming Jiang, Dr. Xiaofeng Guo, as well as Prof. Qinggang Lv and Yongjie Na for their help on this work.
DepartmentLHD高效洁净燃烧(CPCR)
Classification一类
RankingFalse
Citation statistics
Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59573
Collection高温气体动力学国家重点实验室
Corresponding AuthorWei, XL (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Wu DY,Wang YH,Wang Y,et al. Release of alkali metals during co-firing biomass and coal[J]. RENEWABLE ENERGY,2016,96:91-97.
APA Wu DY,Wang YH,Wang Y,Li S,Wei XL,&Wei, XL .(2016).Release of alkali metals during co-firing biomass and coal.RENEWABLE ENERGY,96,91-97.
MLA Wu DY,et al."Release of alkali metals during co-firing biomass and coal".RENEWABLE ENERGY 96(2016):91-97.
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