IMECH-IR  > 力学所知识产出(1956-2008)
Behaviour of Gaseous Chlorine and Alkali Metals During Biomass Thermal Utilisation
Wei XL(魏小林); Schnell U; Hein KRG; Schnell, U (reprint author), Univ Stuttgart, Inst Proc Engn & Power Plant Technol, IVD, Pfaffenwaldring 23, D-70569 Stuttgart, Germany.
Source PublicationFuel
2005
Volume84Issue:7-8Pages:841-848
ISSN0016-2361
AbstractThe behaviour of gaseous chlorine and alkali metals of three sorts of biomass (Danish straw, Swedish wood, and sewage sludge) in combustion or gasification is investigated by the chemical equilibrium calculating tool. The ranges of temperature, air-to-fuel ratio, and pressure are varied widely in the calculations (T=400-1800 K, gimel=0-1.8, and P=0.1-2.0 MPa). Results show that the air excess coefficient only has less significant influence on the release of gaseous chlorine and potassium or sodium during combustion. However, in biomass gasification, the influence of the air excess coefficient is very significant. Increasing air excess coefficient enhances the release of HCl(g), KOH(g), or NaOH(g) as well as it reduces the formation of KCl(g), NaCl(g), K(g), or Na(g). In biomass combustion or straw and sludge gasification, increasing pressure enhances the release of HCl(g) and reduces the amount of KCI(g), NaCl(g), KCI(g), or NaOH(g) at high temperatures. However, during wood gasification, the pressure enhances the formation of KOH(g) and KCI(g) and reduces the release of K(g) and HCl(g) at high temperatures. During wood and sewage sludge pyrolysis, nitrogen addition enhances the formation of KCN(g) and NaCN(g) and reduces the release of K(g) and Na(g). Kaolin addition in straw combustion may enhance the formation of potassium aluminosilicate in ash and significantly reduces the release of KCl(g) and KOH(g) and increases the formation of HCl(g).
Subject Area力学
DOI10.1016/j.fuel.2004.11.022
Indexed BySCI
Language英语
WOS IDWOS:000227650800008
WOS KeywordFLUIDIZED-BED COMBUSTION ; DIBENZO-P-DIOXINS ; ASH DEPOSITION ; STRAW PYROLYSIS ; FIRED BOILERS ; GAS-PHASE ; COAL ; GASIFICATION ; COCOMBUSTION ; POTASSIUM
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
Citation statistics
Cited Times:248[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/17106
Collection力学所知识产出(1956-2008)
Corresponding AuthorSchnell, U (reprint author), Univ Stuttgart, Inst Proc Engn & Power Plant Technol, IVD, Pfaffenwaldring 23, D-70569 Stuttgart, Germany.
Recommended Citation
GB/T 7714
Wei XL,Schnell U,Hein KRG,et al. Behaviour of Gaseous Chlorine and Alkali Metals During Biomass Thermal Utilisation[J]. Fuel,2005,84,7-8,:841-848.
APA 魏小林,Schnell U,Hein KRG,&Schnell, U .(2005).Behaviour of Gaseous Chlorine and Alkali Metals During Biomass Thermal Utilisation.Fuel,84(7-8),841-848.
MLA 魏小林,et al."Behaviour of Gaseous Chlorine and Alkali Metals During Biomass Thermal Utilisation".Fuel 84.7-8(2005):841-848.
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