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Article: Simulation of agglomeration/defluidization inhibition process in aluminum-sodium system by experimental and thermodynamic approaches
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TitleSimulation of agglomeration/defluidization inhibition process in aluminum-sodium system by experimental and thermodynamic approaches
 
AuthorsKuo, JH3
Shih, K1
Lin, CL2
Wey, MY3
 
KeywordsAgglomeration inhibition
Fluidized bed
Incineration
Prediction model
Addition of Al
 
Issue Date2012
 
PublisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/powtec
 
CitationPowder Technology, 2012, v. 224, p. 395-403 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.powtec.2012.03.036
 
AbstractThis study modifies a defluidization time prediction model under the influence of agglomeration inhibition provided by the addition of Al into a fluidized bed system. Operational parameters, such as the Al/Na ratio, temperature, gas velocity, and the particle size of bed materials, were considered by the prediction model developed by Lin et al., and thermodynamic consideration of the Al-Na-Si reaction system revealed the agglomeration mechanism. An exponential decay of f N was found with the increase of the Al/Na ratio, and the data analysis gave a regression formula of f N=0.0601+0.4983*exp [-4.4183*(Al/Na ratio)], with an R 2 of 0.9972. The simulation data generally match well with the experimental results, particularly at lower operation temperatures and Geldart B group's particles, with acceptable average errors of -8.4% and -4.9%, respectively. However, relatively poor matches were found in the cases with different gas velocities, a higher operation temperature (900°C), and a larger particle size (Geldart D group) of bed materials. © 2012 Elsevier B.V..
 
ISSN0032-5910
2012 Impact Factor: 2.024
2012 SCImago Journal Rankings: 0.770
 
DOIhttp://dx.doi.org/10.1016/j.powtec.2012.03.036
 
ISI Accession Number IDWOS:000304792000052
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorKuo, JH
 
dc.contributor.authorShih, K
 
dc.contributor.authorLin, CL
 
dc.contributor.authorWey, MY
 
dc.date.accessioned2012-06-26T06:06:38Z
 
dc.date.available2012-06-26T06:06:38Z
 
dc.date.issued2012
 
dc.description.abstractThis study modifies a defluidization time prediction model under the influence of agglomeration inhibition provided by the addition of Al into a fluidized bed system. Operational parameters, such as the Al/Na ratio, temperature, gas velocity, and the particle size of bed materials, were considered by the prediction model developed by Lin et al., and thermodynamic consideration of the Al-Na-Si reaction system revealed the agglomeration mechanism. An exponential decay of f N was found with the increase of the Al/Na ratio, and the data analysis gave a regression formula of f N=0.0601+0.4983*exp [-4.4183*(Al/Na ratio)], with an R 2 of 0.9972. The simulation data generally match well with the experimental results, particularly at lower operation temperatures and Geldart B group's particles, with acceptable average errors of -8.4% and -4.9%, respectively. However, relatively poor matches were found in the cases with different gas velocities, a higher operation temperature (900°C), and a larger particle size (Geldart D group) of bed materials. © 2012 Elsevier B.V..
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationPowder Technology, 2012, v. 224, p. 395-403 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.powtec.2012.03.036
 
dc.identifier.doihttp://dx.doi.org/10.1016/j.powtec.2012.03.036
 
dc.identifier.epage403
 
dc.identifier.hkuros205541
 
dc.identifier.isiWOS:000304792000052
 
dc.identifier.issn0032-5910
2012 Impact Factor: 2.024
2012 SCImago Journal Rankings: 0.770
 
dc.identifier.scopuseid_2-s2.0-84860524936
 
dc.identifier.spage395
 
dc.identifier.urihttp://hdl.handle.net/10722/150670
 
dc.identifier.volume224
 
dc.languageeng
 
dc.publisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/powtec
 
dc.publisher.placeSwitzerland
 
dc.relation.ispartofPowder Technology
 
dc.relation.referencesReferences in Scopus
 
dc.subjectAgglomeration inhibition
 
dc.subjectFluidized bed
 
dc.subjectIncineration
 
dc.subjectPrediction model
 
dc.subjectAddition of Al
 
dc.titleSimulation of agglomeration/defluidization inhibition process in aluminum-sodium system by experimental and thermodynamic approaches
 
dc.typeArticle
 
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Author Affiliations
  1. The University of Hong Kong
  2. National University of Kaohsiung
  3. National Chung Hsing University