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dc.contributor.authorAkhtar, M.
dc.contributor.authorZhang, Shu
dc.contributor.authorShao, X.
dc.contributor.authorDang, H.
dc.contributor.authorLiu, Y.
dc.contributor.authorLi, T.
dc.contributor.authorZhang, Lei
dc.contributor.authorLi, Chun-Zhu
dc.date.accessioned2018-12-13T09:10:20Z
dc.date.available2018-12-13T09:10:20Z
dc.date.created2018-12-12T02:47:03Z
dc.date.issued2018
dc.identifier.citationAkhtar, M. and Zhang, S. and Shao, X. and Dang, H. and Liu, Y. and Li, T. and Zhang, L. et al. 2018. Kinetic compensation effects in the chemical reaction-controlled regime and mass transfer-controlled regime during the gasification of biochar in O2. Fuel Processing Technology. 181: pp. 25-32.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/71508
dc.identifier.doi10.1016/j.fuproc.2018.09.009
dc.description.abstract

© 2018 Elsevier B.V. This study aims to investigate the kinetic compensation effects during the char-O2reaction in a fluidised-bed reactor for two particle sizes of 0.80–1.0 mm and 2.0–3.35 mm. The rate of char-O2reaction was determined by analysing the gasification product gas composition in a quadrupole mass spectrometer. The char-O2reaction exhibited different kinetic compensation effects between apparent activation energy and apparent pre-exponential factor in the kinetics-controlled, diffusion-controlled and mixed regimes for both particle sizes. The same reaction mechanism is followed during the char-O2reaction in the kinetic regime at same or at different pyrolysis temperatures as revealed by the kinetic compensation effects. In the mixed regime, higher diffusion limitations increased the m and c values in the kinetic compensation effect lnAapp= mEapp+ c for any given particle size. Due to higher rates of reaction at higher char conversions, the char-O2reaction switched from kinetics-controlled to mixed regimes, resulting in higher slopes ‘m’ and y-intercepts ‘c’ in the kinetic compensation effects. The absence of isokinetic temperature at higher conversions indicates that char properties changed significantly at higher conversions compared with those at lower conversions.

dc.publisherElsevier
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/arc/DP180101788
dc.titleKinetic compensation effects in the chemical reaction-controlled regime and mass transfer-controlled regime during the gasification of biochar in O2
dc.typeJournal Article
dcterms.source.volume181
dcterms.source.startPage25
dcterms.source.endPage32
dcterms.source.issn0378-3820
dcterms.source.titleFuel Processing Technology
curtin.accessStatusFulltext not available


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