Influence of biomass particle size on bed agglomeration during biomass pyrolysis in fluidised bed

© 2016.Bed agglomeration in fluidised bed was recently discovered to be an important consideration during biomass pyrolysis under the conditions pertinent to bio-oil production. The results in this study show that biomass particle size has a significant effect on bed agglomeration during biomass fas...

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Main Authors: Burton, Alan, Wu, Hongwei
Format: Journal Article
Published: Combustion Institute 2017
Online Access:http://www.sciencedirect.com/science/article/pii/S1540748916304527
http://hdl.handle.net/20.500.11937/58562
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author Burton, Alan
Wu, Hongwei
author_facet Burton, Alan
Wu, Hongwei
author_sort Burton, Alan
building Curtin Institutional Repository
collection Online Access
description © 2016.Bed agglomeration in fluidised bed was recently discovered to be an important consideration during biomass pyrolysis under the conditions pertinent to bio-oil production. The results in this study show that biomass particle size has a significant effect on bed agglomeration during biomass fast pyrolysis at 500. °C. Sand loading, which is defined as the mass of sand sticking to the biomass particles normalised to the total mass of biomass fed, is used for quantifying the interaction between the pyrolysing biomass particle and sand in fluidised bed to form bed agglomerates. Under the experimental conditions, at biomass particle sizes =430. µm, sand loading increases with increasing biomass particle size. At biomass particle sizes >430. µm, sand loading decreases with further increase in biomass particle size. The results further show that mass transfer of the sticky agent produced from biomass pyrolysis plays a key role in bed agglomeration. At small particle sizes (=430. µm), sand loading is dominantly influenced by convective mass transfer of sticky agent while at large particle sizes >430. µm), sand loading is mainly controlled by diffusive mass transfer of sticky agent within the pyrolysing biomass particle.
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institution Curtin University Malaysia
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last_indexed 2025-11-14T10:13:26Z
publishDate 2017
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spelling curtin-20.500.11937-585622022-10-26T08:20:59Z Influence of biomass particle size on bed agglomeration during biomass pyrolysis in fluidised bed Burton, Alan Wu, Hongwei © 2016.Bed agglomeration in fluidised bed was recently discovered to be an important consideration during biomass pyrolysis under the conditions pertinent to bio-oil production. The results in this study show that biomass particle size has a significant effect on bed agglomeration during biomass fast pyrolysis at 500. °C. Sand loading, which is defined as the mass of sand sticking to the biomass particles normalised to the total mass of biomass fed, is used for quantifying the interaction between the pyrolysing biomass particle and sand in fluidised bed to form bed agglomerates. Under the experimental conditions, at biomass particle sizes =430. µm, sand loading increases with increasing biomass particle size. At biomass particle sizes >430. µm, sand loading decreases with further increase in biomass particle size. The results further show that mass transfer of the sticky agent produced from biomass pyrolysis plays a key role in bed agglomeration. At small particle sizes (=430. µm), sand loading is dominantly influenced by convective mass transfer of sticky agent while at large particle sizes >430. µm), sand loading is mainly controlled by diffusive mass transfer of sticky agent within the pyrolysing biomass particle. 2017 Journal Article http://hdl.handle.net/20.500.11937/58562 10.1016/j.proci.2016.08.063 http://www.sciencedirect.com/science/article/pii/S1540748916304527 http://purl.org/au-research/grants/arc/DP150104486 Combustion Institute restricted
spellingShingle Burton, Alan
Wu, Hongwei
Influence of biomass particle size on bed agglomeration during biomass pyrolysis in fluidised bed
title Influence of biomass particle size on bed agglomeration during biomass pyrolysis in fluidised bed
title_full Influence of biomass particle size on bed agglomeration during biomass pyrolysis in fluidised bed
title_fullStr Influence of biomass particle size on bed agglomeration during biomass pyrolysis in fluidised bed
title_full_unstemmed Influence of biomass particle size on bed agglomeration during biomass pyrolysis in fluidised bed
title_short Influence of biomass particle size on bed agglomeration during biomass pyrolysis in fluidised bed
title_sort influence of biomass particle size on bed agglomeration during biomass pyrolysis in fluidised bed
url http://www.sciencedirect.com/science/article/pii/S1540748916304527
http://www.sciencedirect.com/science/article/pii/S1540748916304527
http://hdl.handle.net/20.500.11937/58562