Multi-fluid reactive modeling of fluidized bed pyrolysis process
A multiphase reactive model of biomass pyrolysis process has been implemented by integrating the reaction kinetics of the thermo-chemical decomposition of biomass with the hydrodynamics of the fluidized bed. The model was validated with the experimental data of biomass pyrolysis in the presence of a...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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Pergamon
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/6520 |
| _version_ | 1848745098668408832 |
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| author | Sharma, Abhishek Wang, Shaobin Pareek, Vishnu Yang, H. Zhang, D. |
| author_facet | Sharma, Abhishek Wang, Shaobin Pareek, Vishnu Yang, H. Zhang, D. |
| author_sort | Sharma, Abhishek |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A multiphase reactive model of biomass pyrolysis process has been implemented by integrating the reaction kinetics of the thermo-chemical decomposition of biomass with the hydrodynamics of the fluidized bed. The model was validated with the experimental data of biomass pyrolysis in the presence of a sand bed. The simulation results were examined to analyze the effect of reactor temperature, superficial gas velocity and biomass particle size on the bed hydrodynamics and product yields. It was found that at temperatures higher than 500 °C, there was a significant conversion of primary tar into NCG (non-condensable gases) due to thermal cracking inside the reactor. However, the increase in superficial gas velocity led to higher concentration of tar due to lower residence time for tar cracking reactions. Any increase in biomass particle size reduced the yield of volatile products due to decrease in the rate of heat transfer, which in turn increased the yield of biochar. |
| first_indexed | 2025-11-14T06:11:58Z |
| format | Journal Article |
| id | curtin-20.500.11937-6520 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:11:58Z |
| publishDate | 2015 |
| publisher | Pergamon |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-65202017-09-13T15:53:52Z Multi-fluid reactive modeling of fluidized bed pyrolysis process Sharma, Abhishek Wang, Shaobin Pareek, Vishnu Yang, H. Zhang, D. Pyrolysis Fluidized bed Computational fluid dynamics Multiphase Biomass A multiphase reactive model of biomass pyrolysis process has been implemented by integrating the reaction kinetics of the thermo-chemical decomposition of biomass with the hydrodynamics of the fluidized bed. The model was validated with the experimental data of biomass pyrolysis in the presence of a sand bed. The simulation results were examined to analyze the effect of reactor temperature, superficial gas velocity and biomass particle size on the bed hydrodynamics and product yields. It was found that at temperatures higher than 500 °C, there was a significant conversion of primary tar into NCG (non-condensable gases) due to thermal cracking inside the reactor. However, the increase in superficial gas velocity led to higher concentration of tar due to lower residence time for tar cracking reactions. Any increase in biomass particle size reduced the yield of volatile products due to decrease in the rate of heat transfer, which in turn increased the yield of biochar. 2015 Journal Article http://hdl.handle.net/20.500.11937/6520 10.1016/j.ces.2014.11.019 Pergamon restricted |
| spellingShingle | Pyrolysis Fluidized bed Computational fluid dynamics Multiphase Biomass Sharma, Abhishek Wang, Shaobin Pareek, Vishnu Yang, H. Zhang, D. Multi-fluid reactive modeling of fluidized bed pyrolysis process |
| title | Multi-fluid reactive modeling of fluidized bed pyrolysis process |
| title_full | Multi-fluid reactive modeling of fluidized bed pyrolysis process |
| title_fullStr | Multi-fluid reactive modeling of fluidized bed pyrolysis process |
| title_full_unstemmed | Multi-fluid reactive modeling of fluidized bed pyrolysis process |
| title_short | Multi-fluid reactive modeling of fluidized bed pyrolysis process |
| title_sort | multi-fluid reactive modeling of fluidized bed pyrolysis process |
| topic | Pyrolysis Fluidized bed Computational fluid dynamics Multiphase Biomass |
| url | http://hdl.handle.net/20.500.11937/6520 |