Effects of feeding rate on catalytic pyrolysis of sawdust in bubbling fluidized beds
Effects of feeding rate on catalytic pyrolysis of sawdust in bubbling fluidized beds
Catalytic cracking of sawdust has been studied numerically in bubbling fluidized beds with in situ catalyst. The upgrading of bio-oil is one of the critical issues in applications of biomass pyrolysis products. Due to the interactions of multiphase flow dynamics coupled with chemical reaction, computational modelling of thermo-chemical processing of biomass can be quite complex. In current work, the online catalytic upgrading of bio-oil derived by sawdust pyrolysis is investigated. The Eulerian-Eulerian models coupled with the Kinetic Theory of Granular Flows are employed to model the multiphase flow in fluidized beds. The user defined functions (UDF) is developed based on the chemical kinetics to represent the decomposition of biomass and upgrading of bio-oil. The simulation results show that the heterogeneous reactions can perform significant effects on hydrodynamics of fluidized beds while different space time, the ratio of catalyst mass to tar flow rate, will vary the yield distribution of products.
bioenergy, catalytic pyrolysis, eurlerian, fluidized beds
218-224
Dong, Nanhang
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Gu, Sai
855fb2a2-a09f-47ce-b8ec-fb92f8f65a19
Papadikis, Kostantinos
53770649-e771-40cc-a637-5591df9b8894
Armstrong, Lindsay-Marie
db493663-2457-4f84-9646-15538c653998
Luo, Kai
040f4edf-4936-4c71-8b23-85e6b9079aa8
December 2012
Dong, Nanhang
8fb2a763-13a3-40e9-bc94-3ce06e3f381a
Gu, Sai
855fb2a2-a09f-47ce-b8ec-fb92f8f65a19
Papadikis, Kostantinos
53770649-e771-40cc-a637-5591df9b8894
Armstrong, Lindsay-Marie
db493663-2457-4f84-9646-15538c653998
Luo, Kai
040f4edf-4936-4c71-8b23-85e6b9079aa8
Dong, Nanhang, Gu, Sai, Papadikis, Kostantinos, Armstrong, Lindsay-Marie and Luo, Kai
(2012)
Effects of feeding rate on catalytic pyrolysis of sawdust in bubbling fluidized beds.
Journal of Bioprocess Engineering and Biorefinery, 1 (2), .
(doi:10.1166/jbeb.2012.1021).
Abstract
Catalytic cracking of sawdust has been studied numerically in bubbling fluidized beds with in situ catalyst. The upgrading of bio-oil is one of the critical issues in applications of biomass pyrolysis products. Due to the interactions of multiphase flow dynamics coupled with chemical reaction, computational modelling of thermo-chemical processing of biomass can be quite complex. In current work, the online catalytic upgrading of bio-oil derived by sawdust pyrolysis is investigated. The Eulerian-Eulerian models coupled with the Kinetic Theory of Granular Flows are employed to model the multiphase flow in fluidized beds. The user defined functions (UDF) is developed based on the chemical kinetics to represent the decomposition of biomass and upgrading of bio-oil. The simulation results show that the heterogeneous reactions can perform significant effects on hydrodynamics of fluidized beds while different space time, the ratio of catalyst mass to tar flow rate, will vary the yield distribution of products.
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asp/jbeb/2012/00000001/00000002/art00015_token=005411bf4383a4b3b25702a2b4624243876353163522a726e2d58464340592f3f3b57f2b090742e79ef8
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Published date: December 2012
Keywords:
bioenergy, catalytic pyrolysis, eurlerian, fluidized beds
Organisations:
Engineering Science Unit
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Local EPrints ID: 360434
URI: http://eprints.soton.ac.uk/id/eprint/360434
ISSN: 2168-5134
PURE UUID: 4e457606-270c-43f7-9302-42f714004f2c
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Date deposited: 09 Dec 2013 15:15
Last modified: 14 Mar 2024 15:37
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Author:
Nanhang Dong
Author:
Sai Gu
Author:
Kostantinos Papadikis
Author:
Kai Luo
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