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Effect of pore size on the gasification of biomass char

Hesameddin, Fatehi LU and Bai, Xue-Song (2015) Clean, Efficient and Affordable Energy for a Sustainable Future: The 7th International Conference on Applied Energy (ICAE2015) In Energy Procedia 75. p.779-785
Abstract
The evolution of char porous structure can affect the gasification rate of biomass char. A model based on the classical capillary pores is developed taking into account different conversion rates for pores having different radii. The contribution of different pores with different radii is taken into account using an effectiveness factor presented for each pore radius. As the char conversion proceeds, the pore enlargement increases the contribution of micro-pores; consequently the effective surface area will increase. The increase in the effective surface area leads to an increasing reactivity of char during the entire conversion process. This model is used to examine the contribution of each group of pores in the conversion of biomass char... (More)
The evolution of char porous structure can affect the gasification rate of biomass char. A model based on the classical capillary pores is developed taking into account different conversion rates for pores having different radii. The contribution of different pores with different radii is taken into account using an effectiveness factor presented for each pore radius. As the char conversion proceeds, the pore enlargement increases the contribution of micro-pores; consequently the effective surface area will increase. The increase in the effective surface area leads to an increasing reactivity of char during the entire conversion process. This model is used to examine the contribution of each group of pores in the conversion of biomass char and can be a useful tool for developing and calibrating intrinsic kinetic rates from experimental data. (C) 2015 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Biomass, Char, Gasification, Combustion, Pore size distribution, Numerical Modeling
in
Energy Procedia
volume
75
pages
779 - 785
publisher
Elsevier
conference name
Clean, Efficient and Affordable Energy for a Sustainable Future: The 7th International Conference on Applied Energy (ICAE2015)
external identifiers
  • wos:000361030001036
  • scopus:84947078802
ISSN
1876-6102
DOI
10.1016/j.egypro.2015.07.514
language
English
LU publication?
yes
id
a3b87390-8266-473f-b1fa-282aeab791b1 (old id 8074220)
date added to LUP
2015-10-22 15:52:44
date last changed
2017-10-01 04:14:14
@inproceedings{a3b87390-8266-473f-b1fa-282aeab791b1,
  abstract     = {The evolution of char porous structure can affect the gasification rate of biomass char. A model based on the classical capillary pores is developed taking into account different conversion rates for pores having different radii. The contribution of different pores with different radii is taken into account using an effectiveness factor presented for each pore radius. As the char conversion proceeds, the pore enlargement increases the contribution of micro-pores; consequently the effective surface area will increase. The increase in the effective surface area leads to an increasing reactivity of char during the entire conversion process. This model is used to examine the contribution of each group of pores in the conversion of biomass char and can be a useful tool for developing and calibrating intrinsic kinetic rates from experimental data. (C) 2015 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license},
  author       = {Hesameddin, Fatehi and Bai, Xue-Song},
  booktitle    = {Energy Procedia},
  issn         = {1876-6102},
  keyword      = {Biomass,Char,Gasification,Combustion,Pore size distribution,Numerical Modeling},
  language     = {eng},
  pages        = {779--785},
  publisher    = {Elsevier},
  title        = {Effect of pore size on the gasification of biomass char},
  url          = {http://dx.doi.org/10.1016/j.egypro.2015.07.514},
  volume       = {75},
  year         = {2015},
}