Effect of pore size on the gasification of biomass char

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

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

Details

Authors
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Bioenergy

Keywords

  • Biomass, Char, Gasification, Combustion, Pore size distribution, Numerical Modeling
Original languageEnglish
Title of host publicationEnergy Procedia
PublisherElsevier
Pages779-785
Volume75
Publication statusPublished - 2015
Publication categoryResearch
Peer-reviewedYes
EventClean, Efficient and Affordable Energy for a Sustainable Future: The 7th International Conference on Applied Energy (ICAE2015) - Abu Dhabi, U ARAB EMIRATES
Duration: 2015 Mar 282015 Mar 31

Publication series

Name
Volume75
ISSN (Print)1876-6102

Conference

ConferenceClean, Efficient and Affordable Energy for a Sustainable Future: The 7th International Conference on Applied Energy (ICAE2015)
Period2015/03/282015/03/31