Impact of torrefaction on syngas production from wood
Torrefaction is a way to treat biomass before transportation or thermochemical conversion. It can be used to increase the energy content of wood or to facilitate grinding. The purpose of this paper was to quantify the impact of such a treatment on the behaviour of wood during gasification by steam at high temperature to produce syngas. The aspects of both gas yields and reaction kinetics were considered. Beechwood was submitted both to light torrefaction and severe torrefaction, using a specially designed crossed fixed bed reactor. The initial wood and the torrefied woods were first characterised, then gasified in a new laboratory high-temperature entrained flow reactor (HT-EFR) at 1400 _C for 2 s in an atmosphere containing 20 vol% steam in N2. The syngas produced was then analysed. The experiments were modelled using a thermo-dynamical equilibrium approach. It was confirmed that torrefaction decreased the O/C ratio. The quantity of syngas produced increased with the severity of the torrefaction. The equilibrium approach describes the results satisfactorily. Gasification experiments carried out at a lower temperature - 1200 _C - indicated that the chars from torrefied woods are less reactive towards steam than the char from wood.
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Format: | article biblioteca |
Language: | eng |
Subjects: | K50 - Technologie des produits forestiers, P06 - Sources d'énergie renouvelable, bois, traitement thermique, bioénergie, biomasse, gazéification, torréfaction, http://aims.fao.org/aos/agrovoc/c_8421, http://aims.fao.org/aos/agrovoc/c_24947, http://aims.fao.org/aos/agrovoc/c_16526, http://aims.fao.org/aos/agrovoc/c_926, http://aims.fao.org/aos/agrovoc/c_34000, http://aims.fao.org/aos/agrovoc/c_28596, |
Online Access: | http://agritrop.cirad.fr/550079/ http://agritrop.cirad.fr/550079/1/document_550079.pdf |
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dig-cirad-fr-5500792024-01-28T17:18:40Z http://agritrop.cirad.fr/550079/ http://agritrop.cirad.fr/550079/ Impact of torrefaction on syngas production from wood. Couhert Carole, Salvador Sylvain, Commandre Jean-Michel. 2009. Fuel, 88 (11) : 2286-2290.https://doi.org/10.1016/j.fuel.2009.05.003 <https://doi.org/10.1016/j.fuel.2009.05.003> Impact of torrefaction on syngas production from wood Couhert, Carole Salvador, Sylvain Commandre, Jean-Michel eng 2009 Fuel K50 - Technologie des produits forestiers P06 - Sources d'énergie renouvelable bois traitement thermique bioénergie biomasse gazéification torréfaction http://aims.fao.org/aos/agrovoc/c_8421 http://aims.fao.org/aos/agrovoc/c_24947 http://aims.fao.org/aos/agrovoc/c_16526 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_34000 http://aims.fao.org/aos/agrovoc/c_28596 Torrefaction is a way to treat biomass before transportation or thermochemical conversion. It can be used to increase the energy content of wood or to facilitate grinding. The purpose of this paper was to quantify the impact of such a treatment on the behaviour of wood during gasification by steam at high temperature to produce syngas. The aspects of both gas yields and reaction kinetics were considered. Beechwood was submitted both to light torrefaction and severe torrefaction, using a specially designed crossed fixed bed reactor. The initial wood and the torrefied woods were first characterised, then gasified in a new laboratory high-temperature entrained flow reactor (HT-EFR) at 1400 _C for 2 s in an atmosphere containing 20 vol% steam in N2. The syngas produced was then analysed. The experiments were modelled using a thermo-dynamical equilibrium approach. It was confirmed that torrefaction decreased the O/C ratio. The quantity of syngas produced increased with the severity of the torrefaction. The equilibrium approach describes the results satisfactorily. Gasification experiments carried out at a lower temperature - 1200 _C - indicated that the chars from torrefied woods are less reactive towards steam than the char from wood. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/550079/1/document_550079.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.fuel.2009.05.003 10.1016/j.fuel.2009.05.003 http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=204589 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.fuel.2009.05.003 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.fuel.2009.05.003 |
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K50 - Technologie des produits forestiers P06 - Sources d'énergie renouvelable bois traitement thermique bioénergie biomasse gazéification torréfaction http://aims.fao.org/aos/agrovoc/c_8421 http://aims.fao.org/aos/agrovoc/c_24947 http://aims.fao.org/aos/agrovoc/c_16526 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_34000 http://aims.fao.org/aos/agrovoc/c_28596 K50 - Technologie des produits forestiers P06 - Sources d'énergie renouvelable bois traitement thermique bioénergie biomasse gazéification torréfaction http://aims.fao.org/aos/agrovoc/c_8421 http://aims.fao.org/aos/agrovoc/c_24947 http://aims.fao.org/aos/agrovoc/c_16526 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_34000 http://aims.fao.org/aos/agrovoc/c_28596 |
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K50 - Technologie des produits forestiers P06 - Sources d'énergie renouvelable bois traitement thermique bioénergie biomasse gazéification torréfaction http://aims.fao.org/aos/agrovoc/c_8421 http://aims.fao.org/aos/agrovoc/c_24947 http://aims.fao.org/aos/agrovoc/c_16526 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_34000 http://aims.fao.org/aos/agrovoc/c_28596 K50 - Technologie des produits forestiers P06 - Sources d'énergie renouvelable bois traitement thermique bioénergie biomasse gazéification torréfaction http://aims.fao.org/aos/agrovoc/c_8421 http://aims.fao.org/aos/agrovoc/c_24947 http://aims.fao.org/aos/agrovoc/c_16526 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_34000 http://aims.fao.org/aos/agrovoc/c_28596 Couhert, Carole Salvador, Sylvain Commandre, Jean-Michel Impact of torrefaction on syngas production from wood |
description |
Torrefaction is a way to treat biomass before transportation or thermochemical conversion. It can be used to increase the energy content of wood or to facilitate grinding. The purpose of this paper was to quantify the impact of such a treatment on the behaviour of wood during gasification by steam at high temperature to produce syngas. The aspects of both gas yields and reaction kinetics were considered. Beechwood was submitted both to light torrefaction and severe torrefaction, using a specially designed crossed fixed bed reactor. The initial wood and the torrefied woods were first characterised, then gasified in a new laboratory high-temperature entrained flow reactor (HT-EFR) at 1400 _C for 2 s in an atmosphere containing 20 vol% steam in N2. The syngas produced was then analysed. The experiments were modelled using a thermo-dynamical equilibrium approach. It was confirmed that torrefaction decreased the O/C ratio. The quantity of syngas produced increased with the severity of the torrefaction. The equilibrium approach describes the results satisfactorily. Gasification experiments carried out at a lower temperature - 1200 _C - indicated that the chars from torrefied woods are less reactive towards steam than the char from wood. |
format |
article |
topic_facet |
K50 - Technologie des produits forestiers P06 - Sources d'énergie renouvelable bois traitement thermique bioénergie biomasse gazéification torréfaction http://aims.fao.org/aos/agrovoc/c_8421 http://aims.fao.org/aos/agrovoc/c_24947 http://aims.fao.org/aos/agrovoc/c_16526 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_34000 http://aims.fao.org/aos/agrovoc/c_28596 |
author |
Couhert, Carole Salvador, Sylvain Commandre, Jean-Michel |
author_facet |
Couhert, Carole Salvador, Sylvain Commandre, Jean-Michel |
author_sort |
Couhert, Carole |
title |
Impact of torrefaction on syngas production from wood |
title_short |
Impact of torrefaction on syngas production from wood |
title_full |
Impact of torrefaction on syngas production from wood |
title_fullStr |
Impact of torrefaction on syngas production from wood |
title_full_unstemmed |
Impact of torrefaction on syngas production from wood |
title_sort |
impact of torrefaction on syngas production from wood |
url |
http://agritrop.cirad.fr/550079/ http://agritrop.cirad.fr/550079/1/document_550079.pdf |
work_keys_str_mv |
AT couhertcarole impactoftorrefactiononsyngasproductionfromwood AT salvadorsylvain impactoftorrefactiononsyngasproductionfromwood AT commandrejeanmichel impactoftorrefactiononsyngasproductionfromwood |
_version_ |
1792497273813336064 |