Comparing four bio-reducers self-ignition propensity by applying heat-based methods derived from coal
Charcoal seems one of the most promising bio-reducer because of its high coke replacement ratio in blast furnaces. Nevertheless, biochar materials are subject self-combustion during storage, handling and transport, and need to be studied in order to understand and limit these phenomena. Heat-based methods: were employed to compare and determine the self-ignition parameters of four types of fresh biochar (Quercus pubescens, Cyclobalanopsis glauca, and Trigonostemon huangmosun, Bambusa vulgar) that are used as bio-reducers in the silica industry. This study assumed that spontaneous combustion arises from exothermic oxygen chemisorption to fresh biochar surface. Sample mass, heat flow and CO2 desorption were measured. The weight increased very rapidly as soon as the gas stream was changed from N2 to air accompanying the heat generation for each material. Desorption isotherms were found to depend on the nature of the feedstock confirming that bamboo biochar was the most reactive one under air exposure.
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Subjects: | P06 - Sources d'énergie renouvelable, K50 - Technologie des produits forestiers, charbon de bois, combustion, oxygène, réduction, température, carbonisation du bois, gazéification, Quercus pubescens, Bambusa vulgaris, http://aims.fao.org/aos/agrovoc/c_1503, http://aims.fao.org/aos/agrovoc/c_1777, http://aims.fao.org/aos/agrovoc/c_5477, http://aims.fao.org/aos/agrovoc/c_6483, http://aims.fao.org/aos/agrovoc/c_7657, http://aims.fao.org/aos/agrovoc/c_28044, http://aims.fao.org/aos/agrovoc/c_34000, http://aims.fao.org/aos/agrovoc/c_24694, http://aims.fao.org/aos/agrovoc/c_805, |
Online Access: | http://agritrop.cirad.fr/584689/ http://agritrop.cirad.fr/584689/1/TA%20bio%20reducers%202017.pdf |
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dig-cirad-fr-5846892024-01-29T00:23:04Z http://agritrop.cirad.fr/584689/ http://agritrop.cirad.fr/584689/ Comparing four bio-reducers self-ignition propensity by applying heat-based methods derived from coal. Rousset Patrick, Mondher Bilel, Candelier Kévin, Volle Ghislaine, Dibdiakova Janka, Humbert Gilles. 2017. Thermochimica Acta, 655 : 13-20.https://doi.org/10.1016/j.tca.2017.06.006 <https://doi.org/10.1016/j.tca.2017.06.006> Comparing four bio-reducers self-ignition propensity by applying heat-based methods derived from coal Rousset, Patrick Mondher, Bilel Candelier, Kévin Volle, Ghislaine Dibdiakova, Janka Humbert, Gilles eng 2017 Thermochimica Acta P06 - Sources d'énergie renouvelable K50 - Technologie des produits forestiers charbon de bois combustion oxygène réduction température carbonisation du bois gazéification Quercus pubescens Bambusa vulgaris http://aims.fao.org/aos/agrovoc/c_1503 http://aims.fao.org/aos/agrovoc/c_1777 http://aims.fao.org/aos/agrovoc/c_5477 http://aims.fao.org/aos/agrovoc/c_6483 http://aims.fao.org/aos/agrovoc/c_7657 http://aims.fao.org/aos/agrovoc/c_28044 http://aims.fao.org/aos/agrovoc/c_34000 http://aims.fao.org/aos/agrovoc/c_24694 http://aims.fao.org/aos/agrovoc/c_805 Charcoal seems one of the most promising bio-reducer because of its high coke replacement ratio in blast furnaces. Nevertheless, biochar materials are subject self-combustion during storage, handling and transport, and need to be studied in order to understand and limit these phenomena. Heat-based methods: were employed to compare and determine the self-ignition parameters of four types of fresh biochar (Quercus pubescens, Cyclobalanopsis glauca, and Trigonostemon huangmosun, Bambusa vulgar) that are used as bio-reducers in the silica industry. This study assumed that spontaneous combustion arises from exothermic oxygen chemisorption to fresh biochar surface. Sample mass, heat flow and CO2 desorption were measured. The weight increased very rapidly as soon as the gas stream was changed from N2 to air accompanying the heat generation for each material. Desorption isotherms were found to depend on the nature of the feedstock confirming that bamboo biochar was the most reactive one under air exposure. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/584689/1/TA%20bio%20reducers%202017.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.tca.2017.06.006 10.1016/j.tca.2017.06.006 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.tca.2017.06.006 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.tca.2017.06.006 |
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P06 - Sources d'énergie renouvelable K50 - Technologie des produits forestiers charbon de bois combustion oxygène réduction température carbonisation du bois gazéification Quercus pubescens Bambusa vulgaris http://aims.fao.org/aos/agrovoc/c_1503 http://aims.fao.org/aos/agrovoc/c_1777 http://aims.fao.org/aos/agrovoc/c_5477 http://aims.fao.org/aos/agrovoc/c_6483 http://aims.fao.org/aos/agrovoc/c_7657 http://aims.fao.org/aos/agrovoc/c_28044 http://aims.fao.org/aos/agrovoc/c_34000 http://aims.fao.org/aos/agrovoc/c_24694 http://aims.fao.org/aos/agrovoc/c_805 P06 - Sources d'énergie renouvelable K50 - Technologie des produits forestiers charbon de bois combustion oxygène réduction température carbonisation du bois gazéification Quercus pubescens Bambusa vulgaris http://aims.fao.org/aos/agrovoc/c_1503 http://aims.fao.org/aos/agrovoc/c_1777 http://aims.fao.org/aos/agrovoc/c_5477 http://aims.fao.org/aos/agrovoc/c_6483 http://aims.fao.org/aos/agrovoc/c_7657 http://aims.fao.org/aos/agrovoc/c_28044 http://aims.fao.org/aos/agrovoc/c_34000 http://aims.fao.org/aos/agrovoc/c_24694 http://aims.fao.org/aos/agrovoc/c_805 |
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P06 - Sources d'énergie renouvelable K50 - Technologie des produits forestiers charbon de bois combustion oxygène réduction température carbonisation du bois gazéification Quercus pubescens Bambusa vulgaris http://aims.fao.org/aos/agrovoc/c_1503 http://aims.fao.org/aos/agrovoc/c_1777 http://aims.fao.org/aos/agrovoc/c_5477 http://aims.fao.org/aos/agrovoc/c_6483 http://aims.fao.org/aos/agrovoc/c_7657 http://aims.fao.org/aos/agrovoc/c_28044 http://aims.fao.org/aos/agrovoc/c_34000 http://aims.fao.org/aos/agrovoc/c_24694 http://aims.fao.org/aos/agrovoc/c_805 P06 - Sources d'énergie renouvelable K50 - Technologie des produits forestiers charbon de bois combustion oxygène réduction température carbonisation du bois gazéification Quercus pubescens Bambusa vulgaris http://aims.fao.org/aos/agrovoc/c_1503 http://aims.fao.org/aos/agrovoc/c_1777 http://aims.fao.org/aos/agrovoc/c_5477 http://aims.fao.org/aos/agrovoc/c_6483 http://aims.fao.org/aos/agrovoc/c_7657 http://aims.fao.org/aos/agrovoc/c_28044 http://aims.fao.org/aos/agrovoc/c_34000 http://aims.fao.org/aos/agrovoc/c_24694 http://aims.fao.org/aos/agrovoc/c_805 Rousset, Patrick Mondher, Bilel Candelier, Kévin Volle, Ghislaine Dibdiakova, Janka Humbert, Gilles Comparing four bio-reducers self-ignition propensity by applying heat-based methods derived from coal |
description |
Charcoal seems one of the most promising bio-reducer because of its high coke replacement ratio in blast furnaces. Nevertheless, biochar materials are subject self-combustion during storage, handling and transport, and need to be studied in order to understand and limit these phenomena. Heat-based methods: were employed to compare and determine the self-ignition parameters of four types of fresh biochar (Quercus pubescens, Cyclobalanopsis glauca, and Trigonostemon huangmosun, Bambusa vulgar) that are used as bio-reducers in the silica industry. This study assumed that spontaneous combustion arises from exothermic oxygen chemisorption to fresh biochar surface. Sample mass, heat flow and CO2 desorption were measured. The weight increased very rapidly as soon as the gas stream was changed from N2 to air accompanying the heat generation for each material. Desorption isotherms were found to depend on the nature of the feedstock confirming that bamboo biochar was the most reactive one under air exposure. |
format |
article |
topic_facet |
P06 - Sources d'énergie renouvelable K50 - Technologie des produits forestiers charbon de bois combustion oxygène réduction température carbonisation du bois gazéification Quercus pubescens Bambusa vulgaris http://aims.fao.org/aos/agrovoc/c_1503 http://aims.fao.org/aos/agrovoc/c_1777 http://aims.fao.org/aos/agrovoc/c_5477 http://aims.fao.org/aos/agrovoc/c_6483 http://aims.fao.org/aos/agrovoc/c_7657 http://aims.fao.org/aos/agrovoc/c_28044 http://aims.fao.org/aos/agrovoc/c_34000 http://aims.fao.org/aos/agrovoc/c_24694 http://aims.fao.org/aos/agrovoc/c_805 |
author |
Rousset, Patrick Mondher, Bilel Candelier, Kévin Volle, Ghislaine Dibdiakova, Janka Humbert, Gilles |
author_facet |
Rousset, Patrick Mondher, Bilel Candelier, Kévin Volle, Ghislaine Dibdiakova, Janka Humbert, Gilles |
author_sort |
Rousset, Patrick |
title |
Comparing four bio-reducers self-ignition propensity by applying heat-based methods derived from coal |
title_short |
Comparing four bio-reducers self-ignition propensity by applying heat-based methods derived from coal |
title_full |
Comparing four bio-reducers self-ignition propensity by applying heat-based methods derived from coal |
title_fullStr |
Comparing four bio-reducers self-ignition propensity by applying heat-based methods derived from coal |
title_full_unstemmed |
Comparing four bio-reducers self-ignition propensity by applying heat-based methods derived from coal |
title_sort |
comparing four bio-reducers self-ignition propensity by applying heat-based methods derived from coal |
url |
http://agritrop.cirad.fr/584689/ http://agritrop.cirad.fr/584689/1/TA%20bio%20reducers%202017.pdf |
work_keys_str_mv |
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