Dataset - Self-Heating of Biochar during Postproduction Storage by O₂ Chemisorption at Low Temperatures
SND-ID: 2024-348. Version: 1. DOI: https://doi.org/10.5878/40dp-hx03
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Citering
Skapare/primärforskare
Kentaro Umeki - Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik
Forskningshuvudman
Luleå tekniska universitet - Institutionen för teknikvetenskap och matematik
Beskrivning
Biochar is attracting attention as an alternative carbon/fuel source to coal in the process industry and energy sector. However, it is prone to self-heating and often leads to spontaneous ignition and thermal runaway during storage, resulting in production loss and health risks. This study investigates biochar self-heating upon its contact with O₂ at low temperatures, i.e., 50–300 °C. First, kinetic parameters of O₂ adsorption and CO₂ release were measured in a thermogravimetric analyzer using biochar produced from a pilot-scale pyrolysis process. Then, specific heat capacity and heat of reactions were measured in a differential scanning calorimeter. Finally, a one-dimensional transient model was developed to simulate self-heating in containers and gain insight into the influences of major parameters. The model showed a good agreement with experimental measurement in a closed metal container. It was observed that char temperature slowly increased from the initial temperature due to heat released during O₂ adsorption. Thermal runaway, i.e., self-ignition, was observed in some cases even at the
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Data innefattar personuppgifter
Nej
Språk
Dataformat / datastruktur
Ansvarig institution/enhet
Institutionen för teknikvetenskap och matematik
Medverkande
Identifierare
Forskningsområde
Energiteknik (Standard för svensk indelning av forskningsämnen 2011)
Phounglamcheik, A., Johnson, N., Kienzl, N., Strasser, C., & Umeki, K. (2022). Self-Heating of Biochar during Postproduction Storage by O2 Chemisorption at Low Temperatures. In Energies (No. 380; Vol. 15, Issue 1). https://doi.org/10.3390/en15010380
URN:
urn:nbn:se:ltu:diva-88691
DOI:
https://doi.org/10.3390/en15010380
SwePub:
oai:DiVA.org:ltu-88691
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