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Further development and application of aerosol-based method for on-line investigation of char reactivity in steam
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för bygg- och energiteknik (BE). (Bioenergy)
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för bygg- och energiteknik (BE). (Bioenergy)
2013 (engelsk)Inngår i: Proceedings for 21st European Biomass Conference and Exhibition, ETA-Florence Renewable Energies , 2013, s. 875-878Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Wood char was prepared from wood pellets under controlled pyrolysis conditions. The gasification kinetics for wood char in 33 vol% steam was established in the temperature range from 800ºC to 1300ºC by the combination of thermogravimetric analysis (TGA) and a novel aerosol-based method. The aerosol method was further developed and demonstrated successfully for generating, transporting and gasifying the suspended char particles (0.5-10 µm) in the steam atmosphere at high temperature up to 1300ºC. A tapered element oscillating microbalance (TEOM) was used to measure the change of mass concentrations of particles in the carrier gas, before and after gasification. The activation energy was 155 kJ·mol-1 for wood char with the pre-exponential factor of 3.56×104. This method can be potentially applied to on-line measure the reactivity of char particles directly in hot gas from the gasifier.

sted, utgiver, år, opplag, sider
ETA-Florence Renewable Energies , 2013. s. 875-878
Serie
EUROPEAN BIOMASS CONFERENCE AND EXHIBITION PROCEEDINGS, ISSN 2282-5819
Emneord [en]
biomass, kinetics, steam, biochar, aerosol, particles
HSV kategori
Forskningsprogram
Teknik, Bioenergiteknik/Energi- och Miljöteknik
Identifikatorer
URN: urn:nbn:se:lnu:diva-26897DOI: 10.5071/21stEUBCE2013-2CV.3.50ISBN: 978-88-89407-53-0 (tryckt)OAI: oai:DiVA.org:lnu-26897DiVA, id: diva2:631203
Konferanse
21st European Biomass Conference and Exhibition, Copenhagen, Danmark, 3rd-7th June, 2013
Tilgjengelig fra: 2013-06-20 Laget: 2013-06-20 Sist oppdatert: 2015-05-27bibliografisk kontrollert

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