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Characterisation of submicron particles produced during oxygen blown entrained flow gasification of biomass
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energy Technology Center.ORCID iD: 0000-0002-9395-9928
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energy Technology Center.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energy Technology Center.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energy Technology Center.
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2014 (English)In: Combustion and Flame, ISSN 0010-2180, E-ISSN 1556-2921, Vol. 161, no 7, p. 1923-1934Article in journal (Refereed) Published
Abstract [en]

In this paper submicron particles sampled after the quench during 200kW, 2bar(a) pressurised, oxygen blown gasification of three biomass fuels, pure stem wood of pine and spruce, bark from spruce and a bark mixture, have been characterised with respect to particle size distribution with a low pressure cascade impactor. The particles were also characterised for morphology and elemental composition by a combination of scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS) and high resolution transmission electron microscopy/energy dispersive spectroscopy/selected area electron diffraction pattern (HRTEM/EDS/SAED) techniques. The resulting particle concentration in the syngas after the quench varied between 46 and 289mg/Nm3 consisting of both carbon and easily volatile ash forming element significantly depending on the fuel ash content. Several different types of particles could be identified from classic soot particles to pure metallic zinc particles depending on the individual particle relation of carbon and ash forming elements. The results also indicate that ash forming elements and especially zinc interacts in the soot formation process creating a particle with shape and microstructure significantly different from a classical soot particle. © 2014 The Combustion Institute.

Place, publisher, year, edition, pages
2014. Vol. 161, no 7, p. 1923-1934
Keywords [en]
Biomass, Gasification, HRTEM, SAED, Soot, Zinc
Keywords [sv]
Energiteknik
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:ri:diva-6940DOI: 10.1016/j.combustflame.2014.01.004Scopus ID: 2-s2.0-84901625416OAI: oai:DiVA.org:ri-6940DiVA, id: diva2:964795
Available from: 2016-09-08 Created: 2016-09-08 Last updated: 2018-07-05Bibliographically approved

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Wiinikka, Henrik

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