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  4. Emission mitigation by aluminum-silicate-based fuel additivation of wood chips with kaolin and kaolinite
 
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Emission mitigation by aluminum-silicate-based fuel additivation of wood chips with kaolin and kaolinite

Citation Link: https://doi.org/10.15480/882.5056
Publikationstyp
Journal Article
Date Issued
2023-03-28
Sprache
English
Author(s)
Gollmer, Christian  orcid-logo
Weigel, Vanessa  
Kaltschmitt, Martin  
Institut
Umwelttechnik und Energiewirtschaft V-9  
TORE-DOI
10.15480/882.5056
TORE-URI
http://hdl.handle.net/11420/15171
Journal
Energies  
Volume
16
Issue
7
Article Number
3095
Citation
Energies 16 (7): 3095 (2023)
Publisher DOI
10.3390/en16073095
Scopus ID
2-s2.0-85152765306
Publisher
Multidisciplinary Digital Publishing Institute
This study investigates the transferability of aluminum-silicate-based fuel additivation as a primary, fuel-based mitigation measure for inorganic alkali-based particulate matter (PM) emissions during the complete combustion of wood chips. Therefore, wood chips are additivated with 0.5 wt% of three different types of the aluminum-silicate-based additive kaolin, which differ mainly in their particle size distribution, and with one type of kaolinite. The subsequent combustion trials with non-additivated and additivated wood chips are carried out in a small-scale combustion plant. To evaluate the effect of the additivation of the wood chips, the total particulate matter (TPM) emissions, the potassium (K) emissions, the ultra-fine PM emissions and the carbon monoxide (CO) emissions, as well as the chemical composition of the resulting ashes, are analyzed. In order to compare the primary, fuel-side mitigation measure of fuel additivation with the established secondary mitigation measures, an electrostatic precipitator (ESP) is additionally utilized. The respective result shows that the aluminum-silicate-based fuel additivation of the wood chips with kaolin and the use of the ESP lead to comparable reductions in the TPM emissions, as well as the share of the ultra-fine particle fraction in the PM emissions. The addition of the additive kaolin additionally causes the significant mitigation of the K and CO emissions. Overall, the obtained results suggest that the combined utilization of fuel-side aluminum-silicate-based fuel additivation, together with the secondary mitigation measure of the ESP, might be very promising to further reduce PM emissions from combustion devices that operate with wood chips.
Subjects
biomass combustion
particulate matter
particle chemical composition
gaseous compounds
emission reduction
fuel improvement
DDC Class
540: Chemie
600: Technik
620: Ingenieurwissenschaften
Funding(s)
Entwicklung, Erprobung und Untersuchung eines innovativen Verfahrens zur Additivierung von Hackschnitzeln zwecks Reduzierung der Emissionen aus Holzfeuerungen  
Open-Access-Publikationskosten / 2022-2024 / Technische Universität Hamburg (TUHH)  
Funding Organisations
Deutsche Bundesstiftung Umwelt  
Publication version
publishedVersion
Lizenz
https://creativecommons.org/licenses/by/4.0/
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