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Diskrete-Elemente-Modellierung der pyrolytischen Zersetzung und Fragmentierung von Holzpellets im Chemical-Looping Vergasungsprozess
Citation Link: https://doi.org/10.15480/882.9142
Publikationstyp
Doctoral Thesis
Date Issued
2024
Sprache
German
Author(s)
Jarolin, Kolja
Advisor
Referee
Title Granting Institution
Technischee Universität Hamburg
Place of Title Granting Institution
Hamburg
Examination Date
2024-01-22
TORE-DOI
Citation
Technische Universität Hamburg (2024)
To enable a more accurate prediction of breakage and attrition for the chemical looping gasification of biomass, a numerical model for the behavior of devolatilized wood pellets was developed. Experimental investigations revealed the generation of a macro-porous structure during devolatilized. Under mechanical loads, this results in complex failure behavior. Based on these findings the bonded-particle model has been extended to predict the thermochemical conversion and the induced structural changes. Subsequent mechanical simulations show good agreement with the experiments and demonstrate the possibility of modeling the breakage of the pellets in a gasification reactor.
Subjects
biomass gasification
discrete element method
mechanical characterisation
bonded-particle model
DDC Class
660: Chemistry; Chemical Engineering
Funding Organisations
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Name
Jarolin_Kolja_Modellierung-der-pyrolytischen-Zersetzung-und-Fragmentierung-von-Pellets.pdf
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28.16 MB
Format
Adobe PDF