Proof-of-Concept of High-Pressure Torrefaction for Improvement of Pelletized Biomass Fuel Properties and Process Cost Reduction

dc.contributor.author Matyjewicz, Bartosz
dc.contributor.author Świechowski, Kacper
dc.contributor.author Koziel, Jacek
dc.contributor.author Białowiec, Andrzej
dc.contributor.author Koziel, Jacek
dc.contributor.department Food Science and Human Nutrition
dc.contributor.department Civil, Construction and Environmental Engineering
dc.contributor.department Agricultural and Biosystems Engineering
dc.contributor.department Environmental Science
dc.contributor.department Toxicology
dc.date 2020-09-21T17:29:33.000
dc.date.accessioned 2021-02-24T17:51:38Z
dc.date.available 2021-02-24T17:51:38Z
dc.date.copyright Wed Jan 01 00:00:00 UTC 2020
dc.date.issued 2020-09-14
dc.description.abstract <p>This paper provides a comprehensive description of the new approach to biomass torrefaction under high-pressure conditions. A new type of laboratory-scale high-pressure reactor was designed and built. The aim of the study was to compare the high-pressure torrefaction with conventional near atmospheric pressure torrefaction. Specifically, we investigated the torrefaction process influence on the fuel properties of wooden-pellet for two different pressure regimes up to 15 bar. All torrefaction processes were conducted at 300 °C, at 30 min of residence time. The initial analysis of the increased pressure impact on the torrefaction parameters: mass yields, energy densification ratio, energy yield, process energy consumption, the proximate analysis, high heating value, and energy needed to grind torrefied pellets was completed. The results show that high-pressure torrefaction needed up to six percent less energy, whereas energy densification in the pellet was ~12% higher compared to conventional torrefaction. The presence of pressure during torrefaction did not have an impact on the energy required for pellet grinding (p < 0.05).</p>
dc.description.comments <p>This article is published as Matyjewicz, Bartosz, Kacper Świechowski, Jacek A. Koziel, and Andrzej Białowiec. "Proof-of-Concept of High-Pressure Torrefaction for Improvement of Pelletized Biomass Fuel Properties and Process Cost Reduction." <em>Energies</em> 13, no. 18 (2020): 4790. DOI: <a href="https://doi.org/10.3390/en13184790" target="_blank">10.3390/en13184790</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/1161/
dc.identifier.articleid 2446
dc.identifier.contextkey 19483623
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/1161
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/92964
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/1161/2020_KozielJacek_ProofConceptHigh.pdf|||Fri Jan 14 18:54:28 UTC 2022
dc.source.uri 10.3390/en13184790
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.disciplines Energy Systems
dc.subject.keywords pressure torrefaction
dc.subject.keywords pellet
dc.subject.keywords renewable energy sources
dc.subject.keywords energy consumption
dc.subject.keywords grinding
dc.subject.keywords thermogravimetric analysis
dc.subject.keywords proximate analysis
dc.subject.keywords high heating value
dc.subject.keywords torrefied biomass
dc.subject.keywords biochar
dc.title Proof-of-Concept of High-Pressure Torrefaction for Improvement of Pelletized Biomass Fuel Properties and Process Cost Reduction
dc.type article
dc.type.genre article
dspace.entity.type Publication
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