Pyrolysis kinetics of chemically treated and torrefied radiata pine identified through thermogravimetric analysis

Simple item page
dc.contributor.authorMohd Safaai NS
dc.contributor.authorPang, Shusheng
dc.date.accessioned2021-07-07T21:09:48Z
dc.date.available2021-07-07T21:09:48Z
dc.date.issued2021en
dc.date.updated2021-05-07T02:20:25Z
dc.description.abstractThis study investigates the effects of separate and combined chemical (acid and alkaline pretreatment) and torrefaction pretreatment of radiata pine biomass on the pyrolysis kinetic parameters using thermogravimetric analysis (TGA). Thermal degradation profiles of the treated biomass samples were examined and correlated to changes in proximate and ultimate analyses. The TGA results were then used to determine the activation energies (Ea) and pre-exponential factors (A) in various kinetic models, including Kissinger, Kissinger Akahira-Sunose (KAS), Flynn-Wall-Ozawa (FWO), and simplified Distributed Activation Energy Model (DAEM) methods, where the obtained values of Ea for these models ranged between 170.9–270.9 kJ·mol–1 , 170.1–262.3 kJ·mol–1, 186.2–259.2 kJ·mol–1 and 169.3– 266.3 kJ·mol–1, respectively, for all of the treated biomass samples. The mean Ea values after pretreatments increased in comparison with that of the Control sample. In general, the Ea values increased over the degree of conversion from 0.2 to 0.8 attributed to the crystallinity and carbonisation effects upon pretreatments. However, the mean Ea values varied with the pretreatment methods, indicating a complex multi-step mechanism of pyrolysis process of the treated biomass. The A values determined for all of the treated biomass samples varied over a broad magnitude ranging from 10 5 to 1026 s –1 for the adopted kinetic models.en
dc.identifier.citationMohd Safaai NS, Pang S (2021). Pyrolysis kinetics of chemically treated and torrefied radiata pine identified through thermogravimetric analysis. Renewable Energy.en
dc.identifier.doihttp://doi.org/10.1016/j.renene.2021.04.117
dc.identifier.issn0960-1481
dc.identifier.urihttps://hdl.handle.net/10092/102189
dc.languageen
dc.language.isoen
dc.publisherElsevier BVen
dc.rightsAll rights reserved unless otherwise stateden
dc.rights.urihttp://hdl.handle.net/10092/17651en
dc.subjectacid pretreatmenten
dc.subjectalkaline pretreatmenten
dc.subjecttorrefactionen
dc.subjectkinetic modelsen
dc.subjectpyrolysisen
dc.subjectthermogravimetric analysisen
dc.subject.anzsrcFields of Research::40 - Engineering::4004 - Chemical engineering::400402 - Chemical and thermal processes in energy and combustionen
dc.titlePyrolysis kinetics of chemically treated and torrefied radiata pine identified through thermogravimetric analysisen
dc.typeJournal Articleen
uc.collegeFaculty of Engineering
uc.departmentChemical and Process Engineering
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
1-s2.0-S0960148121006376-main.pdf
Size:
2.2 MB
Format:
Adobe Portable Document Format
Description:
Accepted version
Download
Collections
Engineering: Journal Articles