Biomass pyrolysis and combustion integral and differential reaction heats with temperatures using thermogravimetric analysis/differential scanning calorimetry

Article

Shen, Jiacheng, Igathinathane, C., Yu, Manlu and Pothula, Anand Kumar. 2015. "Biomass pyrolysis and combustion integral and differential reaction heats with temperatures using thermogravimetric analysis/differential scanning calorimetry." Bioresource Technology. 185, pp. 89-98. https://doi.org/10.1016/j.biortech.2015.02.079
Article Title

Biomass pyrolysis and combustion integral and differential reaction heats with temperatures using thermogravimetric analysis/differential scanning calorimetry

ERA Journal ID3454
Article CategoryArticle
AuthorsShen, Jiacheng (Author), Igathinathane, C. (Author), Yu, Manlu (Author) and Pothula, Anand Kumar (Author)
Journal TitleBioresource Technology
Journal Citation185, pp. 89-98
Number of Pages10
Year2015
PublisherElsevier
Place of PublicationUnited Kingdom
ISSN0960-8524
1873-2976
Digital Object Identifier (DOI)https://doi.org/10.1016/j.biortech.2015.02.079
Web Address (URL)https://www.sciencedirect.com/science/article/pii/S0960852415002588
Abstract

Integral reaction heats of switchgrass, big bluestem, and corn stalks were determined using thermogravimetric analysis/differential scanning calorimetry (TGA/DSC). Iso-conversion differential reaction heats using TGA/DSC pyrolysis and combustion of biomass were not available, despite reports available on heats required and released. A concept of iso-conversion differential reaction heats was used to determine the differential reaction heats of each thermal characteristics segment of these materials. Results showed that the integral reaction heats were endothermic from 30 to 700. °C for pyrolysis of switchgrass and big bluestem, but they were exothermic for corn stalks prior to 587. °C. However, the integral reaction heats for combustion of the materials followed an endothermic to exothermic transition. The differential reaction heats of switchgrass pyrolysis were predominantly endothermic in the fraction of mass loss (0.0536-0.975), and were exothermic for corn stalks (0.0885-0.850) and big bluestem (0.736-0.919). Study results provided better insight into biomass thermal mechanism.

Keywordsbig bluestem, corn stover, lignocellulosic biomass, switchgrass thermal properties
ANZSRC Field of Research 2020409901. Agricultural engineering
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Byline AffiliationsNorth Dakota State University, United States
Institution of OriginUniversity of Southern Queensland
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