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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/42508
Title: Hydrothermal carbonization of oil palm pressed fiber: Effect of reaction parameters on product characteristics
Authors: Kamonwat Nakason
Bunyarit Panyapinyopol
Vorapot Kanokkantapong
Nawin Viriya-Empikul
Wasawat Kraithong
Prasert Pavasant
Mahidol University
Center of Excellence on Environmental Health and Toxicology (EHT)
Chulalongkorn University
King Mongkut s University of Technology Thonburi
Thailand National Science and Technology Development Agency
Vidyasirimedhi Institute of Science and Technology
Keywords: Energy
Issue Date: 1-Jun-2017
Citation: International Energy Journal. Vol.17, No.2 (2017), 47-56
Abstract: This work focused on the hydrothermal carbonization (HTC) of oil palm pressed fiber for the production of valuable products, over the reaction temperature (140 to 200 °C), time (1 to 4 h), and biomass to water content (BTW) (1:5 to 1:15). Reaction temperature was a vital key parameter on fuel properties of hydrochar. The combustibility of hydrochar reflected by fuel ratio increased from 0.42 at 140 °C to 0.54 at 200 °C. O/C and H/C atomic ratio decreased from 0.56 and 1.54 to 0.37 and 1.28, respectively, which corresponded to an increase in the estimated HHV from 21.0 to 24.6 MJ/kg. Hydrochar yield decreased from 78.4 to 61.7%. These phenomena were associated with hydrolysis, dehydration, decarboxylation, aromatization, and recondensation reactions. The reaction time and BTW affected slightly the yield and fuel properties of hydrochar. The valuable dissolved organic chemical species in the obtained liquid fraction were furfuryl alcohol, furfural, hydroxymethylfurfural, acetic acid, propionic acid, lactic acid, and formic acid with the maximum yields of 6.95, 2.05, 0.64, 6.91, 4.75, 4.11 and 2.64 wt.% dry raw material, respectively.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85026308473&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/42508
ISSN: 1513718X
Appears in Collections:Scopus 2016-2017

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