Publication: Characteristics of hydrochar and hydrothermal liquid products from hydrothermal carbonization of corncob
Issued Date
2018-03-01
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ISSN
21906823
21906815
21906815
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2-s2.0-85042208225
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Mahidol University
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SCOPUS
Bibliographic Citation
Biomass Conversion and Biorefinery. Vol.8, No.1 (2018), 199-210
Suggested Citation
Kamonwat Nakason, Bunyarit Panyapinyopol, Vorapot Kanokkantapong, Nawin Viriya-empikul, Wasawat Kraithong, Prasert Pavasant Characteristics of hydrochar and hydrothermal liquid products from hydrothermal carbonization of corncob. Biomass Conversion and Biorefinery. Vol.8, No.1 (2018), 199-210. doi:10.1007/s13399-017-0279-1 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/45775
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Title
Characteristics of hydrochar and hydrothermal liquid products from hydrothermal carbonization of corncob
Abstract
© 2017, Springer-Verlag GmbH Germany. Corncob (CC) was converted to renewable fuel resource by hydrothermal carbonization (HTC). HTC was performed by varying process temperature (160–200 °C), residence time (1–3 h), and biomass to water ratio (BTW) (1:5 to 1:15). The properties of hydrochar were significantly enhanced where the fixed carbon and carbon content of hydrochar increased at about 24.9 and 83.7% from original contents in CC, respectively. The calorific values and yield of hydrochar were between 19.3–23.5 MJ/kg and 50.1–58.6%. The optimal condition for the production of hydrochar as solid fuel was determined at 200 °C, 3 h residence time, and BTW of 1:5 with maximum energy yield of 68.74%. In addition, hydrothermal liquid was characterized where volatile fatty acid, furfural, furfuryl alcohol, and hydroxymethylfurfural were the most abundant compositions with their highest yields of 17.3, 11.5, 7.9, and 5.1%, respectively. Process temperature was the most influencing variable on product properties and characteristics. The results suggested that corncob has high potential as a source for solid fuel and valuable platform chemicals.