期刊
JOURNAL OF THE ENERGY INSTITUTE
卷 91, 期 2, 页码 184-193出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.joei.2017.01.002
关键词
Waste utilization; Chemical platform; Agricultural waste; Lignicellulosic material; Biomass
资金
- Mahidol University [218776]
- Nanomaterial for Energy and Catalyst Laboratory, National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA)
- China Medical Board (CMB), Faculty of Public Health, Mahidol University, Bangkok, Thailand
- Center of Excellent on Environmental health and Toxicology (EHT), Bangkok, Thailand
Hydrothermal carbonization (HTC) of cassava rhizome (CR) was performed to investigate the effect of process parameters including temperature, time, and biomass to water ratio (BTW) on characteristics of hydrochar and liquid fraction products. The effect of temperature was two-fold. First, an increase in reaction temperature from 160 to 180 degrees C decreased hydrochar yield from 54 to 51%, however, a further increase of temperature from 180 to 200 degrees C saw an increase in the hydrochar yield to 58%. This was associated to degradation, polymerization, and condensation reactions during HTC. The hydrogen/carbon and oxygen/carbon atomic ratios decreased from 1.4 and 0.6 at 160 degrees C to 1.2 and 0.4 at 200 degrees C, respectively. The liquid fraction contained various valuable chemical species including, glucose, furan compounds, (furfural, furfuryl alcohol, hydroxymethylfurfural), volatile fatty acid (succinic acid, lactic acid, formic acid, acetic acid, levulinic acid, and propionic acid) with their highest yields (wt.% dry raw material) of 4.5, 18.5, and 24.3, respectively. (C) 2017 Energy Institute. Published by Elsevier Ltd. All rights reserved.
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