期刊
RENEWABLE ENERGY
卷 156, 期 -, 页码 942-950出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2020.04.124
关键词
Hydrothermal carbonization; HTC; Virginia mallow; Sida hermaphrodita; TGA; FTIR
资金
- Ministry of Science and Higher Education, Poland [11.11.110.663]
In this study, the effects of temperature, residence time and biomass to water ratio on hydrothermal carbonization of Virginia mallow were conducted. The main goal of this research was to investigate hydrochars derived from Virginia mallow in order to assess their fuel properties. Proximate, ultimate and high heating value analyses were used to establish the chemical energy content of raw biomass and hydrochars. TGA, SEM, BET and FTIR were performed to discuss the combustion characteristics and changes in the surface of the material. Temperature was found to be the main factor influencing the conversion of Virginia mallow during the HTC process. It was confirmed by the properties of hydrochar derived at 220 degrees C for 5 min which was as carbonaceous (51.8% carbon content) and reactive as that obtained at 200 degrees C for 60 min (52.5% carbon content). A sample pretreated at 200 degrees C for 90 min had the highest fixed carbon value (16.29%) when compared to raw feedstock (5.63%). In the resulting reduction of mass found in the hydrochar, an increase in the energy densification ratio as well as better combustion stability were also observed. Detailed analysis of the Results confirmed that the HTC is a promising method for producing energy-dense solid biofuel. (C) 2020 The Authors. Published by Elsevier Ltd.
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