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Type: Journal article
Title: Hydrothermal carbonisation of Australian saltbush
Author: Keiller, B.
van Eyk, P.J.
Lane, D.
Muhlack, R.
Burton, R.
Citation: Energy and Fuels, 2019; 33(2):1157-1166
Publisher: American Chemical Society
Issue Date: 2019
ISSN: 0887-0624
Statement of
Benjamin G. Keiller, Philip J. van Eyk, Daniel J. Lane, Richard Muhlack, and Rachel A. Burton
Abstract: Hydrothermal carbonization (HTC) is a thermochemical process, wherein biomass is subjected to high-pressure, high-temperature subcritical water to improve the combustion characteristics of biomass as a solid fuel. Australian saltbush was subjected to HTC at three temperatures (200, 230, and 260 °C) and four holding times (0, 15, 30, and 60 min) using a custom-built batch reactor. The resultant hydrochars demonstrated improved higher heating values (HHVs), with temperature more influential than time. At the most severe condition of 60 min and 260 °C, the hydrochar possessed numerous key similarities to fossil coal, such as a HHV of 27.5 MJ/kg, similar ratios of carbon/oxygen and hydrogen/oxygen, and equivalent levels of volatile matter, fixed carbon, and ash. The HTC process also proved effective in reducing the high levels of inorganic elements naturally present within saltbush, with 60 min at 260 °C again shown to be the most effective condition, removing almost 95% of sodium, chloride, and potassium.
Rights: © 2018 American Chemical Society
DOI: 10.1021/acs.energyfuels.8b03416
Grant ID: ARC
Appears in Collections:Agriculture, Food and Wine publications
Aurora harvest 4

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