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Fuel properties and ageing of bioslurry prepared from glycerol/methanol/bio-oil blend and biochar

TitleFuel properties and ageing of bioslurry prepared from glycerol/methanol/bio-oil blend and biochar
Publication TypeJournal Article
Year of Publication2016
AuthorsGao, Wenran, Zhang Mingming, and Wu Hongwei
JournalFuel
Volume176
Pagination72 - 77
Date Published07/2016
ISSN00162361
Abstract

This study investigates the fuel properties and ageing of a series of bioslurry fuels prepared from glycerol/methanol/bio-oil (GMB) blend and biochar at different biochar loading levels (up to 16.7 wt%). The GMB/biochar (GMBB) bioslurry fuels generally exhibit non-Newtonian and thixotropic behaviour, especially those at high biochar to GMB blend ratios (2:20–4:20). An increase in biochar loading level also increases the HHV, density and surface tension of the GMBB bioslurry fuels. Compared to the bio-oil/biochar (BB) bioslurry fuels at the same biochar loading level, the GMBB bioslurry fuels have much lower viscosity, water content and total acids number (TAN). Both the GMBB and BB bioslurry fuels have increasing viscosity, decreasing water content and TAN with increasing biochar to liquid ratio. Ageing leads to decreases in the TAN and viscosity but an increase in water content of the GMBB slurry fuels. The leaching of AAEM species from biochar in the GMBB bioslurry fuels increases with ageing. The presence of methanol and glycerol in the GMBB slurry fuels slow down the ageing and also leads to less leaching of AAEM species from biochar after accelerated ageing.

URLhttp://www.sciencedirect.com/science/article/pii/S0016236116001848
DOI10.1016/j.fuel.2016.02.056
Short TitleFuel