An Experimental Study of the Rheological Properties and Stability Characteristics of Biochar-Algae-Water Slurry Fuels

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Abstract

The rheological properties and stability characteristics of biochar-algae-water slurry fuels were experimentally investigated. Algae Chlorella vulgaris in dry powder form was mixed with a pine sawdust biochar with algae content varying from 0 to 100wt%. Biochar-algae-water slurry fuels were then prepared by dispersing the mixtures in deionised water. Lignosulfonic acid sodium salt (LASS) was added as a dispersant at 2wt% on the basis of weight of the solid. The apparent viscosity and shear stress were measured at varied shear rate using a Haake VT550 cone and plate viscometer. The stability of the slurry fuels was characterised using a "drop rod" method. For a given solid loading, as algae content increased, the slurry fuel displayed higher viscosity and more apparent shear-thinning behaviour due to the enhanced flocculation of solid particles. The slurry stability was also improved as the algae content increased. (C) 2016 The Authors. Published by Elsevier Ltd.

Original languageEnglish
Title of host publication8th International Conference on Applied Energy (ICAE2016)
EditorsJ Yan, F Sun, SK Chou, U Desideri, H Li, P Campana, R Xiong
Place of PublicationChina
PublisherPergamon
Pages125-130
Number of pages6
Volume105
DOIs
Publication statusPublished - 2017
Event8th International Conference on Applied Energy (ICAE) - Beijing
Duration: 8 Oct 201611 Oct 2016

Publication series

NameEnergy Procedia
PublisherELSEVIER SCIENCE BV
Volume105
ISSN (Print)1876-6102

Conference

Conference8th International Conference on Applied Energy (ICAE)
CityBeijing
Period8/10/1611/10/16

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