Pickard, SC, Daood, SS, Pourkashanian, M et al. (1 more author) (2014) Reactivity during bench-scale combustion of biomass fuels for carbon capture and storage applications. Fuel, 134. 171 - 179. ISSN 0016-2361
Abstract
Reactivities of four biomass samples were investigated in four combustion atmospheres using non-isothermal thermogravimetric analysis (TGA) under two heating rates. The chosen combustion atmospheres reflect carbon capture and storage (CCS) applications and include O2O2 and CO2CO2-enrichment. Application of the Coats–Redfern method assessed changes in reactivity. Reactivity varied due to heating rate: the reactivity of char oxidation was lower at higher heating rates while devolatilisation reactions were less affected. In general, and particularly at the higher heating rate, increasing [O2O2] increased combustion reactivity. A lesser effect was observed when substituting N2N2 for CO2CO2 as the comburent; in unenriched conditions this tended to reduce char oxidation reactivity while in O2O2-enriched conditions the reactivity marginally increased. Combustion in a typical, dry oxyfuel environment (30% O2O2, 70% CO2CO2) was more reactive than in air in TGA experiments. These biomass results should interest researchers seeking to understand phenomena occurring in larger scale CCS-relevant experiments.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2014, Elsevier. NOTICE: this is the author’s version of a work that was accepted for publication in Fuel. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Fuel, 134, 2014, 10.1016/j.fuel.2014.05.050 |
Keywords: | Biomass combustion; Oxyfuel; Oxygen-enrichment; Bio-CCS; TGA |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) > Energy Tech & Innovation Initiative (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 30 Jul 2014 10:32 |
Last Modified: | 23 Jan 2018 06:05 |
Published Version: | http://dx.doi.org/10.1016/j.fuel.2014.05.050 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.fuel.2014.05.050 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:79891 |