Mason, PE, Darvell, LI, Jones, JM et al. (1 more author) (2016) Observations on the release of gas-phase potassium during the combustion of single particles of biomass. Fuel, 182. pp. 110-117. ISSN 0016-2361
Abstract
One of the more significant characteristics of solid biomass fuels as compared to coal is the quantity of potassium that they contain. Potassium content influences ash deposition and corrosion mechanisms in furnaces, the effects of which may differ depending on phase transformations of potassium species in the gas phase and condensed phase. The fate of potassium from the fuel during the combustion process is therefore an important concern. To investigate this, an experimental method is presented in which the release patterns from single particles of various biomass fuels are measured by use of flame emission spectroscopy implemented using a custom-built photo-detector device. Single particles of fuel are combusted in a methane flame with a gas temperature of ∼1800 K. The observed potassium release patterns for thirteen solid biomass materials are presented. The data are analyzed to examine the relationships between: the level of potassium in the fuel particle; the fraction of potassium released at each stage of combustion and the peak rate of release of potassium to gas-phase during combustion. Correlations between these quantities are identified with key trends, patterns and differences highlighted. The analyses provide useful information for the development and validation of modelling of potassium release during combustion of biomass.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2016, Published by Elsevier. Open Access funded by Engineering and Physical Sciences Research Council. This is an open access article under a Creative Commons license http://creativecommons.org/licenses/by/4.0/ |
Keywords: | Biomass combustion; Potassium release; Flame spectroscopy |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 09 Jun 2016 09:22 |
Last Modified: | 23 Jun 2023 22:07 |
Published Version: | http://dx.doi.org/10.1016/j.fuel.2016.05.077 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.fuel.2016.05.077 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:100608 |