Pimenidou, P and Dupont, V (2013) Dolomite study for in situ CO2 capture for chemical looping reforming. International Journal of Ambient Energy, 36 (4). pp. 170-182. ISSN 0143-0750
Abstract
The non-isothermal kinetic and thermal behaviour of a naturally formed dolomite in conditions that approach in situ CO2 capture in chemical looping reforming, were investigated. The performance of this dolomite was studied at micro-scale in 'dry' conditions, as well as at macro-scale in 'dry' and 'wet' conditions to investigate the effects of scale (3 mg, 2.5 g), partial pressures of CO2 (<15 kPa) and steam, and deactivation upon limited cycling. The carbonation and calcination kinetics were modelled using an improved iterative Coats-Redfern method. Increasing CO2 partial pressures on the 'dry' macro-scale exacerbated the experimental carbonation conversions in an inversely proportional trend when compared with those at micro-scale. The presence of steam had a positive effect on CO2 chemisorption. Steam had a negligible influence on the calcination activation energies. The activation energies of carbonation were increased for the experiments at the highest CO2 partial pressures under wet conditions.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | This is an Accepted Manuscript of an article published by Taylor & Francis in International Journal of Ambient Energy on October 2013, available online: http://wwww.tandfonline.com/10.1080/01430750.2013.841590 |
Keywords: | CO2capture; dolomite; kinetics; modelling; steam |
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 Research Institute (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 08 Dec 2014 09:22 |
Last Modified: | 10 Mar 2016 21:13 |
Published Version: | http://dx.doi.org/10.1080/01430750.2013.841590 |
Status: | Published |
Publisher: | Taylor & Francis |
Refereed: | Yes |
Identification Number: | 10.1080/01430750.2013.841590 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:81566 |