Dynamic modelling of CO2 absorption for post combustion capture in coal-fired power plants

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dc.contributor.authorLawal, Adekola-
dc.contributor.authorWang, Meihong-
dc.contributor.authorStephenson, Peter-
dc.contributor.authorYeung, Hoi-
dc.date.accessioned2011-12-02T23:01:54Z
dc.date.available2011-12-02T23:01:54Z
dc.date.issued2009-12-01T00:00:00Z-
dc.description.abstractPower generation from fossil fuel-fired power plants is the largest single source of CO2 emissions. Post combustion capture via chemical absorption is viewed as the most mature CO2 capture technique. This paper presents a study of the post combustion CO2 capture with monoethanolamine (MEA) based on dynamic modelling of the process. The aims of the project were to compare two different approaches (the equilibrium-based approach versus the rate-based approach) in modelling the absorber dynamically and to understand the dynamic behaviour of the absorber during part load operation and with disturbances from the stripper. A powerful modelling and simulation tool gPROMS was chosen to implement the proposed work. The study indicates that the rate-based model gives a better prediction of the chemical absorption process than the equilibrium-based model. The dynamic simulation of the absorber indicates normal absorber column operation could be maintained during part load operation by maintaining the ratio of the flow rates of the lean solvent and flue gas to the absorber. Disturbances in the CO2 loading of the lean solvent to the absorber significantly affect absorber performance. Further work will extend the dynamic modelling to the stripper for whole plant analysis.en_UK
dc.identifier.citationA. Lawal, M. Wang, P. Stephenson, H. Yeung, Dynamic modelling of CO2 absorption for post combustion capture in coal-fired power plants, Fuel, Volume 88, Issue 12, 7th European Conference on Coal Research and Its Applications, December 2009, Pages 2455-2462-
dc.identifier.issn0016-2361-
dc.identifier.urihttp://dx.doi.org/10.1016/j.fuel.2008.11.009-
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/3826
dc.language.isoen_UK-
dc.publisherElsevier Science B.V., Amsterdam.en_UK
dc.subjectCO2 captureen_UK
dc.subjectChemical absorptionen_UK
dc.subjectDynamic modellingen_UK
dc.subjectCoal-fired power planten_UK
dc.titleDynamic modelling of CO2 absorption for post combustion capture in coal-fired power plantsen_UK
dc.typeArticle-

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