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Selecting the approach for dynamic modelling of CO2 capture in biomass/waste fired CHP plants
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- Dong, Beibei (author)
- Mälardalens universitet,Framtidens energi
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- Hu, Changzheng (author)
- Tianjin Key Laboratory of Refrigeration Technology, Tianjin University of Commerce, Tianjin, 300134, China
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- Skvaril, Jan, 1982- (author)
- Mälardalens universitet,Framtidens energi
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- (creator_code:org_t)
- Elsevier Ltd, 2023
- 2023
- English.
- In: International Journal of Greenhouse Gas Control. - : Elsevier Ltd. - 1750-5836 .- 1878-0148. ; 130
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Integrating CO2 capture with biomass/waste fired combined heat and power (CHP) plants is a promising method to achieve negative emissions. However, the use of versatile biomass/waste and the dynamic operation of CHP plants result in bigger fluctuations in the properties of flue gas (FG), e.g. CO2 concentration (CO2vol%) and flowrates, and the heat that can be used for CO2 capture, when comparing with coal fired power plants. To address such a challenge, dynamic modelling is essential to accurately estimate the amount of captured CO2 and optimize the operation of CO2 capture. This paper compares three dynamic approaches commonly used in literature, namely using the ideal static model (IST) and using dynamic models without control (Dw/oC) and with control (DwC), for MEA based chemical absorption CO2 capture. The performance of approaches is assessed under the variations of key factors, including the flowrate and CO2vol% of FG, and the available heat for CO2 capture. Simulation results show clear differences. For example, when the CO2vol% drops from 15.7 % to 9.7 % (about 38 %) within 4 hours, DwC gives the highest amount of captured CO2, which is 7.3 % and 22.3 % higher than IST and Dw/oC, respectively. It is also found that the time step size has a clear impact on the CO2 capture amount, especially for DwC. Based on the results, suggestions are also provided regarding the selection of dynamic modelling approaches for different purposes of simulations.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Naturresursteknik -- Energisystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Engineering -- Energy Systems (hsv//eng)
Keyword
- Bioenergy with carbon capture and storage (BECCS)
- Biomass/waste fired combined heat and power plants
- Dynamic modelling approach
- Dynamic performance
- MEA based chemical absorption
- Biomass
- Carbon capture
- Coal fired power plant
- Cogeneration plants
- Ethanolamines
- Fossil fuel power plants
- Gas plants
- More electric aircraft
- Bioenergies with carbon capture and storages
- Bioenergy with carbon capture and storage
- Biomass wastes
- Biomass/waste fired combined heat and power plant
- Chemical absorption
- Dynamic modeling approach
- Dynamics models
- Static modelling
- Carbon dioxide
Publication and Content Type
- ref (subject category)
- art (subject category)
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