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Energy Savings in CO2 Capture System through Intercooling Mechanism

Rehan, M.
; ; 
Hyatt, Xaviar
; 
Peletiri, Suoton P.
; 
Nizami, A.-S.
Publication Date
2017-01
End of Embargo
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Keywords
Aspen, HYSYS, Climate change, CO2 capture, Energy savings, Greenhouse Gases, GHG, Intercooling
Rights
(c) 2017 The Authors. This is an Open Access article distributed under the Creative Commons CC-BY-NC license (https://creativecommons.org/licenses/by-nc-nd/4.0/)
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Yes
Open Access status
openAccess
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Engineering and Digital Technology Publications
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Abstract
It has been globally recognized as necessary to reduce greenhouse gas (GHG) emissions for mitigating the adverse effects of global warming on earth. Carbon dioxide (CO2) capture and storage (CCS) technologies can play a critical role to achieve these reductions. Current CCS technologies use several different approaches including adsorption, membrane separation, physical and chemical absorption to separate CO2from flue gases. This study aims to evaluate the performance and energy savings of CO2capture system based on chemical absorption by installing an intercooler in the system. Monoethanolamine (MEA) was used as the absorption solvent and Aspen HYSYS (ver. 9) was used to simulate the CO2capturing model. The positioning of the intercooler was studied in 10 different cases and compared with the base case 0 without intercooling. It was found that the installation of the intercooler improved the overall efficiency of CO2recovery in the designed system for all 1-10 cases. Intercooler case 9 was found to be the best case in providing the highest recovery of CO2(92.68%), together with MEA solvent savings of 2.51%. Furthermore, energy savings of 16 GJ/h was estimated from the absorber column alone, that would increase many folds for the entire CO2capture plant. The intercooling system, thus showed improved CO2recovery performance and potential of significant savings in MEA solvent loading and energy requirements, essential for the development of economical and optimized CO2capturing technology.
URI
http://hdl.handle.net/10454/18398
Version
Published version
Citation
Rehan M, Rahmanian N, Hyatt X et al (2017) Energy Savings in CO2 Capture System through Intercooling Mechanism. Energy Procedia. 142: 3683-3688.
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Link to published version
Link to Version of Record
https://doi.org/10.1016/j.egypro.2017.12.262
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Article
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