Nitrogen-rich hyper-crosslinked polymers for low-pressure CO2 capture

Show simple item record Fayemiwo, Kehinde A. Vladisavljević, Goran T. Nabavi, Seyed Ali Benyahia, Brahim Hanak, Dawid P. Loponov, Konstantin N. Manović, Vasilije 2017-12-22T11:31:54Z 2017-12-22T11:31:54Z 2017-11-21
dc.identifier.citation Fayemiwo KA, Vladisavljević GT, Nabavi SA, Benyahia B, Hanak DP, Loponov KN, Manović V, Nitrogen-rich hyper-crosslinked polymers for low-pressure CO2 capture, Chemical Engineering Journal, Vol. 334, 15 February 2018, pp. 2004-2013 en_UK
dc.identifier.issn 1385-8947
dc.description.abstract A series of poly[methacrylamide-co-(ethylene glycol dimethacrylate)] (poly(MAAM-co-EGDMA)) porous polymeric particles with high CO2-philicity, referred to as HCP-MAAMs, were synthesised for CO2 capture. The polymers with a MAAM-to-EGDMA molar ratio from 0.3 to 0.9 were inherently nitrogen-enriched and exhibited a high affinity towards selective CO2 capture at low pressures. A techno-economic model based on a 580 MWel supercritical coal-fired power plant scenario was developed to evaluate the performance of the synthesised adsorbents. The presence and density of NH2 moieties within the polymer network were determined using Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS). The thermogravimetric analysis (TGA) showed that the polymers were thermally stable up to 515–532 K. The maximum CO2 adsorption capacity at 273 K was 1.56 mmol/g and the isosteric heat of adsorption was 28–35 kJ/mol. An increase in the density of amide groups within the polymer network resulted in a higher affinity towards CO2 at low pressure. At a CO2:N2 ratio of 15:85, CO2/N2 selectivity at 273 K was 52 at 1 bar and reached 104 at ultra-low CO2 partial pressure. The techno-economic analysis revealed that retrofitting a HCP-MAAM-based CO2 capture system led to a net energy penalty of 7.7–8.0%HHV points, which was noticeably lower than that reported for MEA or chilled ammonia scrubbing capture systems. The specific heat requirement was superior to the majority of conventional solvents such as MDEA-PZ and K2CO3. Importantly, the economic performance of the HCP-MAAM retrofit scenario was found to be competitive to chemical solvent scrubbing scenarios. en_UK
dc.language.iso en en_UK
dc.publisher Elsevier en_UK
dc.rights Attribution 4.0 International *
dc.rights Attribution 4.0 International (CC BY 4.0) You are free to: Share — copy and redistribute the material in any medium or format Adapt — remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
dc.rights.uri *
dc.subject Amine and amide groups en_UK
dc.subject CO2 solid absorbent en_UK
dc.subject Hyper-crosslinked polymeric particles en_UK
dc.subject Methacrylamide en_UK
dc.subject Carbon capture and storage en_UK
dc.subject Post-combustion CO2 capture en_UK
dc.title Nitrogen-rich hyper-crosslinked polymers for low-pressure CO2 capture en_UK
dc.type Article en_UK

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