Oxyfuel Combustion Makes Carbon Capture More Efficient

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dc.contributor.authorFózer, Dánielcs
dc.contributor.authorMizsey, Petercs
dc.contributor.authorVarbanov, Petar Sabevcs
dc.contributor.authorSzanyi, Ágnescs
dc.contributor.authorTalei, Saeedcs
dc.coverage.issue3cs
dc.coverage.volume9cs
dc.date.accessioned2025-06-19T12:58:10Z
dc.date.available2025-06-19T12:58:10Z
dc.date.issued2024-01-10cs
dc.description.abstractFossil energy carriers cannot be totally replaced, especially if nuclear power stations are stopped and renewable energy is not available. To fulfill emission regulations, however, points such as emission sources should be addressed. Besides desulfurization, carbon capture and utilization have become increasingly important engineering activities. Oxyfuel technologies offer new options to reduce greenhouse gas emissions; however, the use of clean oxygen instead of air can be dangerous in the case of certain existing technologies. To replace the inert effect of nitrogen, carbon dioxide is mixed with oxygen gas in the case of such air combustion processes. In this work, the features of carbon capture in five different flue gases of air combustion and such oxyfuel combustion where additional carbon dioxide is mixed with clean oxygen are studied and compared. The five different flue gases originate from the gas-fired power plant, coal-fired power plant, coal-fired combined heat and power plant, the aluminum production industry, and the cement manufacturing industry. Monoethanolamine, which is an industrially preferred solvent for carbon dioxide capture from gas streams at low pressures, is selected as an absorbent, and the same amount of carbon dioxide is captured; that is, always that amount of carbon dioxide is captured, which is the result of the fossil combustion process. ASPEN Plus is used for mathematical modeling. The results show that the oxyfuel combustion cases need significantly less energy, especially at high carbon dioxide removal rates, e.g., higher than 90%, than that of the air combustion cases. The savings can even be as high as 84%. Moreover, 100% carbon capture was also be completed. This finding can be due to the fact that in the oxyfuel combustion cases, the carbon dioxide concentration is much higher than that of the air combustion cases because of the inert carbon dioxide and that higher carbon dioxide concentration results in a higher driving force for the mass transfer. The oxyfuel combustion processes also show another advantage over the air combustion processes since no nitrogen oxides are produced in the combustion process.en
dc.formattextcs
dc.format.extent3250-3261cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationACS OMEGA. 2024, vol. 9, issue 3, p. 3250-3261.en
dc.identifier.doi10.1021/acsomega.3c05034cs
dc.identifier.issn2470-1343cs
dc.identifier.orcid0000-0001-5261-1645cs
dc.identifier.other196907cs
dc.identifier.researcheridB-8954-2009cs
dc.identifier.scopus6603469420cs
dc.identifier.urihttps://hdl.handle.net/11012/254280
dc.language.isoencs
dc.publisherAMER CHEMICAL SOCcs
dc.relation.ispartofACS OMEGAcs
dc.relation.urihttps://pubs.acs.org/doi/10.1021/acsomega.3c05034cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2470-1343/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectPOSTCOMBUSTION CO2 CAPTUREen
dc.subjectFIRED POWER-GENERATIONen
dc.subjectOXY-FUELFLUE-GASen
dc.subjectCOALen
dc.subjectABSORPTIONen
dc.subjectSIMULATIONen
dc.subjectMODELen
dc.subjectPLANTen
dc.subjectDESORPTIONen
dc.titleOxyfuel Combustion Makes Carbon Capture More Efficienten
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-196907en
sync.item.dbtypeVAVen
sync.item.insts2025.06.19 14:58:10en
sync.item.modts2025.06.19 14:33:13en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Laboratoř integrace procesůcs
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