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Choosing amine-based absorbents for CO2 capture

dc.contributor.authorGomes, João
dc.contributor.authorSantos, Samuel
dc.contributor.authorBordado, João
dc.date.accessioned2016-03-11T11:29:43Z
dc.date.available2016-03-11T11:29:43Z
dc.date.issued2015-01-02
dc.description.abstractCO2 capture from gaseous effluents is one of the great challenges faced by chemical and environmental engineers, as the increase in CO2 levels in the Earth atmosphere might be responsible for dramatic climate changes. From the existing capture technologies, the only proven and mature technology is chemical absorption using aqueous amine solutions. However, bearing in mind that this process is somewhat expensive, it is important to choose the most efficient and, at the same time, the least expensive solvents. For this purpose, a pilot test facility was assembled and includes an absorption column, as well as a stripping column, a heat exchanger between the two columns, a reboiler for the stripping column, pumping systems, surge tanks and all necessary instrumentation and control systems. Some different aquous amine solutions were tested on this facility and it was found that, from a set of six tested amines, diethanol amine is the one that turned out to be the most economical choice, as it showed a higher CO2 loading capacity (0.982 mol of CO2 per mol of amine) and the lowest price per litre (25.70 ¤/L), even when compared with monoethanolamine, the benchmark solvent, exhibiting a price per litre of 30.50 ¤/L.pt_PT
dc.identifier.citationSANTOS, João; SANTOS, Samuel; BORDADO, João; - Choosing amine-based absorbents for CO2 capture. Environmental Technology. ISSN. 0959-3330. Vol. 36, N.º 1 (2015), pp. 19-25pt_PT
dc.identifier.doi10.1080/09593330.2014.934742pt_PT
dc.identifier.issn0959-3330
dc.identifier.issn1479-487X
dc.identifier.urihttp://hdl.handle.net/10400.21/5832
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherTAYLOR & FRANCIS LTDpt_PT
dc.relation.publisherversionhttp://www.tandfonline.com/doi/abs/10.1080/09593330.2014.934742pt_PT
dc.subjectCarbon dioxidept_PT
dc.subjectChemical absorptionpt_PT
dc.subjectAqueous amine solutionspt_PT
dc.titleChoosing amine-based absorbents for CO2 capturept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage25pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage19pt_PT
oaire.citation.volume36pt_PT
person.familyNameGomes
person.givenNameJoão
person.identifier60203
person.identifier.ciencia-id0212-E6D6-566C
person.identifier.orcid0000-0003-2579-6669
person.identifier.scopus-author-id56113031900
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicatione44cd72e-bcbb-4612-a274-60cb1915bc0c
relation.isAuthorOfPublication.latestForDiscoverye44cd72e-bcbb-4612-a274-60cb1915bc0c

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