dc.contributor.author | Halstensen, Maths | |
dc.contributor.author | Jilvero, Henrik | |
dc.contributor.author | Jinadasa, Wathsala | |
dc.contributor.author | Jens, Klaus-Joachim | |
dc.date.accessioned | 2018-01-10T12:53:25Z | |
dc.date.available | 2018-01-10T12:53:25Z | |
dc.date.created | 2018-01-01T15:45:24Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 2090-9063 | |
dc.identifier.uri | http://hdl.handle.net/11250/2476782 | |
dc.description.abstract | Liquid speciation is important for reliable process design and optimization of gas-liquid absorption process. Liquid-phase speciation methods are currently available, although they involve tedious and time-consuming laboratory work. Raman spectroscopy is well suited for in situ monitoring of aqueous chemical reactions. Here, we report on the development of a method for speciation of the CO2-NH3-H2O equilibrium using Raman spectroscopy and PLS-R modeling. The quantification methodology presented here offers a novel approach to provide rapid and reliable predictions of the carbon distribution of the CO2-NH3-H2O system, which may be used for process control and optimization. Validation of the reported speciation method which is based on independent, known, NH3-CO2-H2O solutions shows estimated prediction uncertainties for carbonate, bicarbonate, and carbamate of 6.45 mmol/kg H2O, 34.39 mmol/kg H2O, and 100.9 mmol/kg H2O, respectively. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Equilibrium Measurements of the NH3-CO2-H2O System: Speciation Based on Raman Spectroscopy and Multivariate Modeling | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | publishedVersion | nb_NO |
dc.source.volume | 2017 | nb_NO |
dc.source.journal | Journal of Chemistry | nb_NO |
dc.identifier.doi | 10.1155/2017/7590506 | |
dc.identifier.cristin | 1533281 | |
cristin.unitcode | 222,58,2,0 | |
cristin.unitcode | 222,58,3,0 | |
cristin.unitname | Institutt for elektro, IT og kybernetikk | |
cristin.unitname | Institutt for prosess-, energi- og miljøteknologi | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |