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Solubilities of CO2, CH4, H2, CO and N2 in choline chloride/urea
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Energivetenskap.
Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Multiphase Complex System, Institute of Process Engineering, Chinese Academy of Sciences.
Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Multiphase Complex System, Institute of Process Engineering, Chinese Academy of Sciences.
Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Multiphase Complex System, Institute of Process Engineering, Chinese Academy of Sciences.
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Rekke forfattare: 52017 (engelsk)Inngår i: Green Energy & Environment, ISSN 2468-0257, Vol. 1, nr 3, s. 195-200Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Solubilities of CO2, CH4, H2, CO and N2 in choline chloride/urea (ChCl/Urea) were investigated at temperatures ranging from 308.2 to 328.2 K and pressures ranging from 0.6 to 4.6 MPa. The results show that the solubilities of gases increase with increasing pressure and decreasing temperature. The solubility of CO2 is higher than that of CH4, H2, CO and N2, which indicates that ChCl/Urea may be used as a potential solvent for CO2 capture from the gas mixture. Solubility of CO2 in ChCl/Urea was fitted by Non-Random Two-Liquid and Redlich–Kwong (NRTL-RK) model, and solubility of CH4, H2, CO or N2 in ChCl/Urea was fitted by Henry's Law. The standard enthalpy, standard Gibbs energy and standard entropy of gases were calculated. Additionally, the CO2/CH4 selectivities in water, dry ChCl/Urea and aqueous ChCl/Urea were further discussed.

sted, utgiver, år, opplag, sider
Elsevier, 2017. Vol. 1, nr 3, s. 195-200
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Forskningsprogram
Energiteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-59706DOI: 10.1016/j.gee.2016.09.001OAI: oai:DiVA.org:ltu-59706DiVA, id: diva2:1034652
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Konferensartikel i tidskrift; 2017-03-28 (rokbeg)

Tilgjengelig fra: 2016-10-12 Laget: 2016-10-12 Sist oppdatert: 2018-09-13bibliografisk kontrollert

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