118227 20220908161754.0 doi 10.1016/j.jct.2016.03.026 sideral 94730 ART-2016-94730 eng Rivas, C. Thermodynamic properties of a CO2 - Rich mixture (CO2 + CH3OH) in conditions of interest for carbon dioxide capture and storage technology and other applications 2016 Methanol can be an impurity in transported and stored anthropogenic CO2 in carbon dioxide capture and storage technology; likewise, methanol is one of the most useful CO2 modifiers for supercritical processes. Therefore reliable values of thermodynamic properties of CO2 - rich mixtures CO2 + CH3OH are needed. We measured the following properties of a (CO2 + CH3OH) mixture with xx CO2=0.9700 in dense phase at six temperatures from 263.15 K to 313.15 K:The speed of sound, c, up to 194.49 MPa, using a double-path pulse-echo method at 5 MHz, for which a repeatability study gave an overall standard uncertainty of c, u(c) = 5.9 × 10-4c.The density, ¿, at pressures =20.00 MPa using a vibrating-tube densimeter with a standard uncertainty, u(¿) = 0.4 kg/m-3.Combining our c and ¿ experimental values and the isobaric specific heat capacity, cp, from the GERG equation of state (EoS), we calculated ¿, cp, the volume-dependent solubility parameter, dV, and the Joule-Thomson coefficient, µJT, at pressures =195.0 MPa. We are the first to report the adaptation for compressed gases of a calculation method based on numerical integration previously used only for liquids. The experimental and calculated values were compared with those from the PC-SAFT and GERG EoSs, allowing us to validate both EoSs to represent the experimental properties of the system under most conditions studied and the calculation method up to 195.0 MPa. Access copy available to the general public Unrestricted info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 2.726 2016 THERMODYNAMICS 13 / 58 = 0.224 2016 Q1 T1 CHEMISTRY, PHYSICAL 64 / 145 = 0.441 2016 Q2 T2 0.971 2016 Atomic and Molecular Physics, and Optics 2016 Q1 Physical and Theoretical Chemistry 2016 Q1 Materials Science (miscellaneous) 2016 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Gimeno, B. Universidad de Zaragoza (orcid)0000-0002-6992-5656 Bravo, R. Artal, M. Universidad de Zaragoza (orcid)0000-0003-1810-9488 Fernández, J. Universidad de Zaragoza (orcid)0000-0001-5256-6055 Blanco, S. T. Universidad de Zaragoza (orcid)0000-0003-2632-2916 Velasco, M. I. Universidad de Zaragoza (orcid)0000-0001-6607-6858 2012 755 Universidad de Zaragoza Dpto. Química Física Área Química Física 98 (2016), 272-281 J. Chem. Thermodyn. JOURNAL OF CHEMICAL THERMODYNAMICS 0021-9614 1210665 http://zaguan.unizar.es/record/118227/files/texto_completo.pdf Postprint 1351009 http://zaguan.unizar.es/record/118227/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:118227 articulos driver 2022-09-08-14:11:49 ARTICLE