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dc.contributor.authorNasrifar, K.*
dc.contributor.authorRahmanian, Nejat*
dc.date.accessioned2018-04-26T09:37:23Z
dc.date.available2018-04-26T09:37:23Z
dc.date.issued2018-03
dc.identifier.citationNasrifar K and Rahmanian N (2018) Equations of state with group contribution binary interaction parameters for calculation of two-phase envelopes for synthetic and real natural gas mixtures with heavy fractions. Oil & Gas Science and Technology. 73(7).en_US
dc.identifier.urihttp://hdl.handle.net/10454/15644
dc.descriptionYesen_US
dc.description.abstractThree equations of state with a group contribution model for binary interaction parameters were employed to calculate the vapor-liquid equilibria of synthetic and real natural gas mixtures with heavy fractions. In order to estimate the binary interaction parameters, critical temperatures, critical pressures and acentric factors of binary constituents of the mixture are required. The binary interaction parameter model also accounts for temperature. To perform phase equilibrium calculations, the heavy fractions were first discretized into 12 Single Carbon Numbers (SCN) using generalized molecular weights. Then, using the generalized molecular weights and specific gravities, the SCN were characterized. Afterwards, phase equilibrium calculations were performed employing a set of (nc + 1) equations where nc stands for the number of known components plus 12 SCN. The equations were solved iteratively using Newton's method. Predictions indicate that the use of binary interaction parameters for highly sour natural gas mixtures is quite important and must not be avoided. For sweet natural gas mixtures, the use of binary interaction parameters is less remarkable, however.en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttps://doi.org/10.2516/ogst/2017044en_US
dc.rights© K. Nasrifar and N. Rahmanian, published by IFP Energies nouvelles, 2018. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.en_US
dc.subjectEquations of state; Binary interaction parameters; Gas mixtures; Phase equilibrium calculationsen_US
dc.titleEquations of state with group contribution binary interaction parameters for calculation of two-phase envelopes for synthetic and real natural gas mixtures with heavy fractionsen_US
dc.status.refereedYesen_US
dc.date.Accepted2017-12-22
dc.date.application2018-03
dc.typeArticleen_US
dc.type.versionPublished versionen_US
refterms.dateFOA2018-07-28T03:59:51Z


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