An analytical method of predicting Lee-Kesler-Ploecker binary interaction coefficients: Part 1, For non-polar hydrocarbon mixtures

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An analytical method is proposed for finding numerical values of binary interaction coefficients for non-polar hydrocarbon mixtures when the Lee-Kesler (LK) equation of state is applied. The method is based on solving simultaneous equations, which are Ploecker`s mixing rules for pseudocritical parameters of a mixture, and the Lee-Kesler equation for the saturation line. For a hydrocarbon mixture, the method allows prediction of {kappa}{sub ij} interaction coefficients (ICs) which are close to values obtained by processing experimental p-v-t data on the saturation line and subsequent averaging. For mixtures of hydrocarbon molecules containing from 2 to 9 carbon atoms, the divergence between ... continued below

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14 p.

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Sand, J.R. December 31, 1994.

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Description

An analytical method is proposed for finding numerical values of binary interaction coefficients for non-polar hydrocarbon mixtures when the Lee-Kesler (LK) equation of state is applied. The method is based on solving simultaneous equations, which are Ploecker`s mixing rules for pseudocritical parameters of a mixture, and the Lee-Kesler equation for the saturation line. For a hydrocarbon mixture, the method allows prediction of {kappa}{sub ij} interaction coefficients (ICs) which are close to values obtained by processing experimental p-v-t data on the saturation line and subsequent averaging. For mixtures of hydrocarbon molecules containing from 2 to 9 carbon atoms, the divergence between calculated and experimentally based ICs is no more than {plus_minus}0.4%. The possibility of extending application of this method to other non-polar substances is discussed.

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14 p.

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OSTI as DE95014033

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  • 12. symposium on thermophysical properties, Boulder, CO (United States), 19-24 Jun 1994

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  • Other: DE95014033
  • Report No.: CONF-940633--9
  • Grant Number: AC05-84OR21400
  • DOI: 10.2172/105495 | External Link
  • Office of Scientific & Technical Information Report Number: 105495
  • Archival Resource Key: ark:/67531/metadc624135

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  • December 31, 1994

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  • June 16, 2015, 7:43 a.m.

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  • Jan. 21, 2016, 3:25 p.m.

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Sand, J.R. An analytical method of predicting Lee-Kesler-Ploecker binary interaction coefficients: Part 1, For non-polar hydrocarbon mixtures, report, December 31, 1994; Tennessee. (digital.library.unt.edu/ark:/67531/metadc624135/: accessed April 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.