The Experts below are selected from a list of 282 Experts worldwide ranked by ideXlab platform
Juhani Aittamaa - One of the best experts on this subject based on the ideXlab platform.
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vapor liquid equilibrium for binary system of Diethyl Sulfide cyclohexane at 353 15 and 343 15 k and Diethyl Sulfide 2 ethoxy 2 methylpropane at 343 15 and 333 15 k
Fluid Phase Equilibria, 2007Co-Authors: Erlin Sapei, Kari I. Keskinen, Anna Zaytseva, Petri Uusikyyny, Juhani AittamaaAbstract:Abstract Isothermal vapor–liquid equilibrium (VLE) for Diethyl Sulfide + cyclohexane were measured at 353.15 and 343.15 K and Diethyl Sulfide + 2-ethoxy-2-methylpropane were measured at 343.15 and 333.15 K with a circulation still. All systems exhibit slight positive deviation from ideality. No azeotropic behavior was found in any of the systems studied. The experimental results were correlated with the Wilson model with temperature dependent parameters and also compared with the original UNIFAC, and the COSMO-RS predictive models. The measured Diethyl Sulfide + cyclohexane VLE have been used simultaneously with the excess enthalpy from literature for a correlation of temperature-dependent Wilson parameters. Excess molar enthalpies at 298.15 K for Diethyl Sulfide + 2-ethoxy-2-methylpropane system were calculated from the VLE data. Analyses of liquid and vapor-phase composition were determined with gas chromatography. All VLE measurements passed the used thermodynamic consistency tests (integral, infinite dilution and point test).
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vapor liquid equilibrium for binary system of Diethyl Sulfide n hexane at 338 15 and 323 15 k and Diethyl Sulfide 1 hexene at 333 15 and 323 15 k
Journal of Chemical & Engineering Data, 2007Co-Authors: Erlin Sapei, Kari I. Keskinen, Anna Zaytseva, Petri Uusikyyny, Juhani AittamaaAbstract:Isothermal vapor−liquid equilibrium (VLE) for Diethyl Sulfide + n-hexane at (338.15 and 323.15) K and Diethyl Sulfide + 1-hexene at (333.15 and 323.15) K were measured with a circulation still. All systems exhibit a slight positive deviation from ideality. No azeotropic behavior was found in any of the systems studied. The experimental results were correlated with the Wilson model and also compared with the original UNIFAC and the COSMO-RS predictive models. The measured Diethyl Sulfide + n-hexane VLE have been used simultaneously with the excess enthalpy from literature for a correlation of temperature-dependent Wilson parameters. Excess molar enthalpies at 318.15 K for the Diethyl Sulfide + 1-hexene system were calculated from the VLE data. Analyses of liquid- and vapor-phase compositions were determined with gas chromatography. All VLE measurements passed the thermodynamic consistency tests that were used (integral, infinite dilution, and point test).
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Vapor–liquid equilibrium for binary system of Diethyl Sulfide + cyclohexane at 353.15 and 343.15 K and Diethyl Sulfide + 2-ethoxy-2-methylpropane at 343.15 and 333.15 K
Fluid Phase Equilibria, 2007Co-Authors: Erlin Sapei, Petri Uusi-kyyny, Kari I. Keskinen, Anna Zaytseva, Juhani AittamaaAbstract:Abstract Isothermal vapor–liquid equilibrium (VLE) for Diethyl Sulfide + cyclohexane were measured at 353.15 and 343.15 K and Diethyl Sulfide + 2-ethoxy-2-methylpropane were measured at 343.15 and 333.15 K with a circulation still. All systems exhibit slight positive deviation from ideality. No azeotropic behavior was found in any of the systems studied. The experimental results were correlated with the Wilson model with temperature dependent parameters and also compared with the original UNIFAC, and the COSMO-RS predictive models. The measured Diethyl Sulfide + cyclohexane VLE have been used simultaneously with the excess enthalpy from literature for a correlation of temperature-dependent Wilson parameters. Excess molar enthalpies at 298.15 K for Diethyl Sulfide + 2-ethoxy-2-methylpropane system were calculated from the VLE data. Analyses of liquid and vapor-phase composition were determined with gas chromatography. All VLE measurements passed the used thermodynamic consistency tests (integral, infinite dilution and point test).
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Vapor−Liquid Equilibrium for Binary System of Diethyl Sulfide + n-Heptane and Diethyl Sulfide + 2,2,4-Trimethylpentane at (363.15 and 353.15) K
Journal of Chemical & Engineering Data, 2007Co-Authors: Erlin Sapei, Petri Uusi-kyyny, Kari I. Keskinen, Anna Zaytseva, Juhani AittamaaAbstract:Isothermal vapor−liquid equilibrium (VLE) for Diethyl Sulfide + n-heptane and Diethyl Sulfide + 2,2,4-trimethylpentane at (363.15 and 353.15) K were measured with a circulation still. Maximum pressure azeotropes were found in both systems. The experimental results were correlated with the temperature-dependent Wilson model and also compared with the original UNIFAC and COSMO-RS predictive models. The measured Diethyl Sulfide + n-heptane VLE have been used simultaneously with the excess enthalpy from literature for a correlation of temperature-dependent Wilson parameters. Analyses of liquid- and vapor-phase composition were determined with a gas chromatograph and a refractometer. All VLE measurements passed the three thermodynamic consistency tests used.
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Vapor−Liquid Equilibrium for Binary System of Diethyl Sulfide + n-Hexane at (338.15 and 323.15) K and Diethyl Sulfide + 1-Hexene at (333.15 and 323.15) K
Journal of Chemical & Engineering Data, 2007Co-Authors: Erlin Sapei, Petri Uusi-kyyny, Kari I. Keskinen, Anna Zaytseva, Juhani AittamaaAbstract:Isothermal vapor−liquid equilibrium (VLE) for Diethyl Sulfide + n-hexane at (338.15 and 323.15) K and Diethyl Sulfide + 1-hexene at (333.15 and 323.15) K were measured with a circulation still. All systems exhibit a slight positive deviation from ideality. No azeotropic behavior was found in any of the systems studied. The experimental results were correlated with the Wilson model and also compared with the original UNIFAC and the COSMO-RS predictive models. The measured Diethyl Sulfide + n-hexane VLE have been used simultaneously with the excess enthalpy from literature for a correlation of temperature-dependent Wilson parameters. Excess molar enthalpies at 318.15 K for the Diethyl Sulfide + 1-hexene system were calculated from the VLE data. Analyses of liquid- and vapor-phase compositions were determined with gas chromatography. All VLE measurements passed the thermodynamic consistency tests that were used (integral, infinite dilution, and point test).
P. Decyk - One of the best experts on this subject based on the ideXlab platform.
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Relation between Chemisorption and Catalytic Transformation of R2S Compounds on Faujasite-Type Zeolites†
Langmuir, 1999Co-Authors: Maria Ziolek, P. DecykAbstract:The adsorption and transformation of sulfur organic compounds on faujasite-type zeolites are considered using ethanethiol and Diethyl Sulfide molecules as examples. Alkali-metal-exchanged and -protonated forms of the zeolites presenting various nature and various strength of the active centers were applied. The difference in thiol and Sulfide chemisorption on MNaY zeolites (M = Li, K, Rb, Cs) relies on the formation of the hydrogen bond between ethanethiol and the basic sites of zeolites together with the coordination bond which occurs for both thiol and Sulfide. That implicates the high activity of MNaY zeolites in the decomposition of ethanethiol. Protonated forms of zeolites are highly active in the transformation of Diethyl Sulfide to ethene and ethanethiol thanks to the formation of hydrogen bonding species followed by the protonation of the Sulfide molecule.
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Catalytic decomposition of organic sulfur compounds—effect of zeolite acidity
Studies in Surface Science and Catalysis, 1997Co-Authors: Maria Ziolek, P. Decyk, J. Czyzniewska, H.g. KargeAbstract:Decomposition of ethanethiol, Diethyl Sulfide and thiophene on Y zeolites modified with ammonium and alkali metal cations as well as on dealuminated Y and ZSM-5 zeolites was studied by means of GC analysis. The acidity of zeolites was measured using TPD/MS of ammonia or pyridine and a test reaction. The influence of the nature of the alkali metal cations on the strength of neighbouring acidic hydroxyls was determined. The catalytic studies have shown that the nature of the alkali metal cation and the strength of Bronsted acid centres strongly influence the activity and selectivity in ethanethiol and Diethyl Sulfide conversion. Thiophene did not decompose on M I Y and ZSM-5 zeolites. Its transformation required the presence of strong Bronsted acid centres and large pore zeolites.
Maria Ziolek - One of the best experts on this subject based on the ideXlab platform.
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Relation between Chemisorption and Catalytic Transformation of R2S Compounds on Faujasite-Type Zeolites†
Langmuir, 1999Co-Authors: Maria Ziolek, P. DecykAbstract:The adsorption and transformation of sulfur organic compounds on faujasite-type zeolites are considered using ethanethiol and Diethyl Sulfide molecules as examples. Alkali-metal-exchanged and -protonated forms of the zeolites presenting various nature and various strength of the active centers were applied. The difference in thiol and Sulfide chemisorption on MNaY zeolites (M = Li, K, Rb, Cs) relies on the formation of the hydrogen bond between ethanethiol and the basic sites of zeolites together with the coordination bond which occurs for both thiol and Sulfide. That implicates the high activity of MNaY zeolites in the decomposition of ethanethiol. Protonated forms of zeolites are highly active in the transformation of Diethyl Sulfide to ethene and ethanethiol thanks to the formation of hydrogen bonding species followed by the protonation of the Sulfide molecule.
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Catalytic decomposition of organic sulfur compounds—effect of zeolite acidity
Studies in Surface Science and Catalysis, 1997Co-Authors: Maria Ziolek, P. Decyk, J. Czyzniewska, H.g. KargeAbstract:Decomposition of ethanethiol, Diethyl Sulfide and thiophene on Y zeolites modified with ammonium and alkali metal cations as well as on dealuminated Y and ZSM-5 zeolites was studied by means of GC analysis. The acidity of zeolites was measured using TPD/MS of ammonia or pyridine and a test reaction. The influence of the nature of the alkali metal cations on the strength of neighbouring acidic hydroxyls was determined. The catalytic studies have shown that the nature of the alkali metal cation and the strength of Bronsted acid centres strongly influence the activity and selectivity in ethanethiol and Diethyl Sulfide conversion. Thiophene did not decompose on M I Y and ZSM-5 zeolites. Its transformation required the presence of strong Bronsted acid centres and large pore zeolites.
Anna Zaytseva - One of the best experts on this subject based on the ideXlab platform.
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vapor liquid equilibrium for binary system of Diethyl Sulfide cyclohexane at 353 15 and 343 15 k and Diethyl Sulfide 2 ethoxy 2 methylpropane at 343 15 and 333 15 k
Fluid Phase Equilibria, 2007Co-Authors: Erlin Sapei, Kari I. Keskinen, Anna Zaytseva, Petri Uusikyyny, Juhani AittamaaAbstract:Abstract Isothermal vapor–liquid equilibrium (VLE) for Diethyl Sulfide + cyclohexane were measured at 353.15 and 343.15 K and Diethyl Sulfide + 2-ethoxy-2-methylpropane were measured at 343.15 and 333.15 K with a circulation still. All systems exhibit slight positive deviation from ideality. No azeotropic behavior was found in any of the systems studied. The experimental results were correlated with the Wilson model with temperature dependent parameters and also compared with the original UNIFAC, and the COSMO-RS predictive models. The measured Diethyl Sulfide + cyclohexane VLE have been used simultaneously with the excess enthalpy from literature for a correlation of temperature-dependent Wilson parameters. Excess molar enthalpies at 298.15 K for Diethyl Sulfide + 2-ethoxy-2-methylpropane system were calculated from the VLE data. Analyses of liquid and vapor-phase composition were determined with gas chromatography. All VLE measurements passed the used thermodynamic consistency tests (integral, infinite dilution and point test).
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vapor liquid equilibrium for binary system of Diethyl Sulfide n hexane at 338 15 and 323 15 k and Diethyl Sulfide 1 hexene at 333 15 and 323 15 k
Journal of Chemical & Engineering Data, 2007Co-Authors: Erlin Sapei, Kari I. Keskinen, Anna Zaytseva, Petri Uusikyyny, Juhani AittamaaAbstract:Isothermal vapor−liquid equilibrium (VLE) for Diethyl Sulfide + n-hexane at (338.15 and 323.15) K and Diethyl Sulfide + 1-hexene at (333.15 and 323.15) K were measured with a circulation still. All systems exhibit a slight positive deviation from ideality. No azeotropic behavior was found in any of the systems studied. The experimental results were correlated with the Wilson model and also compared with the original UNIFAC and the COSMO-RS predictive models. The measured Diethyl Sulfide + n-hexane VLE have been used simultaneously with the excess enthalpy from literature for a correlation of temperature-dependent Wilson parameters. Excess molar enthalpies at 318.15 K for the Diethyl Sulfide + 1-hexene system were calculated from the VLE data. Analyses of liquid- and vapor-phase compositions were determined with gas chromatography. All VLE measurements passed the thermodynamic consistency tests that were used (integral, infinite dilution, and point test).
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Vapor–liquid equilibrium for binary system of Diethyl Sulfide + cyclohexane at 353.15 and 343.15 K and Diethyl Sulfide + 2-ethoxy-2-methylpropane at 343.15 and 333.15 K
Fluid Phase Equilibria, 2007Co-Authors: Erlin Sapei, Petri Uusi-kyyny, Kari I. Keskinen, Anna Zaytseva, Juhani AittamaaAbstract:Abstract Isothermal vapor–liquid equilibrium (VLE) for Diethyl Sulfide + cyclohexane were measured at 353.15 and 343.15 K and Diethyl Sulfide + 2-ethoxy-2-methylpropane were measured at 343.15 and 333.15 K with a circulation still. All systems exhibit slight positive deviation from ideality. No azeotropic behavior was found in any of the systems studied. The experimental results were correlated with the Wilson model with temperature dependent parameters and also compared with the original UNIFAC, and the COSMO-RS predictive models. The measured Diethyl Sulfide + cyclohexane VLE have been used simultaneously with the excess enthalpy from literature for a correlation of temperature-dependent Wilson parameters. Excess molar enthalpies at 298.15 K for Diethyl Sulfide + 2-ethoxy-2-methylpropane system were calculated from the VLE data. Analyses of liquid and vapor-phase composition were determined with gas chromatography. All VLE measurements passed the used thermodynamic consistency tests (integral, infinite dilution and point test).
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Vapor−Liquid Equilibrium for Binary System of Diethyl Sulfide + n-Heptane and Diethyl Sulfide + 2,2,4-Trimethylpentane at (363.15 and 353.15) K
Journal of Chemical & Engineering Data, 2007Co-Authors: Erlin Sapei, Petri Uusi-kyyny, Kari I. Keskinen, Anna Zaytseva, Juhani AittamaaAbstract:Isothermal vapor−liquid equilibrium (VLE) for Diethyl Sulfide + n-heptane and Diethyl Sulfide + 2,2,4-trimethylpentane at (363.15 and 353.15) K were measured with a circulation still. Maximum pressure azeotropes were found in both systems. The experimental results were correlated with the temperature-dependent Wilson model and also compared with the original UNIFAC and COSMO-RS predictive models. The measured Diethyl Sulfide + n-heptane VLE have been used simultaneously with the excess enthalpy from literature for a correlation of temperature-dependent Wilson parameters. Analyses of liquid- and vapor-phase composition were determined with a gas chromatograph and a refractometer. All VLE measurements passed the three thermodynamic consistency tests used.
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Vapor−Liquid Equilibrium for Binary System of Diethyl Sulfide + n-Hexane at (338.15 and 323.15) K and Diethyl Sulfide + 1-Hexene at (333.15 and 323.15) K
Journal of Chemical & Engineering Data, 2007Co-Authors: Erlin Sapei, Petri Uusi-kyyny, Kari I. Keskinen, Anna Zaytseva, Juhani AittamaaAbstract:Isothermal vapor−liquid equilibrium (VLE) for Diethyl Sulfide + n-hexane at (338.15 and 323.15) K and Diethyl Sulfide + 1-hexene at (333.15 and 323.15) K were measured with a circulation still. All systems exhibit a slight positive deviation from ideality. No azeotropic behavior was found in any of the systems studied. The experimental results were correlated with the Wilson model and also compared with the original UNIFAC and the COSMO-RS predictive models. The measured Diethyl Sulfide + n-hexane VLE have been used simultaneously with the excess enthalpy from literature for a correlation of temperature-dependent Wilson parameters. Excess molar enthalpies at 318.15 K for the Diethyl Sulfide + 1-hexene system were calculated from the VLE data. Analyses of liquid- and vapor-phase compositions were determined with gas chromatography. All VLE measurements passed the thermodynamic consistency tests that were used (integral, infinite dilution, and point test).
Erlin Sapei - One of the best experts on this subject based on the ideXlab platform.
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Phase equilibria on binary systems containing Diethyl Sulfide
Fluid Phase Equilibria, 2011Co-Authors: Erlin Sapei, Petri Uusi-kyyny, Kari I. Keskinen, Juha-pekka Pokki, Ville AlopaeusAbstract:Abstract Isothermal vapor–liquid equilibrium (VLE) of the following systems was measured with a recirculation still: Diethyl Sulfide + ethanol at 343.15 K, Diethyl Sulfide + 1-propanol at 358.15 K, and Diethyl Sulfide + propyl acetate at 363.15 K. Diethyl Sulfide + ethanol at 343.15 K and Diethyl Sulfide + 1-propanol at 358.15 K systems exhibit positive deviation from Raoult's law, whereas Diethyl Sulfide + propyl acetate at 363.15 K system exhibits only slight positive deviation from Raoult's law. A maximum pressure azeotrope was found in the systems Diethyl Sulfide + ethanol (x1 = 0.372, P = 88.4 kPa, T = 343.15 K) and Diethyl Sulfide + 1-propanol (x1 = 0.640, P = 96.8 kPa, T = 358.15 K). No azeotropic behavior was found in Diethyl Sulfide + propyl acetate system at 363.15 K. The experimental results were correlated with the Wilson model and compared to COSMO-SAC predictive model. Liquid and vapor phase compositions were determined with gas chromatography. All measured data sets passed the thermodynamic consistency tests. The activity coefficients at infinite dilution are also presented.
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vapor liquid equilibrium for binary system of Diethyl Sulfide cyclohexane at 353 15 and 343 15 k and Diethyl Sulfide 2 ethoxy 2 methylpropane at 343 15 and 333 15 k
Fluid Phase Equilibria, 2007Co-Authors: Erlin Sapei, Kari I. Keskinen, Anna Zaytseva, Petri Uusikyyny, Juhani AittamaaAbstract:Abstract Isothermal vapor–liquid equilibrium (VLE) for Diethyl Sulfide + cyclohexane were measured at 353.15 and 343.15 K and Diethyl Sulfide + 2-ethoxy-2-methylpropane were measured at 343.15 and 333.15 K with a circulation still. All systems exhibit slight positive deviation from ideality. No azeotropic behavior was found in any of the systems studied. The experimental results were correlated with the Wilson model with temperature dependent parameters and also compared with the original UNIFAC, and the COSMO-RS predictive models. The measured Diethyl Sulfide + cyclohexane VLE have been used simultaneously with the excess enthalpy from literature for a correlation of temperature-dependent Wilson parameters. Excess molar enthalpies at 298.15 K for Diethyl Sulfide + 2-ethoxy-2-methylpropane system were calculated from the VLE data. Analyses of liquid and vapor-phase composition were determined with gas chromatography. All VLE measurements passed the used thermodynamic consistency tests (integral, infinite dilution and point test).
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vapor liquid equilibrium for binary system of Diethyl Sulfide n hexane at 338 15 and 323 15 k and Diethyl Sulfide 1 hexene at 333 15 and 323 15 k
Journal of Chemical & Engineering Data, 2007Co-Authors: Erlin Sapei, Kari I. Keskinen, Anna Zaytseva, Petri Uusikyyny, Juhani AittamaaAbstract:Isothermal vapor−liquid equilibrium (VLE) for Diethyl Sulfide + n-hexane at (338.15 and 323.15) K and Diethyl Sulfide + 1-hexene at (333.15 and 323.15) K were measured with a circulation still. All systems exhibit a slight positive deviation from ideality. No azeotropic behavior was found in any of the systems studied. The experimental results were correlated with the Wilson model and also compared with the original UNIFAC and the COSMO-RS predictive models. The measured Diethyl Sulfide + n-hexane VLE have been used simultaneously with the excess enthalpy from literature for a correlation of temperature-dependent Wilson parameters. Excess molar enthalpies at 318.15 K for the Diethyl Sulfide + 1-hexene system were calculated from the VLE data. Analyses of liquid- and vapor-phase compositions were determined with gas chromatography. All VLE measurements passed the thermodynamic consistency tests that were used (integral, infinite dilution, and point test).
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Vapor–liquid equilibrium for binary system of Diethyl Sulfide + cyclohexane at 353.15 and 343.15 K and Diethyl Sulfide + 2-ethoxy-2-methylpropane at 343.15 and 333.15 K
Fluid Phase Equilibria, 2007Co-Authors: Erlin Sapei, Petri Uusi-kyyny, Kari I. Keskinen, Anna Zaytseva, Juhani AittamaaAbstract:Abstract Isothermal vapor–liquid equilibrium (VLE) for Diethyl Sulfide + cyclohexane were measured at 353.15 and 343.15 K and Diethyl Sulfide + 2-ethoxy-2-methylpropane were measured at 343.15 and 333.15 K with a circulation still. All systems exhibit slight positive deviation from ideality. No azeotropic behavior was found in any of the systems studied. The experimental results were correlated with the Wilson model with temperature dependent parameters and also compared with the original UNIFAC, and the COSMO-RS predictive models. The measured Diethyl Sulfide + cyclohexane VLE have been used simultaneously with the excess enthalpy from literature for a correlation of temperature-dependent Wilson parameters. Excess molar enthalpies at 298.15 K for Diethyl Sulfide + 2-ethoxy-2-methylpropane system were calculated from the VLE data. Analyses of liquid and vapor-phase composition were determined with gas chromatography. All VLE measurements passed the used thermodynamic consistency tests (integral, infinite dilution and point test).
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Vapor−Liquid Equilibrium for Binary System of Diethyl Sulfide + n-Heptane and Diethyl Sulfide + 2,2,4-Trimethylpentane at (363.15 and 353.15) K
Journal of Chemical & Engineering Data, 2007Co-Authors: Erlin Sapei, Petri Uusi-kyyny, Kari I. Keskinen, Anna Zaytseva, Juhani AittamaaAbstract:Isothermal vapor−liquid equilibrium (VLE) for Diethyl Sulfide + n-heptane and Diethyl Sulfide + 2,2,4-trimethylpentane at (363.15 and 353.15) K were measured with a circulation still. Maximum pressure azeotropes were found in both systems. The experimental results were correlated with the temperature-dependent Wilson model and also compared with the original UNIFAC and COSMO-RS predictive models. The measured Diethyl Sulfide + n-heptane VLE have been used simultaneously with the excess enthalpy from literature for a correlation of temperature-dependent Wilson parameters. Analyses of liquid- and vapor-phase composition were determined with a gas chromatograph and a refractometer. All VLE measurements passed the three thermodynamic consistency tests used.