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Tsutomu Hirose - One of the best experts on this subject based on the ideXlab platform.

  • Phase equilibria for the ternary system Methyl Oleate + tocopherol + supercritical CO2
    Journal of Chemical & Engineering Data, 2005
    Co-Authors: Tao Fang, Mitsuru Sasaki, Motonobu Goto, Tsutomu Hirose
    Abstract:

    To study the feasibility of using supercritical CO2 to concentrate natural tocopherols from soybean oil deodorizer distillate (DOD), we measured the ternary phase equilibrium data for Methyl Oleate + α-tocopherol + supercritical CO2 from (313.15 to 353.15) K in the pressure range from (10 to 29) MPa. The measured data were well correlated using the Soave−Redlich−Kwong EOS with the Adachi−Sugie mixing rule. The separation factor between Methyl Oleate and tocopherol in CO2 was investigated. On the basis of these results, equilibrium lines in the experimental ranges were obtained that provide fundamental data for concentrating tocopherols with supercritical CO2. In addition, because the distribution of tocopherol in supercritical CO2 increases markedly because of the abundance of Methyl Oleate, Methyl Oleate was shown to act as a cosolvent for tocopherol. Finally, according to the obtained results, a strategy for a separation operation was suggested. Visual observation also provided information useful in fur...

  • Phase equilibria for binary systems of Methyl Oleate-supercritical CO2 and α-tocopherol-supercritical CO2
    The Journal of Supercritical Fluids, 2004
    Co-Authors: Tao Fang, Motonobu Goto, Zhi Yun, Xiaolin Ding, Tsutomu Hirose
    Abstract:

    Abstract In order to study the possibility of using supercritical CO 2 to concentrate tocopherols from soybean oil de-odorizer distillate (DOD), the binary phase equilibrium data for Methyl Oleate–CO 2 and α-tocopherol–CO 2 were measured at 313.15–353.15 K in the pressure ranges of 5–23 MPa for Methyl Oleate and 5–30 MPa for α-tocopherol, respectively. The measured data were well correlated using the Soave–Redlich–Kwong (SRK) equation of state (EOS) with the Adachi–Sugie (AS) mixing rule. The solubilities and distribution coefficients of Methyl Oleate and α-tocopherol in CO 2 were investigated. Finally, on the basis of these results, a conclusion was preliminarily drawn, supercritical CO 2 can be used to concentrate natural tocopherols from the esterified DOD in the experimental range investigated. In addition, the critical points of Methyl Oleate–CO 2 at three temperatures were estimated.

V. A. Semikolenov - One of the best experts on this subject based on the ideXlab platform.

  • kinetic peculiarities of cis trans Methyl Oleate formation during hydrogenation of Methyl linOleate over pd mgo
    Applied Catalysis A-general, 2005
    Co-Authors: I. V. Deliy, Nicoletta Ravasio, Rinaldo Psaro, Nataliya V. Maksimchuk, Sandro Recchia, E. A. Paukshtis, A. V. Golovin, Dal V Santo, V. A. Semikolenov
    Abstract:

    Kinetic peculiarities of cis and trans Methyl Oleate formation in the course of Methyl linOleate hydrogenation over Pd/MgO were studied. Liquid phase hydrogenation was carried out in temperature range of 303–323 K and under hydrogen pressure within 1–10 bar. Gas–liquid chromatography, IR and 13 C NMR techniques were employed to characterize the reaction products. Effects of hydrogen pressure and reaction temperature on cis and trans Methyl Oleate formation were studied. The general kinetic scheme and reaction mechanism of Methyl linOleate hydrogenation and cis–trans Methyl Oleate isomerization have been proposed. # 2004 Elsevier B.V. All rights reserved.

  • Kinetic peculiarities of cis/trans Methyl Oleate formation during hydrogenation of Methyl linOleate over Pd/MgO
    Applied Catalysis A-general, 2004
    Co-Authors: I. V. Deliy, Nicoletta Ravasio, Rinaldo Psaro, Nataliya V. Maksimchuk, V. Dal Santo, Sandro Recchia, E. A. Paukshtis, A. V. Golovin, V. A. Semikolenov
    Abstract:

    Kinetic peculiarities of cis and trans Methyl Oleate formation in the course of Methyl linOleate hydrogenation over Pd/MgO were studied. Liquid phase hydrogenation was carried out in temperature range of 303–323 K and under hydrogen pressure within 1–10 bar. Gas–liquid chromatography, IR and 13 C NMR techniques were employed to characterize the reaction products. Effects of hydrogen pressure and reaction temperature on cis and trans Methyl Oleate formation were studied. The general kinetic scheme and reaction mechanism of Methyl linOleate hydrogenation and cis–trans Methyl Oleate isomerization have been proposed. # 2004 Elsevier B.V. All rights reserved.

I. V. Deliy - One of the best experts on this subject based on the ideXlab platform.

  • Catalytic behaviour of carbon supported platinum group metals in the hydrogenation and isomerization of Methyl Oleate
    Applied Catalysis A: General, 2009
    Co-Authors: I. V. Deliy, Irina L. Simakova, Nicoletta Ravasio, Rinaldo Psaro
    Abstract:

    Abstract Kinetic peculiarities of cis Methyl Oleate hydrogenation over Pd/C, Ru/C, Rh/C, Pt/C and Ir/C were studied. Liquid phase hydrogenation was carried out at temperature 298 ≤  T  ≤ 373 K and under hydrogen pressure within 1–10 bar using n -octane as a solvent. GLC and FTIR techniques were employed to characterize the reaction products. The effects of the catalyst amount, cis Methyl Oleate concentration, reaction temperature, and hydrogen pressure on the rates of Methyl Oleate hydrogenation and cis-trans isomerization were investigated. A simple reaction scheme involving cis Methyl Oleate hydrogenation and cis-trans isomerization was proposed for kinetic modeling. A good agreement was obtained between the calculated kinetic curves and the experimental data for the isomerization and hydrogenation of Methyl Oleate. It was shown that the second-row metals (Ru, Rh, Pd) display high activity in isomerization whereas the third-row metals (Ir, Pt) exhibit minor activity.

  • kinetic peculiarities of cis trans Methyl Oleate formation during hydrogenation of Methyl linOleate over pd mgo
    Applied Catalysis A-general, 2005
    Co-Authors: I. V. Deliy, Nicoletta Ravasio, Rinaldo Psaro, Nataliya V. Maksimchuk, Sandro Recchia, E. A. Paukshtis, A. V. Golovin, Dal V Santo, V. A. Semikolenov
    Abstract:

    Kinetic peculiarities of cis and trans Methyl Oleate formation in the course of Methyl linOleate hydrogenation over Pd/MgO were studied. Liquid phase hydrogenation was carried out in temperature range of 303–323 K and under hydrogen pressure within 1–10 bar. Gas–liquid chromatography, IR and 13 C NMR techniques were employed to characterize the reaction products. Effects of hydrogen pressure and reaction temperature on cis and trans Methyl Oleate formation were studied. The general kinetic scheme and reaction mechanism of Methyl linOleate hydrogenation and cis–trans Methyl Oleate isomerization have been proposed. # 2004 Elsevier B.V. All rights reserved.

  • Kinetic peculiarities of cis/trans Methyl Oleate formation during hydrogenation of Methyl linOleate over Pd/MgO
    Applied Catalysis A-general, 2004
    Co-Authors: I. V. Deliy, Nicoletta Ravasio, Rinaldo Psaro, Nataliya V. Maksimchuk, V. Dal Santo, Sandro Recchia, E. A. Paukshtis, A. V. Golovin, V. A. Semikolenov
    Abstract:

    Kinetic peculiarities of cis and trans Methyl Oleate formation in the course of Methyl linOleate hydrogenation over Pd/MgO were studied. Liquid phase hydrogenation was carried out in temperature range of 303–323 K and under hydrogen pressure within 1–10 bar. Gas–liquid chromatography, IR and 13 C NMR techniques were employed to characterize the reaction products. Effects of hydrogen pressure and reaction temperature on cis and trans Methyl Oleate formation were studied. The general kinetic scheme and reaction mechanism of Methyl linOleate hydrogenation and cis–trans Methyl Oleate isomerization have been proposed. # 2004 Elsevier B.V. All rights reserved.

Tao Fang - One of the best experts on this subject based on the ideXlab platform.

  • Phase equilibria for the ternary system Methyl Oleate + tocopherol + supercritical CO2
    Journal of Chemical & Engineering Data, 2005
    Co-Authors: Tao Fang, Mitsuru Sasaki, Motonobu Goto, Tsutomu Hirose
    Abstract:

    To study the feasibility of using supercritical CO2 to concentrate natural tocopherols from soybean oil deodorizer distillate (DOD), we measured the ternary phase equilibrium data for Methyl Oleate + α-tocopherol + supercritical CO2 from (313.15 to 353.15) K in the pressure range from (10 to 29) MPa. The measured data were well correlated using the Soave−Redlich−Kwong EOS with the Adachi−Sugie mixing rule. The separation factor between Methyl Oleate and tocopherol in CO2 was investigated. On the basis of these results, equilibrium lines in the experimental ranges were obtained that provide fundamental data for concentrating tocopherols with supercritical CO2. In addition, because the distribution of tocopherol in supercritical CO2 increases markedly because of the abundance of Methyl Oleate, Methyl Oleate was shown to act as a cosolvent for tocopherol. Finally, according to the obtained results, a strategy for a separation operation was suggested. Visual observation also provided information useful in fur...

  • Phase equilibria for binary systems of Methyl Oleate-supercritical CO2 and α-tocopherol-supercritical CO2
    The Journal of Supercritical Fluids, 2004
    Co-Authors: Tao Fang, Motonobu Goto, Zhi Yun, Xiaolin Ding, Tsutomu Hirose
    Abstract:

    Abstract In order to study the possibility of using supercritical CO 2 to concentrate tocopherols from soybean oil de-odorizer distillate (DOD), the binary phase equilibrium data for Methyl Oleate–CO 2 and α-tocopherol–CO 2 were measured at 313.15–353.15 K in the pressure ranges of 5–23 MPa for Methyl Oleate and 5–30 MPa for α-tocopherol, respectively. The measured data were well correlated using the Soave–Redlich–Kwong (SRK) equation of state (EOS) with the Adachi–Sugie (AS) mixing rule. The solubilities and distribution coefficients of Methyl Oleate and α-tocopherol in CO 2 were investigated. Finally, on the basis of these results, a conclusion was preliminarily drawn, supercritical CO 2 can be used to concentrate natural tocopherols from the esterified DOD in the experimental range investigated. In addition, the critical points of Methyl Oleate–CO 2 at three temperatures were estimated.

Rinaldo Psaro - One of the best experts on this subject based on the ideXlab platform.

  • Catalytic behaviour of carbon supported platinum group metals in the hydrogenation and isomerization of Methyl Oleate
    Applied Catalysis A: General, 2009
    Co-Authors: I. V. Deliy, Irina L. Simakova, Nicoletta Ravasio, Rinaldo Psaro
    Abstract:

    Abstract Kinetic peculiarities of cis Methyl Oleate hydrogenation over Pd/C, Ru/C, Rh/C, Pt/C and Ir/C were studied. Liquid phase hydrogenation was carried out at temperature 298 ≤  T  ≤ 373 K and under hydrogen pressure within 1–10 bar using n -octane as a solvent. GLC and FTIR techniques were employed to characterize the reaction products. The effects of the catalyst amount, cis Methyl Oleate concentration, reaction temperature, and hydrogen pressure on the rates of Methyl Oleate hydrogenation and cis-trans isomerization were investigated. A simple reaction scheme involving cis Methyl Oleate hydrogenation and cis-trans isomerization was proposed for kinetic modeling. A good agreement was obtained between the calculated kinetic curves and the experimental data for the isomerization and hydrogenation of Methyl Oleate. It was shown that the second-row metals (Ru, Rh, Pd) display high activity in isomerization whereas the third-row metals (Ir, Pt) exhibit minor activity.

  • kinetic peculiarities of cis trans Methyl Oleate formation during hydrogenation of Methyl linOleate over pd mgo
    Applied Catalysis A-general, 2005
    Co-Authors: I. V. Deliy, Nicoletta Ravasio, Rinaldo Psaro, Nataliya V. Maksimchuk, Sandro Recchia, E. A. Paukshtis, A. V. Golovin, Dal V Santo, V. A. Semikolenov
    Abstract:

    Kinetic peculiarities of cis and trans Methyl Oleate formation in the course of Methyl linOleate hydrogenation over Pd/MgO were studied. Liquid phase hydrogenation was carried out in temperature range of 303–323 K and under hydrogen pressure within 1–10 bar. Gas–liquid chromatography, IR and 13 C NMR techniques were employed to characterize the reaction products. Effects of hydrogen pressure and reaction temperature on cis and trans Methyl Oleate formation were studied. The general kinetic scheme and reaction mechanism of Methyl linOleate hydrogenation and cis–trans Methyl Oleate isomerization have been proposed. # 2004 Elsevier B.V. All rights reserved.

  • Kinetic peculiarities of cis/trans Methyl Oleate formation during hydrogenation of Methyl linOleate over Pd/MgO
    Applied Catalysis A-general, 2004
    Co-Authors: I. V. Deliy, Nicoletta Ravasio, Rinaldo Psaro, Nataliya V. Maksimchuk, V. Dal Santo, Sandro Recchia, E. A. Paukshtis, A. V. Golovin, V. A. Semikolenov
    Abstract:

    Kinetic peculiarities of cis and trans Methyl Oleate formation in the course of Methyl linOleate hydrogenation over Pd/MgO were studied. Liquid phase hydrogenation was carried out in temperature range of 303–323 K and under hydrogen pressure within 1–10 bar. Gas–liquid chromatography, IR and 13 C NMR techniques were employed to characterize the reaction products. Effects of hydrogen pressure and reaction temperature on cis and trans Methyl Oleate formation were studied. The general kinetic scheme and reaction mechanism of Methyl linOleate hydrogenation and cis–trans Methyl Oleate isomerization have been proposed. # 2004 Elsevier B.V. All rights reserved.