Hydrogen solubility in triolein, and propane solubility in oleic acid for second generation BDF synthesis by use of hydrodeoxygenation reaction

Tsuji, T.; Ohya, Koh Hei; Hoshina, Taka Aki; Hiaki, Toshihiko; Maeda, Koji; Kuramochi, Hidetoshi; Osako, Masahiro

doi:10.1016/j.fluid.2013.11.006

Cited by 18 publications

(7 citation statements)

References 6 publications

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“…As the solubility of H 2 in biodiesel was very low, H 2 uptake by the biodiesel in the reaction chamber was negligible. As presented in the study of Tomoya et al 42 , H 2 can be fairly dissolved in bio-oil. For example, H 2 was dissolved in triolein (triglycerides with one unit of glycerol and three units of oleic acid) at a mole fraction of 0.1323 at about 80 °C and 7.5 MPa.…”

Section: Resultsmentioning

confidence: 87%

Low-temperature and atmospheric pressure plasma for palm biodiesel hydrogenation

Kongprawes

Wongsawaeng

Ngaosuwan

et al. 2021

Sci Rep

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Partially hydrogenated fatty acid methyl ester (H-FAME) is conventionally produced through partial hydrogenation under high pressure and elevated temperature in the presence of a catalyst. Herein, a novel green, catalyst-free, non-thermal and atmospheric pressure dielectric barrier discharge (DBD) plasma was employed instead of a conventional method to hydrogenate palm FAME. H-FAME became more saturated with the conversion of C18:2 and C18:3 of 47.4 and 100%, respectively, at 100 W input power, 1 mm gas-filled gap size and 80% H2 in the mixed gas at room temperature for 5 h, causing a reduction of the iodine value from 50.2 to 43.5. Oxidation stability increased from 12.8 to 20 h while a cloud point changed from 13.5 to 16 °C. Interestingly, DBD plasma hydrogenation resulted in no trans-fatty acid formation which provided a positive effect on the cloud point. This green DBD plasma system showed a superior performance to a conventional catalytic reaction. It is an alternative method that is safe from explosion due to the mild operating condition, as well as being highly environmentally friendly by reducing waste and energy utilization from the regeneration process required for a catalytic process. This novel green plasma hydrogenation technique could also be applied to other liquid-based processes.

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Section: Resultsmentioning

confidence: 87%

Low-temperature and atmospheric pressure plasma for palm biodiesel hydrogenation

Kongprawes

Wongsawaeng

Ngaosuwan

et al. 2021

Sci Rep

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“…In this work, data for n -propane + n -decane binary systems, along with previously published data on n -butane + n -octane and n -butane + n -nonane binary systems, are utilized to fit mixture parameters. Very few data sets of these mixtures exist in the literature − and comparisons to the GERG-2008 equation showed considerable deviations, prompting the need for additional measurements and improved mixture modeling.…”

Section: Introductionmentioning

confidence: 99%

Bubble-Point Measurements of n-Propane + n-Decane Binary Mixtures with Comparisons of Binary Mixture Interaction Parameters for Linear Alkanes

2016

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To develop comprehensive models for multicomponent natural gas mixtures, it is necessary to have binary interaction parameters for each of the pairs of constituent fluids that form the mixture. The determination of accurate mixture interaction parameters depends on reliably collected experimental data. In this work, we have carried out an experimental campaign to measure the bubble-point pressures of mixtures of n-propane and n-decane, a mixture that has been thus far poorly studied with only four existing data sets. The experimental measurements of bubble-point states span a composition range (in n-propane mole fraction) from 0.269 to 0.852, and the bubble-point pressures are measured in the temperature range from 270 K to 370 K. These data, in conjunction with data from a previous publication on mixtures of n-butane + n-octane and n-butane + n-nonane, are used to determine binary interaction parameters. The newly-obtained binary interaction parameters for the mixture of n-propane and n-decane represent the experimental bubble-point pressures given here to within 8% (coverage factor, k=2), as opposed to previous deviations up to 19%.

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“…As the solubility of H 2 in biodiesel was very low, H 2 uptake by the biodiesel in the reaction chamber was negligible. As presented in the study of Tomoya et al 38 , H 2 can be fairly dissolved in bio-oil. For example, H 2 was dissolved in triolein (triglycerides with one unit of glycerol and three units of oleic acid) at a mole fraction of 0.1323 at about 80°C and 7.5 MPa.…”

Section: Effect Of H 2 Concentrationmentioning

confidence: 87%

Low-Temperature and Atmospheric Pressure Plasma for Palm Biodiesel Hydrogenation

Kongprawes

Wongsawaeng

Ngaosuwan

et al. 2021

Preprint

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Partially hydrogenated fatty acid methyl ester (H-FAME) is conventionally produced through partial hydrogenation under high pressure and elevated temperature in the presence of a catalyst. Herein, a novel green, catalyst-free, non-thermal and atmospheric pressure dielectric barrier discharge (DBD) plasma was employed instead of a conventional method to hydrogenate palm FAME. H-FAME became more saturated with the conversion of C18:2 and C18:3 of 47.1 and 100%, respectively, at 100 W input power, 1 mm gas-filled gap size and 80% H2 in the mixed gas at room temperature for 5 h, causing a reduction of the iodine value from 50.2 to 43.5. Oxidation stability increased from 12.8 to 20 h while a cloud point changed from 13.5 to 16°C. Interstingly, DBD plasma hydrogenation resulted in no trans-fatty acid formation which provided a positive effect on the cloud point. This green DBD plasma system showed a superior performance to a conventional catalytic reaction. It is an alternative method that is safe from explosion due to the mild operating condition, as well as being highly environmentally-friendly by reducing waste and energy utilization from the regeneration process required for a catalytic process. This novel green plasma hydrogenation technique could also be applied to other liquid-based processes.

show abstract

Hydrogen solubility in triolein, and propane solubility in oleic acid for second generation BDF synthesis by use of hydrodeoxygenation reaction

Cited by 18 publications

References 6 publications

Low-temperature and atmospheric pressure plasma for palm biodiesel hydrogenation

Low-temperature and atmospheric pressure plasma for palm biodiesel hydrogenation

Bubble-Point Measurements of n-Propane + n-Decane Binary Mixtures with Comparisons of Binary Mixture Interaction Parameters for Linear Alkanes

Low-Temperature and Atmospheric Pressure Plasma for Palm Biodiesel Hydrogenation

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