Influence of silica sources on structural property and activity of Pd-supported on mesoporous MCM-41 synthesized with an aid of microwave heating for partial hydrogenation of soybean methyl esters

Rungsi, Artita Na; Luengnaruemitchai, Apanee; Wongkasemjit, Sujitra; Chollacoop, Nuwong; Chen, Shih‐Yuan; Yoshimura, Y.

doi:10.1016/j.apcata.2018.06.028

Cited by 21 publications

(20 citation statements)

References 48 publications

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“…In the case of using Pd/C, trans ‐C18:1 was produced with a ratio of 2 (16% trans ‐). In addition, in the study of Na Rungsi et al, 24 H‐soybean FAME was produced using Pd/MCM‐41‐SiO 2 catalyst. When considering the trans ‐to‐ cis ratio at about 50% conversion of C18:2, the study obtained the ratio of 0.22.…”

Section: Resultsmentioning

confidence: 99%

“…Despite lubricity improvement by the trans isomer, 22 which can be generated during the reaction with elevated temperature, it can result in poor cloud point because its melting point is higher than that of the cis counterpart. Moreover, the conventional catalyst‐based FAME hydrogenation requires catalyst preparation and catalyst removal at the end of the reaction 23‐25 …”

Section: Introductionmentioning

confidence: 99%

“…Na. Rungsi et al 24 used Pd/MCM‐41‐SiO 2 and Pd/MCM‐41‐silatrane catalysts. Even though the highest TOF was obtained from the Pd/MCM‐41‐silatrane catalyst, it exhibited a low cis ‐selectivity of C18:1.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the conventional catalyst-based FAME hydrogenation requires catalyst preparation and catalyst removal at the end of the reaction. [23][24][25] When focusing on partial hydrogenation of FAME made from feedstocks of high polyunsaturated fatty acids composition, Numwong et al 26 evaluated the effect of pore size diameter of SiO 2 in a Pd/SiO 2 catalyst for the production of H-FAME derived from rapeseed oil. The reaction was operated at 80 C and 0.3 MPa for 3 hours.…”

Section: Introductionmentioning

confidence: 99%

“…It was found that the Zr loadingratio of 0.07 provided the high oxidation stability of 53 hours with the pour point of 3 C. Na. Rungsi et al 24 used Pd/MCM-41-SiO 2 and Pd/MCM-41-silatrane catalysts. Even though the highest TOF was obtained from the Pd/MCM-41-silatrane catalyst, it exhibited a low cis-selectivity of C18:1.…”

Section: Introductionmentioning

confidence: 99%

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Improvement of oxidation stability of fatty acid methyl esters derived from soybean oil via partial hydrogenation using dielectric barrier discharge plasma

et al. 2020

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Summary Oxidation stability is an important biodiesel property. One of the methods to improve oxidation stability is partially hydrogenated fatty acid methyl esters (H‐FAME). The present research studied the novel production technique of H‐FAME derived from soybean FAME using non‐thermal parallel‐plate dielectric barrier discharge (DBD) plasma. This green hydrogenation method does not require a catalyst and can be performed under atmospheric pressure and at room temperature. The reaction using DBD plasma could effectively initiate the hydrogenation reaction, and the results showed similar performance to catalysis technique. The optimized process parameters for 35 mL of FAME were 25% H2, 5.5 hours of reaction time, and ambient temperature. This condition exhibited the highest conversion of polyunsaturated FAMEs (C18:2 and C18:3) and the highest yield of C18:1. DBD plasma hydrogenation resulted in the reduction of iodine value from 128 to 67.4. The oxidation stability was enhanced from 2.13 to 10 hours while the cloud point increased from −1°C to 11°C (still within the ASTM D6751 standard). This plasma process is a new alternative and eco‐friendly method for H‐FAME production.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Improvement of oxidation stability of fatty acid methyl esters derived from soybean oil via partial hydrogenation using dielectric barrier discharge plasma

et al. 2020

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Upgrading palm biodiesel properties via catalyst‐free partial hydrogenation using needle‐plate dielectric barrier discharge plasma torch

Kamjam

Wongsawaeng

Ngaosuwan

et al. 2022

Intl J of Energy Research

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A catalyst-free and ambient condition dielectric barrier discharge (DBD) plasma torch has been used to efficaciously synthesize partially hydrogenated fatty acid methyl ester (H-FAME) obtained from refined palm oil. The electrode configuration was a needle-to-plate type. The effects of power, H 2 flow rate, discharge gap, process temperature and reaction duration on H-FAME compositions and properties were examined. For 1 hour of reaction time, the optimal condition was 100 W input power, 1.0 L/min H 2 flow rate, 1.0 cm discharge gap and 90 C reaction temperature. Under this condition, the H-FAME contained saturated FAMEs of 56.8% and unsaturated FAMEs of 43.1%, compared to saturated FAMEs of 48.8% and unsaturated FAMEs of 51.0% in the feed FAME. After 1 hour of treatment, the oxidation stability increased by 10.7 hours (from 12.8 to 23.5 hours), while the cloud point increased from 13.5 to 16.0 C. A reduction rate of iodine value was 13.4%/h (reduction from 50.6 to 43.8). The trans-fatty acid formation was not detected in the palm H-FAME.Partial hydrogenation through the DBD plasma torch without using artificial antioxidants or metal catalysts is an environment-friendly and potentially alternative approach, which can substitute conventional catalytic hydrogenation of FAME for enhancing the oxidation stability of biodiesel.

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Catalytic Pyrolysis Vapor Upgrading of Corncob into Furans over Pyrolysis-Comprehensive Two-Dimensional Gas Chromatography/Mass Spectrometry: Significance of Catalyst and Temperature

Lü

Zhu

et al. 2020

Bioenerg. Res.

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Influence of silica sources on structural property and activity of Pd-supported on mesoporous MCM-41 synthesized with an aid of microwave heating for partial hydrogenation of soybean methyl esters

Cited by 21 publications

References 48 publications

Improvement of oxidation stability of fatty acid methyl esters derived from soybean oil via partial hydrogenation using dielectric barrier discharge plasma

Improvement of oxidation stability of fatty acid methyl esters derived from soybean oil via partial hydrogenation using dielectric barrier discharge plasma

Upgrading palm biodiesel properties via catalyst‐free partial hydrogenation using needle‐plate dielectric barrier discharge plasma torch

Catalytic Pyrolysis Vapor Upgrading of Corncob into Furans over Pyrolysis-Comprehensive Two-Dimensional Gas Chromatography/Mass Spectrometry: Significance of Catalyst and Temperature

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