Improved catalyst performance of Ni/SiO2 in vegetable oil hydrogenation: Impact of Mg dopant
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2018
Authors
Gabrovska, MargaritaNikolova, Dimitrinka
Krstić, Jugoslav
Lončarević, Davor
Tzvetkov, P.T.
Shopska, M.G.
Radonjić, Vojkan
Stanković, Miroslav
Jovanović, D.M.
Spasov, L.Т.
Simeonov, D.B.
Article (Published version)
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Mg-doped co-precipitated Ni/SIG precursors were studied as edible sunflower oil hydrogenation catalysts applying two types of commercial silica gels (SIG) as supports of different texture characteristics: a microporous type (SIG-A) and a mesoporous type (SIG-C). It was found that texture parameters of both the silica gels and magnesium addition allow obtaining of catalysts of various hydrogenation activities and fatty acid composition of the products. The results reveal the highest hydrogenation activity of MgNi/SIG-C catalyst because of higher amount and accessibility of metal nickel particles on the catalyst surface generated through reduction procedure. A dominant activity of MgNi/SIG-C catalyst is ascribed to appropriate mesoporosity, which controls diffusion. It was established that Mg-doped Ni/SIG-C possessed a capacity for use as an efficient edible vegetable oil hydrogenation catalyst due to high hydrogenation activity, high saturation level of linoleic acid (C18:2cis), moderat...e amounts of C18:1trans fatty acids, and C18:0 stearin acid formation in the partially hydrogenated sunflower oil.
Keywords:
Hydrogenation / Mg additive / Ni catalyst / Silica gel / Sunflower oil / Trans-isomersSource:
Bulgarian Chemical Communications, 2018, 50, 161-168Publisher:
- Bulgarian Academy of Sciences
Funding / projects:
- Nanostructured Functional and Composite Materials in Catalytic and Sorption Processes (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45001)
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IHTMTY - JOUR AU - Gabrovska, Margarita AU - Nikolova, Dimitrinka AU - Krstić, Jugoslav AU - Lončarević, Davor AU - Tzvetkov, P.T. AU - Shopska, M.G. AU - Radonjić, Vojkan AU - Stanković, Miroslav AU - Jovanović, D.M. AU - Spasov, L.Т. AU - Simeonov, D.B. PY - 2018 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/2390 AB - Mg-doped co-precipitated Ni/SIG precursors were studied as edible sunflower oil hydrogenation catalysts applying two types of commercial silica gels (SIG) as supports of different texture characteristics: a microporous type (SIG-A) and a mesoporous type (SIG-C). It was found that texture parameters of both the silica gels and magnesium addition allow obtaining of catalysts of various hydrogenation activities and fatty acid composition of the products. The results reveal the highest hydrogenation activity of MgNi/SIG-C catalyst because of higher amount and accessibility of metal nickel particles on the catalyst surface generated through reduction procedure. A dominant activity of MgNi/SIG-C catalyst is ascribed to appropriate mesoporosity, which controls diffusion. It was established that Mg-doped Ni/SIG-C possessed a capacity for use as an efficient edible vegetable oil hydrogenation catalyst due to high hydrogenation activity, high saturation level of linoleic acid (C18:2cis), moderate amounts of C18:1trans fatty acids, and C18:0 stearin acid formation in the partially hydrogenated sunflower oil. PB - Bulgarian Academy of Sciences T2 - Bulgarian Chemical Communications T1 - Improved catalyst performance of Ni/SiO2 in vegetable oil hydrogenation: Impact of Mg dopant VL - 50 SP - 161 EP - 168 UR - https://hdl.handle.net/21.15107/rcub_cer_2390 ER -
@article{ author = "Gabrovska, Margarita and Nikolova, Dimitrinka and Krstić, Jugoslav and Lončarević, Davor and Tzvetkov, P.T. and Shopska, M.G. and Radonjić, Vojkan and Stanković, Miroslav and Jovanović, D.M. and Spasov, L.Т. and Simeonov, D.B.", year = "2018", abstract = "Mg-doped co-precipitated Ni/SIG precursors were studied as edible sunflower oil hydrogenation catalysts applying two types of commercial silica gels (SIG) as supports of different texture characteristics: a microporous type (SIG-A) and a mesoporous type (SIG-C). It was found that texture parameters of both the silica gels and magnesium addition allow obtaining of catalysts of various hydrogenation activities and fatty acid composition of the products. The results reveal the highest hydrogenation activity of MgNi/SIG-C catalyst because of higher amount and accessibility of metal nickel particles on the catalyst surface generated through reduction procedure. A dominant activity of MgNi/SIG-C catalyst is ascribed to appropriate mesoporosity, which controls diffusion. It was established that Mg-doped Ni/SIG-C possessed a capacity for use as an efficient edible vegetable oil hydrogenation catalyst due to high hydrogenation activity, high saturation level of linoleic acid (C18:2cis), moderate amounts of C18:1trans fatty acids, and C18:0 stearin acid formation in the partially hydrogenated sunflower oil.", publisher = "Bulgarian Academy of Sciences", journal = "Bulgarian Chemical Communications", title = "Improved catalyst performance of Ni/SiO2 in vegetable oil hydrogenation: Impact of Mg dopant", volume = "50", pages = "161-168", url = "https://hdl.handle.net/21.15107/rcub_cer_2390" }
Gabrovska, M., Nikolova, D., Krstić, J., Lončarević, D., Tzvetkov, P.T., Shopska, M.G., Radonjić, V., Stanković, M., Jovanović, D.M., Spasov, L.Т.,& Simeonov, D.B.. (2018). Improved catalyst performance of Ni/SiO2 in vegetable oil hydrogenation: Impact of Mg dopant. in Bulgarian Chemical Communications Bulgarian Academy of Sciences., 50, 161-168. https://hdl.handle.net/21.15107/rcub_cer_2390
Gabrovska M, Nikolova D, Krstić J, Lončarević D, Tzvetkov P, Shopska M, Radonjić V, Stanković M, Jovanović D, Spasov L, Simeonov D. Improved catalyst performance of Ni/SiO2 in vegetable oil hydrogenation: Impact of Mg dopant. in Bulgarian Chemical Communications. 2018;50:161-168. https://hdl.handle.net/21.15107/rcub_cer_2390 .
Gabrovska, Margarita, Nikolova, Dimitrinka, Krstić, Jugoslav, Lončarević, Davor, Tzvetkov, P.T., Shopska, M.G., Radonjić, Vojkan, Stanković, Miroslav, Jovanović, D.M., Spasov, L.Т., Simeonov, D.B., "Improved catalyst performance of Ni/SiO2 in vegetable oil hydrogenation: Impact of Mg dopant" in Bulgarian Chemical Communications, 50 (2018):161-168, https://hdl.handle.net/21.15107/rcub_cer_2390 .