Transesterification of Camelina sativa Oil Catalyzed by Mg/Al Mixed Oxides with Added Divalent Metals
ČlánekOtevřený přístuppeer-reviewedpublished versionSoubory
Datum publikování
2020
Autoři
Malisova, Miroslava
Hornavek, Michal
Mikulec, Jozef
Hudec, Pavol
Hájek, Martin
Peller, Andras
Jorik, Vladimir
Frolich, Karel
Hadvinova, Marcela
Hajekova, Elena
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American Chemical Society
Abstrakt
This paper is focused on the heterogeneously catalyzed transesterification (in a batch reactor) of vegetable oil, including the determination of leached metals. The oil was obtained from the short-season crop Camelina sativa. The reaction was catalyzed by mixed oxides, which were synthesized from Mg/Al hydrotalcites with built-in different types of divalent cations such as Mn, Ca, Co, Ni, and Fe. The various physicochemical properties like the structure by X-ray diffraction, acidity, basicity, and textural properties were measured and the effect of the added cation type on catalyst properties and activity was compared. A noticeable relationship between the cation type and catalytic activity in the transesterification reaction was observed. The highest ester content of 96.6 wt % after 7 h of transesterification was observed for catalysts with nickel and iron. The statistical analysis of results showed that the catalyst activity was mainly influenced by middle-temperature basic sites. The novelty lies in transesterification over five different heterogeneous catalysts-mixed oxides with added divalent metals at the same reaction conditions of C. sativa oil.
Rozsah stran
p. 32040-32050
ISSN
2470-1343
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ACS Omega, volume 5, issue: 49
Vydavatelská verze
https://pubs.acs.org/doi/10.1021/acsomega.0c04976
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open access (CC BY-NC-ND 4.0)
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mg-al hydrotalcites, biodiesel production, soybean oil, performance, Mg-Al hydrotalcity, produkce bionafty, rostlinný olej, zpracování
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Except where otherwised noted, this item's license is described as open access (CC BY-NC-ND 4.0)