Izvorni znanstveni članak
https://doi.org/10.15255/KUI.2019.059
Technological Aspects of Vegetable Oils Transesterification with Ethanol in the Presence of Metal Oxides
Yuriy Melnyk
orcid.org/0000-0003-0109-5526
; Department of Organic Products Technology, Lviv Polytechnic National University, S. Bandery str., 12, Lviv, Ukraine, 79013
Roman Starchevskyi
; Department of Organic Products Technology, Lviv Polytechnic National University, S. Bandery str., 12, Lviv, Ukraine, 79013
Stepan Melnyk
orcid.org/0000-0002-0629-9723
; Department of Organic Products Technology, Lviv Polytechnic National University, S. Bandery str., 12, Lviv, Ukraine, 79013
Sažetak
Transesterification of vegetable oil with ethanol in the presence of fine metal oxide particles as catalysts has been investigated. Zinc and nickel(II) oxides were shown to have the highest catalytic activity. In their presence, the conversion of sunflower oil triglycerides, after 150 min, reached 95.3 and 94.2 %, respectively. The optimal mass fraction of zinc oxide catalyst was found to be 0.25–0.31 %. In the presence of zinc oxide, with mass fraction of water in ethanol of 5 and 10 %, the conversion of triglycerides was 98.5 and 94.8 %, respectively.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Ključne riječi
transesterification; triglycerides; metal oxides; ethanol
Hrčak ID:
240254
URI
Datum izdavanja:
1.7.2020.
Posjeta: 855 *