Original scientific paper

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

Abstract

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.

Keywords

transesterification; triglycerides; metal oxides; ethanol

Hrčak ID:

240254

URI

https://hrcak.srce.hr/240254

Publication date:

1.7.2020.

Article data in other languages: croatian

Visits: 1.371 *