Naslov
Synthesis and Application Properties of Fatty Acid Hexyl Esters and Their Blends with Mineral Diesel

Autori
Gotovuša, Mia ; Knežević, Andrea ; Faraguna, Fabio

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
7th Faculty of Science PhD Student Symposium Book of Abstracts / Pavlek, Katarina ; Vuković, Mladen ; Bertoša, Branimir ; Korać, Petra ; Lukić, Aleksandar ; Marušić-Paloka, Eduard ; Pezelj, Đurđica ; Pikelj, Kristina ; Smolčić, Vernesa ; Pavlek, Katarina - Zagreb : Prirodoslovno-matematički fakultet Sveučilišta u Zagrebu, 2023, 45-45

ISBN
978-953-6076-01-7

Skup
7th Faculty of Science PhD Student Symposium

Mjesto i datum
Zagreb, Hrvatska, 21.04.2023. - 22.04.2023

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
biodiesel ; transesterification ; 1-hexanol

Sažetak
Biodiesel is a renewable fuel that consists of fatty acid monoalkyl esters, obtained via transesterification of vegetable oils or animal fats with an alcohol (usually methanol or ethanol), in a presence of a homogeneous or heterogeneous alkaline or acidic catalyst. Molecular weight of the alkyl moiety in the ester structure can have an influence on biodiesel’s application properties. The increase in the alcohol chain length leads to an increase in e.g. biodiesel’s density, viscosity and cetane number. Density and viscosity are important in regards to the atomization of the fuel in diesel engine, whereas higher cetane number lowers ignition delay and leads to better combustion. Fatty acid hexyl esters (FAHE) were synthesized at 60 °C, after an hour, from 1-hexanol and waste cooking oil (molar ratio of 12:1), in the presence of 1 wt% of potassium hydroxide catalyst. After purification, they were blended into binary (up to 20 vol%) and trinary blends (up to 15 vol%) with mineral diesel and/or 1-hexanol. Density, viscosity and low- temperature properties (cloud point, CP, and pour point, PP) were measured according to the standardized tests. Results showed that the addition of FAHE into the blends results in the increase in blends’ densities and viscosities, while the influence on CP and PP is minor to none.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Interdisciplinarne prirodne znanosti, Kemijsko inženjerstvo, Temeljne tehničke znanosti, Interdisciplinarne tehničke znanosti

POVEZANOST RADA