Naslov
The Application of Waste Eggshell Derived Calcium Oxide in Biodiesel Synthesis

Autori
Gotovuša, Mia ; Huzjak, Paula ; Zadravec, Ivana ; Zadravec, Martina ; Parlov-Vuković, Jelena ; 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 - Zagreb : Prirodoslovno-matematički fakultet Sveučilišta u Zagrebu, 2023, 109-109

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
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
biodiesel ; transesterification ; waste eggshells ; calcium oxide

Sažetak
Poultry egg consumption is quite frequent worldwide which consequently causes large amounts of eggshell waste, approximately 8.58 million tons per year. Due to high disposal costs, recycling of the waste eggshells into an enviromentally- friendly catalyst is a potential solution. Eggshell consists mostly of calcium carbonate (CaCO3), which is transformed into calcium oxide (CaO) through the calcination process and used as a heterogeneous catalyst. Such catalyst is suitable for the industrial production of biodiesel because of its easy separation from the reaction mixture and reusability, reducing the process costs. Biodiesel itself is a renewable energy source and is considered an alternative fuel to commercial diesel. It is primarily obtained via transesterification reaction, from vegetable oils or fats and an alcohol, in the presence of a catalyst. The use of a heterogeneous catalyst originating from waste eggshells, as well as waste cooking oil as feedstock, further contributes to the renewability of the entire biodiesel synthesis process and the recovery of waste materials [3]. This study compares the influence of CaO obtained by calcination at 900 °C from eggshell and commercial CaO on the conversion of waste cooking oil into fatty acid methyl esters (biodiesel). The reaction was carried out for 2 hours at 65 °C with 5 % catalyst by mass of oil. NMR analysis showed yields of 100 % for both catalysts.

Izvorni jezik
Engleski

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

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