Synthesis of solketal from waste cooking oil using Graphene oxide (GO) and sulfuric acid (H2SO4).

Autor: Sahroni, Imam, Ramanda, Galih Dwiki, Musawwa, Muhammad Miqdam, Ramadani, Randy, Fadillah, Ganjar, Fatimah, Is
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Zdroj: AIP Conference Proceedings; 2023, Vol. 2720 Issue 1, p1-6, 6p
Abstrakt: Solketal is a bio additive compound commonly produced by acetalization reaction of glycerol and acetone using heterogeneous catalyst. Glycerol can be produced through the transesterification process of used cooking oil which produces biodiesel and glycerol. The result of the transesterification process will produce crude glycerol which needs to be purified to gain glycerol with higher concentration. Glycerol was purified using phosphoric acid followed by the addition of activated carbon to remove residual impurities and color. The catalytic reaction can convert glycerol into bio-additives with acetone using Graphene Oxide (GO) as a catalyst. The results of the XRD instrument characterization showed peak position in 10.89° corresponding to the (001) reflection and has 31.11 nm crystal size. Solketal synthesis was carried out with a ratio of glycerol and acetone 1:3, the weight of the catalyst 0.25 g, temperature reaction of 50°C, and 5 hours for time reaction. Solketal characterization results were obtained using FTIR and 1H-NMR which indicated the presence of a hydroxyl group (OH), methyl group (CH3), C-O ether, C-H aromatics and confirmed that the compound formed from the characterization was a solketal compound. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index