Cavalcanti, Lívia NunesBarros, Rauan Douglas da Cunha2024-08-052024-08-052024-07-08BARROS, Rauan Douglas da Cunha. PRODUÇÃO DE HIDROCARBONETOS RENOVÁVEIS VIA DESCARBOXILAÇÃO DIRETA DE ÁCIDOS GRAXOS. 2024. 44f. Trabalho de Conclusão de Curso (Graduação em Química Bacharelado), Instituto de Química, Universidade Federal do Rio Grande do Norte, Natal, 2024.https://repositorio.ufrn.br/handle/123456789/58967This paper discusses the search for an alternative energy source and the importance of biofuels in reducing greenhouse gases (GHGs). The creation of RenovaBio in Brazil in 2016 is highlighted as part of a global effort to reduce emissions. The use of liquid biomass, such as babassu oil, which contains lauric acid as the major component, has potential for clean energy production. Despite the disadvantages associated with oxygenated compounds present in vegetable oils that can affect engine performance, drop-in biofuels, obtained through deoxygenation processes, emerge as a solution. Methods such as hydrotreating and catalytic hydrothermolysis are effective but require high temperatures and pressures, as well as fossil-derived hydrogen. Therefore, recent studies propose innovative methodologies for the direct decarboxylation of carboxylic acids, aiming at the production of renewable hydrocarbons under milder conditions. In this context, an adapted methodology from Euan and colleagues (2022), which uses ammonium persulfate and 2,4,6-collidine to perform decarboxylation without metal catalysts and light, can yield hydrocarbons in the carbon range of aviation bio-kerosene (BioQAv) with moderate yields. The characterization and monitoring of the obtained products were carried out using gas chromatography-mass spectrometry (GC-MS) and gas chromatography with a flame ionization detector (GC-FID) calibrated for linear hydrocarbons. Thus, optimizing these processes is crucial for the efficiency and viability of biofuels, contributing to sustainable energy transition. After optimizing the direct decarboxylation process of lauric acid, the desired product undecane (C11H24 ) was obtained with a yield of 14%. The moderate yield can be attributed to the formation of by-products during the reaction. Future perspectives include additional optimizations to improve the production of the target product and its by-products, ensuring greater efficiency and viability in the application of drop-in biofuels. Once refined, this methodology will be applied to the decarboxylation of babassu oil, through a hydrolysis process, to obtain fatty acids, as well as in residual frying oils.Attribution-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nd/3.0/br/Ácidos graxosQuímicaDescarboxilaçãoHidrocarbonetosBiocombustíveisDrop-inbachelorThesisCNPQ::CIENCIAS EXATAS E DA TERRA