Setembro 2025 vol. 12 num. 1 - XXXII Simpósio Internacional de Engenharia

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Rumo à Mobilidade de Baixo Carbono: O Impacto de Misturas de Combustíveis Renováveis em Veículos de Passageiros

Towards Low-Carbon Mobility: The Impact of Renewable Fuel Blends on Passenger Vehicles

MARTINS, Mario Eduardo Santos ; LANZANOVA, THOMPSON DIÓRDINIS METZKA ; FAGUNDEZ, Jean Lucca Souza ; GUILHERME, Roger Tadeu Gondim ; ROVAI, Fernando Fusco ; GOMES, Luísa Clemente Magalhães ; HAUSEN, Roberto Begnis ;

Trabalho completo:

Este estudo avalia o potencial de uma mistura composta por 7% de gasolina sintética e 93% de etanol anidro em volume para a descarbonização do setor de transporte de passageiros no Brasil. Três cenários de produção de eGas utilizando o processo Ethanol-to-Gasoline (ETG) foram analisados com base em diferentes matérias-primas: etanol de milho de 1ª geração, etanol de cana-de-açúcar de 1ª geração e etanol de bagaço de cana-de-açúcar de 2ª geração. A análise abrangeu a síntese do etanol, uso de eletricidade, energia térmica do biometano e produção de hidrogênio via eletrólise. Os resultados mostram que o eGas oriundo do etanol 2G apresenta a menor CI (6,65 gCO?eq/MJ), seguido pelo etanol de cana 1G (22,97) e milho 1G (25,05). Comparada aos combustíveis fósseis, a mistura E93eG7 apresenta maior densidade energética e autonomia veicular em relação ao etanol hidratado, com redução de até 78% nas emissões de GEE quando se utiliza 93% de etanol de cana 1G e 7% de eGas proveniente de etanol 2G. O estudo destaca o papel dos biocombustíveis avançados e sintéticos na transição do Brasil para uma mobilidade de baixo carbono.

Trabalho completo:

This study evaluates the potential of a fuel blend composed of 7% synthetic gasoline (eGas) and 93% anhydrous ethanol (E100) by volume?called E93eG7?for decarbonizing Brazil?s passenger vehicle sector. Three eGas production scenarios using the Ethanol-to-Gasoline (ETG) process were assessed based on ethanol feedstocks: 1G corn ethanol, 1G sugarcane ethanol, and 2G sugarcane bagasse ethanol. Carbon intensity (CI) was calculated considering Brazilian energy inputs, including the national electricity mix and biomethane from sugarcane residues. The analysis covered ethanol synthesis, electricity use, thermal energy from biomethane, and hydrogen production via electrolysis. Results show that eGas from 2G ethanol yields the lowest CI (6.65 gCO?eq/MJ), followed by 1G sugarcane (22.97) and 1G corn (25.05). Compared to fossil fuels, E93eG7 shows improved energy density and vehicle range over hydrous ethanol, with up to 78% lower GHG emissions when using 93% 1G sugarcane ethanol and 7% eGas from 2G feedstock. This highlights the role of advanced biofuels and synthetic fuels in Brazil?s low-carbon mobility transition.

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DOI: 10.5151/simea2025-PAP60

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Como citar:

MARTINS, Mario Eduardo Santos; LANZANOVA, THOMPSON DIÓRDINIS METZKA; FAGUNDEZ, Jean Lucca Souza; GUILHERME, Roger Tadeu Gondim; ROVAI, Fernando Fusco; GOMES, Luísa Clemente Magalhães; HAUSEN, Roberto Begnis; "Rumo à Mobilidade de Baixo Carbono: O Impacto de Misturas de Combustíveis Renováveis em Veículos de Passageiros", p. 297-303 . In: Anais do XXXII Simpósio Internacional de Engenharia. São Paulo: Blucher, 2025.
ISSN 2357-7592, DOI 10.5151/simea2025-PAP60

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