2021-04-262021-04-262020-09-21FERREIRA, Márcia de Fátima Pantoja. Estudos dos constituintes dos produtos de pirólise visando a produção de biocombustíveis e químicos. Orientadores: Nielson Fernando da Paixão Ribeiro; Luiz Ferreira de França. 2020. 95 f. Tese (Doutorado em Engenharia de Recursos Naturais da Amazônia) - Instituto de Tecnologia, Universidade Federal do Pará, Belém, 2020. Disponível em: http://repositorio.ufpa.br/jspui/handle/2011/13189. Acesso em:.https://repositorio.ufpa.br/handle/2011/13189This work aims to use slow pyrolysis in biomass residues (EFB) as an energy potential in the production of biofuels. The raw material was obtained from agribusiness and subjected to washing, drying and crushing. The experiments were carried out in a fixed bed reactor and the central rotational composite design was used to optimize the variables temperature (459, 500, 600, 700, 741 °C) and carrier gas flow (0.259; 0.3; 0.4; 0.5 and 0.541 L/min), in order to identify the ideal conditions for obtaining bio-oil (BO). From the optimized result, the products were characterized using various techniques (FTIR, CG / MS, HPTLC, NMR, MEV, humidity, CHNO). Temperature was the most influential parameter in relation to liquid and solid yields, and the combination of variables influenced the yield in gas. There was a higher yield in BO (45.29%) whose composition showed a large amount of fatty acids, alkanes, alkenes and phenolic compounds, the latter with high antioxidant capacity. Biochar showed low yield (27.52%), but good energy capacity, the gas yield was 27.89%. The calorific value of the BO was 24.48 MJ/kg and the biochar was 19.27 MJ/kg. The results of the techniques used, prove the use of EFB as a renewable source in obtaining biofuels.Acesso Abertohttp://creativecommons.org/licenses/by-nc-nd/4.0/PiróliseCacho Sem Fruto (CSF)Planejamento Composto Central Rotacional (PCCR)CaracterizaçãoCromatografia de Camada Delgada de Alta Eficiência (CCDAE)Empty fruit bunchesPyrolysisExperimental designCharacterizationTeseCNPQ::ENGENHARIASMEIO AMBIENTE E ENERGIAUSO E TRANSFORMAÇÃO DE RECURSOS NATURAIS