https://repositorio.ufba.br/handle/ri/28179 Tue, 19 May 2026 01:11:22 GMT 2026-05-19T01:11:22Z https://repositorio.ufba.br/handle/ri/41345 Desenvolvimento de biocompósito utilizando resíduos do processo de fabricação de lona para pneus e bagaço de cana-de-açúcar Marques, Rebeca Nery Pontes, Luiz Antônio Magalhães Universidade Federal da Bahia Trabalho de Conclusão de Curso Tue, 10 Dec 2024 00:00:00 GMT https://repositorio.ufba.br/handle/ri/41345 2024-12-10T00:00:00Z https://repositorio.ufba.br/handle/ri/40661 Desenvolvimento de catalisador de zeólita beta contendo NB para a transformação da glicose Galvão, Vitor Almeida de Novaes Pontes, Luiz Antônio Magalhães Glucose, an aldose extractable from abundant lignocellulosic biomass, can be transformed into various isomers, such as fructose, through heterogeneous catalysis using Beta zeolites. This ketose, in turn, holds significant industrial value by serving as an intermediate in the synthesis of various intriguing products, like 5-hydroxymethylfurfural, for instance. The aim of this study is to develop catalysts for glucose transformation into other sugars by conducting preparation, characterization, and catalytic evaluation in a batch reactor. To achieve this, zeolites containing 10% by weight of niobium were prepared via impregnation with ammoniacal niobium oxalate. Catalytic assessment revealed that the introduction of the metal into the catalyst could triple the glucose transformation rates, reaching a maximum conversion of 43%. Additionally, under autogenous pressure, the catalyzed reaction using 1.25% (w/w) of zeolite at 140°C yielded fructose with a maximum selectivity of 13%, whereas no fructose was obtained under the condition of 0.25% (w/w) catalyst at 120°C. UNIVERSIDADE FEDERAL DA BAHIA Trabalho de Conclusão de Curso Wed, 20 Dec 2023 00:00:00 GMT https://repositorio.ufba.br/handle/ri/40661 2023-12-20T00:00:00Z https://repositorio.ufba.br/handle/ri/39949 Estudo sobre qualidade da água de quench em uma planta de etileno Silva, Leilane Aragão da Costa, Daniela Araújo Universidade Federal da Bahia Trabalho de Conclusão de Curso Mon, 01 Jan 2024 00:00:00 GMT https://repositorio.ufba.br/handle/ri/39949 2024-01-01T00:00:00Z https://repositorio.ufba.br/handle/ri/39948 Cultivo de chlorella vulgaris em biorreator tipo raceway em água residual da extração de petróleo Borges, Ana Victória dos Santos Souza, Carolina Oliveira de Universidade Federal da Bahia Trabalho de Conclusão de Curso Mon, 05 Aug 2024 00:00:00 GMT https://repositorio.ufba.br/handle/ri/39948 2024-08-05T00:00:00Z