Síntese de SBA-16 utilizando cinzas de bagaço de cana-de-açúcar e sua aplicação na produção de biodiesel

• Ano de defesa: 2015
• Autor(a) principal: Boza, Arthur Felipe
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual de Maringá; Brasil; Departamento de Engenharia Mecânica; Programa de Pós-Graduação em Engenharia Mecânica; UEM; Maringá, PR; Centro de Tecnologia
• Palavras-chave em Português: Materiais mesoporosos; Reciclagem; Bagaço da cana-de-açúcar; Biodiesel; Cinzas do bagaço da cana-de-açúcar; SBA-16; Esterificação; Brasil.; Engenharias; Engenharia Mecânica
• Link de acesso: http://repositorio.uem.br:8080/jspui/handle/1/3595

The sugarcane industry in Brazil is responsible for generating annually about 105 million tons of sugarcane bagasse ash (SCBA) in the process of power generation. As there is currently, no legislation in force that deals with this solid waste usually ends up being allocated inappropriately or taking up space in landfills, which can lead to greater environmental impacts. The SBCA presents in its composition different oxides including silicon dioxide is the most plentiful, usually has values higher than 60% by mass. The concern for sustainable development takes the direction of research on recycling of waste generated by industries. In this sense, a synthesis route has been proposed for obtaining a mesoporous material SBA-16 type using the SBCA as silicon source, and their use as acid catalyst in oleic acid esterification reaction for biodiesel production. Initially, for the synthesis it was collected from a local mill the SBCA which served as the precursor of silicon source for the SBA-16 obtained. The synthesis carried out with and without hydrothermal treatment. The samples, 0h, 3h, 6h, 12h, 24h and 36h were characterized by low angle X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, nitrogen adsorption techniques, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The samples showed textual and structural properties suitable for this type of mesoporous material. The catalytic activity was evaluated after the acidification of the SBA-16 by grafting of sulfonic acid groups onto surface, measured by temperature-programmed desorption of ammonia (TPD-NH3), followed by oleic acid methyl esterification to produce biodiesel which obtained yield 98.3%, performed by vapor-phase chromatography.