Produção de hidrocarbonetos renováveis a partir da desoxigenação catalítica de óleos vegetais utilizando catalisadores bifuncionais de Mo/HBeta
The rapid depletion of fossil fuel supplies and high demand for consumption of such fuels makes it necessary to find potential alternatives for your replacement. That said, are studies that produce biofuels using biomass that don’t compete with food production and not contribute to deforestation....
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| Formato: | bachelorThesis |
| Idioma: | pt_BR |
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Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/38291 |
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| Resumo: | The rapid depletion of fossil fuel supplies and high demand for consumption of such fuels
makes it necessary to find potential alternatives for your replacement. That said, are studies
that produce biofuels using biomass that don’t compete with food production and not
contribute to deforestation. Between the conversion of fatty acids is thermos catalytic
pyrolysis. Fast pyrolysis results in high production of liquid fuel called bio-oil and is
considered a notable alternative to the depletion of fossil fuels. This paper proposes the use of
zeolite HBeta, impregnated with 7.5% of Molybdenum as a catalyst, to obtain renewable
hydrocarbons from the frying oil. The zeolite HBeta and the catalyst Mo/HBeta obtained were
characterized by X Ray Diffraction (XRD), in the region of the Infrared Spectroscopy (FTIR),
Raman Spectroscopy, scanning electron microscopy (SEM); the thermal stability of materials
was studied by thermogravimetry (TG) and differential scanning calorimetry (DSC). The
behavior of the frying oil, with and without the presence of a catalyst, was analyzed by TGFTIR
and underwent rapid pyrolysis for a pyrolyzer coupled to GC-MS (Py-GC/MS), in
which the products have been assessed regarding the percentage and fraction of hydrocarbons
obtained. The results were 55.5% of hydrocarbons to thermal pyrolysis, showing majority the
fraction of C11-C14, in which the main product is biokerosene. While thermos catalytic
pyrolysis was more effective, featuring more free oxygen compounds, with 76.6% of
hydrocarbons and the fraction of C5-C10 with 78.8%, this being primarily is biogasoline. |
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