A5103114681- Biodiesel Production and Applications
- Thermochemical Biomass Conversion Processes
- Various Chemistry Research Topics
- Biofuel production and bioconversion
- Advanced MRI Techniques and Applications
- Water Quality Monitoring and Analysis
- Energy and Environment Impacts
- Spectroscopy and Chemometric Analyses
- Advanced NMR Techniques and Applications
Universidade Federal do Ceará
2023-2024
The present study evaluated the applicability of 1H NMR and UV-Vis spectroscopies as analytical techniques for characterization determination biodiesel conversion monitoring oxidative stability samples with antioxidants. For this study, safflower babassu biodiesels were obtained through transesterification, physicochemical properties confirmed success both reactions. A bench-top accelerated oxidation system was used an alternative to Rancimat® method, 6.0 g heated at 110 ± 5 °C collected...
The energetic potential of the seed shell Neem plant (Azadirachta indica) was investigated using proximate analysis, Higher Heating Value (HHV), thermal analysis (TG-DTG and DSC) in inert oxidative atmospheres, X-ray fluorescence (XRF). results ash (3.80% ± 0.44), volatile matter (81.76% 1.30), fixed carbon (14.44% 1.74), estimated HHV (18.791 MJ/kg: average value) are compatible with other biomasses already used as fuels bioenergy industry. Thermograms showed three main degradation events...
The growing demand for energy and the concern about environmental impacts reinforce necessity renewable sources such as biofuels. In this study, cake generated in babassu oil extraction was evaluated a potential feedstock solid biofuel production, it contains blend of cashew nutshell, sugarcane bagasse, carnauba straw, stalk. All samples were characterized by proximate analysis Higher Heating Value. Carbonization used to improve performance compaction understand mechanism characteristics...
O objetivo do trabalho foi produzir biodiesel a partir dos óleos de soja, babaçu e fritura, utilizando duas metodologias, avaliar o uso da Ressonância Magnética Nuclear próton como ferramenta para avaliação conversão em ésteres metílicos. As amostras foram produzidas por transesterificação. De acordo com os resultados, 2ª metodologia contribui aumento na ordem 22,14% (BOS), 2,64% (BOB) 10,16% (BOF). A RMN 1H eficaz determinação das conversões metílicos, obtendo-se mesma tendência resultados...