A5072020052- Biodiesel Production and Applications
- Thermochemical Biomass Conversion Processes
- Dark Matter and Cosmic Phenomena
- Chemical Synthesis and Reactions
- Particle physics theoretical and experimental studies
- Innovative Microfluidic and Catalytic Techniques Innovation
- Environmental Sustainability and Education
- Biofuel production and bioconversion
- Ionic liquids properties and applications
- Enzyme Catalysis and Immobilization
- Energy and Environment Impacts
- Particle Detector Development and Performance
- Catalysis and Hydrodesulfurization Studies
- Combustion and flame dynamics
- Coffee research and impacts
- Traffic control and management
- Plant biochemistry and biosynthesis
- Coal Combustion and Slurry Processing
- Cosmology and Gravitation Theories
- Agricultural and Food Sciences
- Carbon Dioxide Capture Technologies
- Synthetic Organic Chemistry Methods
- Atomic and Subatomic Physics Research
- Petroleum Processing and Analysis
LIP - Laboratory of Instrumentation and Experimental Particle Physics
2020-2023
University of Coimbra
2020-2023
Universidade de Brasília
2004-2022
Universidade Estadual de Maringá
2013
The disposal of spent coffee grounds (SCG) and brewers' grains (BSG) has become an environmental issue. Thus, the waste-to-energy valorization these two low-cost feedstocks was performed via gasification pyrolysis to assess their potential as syngas biochar fuels. processes' optimum conditions were investigated by a multiple-criteria decision support method. Firstly, both raw materials gasified at 1000 °C with O2/N2, O2/CO2/N2 O2/H2O/N2 atmospheres. characteristics energy performance...
OILS AND FATS BASED BIOFUELS: TECHNOLOGICAL CHALENDGES.Periodically, during petroleum shortage, fatty acids and their derivatives have been used as alternative fuels to those derived from petroleum.Different approaches proposed, including the use of neat fats oils or derivatives.Indeed, utilization biodiesel produced by alcoholysis triacilglycerides esterification acids, hydrocarbons obtained cracking materials were studied in several countries.Increasing concerns about energy security...
This paper evaluated steam and CO2-enhanced gasification of spent coffee ground (SCG) biomass, including energy exergy aspects focusing on hydrogen production. The waste-to-hydrogen (WTH) conversion was performed via (1000 °C) with a drop-tube-reactor investigating six different to biomass (SBR 0.5, 0.8 1.2) CO2 (CO2BR 0.09, 0.18 0.27) ratios. syngas production indicated clear improvement against O2/N2 an H2 yield increase up 69.21% 18.32% for mediums. analysis points out the SBR as optimum...
A great variety of imines were efficiently isolated in high yields from the reaction aldehydes and amines ionic liquids. The liquids could be recovered reused for at least five cycles without loss being a useful alternative to dichloromethane or diethyl ether, which are commonly used solvents this reaction.
Niobium pentachloride, tantalum pentachloride and indium trichloride efficiently catalysed the cyclization of (R)-citronellal to a mixture isopulegol neoisopulegol in good yields. A comparative study was carried out which demonstrated that NbCl5 is most active Lewis acid whereas InCl3 selective one. The selectivity reactions varied according used solvent. ene reaction 1,7-diene also investigated. In this case, all acids tested showed excellent selectivity.
Neste trabalho descrevemos a obtenção de hidrocarbonetos líquidos por meio do hidrocraqueamento catalítico óleo soja, dendê e mamona, na presença ausência catalisadores nanoparticulados rutênio ródio.A reação realizada 200 °C leva somente à hidrogenação ligações duplas C=C.No entanto, 400 °C, foi observada decomposição dos triacilglicerídeos, levando compostos oxigenados.O óleos vegetais Rh Ru levou um aumento da quantidade produtos desoxigenados formação lineares cadeia longa, que são...
Biodiesel is the biofuel most used by many countries because it a renewable source, biodegradable and based on tripod: environment, social energy. Thus, some industries are conducting internal programs to recycle their waste reduce operating expenses, generate new by-product for industry, control pollution. The Cerrado Emporium Association collects 30-50 ton./year of pequi fruit. (Caryocar brasiliense), being its main byproduct stone which has no industrial application increase...
Based on Brazilian isolated communities’ situation about absence energy distribution, mainly in the Amazon, northeastern semi-arid and regions of Savana, some alternatives should be developed to produce electric power for supply. Looking capacities sources these communities, oilseed production capacity is most promised. So, a easy handle pilot plant cracking oils fats was biofuels. This study aimed analyse mass balances check its viability sustainable For this, three different temperatures...