The difficulty which is currently in obtaining fuel and mainly used in engines operating in the Otto cycle, therefore we need to get the best possible performance of these types of engines. This work aimed to analyze how ...

This work presents a study of technical and economic feasibility of developing an electric hybrid vehicle that uses fuel like ethanol. It presents the models currently available in the Brazilian automotive market and its ...

Biofuel is a renewable source of energy and reduce dependence on fossil fuels. Alternatives to make it more attractive and economically viable biofuels have become of great interest for researchers. Then biodiesel production, ...

With the technologic development and the changing of the life standards from the population the amount of solid residues increases each day more, considering the growing of the amount of oriental restaurants in Brazil it’s ...

The importance attached to biofuels has increased in recent years due to global concerns about the consequences of global warming advances and rising oil prices. However, the production of these conventional biofuels is ...

The biodiesel production occurs through the transesterification reaction, which corresponds to the mixture of excess oil and alcohol in the presence of a catalyst. However, both in the reaction and in the separation step ...

The increase in the consumption of fossil fuels is in large part associated to the increment of the fleet of vehicles over the last years and has contributed to the intensification of the emission of atmospheric pollutants ...

The requirement for new sources and processes to obtain fuels has grown as the society develops. Both in the agricultural and urban zones, the usage of machines, cars and trucks that requires fuel to execute their activities ...

Considering that gasoline is one of the most important products derived from petroleum, being the second most consumed fuel in Brazil, the control of its quality is of great importance. The National Petroleum Agency (ANP) ...

The technique of X-ray Fluorescence Spectrometry is widely used due to its simple methodology and the fact that it generates few residues. However, when it comes to analysis of sulfur content in fossil fuels, the technique ...