Quality is a prerequisite for the long-term success (successful use, without technical
problems) of a biofuel. Biodiesel quality depends on several factors that reflect its chemical …

The paper presents the evolution of the pollutant emissions such as carbon monoxide,
hydrocarbons, particulate matter or nitrogen oxides with respect to the emission standards …

The paper presents an introspection into the methods used by the producers in order to offer
vehicles that pollute less: active (constructive methods) and passive methods (solutions for …

Biodiesel due to several promising properties can be used in pure form or blended with
petroleum diesel in various diesel engines of vehicles, aircrafts and trains. Among various …

The necessity and high importance of testing the lubricant main properties, as viscosity and
density, at different temperature levels and in various cases of fuel supply methods and …

Para esterificação, as miniemulsões (MEs) têm-se apresentado favoráveis, pois a catálise
se dá na interface entre a gota e a fase contínua, permitindo uma maior velocidade de …