Abstract
Internal combustion engines exhaust gases are largely contributing to the emissions of greenhouse gases (GHG). This phenomenon is mainly due to the presence of CO2 in the exhaust gases. The fossil fuel reserves are unevenly spread in the world and the availability of those is limited. Biomass alternative fuels are sustainable and their effect on the environment, from the CO2 emissions point of view is neuter. The feedstock, represented by biomass absorbs CO2 and, during the combustion this quantity is released into atmosphere. This paper highlights the compatibility of alternative fuels with classic compression ignited engines. From the multitude of choices it was opted for the second generation of bio-fuels, represented by algae oil and Biomass To Liquid (BtL) fuel. This generation of bio-fuels is highlighted by the fact that the feedstock used does not compete with the food industry and the fuel production technology is using the hole feedstock mass.
Keywords: Alternative fuels, Diesel Combustion, BtL, Algae Biodiesel.