ABSTRACT
Nowadays, the world is facing the progressive depletion of its energy resources mainly based on nonrenewable fuels. At the same time, energy consumption grows at rising rates. In addition, the intensive utilization of fossil fuels has led to the increase in the generation of polluting gases released into the atmosphere, which have caused changes in the global climate. The solution depends on how the development and implementation of technologies based on alternative sources of energy will be undertaken. Through the use of renewable energetic resources, humankind can nd part of the solution to their energy requirements in an environmentally and friendly way. Global potential of bioenergy is represented in energy crops and lignocellulosic residues. Conversion of these feedstocks into biofuels is an important choice for the exploitation of alternative energy sources and reduction of polluting gases. In addition, the utilization of biofuels has important economic and social effects.
