Among the other energy sources, biomass resources are extremely promising since they
are widespread and cheaply available in most of the countries. Today, biomass constitutes
about 10% of the global primary energy demand, and it is mainly used in inefficient and traditional
applications in developing countries (GBEP, 2007; IEO, 2009). Modern uses of biomass
are restricted to developed countries to produce space heating, power, transportation
biofuels (mainly bioethanol and biodiesel), and few chemical products. Given the variety
of applications for biomass sources, it is extremely important to select the most promising