Analysis and Evaluation of Environment Benefit for Biomass-Fired Power Generation

Biomass is an effective solution for the depletion of fossil fuels and degradation of environment. In this study, some indicators were created for analyzing and evaluating the environmental benefits for biomass-fired power generation, which include that of CO₂, SO₂ and PM₁₀. The results have been shown that the emission factors of biomass-fired power generation are far less than that of coal-fired system. CO₂ emission reduction factor is about 2600 g/kg, SO₂ emission reduction factor is between 11~14 g/kg, and that of PM₁₀ is about 0.6 g/kg by biomass-fired power generation comparing with that of coal-fired system. Another, according to the "Eleventh Five" Plan of China, 5500 MW of coal-fired power units will be replaced by biomass-fired power units, then the annual emission reduction amounts of SO₂, PM₁₀ and CO₂ may reach 2 times 10⁵ ,4 times 10⁷, 1.0 times 10⁴ ton respectively. So, the environmental benefit of biomass-fired power generation is enormous.