Publicação: Emissões de gases do efeito estufa da queima de pellets de madeira
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Forecasts indicate the growth in use of forest biomass as the energy resource in the coming years, especially after the recent agreements reached at Paris Climate Summit - COP21, which imply the replacement of fossil fuels for renewable ones, with low-emission Greenhouse Gas - GHG. There are few studies relating the wood pellets combustion with the limits of these emissions established for forest biomass. This study compared the pellet combustion emissions with the maximum limits established in Resolution n° 436 of the National Council of Environment - CONAMA. Four samples of wood pellets and three forest biomasses (pine bark, pine chip and eucalyptus sawdust) were used. A vegetable biomass burner was used for combustion, with automatic feed and consumption of 14 kg per hour. Emissions analyzes were performed with the Unigas 3000 MKIII electrochemical analyzer, which determined the chemical composition of the combustion gases. The results showed that the wood pellets have low CO, NOx and SOx emissions. Thus, it can be concluded that these biomasses meet the gaseous emission limits established by the current legislation, except for eucalyptus sawdust and pine bark biomass.
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Ashes, Combustion, COP21, Forest biomass, Solid fuel
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Português
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Floresta, v. 47, n. 3, p. 297-306, 2017.
