Análise térmica, cromatográfica e energética do biogás proveniente da produção de carvão vegetal em laboratório

Abstract

Wood carbonization process releases a large amount of non-condensable gaseous waste. In its composition, also called as biogas, three components can be highlighted: methane (CH4), carbon monoxide (CO) and carbon dioxide (CO2), these are the elements responsible for accelerating of the greenhouse effect. Biogas is usually discarded without having any kind of recycling. That can be an important alternative for financial gain when it is reinserted into the process or even used as a fuel. Moreover, when burned, it can reduce significantly the environmental impacts. An analytic equation of chromatographic calibration was developed in this study. Also a heating curve was created capable to reproduce a carbonization process of industrial wood in laboratorial conditions. Flow and chromatographic analysis of biogas resulted from wood carbonization process were performed, pointing and measuring in laboratorial scale two of its main components: methane (CH4) (1% of the total volume) and carbon monoxide (CO) (4% of the total volume). Finally, the study demonstrated that a quantity of energy discarded to the atmosphere can be higher than 16 GJ, presenting a contribution to an ecological view for the coal sector, providing the reduction of environmental impacts and hence economic benefits to the companies involved.