Estudo de implantação de uma planta de biogás nos Campos Gerais

Abstract

Brazil is one of the countries with the most expressive agricultural production in the world, generating an equally relevant amount of waste. Allied to this, the global scenario is unique: there is an increase in petroleum products, global warming and the great consumer demand for sustainable products. Taking these factors into account, the opportunity arises for biogas, a clean and waste-based biofuel, which, in addition to correctly disposing of waste, promotes the decarbonization of the property where it was installed, reducing the consumption of electricity, thermal and vehicle energy. Through the characterization of a rural property and its waste, the survey of local energy demand and the potential for methane production from waste, this work proposed to define the theoretical technical and financial feasibility of implementing a biogas plant. The most suitable biodigester for the rural property’s demand of the was the flow digestor type and a 20 kVA generator engine was selected for the transformation of biogas into electricity. In addition, a payback period of 6 months and a positive NPV of R$ 87,513.80 was calculated. The final analysis was that the project is viable and would still generate a surplus of 1,920.82 kW/month that could be used to supply heat to the property, burn gas in showers and stoves and even reduce the electricity bill in other properties with the same CNPJ as the rural property studied.