Produção Nacional
Revisado por pares
Environmental and Energetic Evaluation of Refuse-Derived Fuel Gasification for Electricity Generation
2021; Multidisciplinary Digital Publishing Institute; Volume: 9; Issue: 12 Linguagem: Inglês
10.3390/pr9122255
ISSN2227-9717
AutoresTaís Eliane Marques, York Castillo Santiago, Maria Luiza Grillo Renó, Diego Mauricio Yepes Maya, Leandro Alcoforado Sphaier, Yunye Shi, Albert Ratner,
Tópico(s)Municipal Solid Waste Management
ResumoIn this work, an energetic and environmental evaluation of the electricity generation process through refuse-derived fuel (RDF) gasification coupled to a gas microturbine (GM) was performed. Two scenarios are considered with different gasification agents in RDF gasification modeling: air and air enriched with oxygen. A thermodynamic chemical equilibrium approach was used to analyze the gasification parameters. The results of RDF gasification indicate a maximum value of syngas low heating value (LHV) equal to 8.0 MJ/Nm3, obtained for an equivalence ratio of 0.3. The use of these syngas in the gas microturbine produces 79.6 kW of electrical power. For the environmental evaluation of gasification and electricity generation systems, the Life Cycle Assessment methodology was employed. The calculated environmental impacts indicate that the emission of contaminants from fossil fuel combustion (in the stage of transport by heavy load vehicles) and that the electricity consumption for equipment operation (in the stage of municipal solid waste pretreatment) contributes to environmental pollution. On the other hand, electricity generation through GM presented lower environmental impact for all analyzed categories, suggesting that the electricity generation from gas obtained from gasification could be a viable option for thermochemical conversion of RDF and its subsequent energetic use.
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