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Article

Techno-Economic and Environmental Assessment of Municipal Solid Waste Energetic Valorization

1
Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Concepción, Concepción 4070386, Chile
2
Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad del Bío-Bío, Concepción 4051381, Chile
3
Department of Chemical and Energy, Campus of Guaratinguetá, São Paulo State University, Guaratinguetá 12516-410, Brazil
4
Laboratory of Combustion, Technological Institute of Aeronautics, Propulsion and Energy, São José dos Campos 12228-900, Brazil
5
Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Camagüey, Camagüey 70100, Cuba
6
Departamento de Ingeniería Mecánica, Facultad de Ciencias Técnicas, University of Pinar del Rio, Pinar del Rio 20100, Cuba
*
Author to whom correspondence should be addressed.
Energies 2022, 15(23), 8900; https://doi.org/10.3390/en15238900
Received: 26 September 2022 / Revised: 14 November 2022 / Accepted: 20 November 2022 / Published: 24 November 2022
(This article belongs to the Topic Clean Energy Technologies and Assessment)

Abstract

In 2019, Chile generated 20 million tons of waste, 79% of which was not properly disposed of, thereby providing an attractive opportunity for energy generation in advanced thermochemical conversion processes. This study presents a techno-economic and environmental assessment of the implementation of Waste-Integrated Gasifier-Gas Turbine Combined Cycle (WIG-GTCC) technology as an alternative for Municipal Solid Waste (MSW) treatment. The studied case assesses the conversion of 14.61 t·h−1 of MSW, which produces a combustible gas with a flow rate of 34.2 t·h −1 and LHV of 5900 kJ·kg−1, which, in turn, is used in a combined cycle to generate 19.58 MW of electrical power. The proposed economic assessment of the technology uses the energy generation processes as a reference, followed by a model for an overall economic evaluation. The results have shown that the profit could be up to USD 24.1 million, and the recovery of investment between 12 and 17 years would improve the environmental impacts of the current disposal technology. The WIG-GTCC has the most efficient conversion route, emitting 0.285 kg CO2 eq/kWh, which represents 48.21% of the potential yield of global warming over 100 years (GWP100) of incineration and 58.51% of the GWP100 of the standard gasification method. The WIG-GTCC would enable the energetic valorization of MSW in Chile, eliminate problems associated with landfill disposal, and increase opportunities for decentralized electricity generation.
Keywords: gasification; municipal solid waste; cogeneration; energetic valorization; techno-economic assessment; environmental assessment gasification; municipal solid waste; cogeneration; energetic valorization; techno-economic assessment; environmental assessment

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MDPI and ACS Style

Machin, E.B.; Pedroso, D.T.; Acosta, D.G.; Silva dos Santos, M.I.; de Carvalho, F.S.; Machín, A.B.; Neira Ortíz, M.A.; Arriagada, R.S.; Travieso Fernández, D.I.; Braga Maciel, L.B.; Arcos, D.C.; Reyes, Y.G.; de Carvalho Júnior, J.A. Techno-Economic and Environmental Assessment of Municipal Solid Waste Energetic Valorization. Energies 2022, 15, 8900. https://doi.org/10.3390/en15238900

AMA Style

Machin EB, Pedroso DT, Acosta DG, Silva dos Santos MI, de Carvalho FS, Machín AB, Neira Ortíz MA, Arriagada RS, Travieso Fernández DI, Braga Maciel LB, Arcos DC, Reyes YG, de Carvalho Júnior JA. Techno-Economic and Environmental Assessment of Municipal Solid Waste Energetic Valorization. Energies. 2022; 15(23):8900. https://doi.org/10.3390/en15238900

Chicago/Turabian Style

Machin, Einara Blanco, Daniel Travieso Pedroso, Daviel Gómez Acosta, Maria Isabel Silva dos Santos, Felipe Solferini de Carvalho, Adrian Blanco Machín, Matías Abner Neira Ortíz, Reinaldo Sánchez Arriagada, Daniel Ignacio Travieso Fernández, Lúcia Bollini Braga Maciel, Daniel Cuevas Arcos, Yanet Guerra Reyes, and Joao Andrade de Carvalho Júnior. 2022. "Techno-Economic and Environmental Assessment of Municipal Solid Waste Energetic Valorization" Energies 15, no. 23: 8900. https://doi.org/10.3390/en15238900

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