Techno-economic analysis of municipal solid waste gasification for electricity generation in Brazil

Luz, Fábio Codignole; Rocha, Mateus Henrique; Lora, Electo Eduardo Silva; Venturini, Osvaldo José; Andrade, Rubenildo Vieira; Leme, Marcio Montagnana Vicente; Olmo, Oscar Almazán del

doi:10.1016/j.enconman.2015.06.074

Cited by 166 publications

(82 citation statements)

References 34 publications

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“…They concluded that the second option did not present economic feasibility for the considered financial parameters adopted, mainly owing to the high cost of investment and operation/maintenance costs and low waste treatment taxes paid by the cities. Luz et al (2015) evaluated the technical and economic feasibility of gasification from MSW to generate electricity for the Brazilian municipalities, sorted according to population subgroups, whose parameter was used as a basis for the calculation of solid waste production, project costs and revenues. Various expenses were taken into account, such as investment, operation and maintenance costs, and interest rate variations.…”

Section: Methodsmentioning

confidence: 99%

Comparative analysis of waste-to-energy alternatives for a low-capacity power plant in Brazil

Ferreira

Balestieri

2018

Waste Manag Res

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The Brazilian National Solid Waste Policy has been implemented with some difficulty, especially in convincing the different actors of society about the importance of conscious awareness among every citizen and businesses concerning adequate solid waste disposal and recycling. Technologies for recovering energy from municipal solid waste were considered in National Solid Waste Policy (NSWP), given that their technical and environmental viability is ensured, being the landfill biogas burning in internal combustion engines and solid waste incineration suggested options. In the present work, an analysis of current technologies and a collection of basic data on electricity generation using biogas from waste/liquid effluents is presented, as well as an assessment of the installation of a facility that harnesses biogas from waste or liquid effluents for producing electricity. Two combined cycle concepts were evaluated with capacity in the range 4-11 MW, gas turbine burning landfill biogas and an incinerator that burns solid waste hybrid cycle, and a solid waste gasification system to burn syngas in gas turbines. A comparative analysis of them demonstrated that the cycle with gasification from solid waste has proved to be technically more appealing than the hybrid cycle integrated with incineration because of its greater efficiency and considering the initially defined guidelines for electricity generation. The economic analysis does not reveal significant attractive values; however, this is not a significant penalty to the project given the fact that this is a pilot low-capacity facility, which is intended to be constructed to demonstrate appropriate technologies of energy recovery from solid waste.

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Section: Methodsmentioning

confidence: 99%

Comparative analysis of waste-to-energy alternatives for a low-capacity power plant in Brazil

Ferreira

Balestieri

2018

Waste Manag Res

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“…A study conducted in Brazil [24] analyzed and assessed the technical and economic aspects of a MSW gasification configuration for electricity generation. Their technical evaluation was primarily focused on installed power, capacity utilization factor, specific electrical power generation and efficiencies.…”

Section: Gasificationmentioning

confidence: 99%

“…Biological conversion technologies: Even though landfill gas offers advantages such as the low cost of investment and collected waste, the latter must be properly stored and covered, thus generating additional expenses [24]. Besides, the generated biogas' recovery rate might be less efficient, as in the case of anaerobic digestion [54].…”

Section: Thermal Conversionmentioning

confidence: 99%

Electricity generation potential from solid waste in three Colombian municipalities

Arias

Cuestas

Jaramillo-Duque

2018

TecnoL.

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This study estimates the electric energy production potential from municipal solid waste in Colombia. The Colombian municipalities of Pasto (Department of Nariño), Andes (Antioquia) and Guayatá (Boyacá) were selected as representative populations of the national context because of their socioeconomic and demographic features, as well as the public availability of their waste management plans. The technical characteristics of two conversion technologies were analyzed: incineration (thermal conversion) and anaerobic digestion (biological conversion). From a technical point of view, the results showed that anaerobic digestion is feasible in all three scenarios, while incineration is viable in Pasto and Andes.

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“…El proceso de gasificación, conocido como oxidación parcial de sólidos carbonosos, transformará los RSU en una mezcla de especies gaseosas formada principalmente por CO, CO2, H2, CH4, H2O, y N2. El gas será oxidado con el aire secundario buscando aumentar la eficiencia de combustión global, y reduciendo los impactos ambientales negativos, asociados a la formación de emisiones contaminantes, por lo que se considera un proceso más sostenible que la incineración (Arena, 2012;Castaldi et al, 2017;Luz et al, 2015). En las calderas de parilla móvil la transformación termoquímica del sólido se desarrolla de modo similar al lecho fijo, donde los principales sub-procesos son el secado, la devolatilización, la oxidación y la reducción (Yang et al, 2007;Yu et al, 2010).…”

Section: Introductionunclassified

Generación de Energía a partir de Residuos Sólidos Urbanos. Estrategias Termodinámicas para Optimizar el Desempeño de Centrales Térmicas

Montiel-Bohórquez

Pérez

2019

Inf. tecnol.

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ResumenSe determinan estrategias termodinámicas para la conversión energética de Residuos Sólidos Urbanos (RSU) en plantas de incineración bajo condiciones sub-estequiométricas. La valoración energética de RSU es una alternativa para mitigar los impactos ambientales que genera su disposición final, siendo la producción de RSU de la ciudad de Medellín (Colombia) de aproximadamente 1800 ton/día. El análisis se lleva a cabo mediante un modelo en equilibrio termoquímico del proceso de gasificación, donde se estudia el efecto del contenido de humedad y la relación equivalente combustible-aire en el proceso termoquímico. El potencial energético de los RSU de la ciudad es de 28 a 44 MW eléctricos. Las estrategias termodinámicas para aprovechar energéticamente los RSU en plantas de incineración bajo condiciones sub-estequiométricas, de modo autotérmico y evitando la fusión de cenizas, establecen que el proceso se debe llevar a cabo con una relación equivalente combustible-aire de gasificación entre 1.5 y 3.3, independiente del contenido de humedad de los RSU. Palabras clave: valoración energética; residuos sólidos urbanos; equilibrio termoquímico; gasificación AbstractIn this study, thermodynamic strategies are determined for the energy conversion of Municipal Solid Wastes (MSW) in incineration plants under sub-stoichiometric conditions. Energy generation from MSW is an alternative to mitigate the environmental impacts derived by their final disposal, being the production rate of MSW in Medellin city (Colombia) of about 1800 ton/day. The analysis is conducted by means of a thermochemical equilibrium model of the gasification process, where the effect of moisture content and fuelair equivalence ratio on the thermochemical process is studied. The energy potential of MSW from the city is between 28 and 44 MWe. The thermodynamic strategies for energy recovery from MSW in incineration plants at sub-stoichiometric conditions, under auto-thermal regimens and avoiding ash fusion, establish that the process must be carried out with a fuel-air equivalence ratio between 1.5 and 3.3, regardless of the moisture content of the MSW.

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Techno-economic analysis of municipal solid waste gasification for electricity generation in Brazil

Cited by 166 publications

References 34 publications

Comparative analysis of waste-to-energy alternatives for a low-capacity power plant in Brazil

Comparative analysis of waste-to-energy alternatives for a low-capacity power plant in Brazil

Electricity generation potential from solid waste in three Colombian municipalities

Generación de Energía a partir de Residuos Sólidos Urbanos. Estrategias Termodinámicas para Optimizar el Desempeño de Centrales Térmicas

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