Study on Potential of Gasification Technology for Municipal Solid Waste (MSW) in Pune City

Thakare, Shweta; Nandi, Somnath

doi:10.1016/j.egypro.2016.11.218

Cited by 52 publications

(12 citation statements)

References 6 publications

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“…The gasification of MSW is an effective technique to reduce the amount of waste, and is relatively faster than the conventional processes (more residues can be treated in less time). The process of integrated gasification and combustion emits dioxin and furan within acceptable limits established by national and international agencies [37].…”

Section: Gasificationmentioning

confidence: 96%

Municipal Solid Waste Management and Energy Recovery

Palácio¹,

Santos²,

Renó³

et al. 2019

Energy Conversion - Current Technologies and Future Trends

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The contribution of this chapter is to deepen and widen existing knowledge on municipal solid waste (MSW) management by analyzing different energy recovery routes for MSW. The main aspects related to the composition of waste are addressed, as well as the technological routes for thermochemical and biochemical energy usage. Within the thermochemical route, incineration is currently the most utilized technology for energy recovery of waste, with generation of electricity and heat and also a decrease in the volume of the produced waste. Gasification and pyrolysis are alternatives for the production of chemical products from wastes. The biological route is an interesting alternative for the utilization of the organic fraction of MSW, as aerobic or anaerobic processes enable the production of biogas and of a compound that can be utilized as a fertilizer. Depending on the size of the population, composition of waste, and products to be obtained (energy or chemical), more than one technology can be combined for a better energy usage of waste.

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Section: Gasificationmentioning

confidence: 96%

Municipal Solid Waste Management and Energy Recovery

Palácio¹,

Santos²,

Renó³

et al. 2019

Energy Conversion - Current Technologies and Future Trends

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show abstract

“…The main advantages of gasification are related to the fact that it is relatively faster than the other conventional processes. As a result, more waste can be treated in less time [30]. This technology may prevent the formation of dioxins and reduce the emission of acid gases [31].…”

Section: Gasificationmentioning

confidence: 99%

Assessment of Government Incentives for Energy from Waste in Colombia

et al. 2018

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This work evaluates the prefeasibility of energy from waste projects in Colombia under the guidelines of Law 1715. That piece of legislation proposes tax incentives for non-conventional energy initiatives, such as deductions of up to 50% on the investment through income tax, VAT exemption, tariff exemption, and accelerated depreciation of assets. Pasto, Colombia, was selected as the case study. Subsequently, incineration, gasification, anaerobic digestion, and landfill gas technologies were evaluated. The potential of electric power generation from municipal solid waste (MSW) of each conversion technology was estimated with mathematical models. Additionally, the economic evaluation considered five cases that combine loan options, accelerated depreciation, and income deductions. Finally, the prefeasibility analysis of each case and technology was based on the internal rate of return (IRR) and levelized cost of electricity (LCOE). The results reveal that only anaerobic digestion and landfill gas technologies constitute viable projects in case of traditional investment with and without loans, because they present IRRs greater than the discount rate, of 6.8%. However, by including the incentives in Law 1715 in the economic evaluation, IRRs of 11.18%, 7.96%, 14.27%, and 13.59% were obtained for incineration, gasification, anaerobic digestion, and landfill gas, respectively. These results make all four technologies feasible in this context.

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“…Con el mayor contenido de humedad de los RSU, disminuye la temperatura del proceso, el poder calorífico del gas de gasificación y la eficiencia de segunda ley. Esto se debe al mayor consumo energético requerido para evaporar el agua, ya que la menor temperatura de proceso inhibe la producción de gases combustibles (Bhavanam y Sastry, 2013;Thakare y Nandi, 2015). A medida que la temperatura del proceso de gasificación aumenta, las reacciones de gasificación se favorecen y con ello aumentan las concentraciones de H2 y CO, derivando un incremento en la eficiencia del proceso (Bhavanam y Sastry, 2013;Mendoza, Bula, Gómez, y Corredor, 2012).…”

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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Study on Potential of Gasification Technology for Municipal Solid Waste (MSW) in Pune City

Cited by 52 publications

References 6 publications

Municipal Solid Waste Management and Energy Recovery

Municipal Solid Waste Management and Energy Recovery

Assessment of Government Incentives for Energy from Waste in Colombia

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

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