Evaluation of two different alternatives of energy recovery from municipal solid waste in Brazil

Abstract

Brazil has a large population with a high waste generation. The municipal solid waste (MSW) generated is deposited mainly in landfills. However, a considerable fraction of the waste is still improperly disposed of in dumpsters. In order to overcome this inadequate deposition, it is necessary to seek alternative routes. Between these alternatives, it is possible to quote gasification and incineration. The objective of this study is to compare, from an energetic and economic point of view, these technologies, aiming at their possible implementation in Brazilian cities. A total of two configurations were evaluated: (i) waste incineration with energy recovery and electricity production in a steam cycle; and (ii) waste gasification, where the syngas produced is used as fuel in a boiler of a steam cycle for electricity production. Simulations were performed assuming the same amount of available waste for both configurations, with a composition corresponding to the MSW from Santo André, Brazil. The thermal efficiencies of the gasification and incineration configurations were 19.3% and 25.1%, respectively. The difference in the efficiencies was caused by the irreversibilities associated with the gasification process, and the additional electricity consumption in the waste treatment step. The economic analysis presented a cost of electrical energy produced of 0.113 (US$ kWh⁻¹) and 0.139 (US$ kWh⁻¹) for the incineration and gasification plants respectively.

Keywords

Waste-to-energy municipal solid waste energy recovery gasification

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References

Abrelpe (2016) Panorama Dos Resíduos Sólidos No Brasil 2015 [Panorama of Solid Waste in Brazil 2015]. São Paulo: Brazilian Association of Public Cleaning and Special Waste Companies.

Arena

Zaccariello

Mastellone

(2010) Fluidized bed gasification of waste-derived fuels. Waste Management 30(7) 1212–1219.

Basu

(2010) Introduction: In: Biomass Gasification and Pyrolysis: Practical Design and Theory. Kidlington, Oxford, UK: Elsevier, pp. 1–25.

Caputo

Pelagagge

(2002) RDF production plants ii economics and proﬁtability. Applied Thermal Engineering 22: 423–437.

Chang

Huang

(2001) Characteristics of energy flow in municipal solid waste incinerator. Environmental Engineering 127(1): 78–81.

Clerens Consulting (2012) Energy recovery efficiency in municipal solid waste-to-energy plants in relation to local climate conditions. Report. Clerens Consulting Brussels. Belgium.

Consonni

Viganò

(2012) Waste gasification vs. conventional waste-to-energy: A comparative evaluation of two commercial technologies. Waste Management 32(4): 653–666.

Ellyin

Themelis

(2012) Small Scale Waste-to-Energy Technologies. M.S. degree document of Columbia University New York, NY.

Energos (2016) Energos Technology. Available at: http://www.energos.com/energos-technology/the-process/ (accessed 11 November 2016).

10.

EPE (2014) Economicidade E Competitividade Do Aproveitamento Energético Dos Resíduos Sólidos Urbanos [Economic Viability and Competitiveness of Energy Utilization from Municipal Solid Waste]. Rio de Janeiro, Brasil: Empresa de pesquisa energética.

11.

Eunomia and Arcadis (2009) Bio-waste in the European Union Annex: Approach to estimating costs. Final report. Environment. Bristol, UK; Deurne, Belgium.

12.

F-Chart (2016) EES software. Available at: http://www.fchart.com/ees/ (accessed 11 November 2016).

13.

Feam (2012) Aproveitamento Energético de Resíduos Sólidos Urbanos: Guia de Orientações Para Governos Municipais de Minas Gerais [Energy Development of Urban Solid Waste: Guidance for Guidelines for Municipal Goverments of Minas Gerais]. Belo Horizonte, Brasil: Fundação Estadual do Meio Ambiente.

14.

Gendebien

Leavens

Blackmore

et al (2003) Refuse-Derived Fuel, Current Practice and Perspectives. Current Practice. Wiltshire, UK.

15.

Global Rates (2017) HICP Index. Available at: http://www.global-rates.com/economic-indicators/inflation/inflation-information.aspx (accessed 7 January 2017).

16.

Kaplan

DeCarolis

Thorneloe

(2009) Is it better to burn or bury waste for clean electricity generation? Environmental Science & Technology 43(6): 1711–1717.

17.

Lai

(2007) Waste-to-Energy Boilers and Waste Incinerators. In: ASM International (ed) High-Temperature Corrosion And Materials Applications. pp. 335–358. Available at: www.asminternational.org

18.

Leme

Rocha

Lora

et al (2014) Techno-economic analysis and environmental impact assessment of energy recovery from municipal solid waste (MSW) in Brazil. Resources, Conservation and Recycling 87(June): 8–20.

19.

Grace

Lim

et al (2004) Biomass gasification in a circulating fluidized bed. Biomass and Bioenergy 26(2): 171–193.

20.

Lino

FAM

Ismail

KAR

(2013) Alternative treatments for the municipal solid waste and domestic sewage in Campinas, Brazil. Resources, Conservation and Recycling 81: 24–30.

21.

Luz

Rocha

Lora

et al (2015) Techno-economic analysis of municipal solid waste gasification for electricity generation in Brazil. Energy Conversion and Management 103 (October): 321–337.

22.

Medina

(2016) Análise Técnico Econômica Do Processo de Gaseificação de Resíduo Sólido Urbano Para a Geração de Energia Elétrica. UFABC. Santo André, Brasil.

23.

Milutinovic

Stefanovic

Kyoseva

et al (2016) Sustainability assessment and comparison of waste management systems: The cities of Sofia and Niš case studies. Waste Management & Research 34(9): 896–904.

24.

Nakamura

(2008) Mathematical and Physical Modeling of Mixing and Flow Phenomena of Municipal Solid Waste Particles on a Reverse Acting Grate. PhD. degree document of Columbia University New York, NY.

25.

Nordi

(2014) Avaliação Técnico-Econômica de Usinas WTE [Waste to Energy] Baseada Em Ciclos de Potência a Vapor. UFABC. Santo André, Brasil.

26.

Pellegrini

Oliveira

(2007) Exergy analysis of sugarcane bagasse gasification. Energy 32(4): 314–327.

27.

Rayaprolu

(2009) Boilers for power and process. Available at: https://books.google.com.br/books?id=unGSfNa8wocC&pg=PR47&lpg=PR47&dq=kumar+boiler&source=bl&ots=tN6zPNWynS&sig=FxoJI7qO2UPyPjLMIpOIYYJFIO4&hl=es&sa=X&ved=0ahUKEwjzk_b5hPPSAhXJjZAKHWgqBc4Q6AEITzAJ#v=onepage&q=excess&f=false (accessed 26 November 2016).

28.

Scarlat

Motola

Dallemand

et al (2015) Evaluation of energy potential of municipal solid waste from African urban areas. Renewable and Sustainable Energy Reviews 50(October): 1269–1286.

29.

SEMASA (2008) Caracterização Gravimétrica Dos Resíduos Sólidos Urbanos Domiciliares Do Município de Santo André [Gravimetric Characterization of Municipal Solid Waste in Santo André]. Santo André, Brasil.

30.

Smith

Van Ness

Abbott

(2005) Introduction to Chemical Engineering Thermodynamics. 7th ed. West Sussex, England: McGraw-Hill’s, John Wiley & Sons Ltd.

31.

Stein

Tobiasen

(2004) Review of small scale waste to energy conversion systems. IEA Bioenergy Agreement Task 36. Available at: http://www.ieabioenergy.com/.

32.

Themelis

(2003) An overview of the global waste-to-energy industry. Management World, (July–August): 40–47.

33.

Thermoflex (2016) Software: THERMOFLOW.INC. Available at: https://www.thermoflow.com/ (accessed 14 November 2016).

34.

Tsilemou

Panagiotakopoulos

(2006) Approximate cost functions for solid waste treatment facilities. Waste Management & Research 24(4): 310–322.

35.

Wenchao

Hoffmann

Schirmer

et al . (2010) Chlorine characterization and thermal behavior in MSW and RDF. Journal of Hazardous Materials 178 (1–3): 489–498.

36.

Zaman

(2010) Comparative study of municipal solid waste treatment technologies using life cycle assessment method. International Journal of Environmental Science & Technology 7(2): 225–234.