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Economic evaluation of thermochemical conversion of municipal solid waste to syngas: a case study of Cape Town municipality

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Abstract

Thermochemical conversions of the combustible components of municipal solid waste (MSW) minimize the emissions and net effects of greenhouse gas from open incineration, landfill and other associated challenges of traditional MSW management. The thermochemical conversions such as incineration, pyrolysis, and gasification offer a cleaner approach to waste-to-energy/chemical for sustainable MSW management but cost implications are of research interest. Aspen Plus® Model was used to simulate the gasification processes to produce hydrogen-rich syngas from pre-treated MSW. The economic analysis of the system was examined. The economic indices considered were total capital costs (TCC), working capital and operating cost to evaluate the performance of the system. The results of quantitative economic evaluation measurements were net return (NR) of $0.20 million, a rate of return on investment (ROI) of 27.88%, payback time (PBP) of 2.30 years, a net present value (NPV) of $1.11 million and a discounted cash flow rate of return (DCFROR) of 24.80% and 28.20%, respectively. The results of the economic evaluations revealed that some findings of the economic benefits of the thermochemical system selected would be viable if the costs of handling MSW were considered and quantified into the cost analysis.

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The datasets generated during the study are available from the corresponding author on reasonable request.

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  1. Department of Chemical Engineering, Faculty of Engineering and Built Environment, Durban University of Technology, Steve Biko Campus, Durban, 4001, South Africa

    Yusuf Makarfi Isa

  2. Department of Chemical Engineering, Faculty of Engineering and Built Environment, Cape Peninsula University of Technology, Cape Town, 8000, South Africa

    Ismail Babatunde Adefeso & Daniel I. Ikhu-Omoregbe

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Adefeso, I.B., Ikhu-Omoregbe, D.I. & Isa, Y.M. Economic evaluation of thermochemical conversion of municipal solid waste to syngas: a case study of Cape Town municipality. J Mater Cycles Waste Manag 25, 1179–1190 (2023). https://doi.org/10.1007/s10163-022-01548-w

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  • DOI: https://doi.org/10.1007/s10163-022-01548-w

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