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A comparison of power generation and ethanol production using sugarcane bagasse from the perspective of mitigating GHG emissions

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  • Sun, Xiao-Zheng
  • Fujimoto, Shinji
  • Minowa, Tomoaki

Abstract

The mitigation of greenhouse gas (GHG) emissions from power generation and two ethanol production options from sugarcane bagasse were compared at grid emission factors ranging from 0.0 to 1.0kg of carbon dioxide (CO2) equivalent per kWh. The first ethanol production method (EP 1) directly purchased electricity and steam from the grid and the factory, and the second ethanol production method (EP 2) derived the required electricity and steam from the cogeneration system using the sugarcane bagasse as boiler fuel. Data pertaining to GHG emissions from power generation were collected from published studies. A process for ethanol production from sugarcane bagasse was designed, and a simulator was developed to generate the process data using Microsoft Excel. Results show that power generation is the preferential option when the grid emission factors are higher than 0.45kgCO2eq/kWh. The EP 1 was advantageous in mitigating the GHG emissions when the grid emission factors were lower than 0.19kgCO2eq/kWh, and the EP 2 might be the most environmentally beneficial when the grid emission factors were between 0.19 and 0.45kgCO2eq/kWh. It is hoped that these results could be helpful in determining how to best utilize sugarcane bagasse.

Suggested Citation

  • Sun, Xiao-Zheng & Fujimoto, Shinji & Minowa, Tomoaki, 2013. "A comparison of power generation and ethanol production using sugarcane bagasse from the perspective of mitigating GHG emissions," Energy Policy, Elsevier, vol. 57(C), pages 624-629.
    • Handle: RePEc:eee:enepol:v:57:y:2013:i:c:p:624-629
    DOI: 10.1016/j.enpol.2013.02.020
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    References listed on IDEAS

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    1. Botha, Tyron & von Blottnitz, Harro, 2006. "A comparison of the environmental benefits of bagasse-derived electricity and fuel ethanol on a life-cycle basis," Energy Policy, Elsevier, vol. 34(17), pages 2654-2661, November.
    2. Seabra, Joaquim E.A. & Macedo, Isaias C., 2011. "Comparative analysis for power generation and ethanol production from sugarcane residual biomass in Brazil," Energy Policy, Elsevier, vol. 39(1), pages 421-428, January.
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    1. Bechara, Rami & Gomez, Adrien & Saint-Antonin, Valérie & Schweitzer, Jean-Marc & Maréchal, François, 2016. "Methodology for the design and comparison of optimal production configurations of first and first and second generation ethanol with power," Applied Energy, Elsevier, vol. 184(C), pages 247-265.
    2. Khoo, Hsien H. & Wong, Loretta L. & Tan, Jonathan & Isoni, Valerio & Sharratt, Paul, 2015. "Synthesis of 2-methyl tetrahydrofuran from various lignocellulosic feedstocks: Sustainability assessment via LCA," Resources, Conservation & Recycling, Elsevier, vol. 95(C), pages 174-182.
    3. A. Khoodaruth, 2016. "Contribution of the sugar cane industry to reduce carbon dioxide emissions in the energy sector: the case of Mauritius," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 18(6), pages 1719-1731, December.
    4. Khoo, Hsien H., 2015. "Review of bio-conversion pathways of lignocellulose-to-ethanol: Sustainability assessment based on land footprint projections," Renewable and Sustainable Energy Reviews, Elsevier, vol. 46(C), pages 100-119.

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