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Bioconversion of switchgrass: Identification of a leading pretreatment option based on yield, cost and environmental impact

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  • Smullen, Emma
  • Finnan, John
  • Dowling, David
  • Mulcahy, Patricia

Abstract

Switchgrass (Panicum virgatum L) is considered to be one of the best feedstocks for second generation ethanol production. However, its use as a biofuel resource for the ethanol market is challenged by high investment costs and inconsistent production methodologies. This study explores the use of switchgrass as a potential feedstock for ethanol production, investigating the effects of different pretreatment chemicals – sodium hydroxide, methanol, sulphuric acid and ammonia – employed at various concentrations of 0.5, 1 and 2 mol L−1 on conversion yields, while also minimising cost and assessing potential environmental impacts.

Suggested Citation

  • Smullen, Emma & Finnan, John & Dowling, David & Mulcahy, Patricia, 2017. "Bioconversion of switchgrass: Identification of a leading pretreatment option based on yield, cost and environmental impact," Renewable Energy, Elsevier, vol. 111(C), pages 638-645.
    • Handle: RePEc:eee:renene:v:111:y:2017:i:c:p:638-645
    DOI: 10.1016/j.renene.2017.04.059
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    Citations

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    Cited by:

    1. Smullen, Emma & Finnan, John & Dowling, David & Mulcahy, Patricia, 2019. "The environmental performance of pretreatment technologies for the bioconversion of lignocellulosic biomass to ethanol," Renewable Energy, Elsevier, vol. 142(C), pages 527-534.
    2. Rosen, Yan & Mamane, Hadas & Gerchman, Yoram, 2021. "Immersed ozonation of agro-wastes as an effective pretreatment method in bioethanol production," Renewable Energy, Elsevier, vol. 174(C), pages 382-390.
    3. George Dimitrellos & Gerasimos Lyberatos & Georgia Antonopoulou, 2020. "Does Acid Addition Improve Liquid Hot Water Pretreatment of Lignocellulosic Biomass towards Biohydrogen and Biogas Production?," Sustainability, MDPI, vol. 12(21), pages 1-14, October.
    4. Vasconcelos, Marcelo Holanda & Mendes, Fernanda Machado & Ramos, Lucas & Dias, Marina Oliveira S. & Bonomi, Antonio & Jesus, Charles Dayan F. & Watanabe, Marcos Djun B. & Junqueira, Tassia Lopes & Mil, 2020. "Techno-economic assessment of bioenergy and biofuel production in integrated sugarcane biorefinery: Identification of technological bottlenecks and economic feasibility of dilute acid pretreatment," Energy, Elsevier, vol. 199(C).
    5. Wu, Haitang & Zheng, Jilu & Wang, Guoqiang, 2019. "Catalytic liquefaction of switchgrass in isobutanol/water system for bio-oil development over bifunctional Ni-HPMo/Fe3O4@Al-MCM-41 catalysts," Renewable Energy, Elsevier, vol. 141(C), pages 96-106.

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