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Low temperature ionic liquid pretreatment of lignocellulosic biomass to enhance bioethanol yield

Author

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  • Alayoubi, Ranim
  • Mehmood, Nasir
  • Husson, Eric
  • Kouzayha, Achraf
  • Tabcheh, Mohamad
  • Chaveriat, Ludovic
  • Sarazin, Catherine
  • Gosselin, Isabelle

Abstract

Among pretreatments existing to overcome the recalcitrance of the lignocellulosic biomass, imidazolium-based ionic liquids (ILs) are gaining interest to make cellulose more accessible to hydrolytic enzymes and generate fermentable sugars that are finally converted into ethanol by microbial fermentation. However, these pretreatments are usually implemented at a temperature between 80 °C and 160 °C raising realistically an energy demand problem. Here, we present an eco-friendly pretreatment strategy using the 1-ethyl-3-methylimidazolium acetate [Emim][OAc] IL at 45 °C. This energy efficient method was studied on three substrates: a model cellulose and two industrial forest residues, spruce and oak sawdusts. The viscosity of the three samples in [Emim][OAc] were followed depending on the temperature. The structures of the pretreated substrates were analyzed by scanning electron microscopy and by Fourier transform infrared spectra. Then the pretreated samples were submitted to enzymatic hydrolysis catalyzed by cellulases from Trichoderma reesei and to ethanolic fermentation by the yeast Saccharomyces cerevisiae. The ethanolic yields obtained from (ligno)cellulosic substrates were 2.6–3.9 times higher after the soft pretreatment with [Emim][OAc]. Thus, [Emim][OAc]-pretreatment at low temperature is a promising gentle method for LCB valorization into biofuels.

Suggested Citation

  • Alayoubi, Ranim & Mehmood, Nasir & Husson, Eric & Kouzayha, Achraf & Tabcheh, Mohamad & Chaveriat, Ludovic & Sarazin, Catherine & Gosselin, Isabelle, 2020. "Low temperature ionic liquid pretreatment of lignocellulosic biomass to enhance bioethanol yield," Renewable Energy, Elsevier, vol. 145(C), pages 1808-1816.
    • Handle: RePEc:eee:renene:v:145:y:2020:i:c:p:1808-1816
    DOI: 10.1016/j.renene.2019.07.091
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    Cited by:

    1. Sikiru, Surajudeen & Abioye, Kunmi Joshua & Adedayo, Habeeb Bolaji & Adebukola, Sikiru Yesirat & Soleimani, Hassan & Anar, M., 2024. "Technology projection in biofuel production using agricultural waste materials as a source of energy sustainability: A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 200(C).
    2. Wang, Peng & Su, Yan & Tang, Wei & Huang, Caoxing & Lai, Chenhuan & Ling, Zhe & Yong, Qiang, 2022. "Revealing enzymatic digestibility of kraft pretreated larch based on a comprehensive analysis of substrate-related factors," Renewable Energy, Elsevier, vol. 199(C), pages 1461-1468.
    3. Aghili Mehrizi, Amirreza & Tangestaninejad, Shahram & Denayer, Joeri F.M. & Karimi, Keikhosro & Shafiei, Marzieh, 2023. "The critical impacts of anion and cosolvent on morpholinium ionic liquid pretreatment for efficient renewable energy production from triticale straw," Renewable Energy, Elsevier, vol. 202(C), pages 686-698.
    4. Chen, Chao & Liang, Rui & Ge, Yadong & Li, Jian & Yan, Beibei & Cheng, Zhanjun & Tao, Junyu & Wang, Zhenyu & Li, Meng & Chen, Guanyi, 2022. "Fast characterization of biomass pyrolysis oil via combination of ATR-FTIR and machine learning models," Renewable Energy, Elsevier, vol. 194(C), pages 220-231.
    5. Lv, Yanting & Chen, Zhengyu & Wang, Huan & Xiao, Yongcang & Ling, Rongxin & Gong, Murong & Wei, Weiqi, 2022. "Enhancement of glucose production from sugarcane bagasse through an HCl-catalyzed ethylene glycol pretreatment and Tween 80," Renewable Energy, Elsevier, vol. 194(C), pages 495-503.
    6. Tae Hoon Kim & Seung Hyeon Park & Tin Diep Trung Le & Tae Hyun Kim & Kyeong Keun Oh, 2022. "Effects of Colloid Milling and Hot-Water Pretreatment on Physical Properties and Enzymatic Digestibility of Oak Wood," Energies, MDPI, vol. 15(6), pages 1-15, March.
    7. Li, Chao & Zhang, Chenting & Sun, Kai & Zhang, Zhanming & Zhang, Lijun & Zhang, Shu & Liu, Qing & Hu, Guangzhi & Wang, Shuang & Hu, Xun, 2020. "Pyrolysis of saw dust with co-feeding of methanol," Renewable Energy, Elsevier, vol. 160(C), pages 1023-1035.

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