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Use of a two-chamber reactor to improve enzymatic hydrolysis and fermentation of lignocellulosic materials

Author

Listed:
  • Viola, E.
  • Zimbardi, F.
  • Valerio, V.
  • Nanna, F.
  • Battafarano, A.

Abstract

A special type of bioreactor was designed and tested in order to improve the bioethanol production from lignocellulosic materials via enzymatic hydrolysis and fermentation. The reactor consists of two chambers kept at different temperatures and separated by a porous medium, through which the solutes can diffuse. The reactor was tested using as substrate wheat straw previously steam exploded and detoxified. The yields of cellulose hydrolysis and glucose fermentation obtained using this reactor were compared to those obtained by simultaneous enzymatic hydrolysis and fermentation (SSF) carried out in only one vessel. The results showed that a significant increase in the ethanol yield (20%) can be achieved by using this bioreactor. An additional advantage of the reactor is the confinement of the solid lignin in one chamber, allowing a simplified separation process between broth and unreacted residue.

Suggested Citation

  • Viola, E. & Zimbardi, F. & Valerio, V. & Nanna, F. & Battafarano, A., 2013. "Use of a two-chamber reactor to improve enzymatic hydrolysis and fermentation of lignocellulosic materials," Applied Energy, Elsevier, vol. 102(C), pages 198-203.
    • Handle: RePEc:eee:appene:v:102:y:2013:i:c:p:198-203
    DOI: 10.1016/j.apenergy.2012.04.044
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    Cited by:

    1. Lin, Yu-Sheng & Lee, Wen-Chien & Duan, Kow-Jen & Lin, Yen-Han, 2013. "Ethanol production by simultaneous saccharification and fermentation in rotary drum reactor using thermotolerant Kluveromyces marxianus," Applied Energy, Elsevier, vol. 105(C), pages 389-394.
    2. Zhu, Ming-Qiang & Wen, Jia-Long & Wang, Zhi-Wen & Su, Yin-Quan & Wei, Qin & Sun, Run-Cang, 2015. "Structural changes in lignin during integrated process of steam explosion followed by alkaline hydrogen peroxide of Eucommia ulmoides Oliver and its effect on enzymatic hydrolysis," Applied Energy, Elsevier, vol. 158(C), pages 233-242.
    3. De Corato, Ugo & De Bari, Isabella & Viola, Egidio & Pugliese, Massimo, 2018. "Assessing the main opportunities of integrated biorefining from agro-bioenergy co/by-products and agroindustrial residues into high-value added products associated to some emerging markets: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 88(C), pages 326-346.
    4. Arora, Richa & Behera, Shuvashish & Kumar, Sachin, 2015. "Bioprospecting thermophilic/thermotolerant microbes for production of lignocellulosic ethanol: A future perspective," Renewable and Sustainable Energy Reviews, Elsevier, vol. 51(C), pages 699-717.

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