IDEAS home Printed from https://ideas.repec.org/a/eee/appene/v159y2015icp188-195.html
   My bibliography  Save this article

Continuous recycling of enzymes during production of lignocellulosic bioethanol in demonstration scale

Author

Listed:
  • Haven, Mai Østergaard
  • Lindedam, Jane
  • Jeppesen, Martin Dan
  • Elleskov, Michael
  • Rodrigues, Ana Cristina
  • Gama, Miguel
  • Jørgensen, Henning
  • Felby, Claus

Abstract

Recycling of enzymes in production of lignocellulosic bioethanol has been tried for more than 30years. So far, the successes have been few and the experiments have been carried out at conditions far from those in an industrially feasible process. Here we have tested continuous enzyme recycling at demonstration scale using industrial process conditions (high dry matter content and low enzyme dosage) for a period of eight days. The experiment was performed at the Inbicon demonstration plant (Kalundborg, Denmark) capable of converting four tonnes of wheat straw per hour. 20% of the fermentation broth was recycled to the hydrolysis reactor while enzyme dosage was reduced by 5%. The results demonstrate that recycling enzymes by this method can reduce overall enzyme consumption and may also increase the ethanol concentrations in the fermentation broth. Our results further show that recycling fermentation broth also opens up the possibility of lowering the dry matter content in hydrolysis and fermentation while still maintaining high ethanol concentrations.

Suggested Citation

  • Haven, Mai Østergaard & Lindedam, Jane & Jeppesen, Martin Dan & Elleskov, Michael & Rodrigues, Ana Cristina & Gama, Miguel & Jørgensen, Henning & Felby, Claus, 2015. "Continuous recycling of enzymes during production of lignocellulosic bioethanol in demonstration scale," Applied Energy, Elsevier, vol. 159(C), pages 188-195.
    • Handle: RePEc:eee:appene:v:159:y:2015:i:c:p:188-195
    DOI: 10.1016/j.apenergy.2015.08.062
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0306261915009988
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.apenergy.2015.08.062?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Chen, Jiaxin & Zhang, Biying & Luo, Lingli & Zhang, Fan & Yi, Yanglei & Shan, Yuanyuan & Liu, Bianfang & Zhou, Yuan & Wang, Xin & Lü, Xin, 2021. "A review on recycling techniques for bioethanol production from lignocellulosic biomass," Renewable and Sustainable Energy Reviews, Elsevier, vol. 149(C).
    2. Mesa, Leyanis & Martínez, Yenisleidy & Barrio, Edenny & González, Erenio, 2017. "Desirability function for optimization of Dilute Acid pretreatment of sugarcane straw for ethanol production and preliminary economic analysis based in three fermentation configurations," Applied Energy, Elsevier, vol. 198(C), pages 299-311.
    3. Byun, Jaewon & Han, Jeehoon, 2016. "Process synthesis and analysis for catalytic conversion of lignocellulosic biomass to fuels: Separate conversion of cellulose and hemicellulose using 2-sec-butylphenol (SBP) solvent," Applied Energy, Elsevier, vol. 171(C), pages 483-490.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:appene:v:159:y:2015:i:c:p:188-195. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/description#description .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.