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Selective conversion of starch to glucose using carbon based solid acid catalyst

Author

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  • Kumar, Vijay Bhooshan
  • Pulidindi, Indra Neel
  • Gedanken, Aharon

Abstract

Activated carbon supported silicotungstic acid is used as catalyst for the hydrolysis of starch to glucose. The selectivity of the hydrothermal process for glucose production is demonstrated. Byproducts such as levulinic and formic acids are not formed. Separation of the catalyst is easy, and the catalyst reusability is demonstrated in five consecutive reaction runs. No appreciable loss in activity and selectivity of the catalyst is observed even after 5 consecutive reaction runs. Leaching of the heteropoly acid into the reaction medium is not observed. The yield of glucose (94 wt. %) is close to the theoretical yield (111 wt. %) possible from starch. Thus the glucose production process is atom efficient and green.

Suggested Citation

  • Kumar, Vijay Bhooshan & Pulidindi, Indra Neel & Gedanken, Aharon, 2015. "Selective conversion of starch to glucose using carbon based solid acid catalyst," Renewable Energy, Elsevier, vol. 78(C), pages 141-145.
    • Handle: RePEc:eee:renene:v:78:y:2015:i:c:p:141-145
    DOI: 10.1016/j.renene.2014.12.070
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    References listed on IDEAS

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    1. Pulidindi, Indra Neel & Kimchi, Baruchi B. & Gedanken, Aharon, 2014. "Can cellulose be a sustainable feedstock for bioethanol production?," Renewable Energy, Elsevier, vol. 71(C), pages 77-80.
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    Cited by:

    1. Tian, Hongli & Shao, Yuewen & Liang, Chuanfei & Xu, Qing & Zhang, Lijun & Zhang, Shu & Liu, Shuhua & Hu, Xun, 2020. "Sulfated attapulgite for catalyzing the conversion of furfuryl alcohol to ethyl levulinate: Impacts of sulfonation on structural transformation and evolution of acidic sites on the catalyst," Renewable Energy, Elsevier, vol. 162(C), pages 1576-1586.
    2. Dookheh, Maryam & Najafi Chermahini, Alireza, 2023. "Surface modified mesoporous KIT-5: A catalytic approach to obtain butyl levulinate from starch," Renewable Energy, Elsevier, vol. 211(C), pages 227-235.
    3. Nayak, Abhishek & Pulidindi, Indra Neel & Rao, Chinta Sankar, 2020. "Novel strategies for glucose production from biomass using heteropoly acid catalyst," Renewable Energy, Elsevier, vol. 159(C), pages 215-220.

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