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Enzymatic production of biodiesel from used/waste vegetable oils: Design of a pilot plant

Author

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  • Al-Zuhair, Sulaiman
  • Almenhali, Asma
  • Hamad, Iman
  • Alshehhi, Maryam
  • Alsuwaidi, Noura
  • Mohamed, Suaad

Abstract

In this work, a proposed pilot plant has been designed to produce 1tonh−1 biodiesel (BD) from waste/used vegetable oil using enzymatic approach. Complete material and energy balances were carried out using Excel spreadsheets, and detailed equipment sizing were determined. Immobilized lipase (Novozyme 435) is used as a catalyst in a packed bed bioreactor. The effluent of the reactor is passed though a Liquid–liquid extractor to separate the BD from other components. This is followed by a flash dram and a vacuum distillation column for further purification of the product. In addition, an economic feasibility of this process was assessed. The amount of feed streams of waste oil, methanol and tert-butanol required were found to be 1138, 130 and 7.6kgh−1, respectively. The main units in the proposed plant were designed and the economic feasibility of the process was assessed. It was found that the total capital investment required is about US$ 620,000, which will be paid back within four years of operation.

Suggested Citation

  • Al-Zuhair, Sulaiman & Almenhali, Asma & Hamad, Iman & Alshehhi, Maryam & Alsuwaidi, Noura & Mohamed, Suaad, 2011. "Enzymatic production of biodiesel from used/waste vegetable oils: Design of a pilot plant," Renewable Energy, Elsevier, vol. 36(10), pages 2605-2614.
    • Handle: RePEc:eee:renene:v:36:y:2011:i:10:p:2605-2614
    DOI: 10.1016/j.renene.2010.05.010
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    Cited by:

    1. Mondal, Subha & De, Sudipta, 2017. "Power by waste heat recovery from low temperature industrial flue gas by Organic Flash Cycle (OFC) and transcritical-CO2 power cycle: A comparative study through combined thermodynamic and economic an," Energy, Elsevier, vol. 121(C), pages 832-840.
    2. Dutra, Luciana da Silva & Costa Cerqueira Pinto, Martina & Cipolatti, Eliane Pereira & Aguieiras, Erika Cristina G. & Manoel, Evelin Andrade & Greco-Duarte, Jaqueline & Guimarães Freire, Denise Maria , 2022. "How the biodiesel from immobilized enzymes production is going on: An advanced bibliometric evaluation of global research," Renewable and Sustainable Energy Reviews, Elsevier, vol. 153(C).
    3. Talebian-Kiakalaieh, Amin & Amin, Nor Aishah Saidina & Mazaheri, Hossein, 2013. "A review on novel processes of biodiesel production from waste cooking oil," Applied Energy, Elsevier, vol. 104(C), pages 683-710.
    4. Zhao, Xuebing & Qi, Feng & Yuan, Chongli & Du, Wei & Liu, Dehua, 2015. "Lipase-catalyzed process for biodiesel production: Enzyme immobilization, process simulation and optimization," Renewable and Sustainable Energy Reviews, Elsevier, vol. 44(C), pages 182-197.

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