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Pyrolysis of Amaranth Inflorescence Wastes: Bioenergy Potential, Biochar and Hydrocarbon Rich Bio-Oil Production

Author

Listed:
  • Julia Karaeva

    (Institute of Power Engineering and Advanced Technologies, FRC Kazan Scientific Center, Russian Academy of Sciences, 420111 Kazan, Russia)

  • Svetlana Timofeeva

    (Institute of Power Engineering and Advanced Technologies, FRC Kazan Scientific Center, Russian Academy of Sciences, 420111 Kazan, Russia)

  • Svetlana Islamova

    (Institute of Power Engineering and Advanced Technologies, FRC Kazan Scientific Center, Russian Academy of Sciences, 420111 Kazan, Russia)

  • Kseny Bulygina

    (A.E. Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 420088 Kazan, Russia)

  • Firdavs Aliev

    (Institute of Geology and Petroleum Technologies, Kazan Federal University, 420008 Kazan, Russia)

  • Vladimir Panchenko

    (Department of Theoretical and Applied Mechanics, Russian University of Transport, 127994 Moscow, Russia)

  • Vadim Bolshev

    (Laboratory of Power Supply and Heat Supply, Federal Scientific Agroengineering Center VIM, 109428 Moscow, Russia)

Abstract

Many agro-industrial companies grow amaranth for the subsequent production of amaranth oil, flour, cereals, flakes, and bran. After the grain is extracted, waste in the form of inflorescences remains, which can be used to obtain useful new products. This work investigated the use of pyrolysis to recycle amaranth inflorescence wastes (AIW). Thermochemical conversion experiments in an inert medium were carried out in a laboratory setup at 550 °C and a heating rate of 10 °C/min. It was found that the AIW pyrolysis produced 37.1 wt.% bio-oil, 35.8 wt.% pyrogas and 27.1 wt.% biochar. The oil fraction of the obtained bio-oil contains 41.8% of hydrocarbons. Thermogravimetric analysis of AIW was performed in the temperature range from 40 to 1000 °C at heating rates of 10, 15, and 20 °C/min in argon medium (75 mL/min). The kinetic parameters were determined by the model-free Friedman, Ozawa-Flynn-Wall, and Kissinger-Akahira-Sunose methods. The average activation energy values are in the range of 208.44–216.17 kJ/mol, and they were used to calculate the thermodynamic parameters. The results indicate that the pyrolysis application will allow efficient conversion of AIW into value-added products.

Suggested Citation

  • Julia Karaeva & Svetlana Timofeeva & Svetlana Islamova & Kseny Bulygina & Firdavs Aliev & Vladimir Panchenko & Vadim Bolshev, 2023. "Pyrolysis of Amaranth Inflorescence Wastes: Bioenergy Potential, Biochar and Hydrocarbon Rich Bio-Oil Production," Agriculture, MDPI, vol. 13(2), pages 1-17, January.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:2:p:260-:d:1042992
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    Citations

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    Cited by:

    1. Svetlana Islamova & Anastasia Tartygasheva & Julia Karaeva & Vladimir Panchenko & Yuriy Litti, 2023. "A Comprehensive Study on the Combustion of Sunflower Husk Pellets by Thermogravimetric and Kinetic Analysis, Kriging Method," Agriculture, MDPI, vol. 13(4), pages 1-18, April.
    2. Julia Karaeva & Svetlana Timofeeva & Marat Gilfanov & Marina Slobozhaninova & Olga Sidorkina & Ekaterina Luchkina & Vladimir Panchenko & Vadim Bolshev, 2023. "Exploring the Prospective of Weed Amaranthus retroflexus for Biofuel Production through Pyrolysis," Agriculture, MDPI, vol. 13(3), pages 1-19, March.
    3. Vadim Bolshev & Vladimir Panchenko & Alexey Sibirev, 2023. "Engineering Innovations in Agriculture," Agriculture, MDPI, vol. 13(7), pages 1-4, June.

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