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Simulation of Olive Pomace Gasification for Hydrogen Production Using Aspen Plus: Case Study Lebanon

Author

Listed:
  • Georges Matta

    (Department of Chemical and Petroleum Engineering, School of Engineering, Holy Spirit University of Kaslik, Jounieh P.O. Box 446, Lebanon
    These authors contributed equally to this work.)

  • Daniella Semaan

    (Department of Chemical and Petroleum Engineering, School of Engineering, Holy Spirit University of Kaslik, Jounieh P.O. Box 446, Lebanon
    These authors contributed equally to this work.)

  • Rita Harb

    (Department of Chemical and Petroleum Engineering, School of Engineering, Holy Spirit University of Kaslik, Jounieh P.O. Box 446, Lebanon)

Abstract

Biomass is a renewable energy source gaining attention for its potential to replace fossil fuels. Biomass gasification can produce hydrogen-rich gas, offering an environmentally friendly fuel for power generation, transportation, and industry. Hydrogen is a promising energy carrier due to its high energy density, low greenhouse gas emissions, and versatility. This study aims to develop a hydrogen generation plant using a dual fluidized bed gasifier, which employs steam as a gasifying agent, to convert olive pomace waste from the Lebanese olive oil industry into hydrogen. The process is simulated using Aspen Plus and Fortran coding, and it includes a drying unit, gasification unit, gas cleaning unit, steam methane reformer unit, water–gas shift reactor unit, and a pressure swing adsorption unit. The generated gas composition is verified against previous research. Sensitivity analyses are conducted to investigate the impacts of the steam-to-biomass ratio (STBR) and gasification temperature on gas composition, demonstrating a valid STBR range of 0.5 to 1 and a reasonable gasification temperature range of 700 °C to 800 °C. Further sensitivity analyses assess the impact of reformer temperature and the steam-to-carbon ratio (S/C) on the gas composition leaving the steam methane reformer.

Suggested Citation

  • Georges Matta & Daniella Semaan & Rita Harb, 2024. "Simulation of Olive Pomace Gasification for Hydrogen Production Using Aspen Plus: Case Study Lebanon," Energies, MDPI, vol. 17(7), pages 1-26, March.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:7:p:1621-:d:1365769
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    References listed on IDEAS

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    1. Kinab, Elias & Khoury, Georges, 2015. "Management of olive solid waste in Lebanon: From mill to stove," Renewable and Sustainable Energy Reviews, Elsevier, vol. 52(C), pages 209-216.
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