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Dependence of the Microporosity of Activated Carbons on the Lignocellulosic Composition of the Precursors

Author

Listed:
  • Silvia Román

    (Department of Applied Physics, University of Extremadura (UEX), Avda. Elvas s/n, 06071 Badajoz, Spain)

  • Beatriz Ledesma

    (Department of Applied Physics, University of Extremadura (UEX), Avda. Elvas s/n, 06071 Badajoz, Spain)

  • Andrés Álvarez-Murillo

    (Department of Applied Physics, University of Extremadura (UEX), Avda. Elvas s/n, 06071 Badajoz, Spain)

  • Awf Al-Kassir

    (Department of Mechanical, Energetic and Materials Engineering, University of Extremadura (UEX), Avda. Elvas s/n, 06071 Badajoz, Spain)

  • Talal Yusaf

    (National Centre for Engineering in Agriculture, University of Southern Queensland (UQ), Brisbane, QLD 4350, Australia)

Abstract

A series of activated carbons were prepared by physical steam gasification under identical experimental conditions to compare the pore development from almond tree pruning chars and walnut shell activated carbons. The results obtained showed that steam gasification yields microporous carbons in both cases, and the rise in temperature causes an increase of the pore volumes of the activated carbons, up to a certain degree of burn-off. This effect was more marked for walnut shell, which gave rise to activated carbons with apparent surface values of up to 1434 m 2 g −1 . Also, a slight widening of porosity was found at low burn-off degrees. This pore widening was more marked in the case of activated carbons from almond tree pruning, which also have a high macropore volume. It was found that the lignocellulosic and porosity properties of the raw materials can cause this different behavior towards activation processes.

Suggested Citation

  • Silvia Román & Beatriz Ledesma & Andrés Álvarez-Murillo & Awf Al-Kassir & Talal Yusaf, 2017. "Dependence of the Microporosity of Activated Carbons on the Lignocellulosic Composition of the Precursors," Energies, MDPI, vol. 10(4), pages 1-11, April.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:4:p:542-:d:95923
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    Cited by:

    1. Imen Ghouma & Mejdi Jeguirim & Uta Sager & Lionel Limousy & Simona Bennici & Eckhard Däuber & Christof Asbach & Roman Ligotski & Frank Schmidt & Abdelmottaleb Ouederni, 2017. "The Potential of Activated Carbon Made of Agro-Industrial Residues in NO x Immissions Abatement," Energies, MDPI, vol. 10(10), pages 1-15, September.
    2. Deneb Peredo-Mancilla & Imen Ghouma & Cecile Hort & Camelia Matei Ghimbeu & Mejdi Jeguirim & David Bessieres, 2018. "CO 2 and CH 4 Adsorption Behavior of Biomass-Based Activated Carbons," Energies, MDPI, vol. 11(11), pages 1-13, November.
    3. Béchir Wanassi & Ichrak Ben Hariz & Camélia Matei Ghimbeu & Cyril Vaulot & Mejdi Jeguirim, 2017. "Green Carbon Composite-Derived Polymer Resin and Waste Cotton Fibers for the Removal of Alizarin Red S Dye," Energies, MDPI, vol. 10(9), pages 1-17, September.

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