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

Silvia Román, Beatriz Ledesma, Andrés Álvarez-Murillo, Awf Al-Kassir and Talal Yusaf
Additional contact information
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

Energies, 2017, vol. 10, issue 4, 1-11

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.

Keywords: activated carbon; biomass; lignocellulosic composition (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.mdpi.com/1996-1073/10/4/542/pdf (application/pdf)
https://www.mdpi.com/1996-1073/10/4/542/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:10:y:2017:i:4:p:542-:d:95923

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().