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

Roman, Silvia and Ledesma, Beatriz and Alvarez-Murillo, Andres and Al-Kassir, Awf and Yusaf, Talal (2017) Dependence of the Microporosity of Activated Carbons on the Lignocellulosic Composition of the Precursors. Energies, 10 (4):542. pp. 1-11.

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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 m2 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.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Historic - National Centre for Engineering in Agriculture (NCEA) (1 Jul 2013 - 31 Jul 2018)
Faculty/School / Institute/Centre: Historic - National Centre for Engineering in Agriculture (NCEA) (1 Jul 2013 - 31 Jul 2018)
Date Deposited: 07 Jun 2022 02:14
Last Modified: 07 Jun 2022 05:31
Uncontrolled Keywords: activated carbon; biomass; lignocellulosic composition
Fields of Research (2008): 09 Engineering > 0913 Mechanical Engineering > 091305 Energy Generation, Conversion and Storage Engineering
09 Engineering > 0904 Chemical Engineering > 090405 Non-automotive Combustion and Fuel Engineering (incl. Alternative/Renewable Fuels)
09 Engineering > 0902 Automotive Engineering > 090201 Automotive Combustion and Fuel Engineering (incl. Alternative/Renewable Fuels)
Fields of Research (2020): 40 ENGINEERING > 4017 Mechanical engineering > 401703 Energy generation, conversion and storage (excl. chemical and electrical)
40 ENGINEERING > 4004 Chemical engineering > 400402 Chemical and thermal processes in energy and combustion
40 ENGINEERING > 4002 Automotive engineering > 400201 Automotive combustion and fuel engineering
Identification Number or DOI: https://doi.org/10.3390/en10040542
URI: http://eprints.usq.edu.au/id/eprint/48730

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