Effects of Gasifying Agents on the Characterization of Nut Shell-derived Activated Carbon

Activated carbon was prepared from nut shells using a conventional two-stage method: carbonization followed by activation. Activation with steam or carbon dioxide as activating agent produced a range of chars of different burn-off. These were characterized for their total and micropore surface areas...

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Main Authors: C. Nguyen, A. Ahmadpour, D.D. Do
Format: Article
Language:English
Published: SAGE Publications 1995-09-01
Series:Adsorption Science & Technology
Online Access:https://doi.org/10.1177/026361749501200309
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author C. Nguyen
A. Ahmadpour
D.D. Do
author_facet C. Nguyen
A. Ahmadpour
D.D. Do
author_sort C. Nguyen
collection DOAJ
description Activated carbon was prepared from nut shells using a conventional two-stage method: carbonization followed by activation. Activation with steam or carbon dioxide as activating agent produced a range of chars of different burn-off. These were characterized for their total and micropore surface areas, and benzene adsorption capacity. Benzene adsorption measurement provided an insight into the effect of porosity development on the adsorptive properties of the adsorbent. It was found that activated carbon products from nut shells were comparable, in terms of adsorption characteristics, with activated carbons from other lignocellulosic precursors. The evolution of porosity of the resulting carbons shows that carbon dioxide is the preferable agent for the production of activated carbon with a narrow micropore size distribution.
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spelling doaj.art-0f10b7f58f6443d38496670367f52acf2024-03-02T19:16:31ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40381995-09-011210.1177/026361749501200309Effects of Gasifying Agents on the Characterization of Nut Shell-derived Activated CarbonC. Nguyen0A. Ahmadpour1D.D. Do2Department of Chemical Engineering, University of Queensland, Qld 4072, Australia.Department of Chemical Engineering, University of Queensland, Qld 4072, Australia.Department of Chemical Engineering, University of Queensland, Qld 4072, Australia.Activated carbon was prepared from nut shells using a conventional two-stage method: carbonization followed by activation. Activation with steam or carbon dioxide as activating agent produced a range of chars of different burn-off. These were characterized for their total and micropore surface areas, and benzene adsorption capacity. Benzene adsorption measurement provided an insight into the effect of porosity development on the adsorptive properties of the adsorbent. It was found that activated carbon products from nut shells were comparable, in terms of adsorption characteristics, with activated carbons from other lignocellulosic precursors. The evolution of porosity of the resulting carbons shows that carbon dioxide is the preferable agent for the production of activated carbon with a narrow micropore size distribution.https://doi.org/10.1177/026361749501200309
spellingShingle C. Nguyen
A. Ahmadpour
D.D. Do
Effects of Gasifying Agents on the Characterization of Nut Shell-derived Activated Carbon
Adsorption Science & Technology
title Effects of Gasifying Agents on the Characterization of Nut Shell-derived Activated Carbon
title_full Effects of Gasifying Agents on the Characterization of Nut Shell-derived Activated Carbon
title_fullStr Effects of Gasifying Agents on the Characterization of Nut Shell-derived Activated Carbon
title_full_unstemmed Effects of Gasifying Agents on the Characterization of Nut Shell-derived Activated Carbon
title_short Effects of Gasifying Agents on the Characterization of Nut Shell-derived Activated Carbon
title_sort effects of gasifying agents on the characterization of nut shell derived activated carbon
url https://doi.org/10.1177/026361749501200309
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