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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/14805

Title: Characterization of activated carbons derived from short rotation hardwood pyrolysis char
Authors: Stals, Mark
Vandewijngaarden, Jens
Wróbel-Iwaniec, Iwona
Gryglewicz, Grazyna
Carleer, Robert
Schreurs, Sonja
Yperman, Jan
Issue Date: 2013
Abstract: Chars from fast and flash pyrolysis of different short rotation hardwoods are activated by steam or KOH, resulting in a variety of activated carbons (ACs). Analysis of nitrogen adsorption isotherm shows that microporous ACs are obtained. Density functional theory calculation is applied to obtain information concerning the micropore size distribution. Additionally, methylene blue (MB) and iodine adsorption experiments are performed to evaluate the AC adsoprtive properties. The textural and absorptive properties are compared with a commercial AC (Norit). KOH activation yields ACs with very high surface area, micropore volume and adsorption capacity, while steam activation promotes formation of narrower micropores but yields less pore volume. The MB adsorption kinetics can be described by the pseudo-second-order model, and most ACs adsorb at least 70% of their maximum MB absorption capacity within 15 min.
Notes: Reprint Address: Yperman, J (reprint author) - Hasselt Univ, CMK, Res Grp Appl & Analyt Chem, Agoralaan Gebouw D, B-3590 Diepenbeek, Belgium. E-mail Addresses:jan.yperman@uhasselt.be
URI: http://hdl.handle.net/1942/14805
DOI: 10.1016/j.jaap.2013.01.009
ISI #: 000318380800025
ISSN: 0165-2370
Category: A1
Type: Journal Contribution
Validation: ecoom, 2014
Appears in Collections: Research publications

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