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Advances in Materials Science and Engineering
Volume 2016, Article ID 5819208, 4 pages
http://dx.doi.org/10.1155/2016/5819208
Research Article

Preparation of Active Carbon by Additional Activation with Potassium Hydroxide and Characterization of Their Properties

Faculty of Energy and Fuels, AGH University of Science and Technology, Mickiewicz Avenue 30, 30-059 Cracow, Poland

Received 15 November 2015; Revised 8 January 2016; Accepted 10 January 2016

Academic Editor: Jainagesh A. Sekhar

Copyright © 2016 Bronislaw Buczek. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A commercially available activated carbon was used to prepare active carbon via reactivation with KOH at 750°C. Active carbon was obtained with 60.5% yield. The resulting active carbon showed a well-developed porous structure with specific surface area 2939 m2/g, total pore volume 1.488 cm3/g, and micropore volume 1.001 cm3/g. Process reactivation of carbon changes its particle size as well as density properties and increases by nearly twice the amounts of methane and carbon dioxide adsorbed under high pressure conditions. Such active carbon may be used to enrich methane or carbon dioxide by pressure swing adsorption technique. Other possible applications of reactivated carbon are storage of hydrogen and methane and sequestration of carbon dioxide.