Journal
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
Volume 109, Issue -, Pages 123-131Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jaap.2014.07.003
Keywords
Activated carbon; Palm kernel shells; Walnut shells; Cashew nut shells; Bio-coke
Funding
- Human Resources Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) - the Korean Government Ministry of Trade, Industry and Energy [20124010203260]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20124010203260] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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To produce activated carbon and bio-coke, palm kernel shells (PKS), walnut shells (WNS) and cashew nut shells (CNS) were carbonized and (or) activated. The activation was conducted using CO2 in a fixed bed reactor. In the activation of PKS, the influence of CO2 flow rate on the surface area development was also examined. Meanwhile, to evaluate the suitability of chars obtained from CNS as metallurgical bio-coke, carbonization was carried out in N-2 at temperatures of 700-800 degrees C. The maximum surface areas of the resultant activated carbons derived from each biomass were about 700-810 m(2)/g, and all the activated carbons had a microporous nature. At a CO2 flow rate of 1 NL/min, the activated carbon obtained from PKS showed the highest surface area of 912 m(2)/g. The char produced from CNS, with its low ash and volatile matter contents and its sufficient compressive strength, demonstrated promising potential as metallurgical bio-coke. (C) 2014 Elsevier B.V. All rights reserved.
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