Preparation and characterization of activated carbon from rubber-seed shell by physical activation with steam

The use of rubber-seed shell as a raw material for the production of activated carbon with physical activation was investigated. The produced activated carbons were characterized by Nitrogen adsorption isotherms, Scanning electron microscope, Thermo-gravimetric and Differential scanning calorimetric...

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Bibliographic Details
Published in:Biomass & bioenergy 2010-04, Vol.34 (4), p.539-544
Main Authors: Sun, Kang, Jiang, Jian chun
Format: Article
Language:English
Subjects:
Activated carbon
Adsorption
Applied sciences
Biomass
Energy
Exact sciences and technology
Hevea brasiliensis
Natural energy
Physical activation
Porosity
Rubber-seed shell
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Summary:The use of rubber-seed shell as a raw material for the production of activated carbon with physical activation was investigated. The produced activated carbons were characterized by Nitrogen adsorption isotherms, Scanning electron microscope, Thermo-gravimetric and Differential scanning calorimetric in order to understand the rubber-seed shell activated carbon. The results showed that rubber-seed shell is a good precursor for activated carbon. The optimal activation condition is: temperature 880 °C, steam flow 6 kg h −1, residence time 60 min. Characteristics of activated carbon with a high yield (30.5%) are: specific surface area (S BET) 948 m 2 g −1, total volume 0.988 m 3 kg −1, iodine number of adsorbent ( q iodine) 1.326 g g −1, amount of methylene blue adsorption of adsorbent ( q mb) 265 mg g −1, hardness 94.7%. It is demonstrated that rubber-seed shell is an attractive source of raw material for producing high capacity activated carbon by physical activation with steam.
ISSN:0961-9534
1873-2909
DOI:10.1016/j.biombioe.2009.12.020