Influence of process variables on chemically activated carbon from pistachio shell with ZnCl2 and KOH

Influence of process variables on chemically activated carbon from pistachio shell with ZnCl2 and... Activated carbons are prepared by chemical activation from pistachio shell with ZnCl2 and KOH. Activation consisted of impregnation of a precursor followed by carbonization in N2 and CO2 at various temperatures, dwell times, heating rates and chemical ratios. Activation with KOH resulted in a lower yield than the ZnCl2. The results suggest KOH as a base is not suitable for preparing high-porosity carbons from pistachio shell. Study of various parameters during activation of pistachio shell with ZnCl2 revealed that the most important variables are concentration and ratio of the chemical agent. The maximum surface areas obtained from the activation with ZnCl2 was 2,024 m2/g. It was found that the yield of all experiments was above 35 % regardless of preparation conditions, and in optimum conditions, it reached 47.4 %. The yield was decreased by increasing temperature and dwell time, but increasing heating rate, ZnCl2 concentration, and chemical ratio, increased the yield. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Influence of process variables on chemically activated carbon from pistachio shell with ZnCl2 and KOH

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Publisher
Springer Netherlands
Copyright
Copyright © 2013 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-013-1169-1
Publisher site
See Article on Publisher Site

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