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1 Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

1 2012

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Chemical composition of lignocellulose materials and porous structure of activated carbons

Babeł Krzysztof, Janasiak Dawid, Waliszewska Bogusława, Prądzyński Włodzimierz

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

2012

No. 77

33-40

Chemical composition of lignocellulose materials and porous structure of activated carbons.Chemical and elemental compositions of selected lignocellulose materials were determined and next a series of activated carbons was produced from these materials under strictlyrepeatable conditions. The chemical activation method (900 o C) using KOH (4:1) was applied for the development ofthe porous structure. Prior to activation all raw materials were subjected to pyrolysis at 700 o C using a slight temperature increase rate (3 o C/min). Produced activated carbons had varied porous structure parameters and considerable BET surface areas ranging from 2026 to 2884 m 2 /g. It was shown that the type of the applied precursor has a significant effect on the development of the porous structure.