Impact of Water-Soluble Substances of Birch Lignocellulose on the Mechanical and Sorption Properties of Granular Activated Carbon
Integrative Approaches towards Sustainability: Conference 2005
Ausma Tardenaka, Baiba Spince, Jānis Rižikovs, Jānis Zandersons, Māris Puķe, Nikolajs Vedernikovs

All characteristic lignocellulose specimens made from birch veneer shorts during prehydrolysis and furfural production were studied as carbonisation starting materials. To elucidate the impact of water-soluble substances of lignocellulose on the potential of pores forming, two parallel samples of lignocellulose were prepared, from which one was leached with water. Cellolignin contained 24.5-27.7% water-soluble substances composed of 6.2-7.5% sulphuric acid, 13.5-16.5% levulinic acid 41-51% reducing substances (sugars) and 26-35% unidentified substances- ash, lignans (maximum in UV spectra at λ = 286.6 nm). It must be noted that the charcoal yield was high from the leached lignocellulose too – up to 42-43% on the oven dry lignocellulose mass basis. Testing of the carbonised granules made from washed lignocellulose demonstrated the same high mechanical strength as in the case of unleached lignocellulose-containing water soluble extractives acting as some kind of binders.


Atslēgas vārdi
Lignocellulose, Carbonization, Activation, Activated carbon

Tardenaka, A., Spince, B., Rižikovs, J., Zandersons, J., Puķe, M., Vedernikovs, N. Impact of Water-Soluble Substances of Birch Lignocellulose on the Mechanical and Sorption Properties of Granular Activated Carbon. No: Integrative Approaches towards Sustainability: Conference, Latvija, Jurmala, 11.-14. maijs, 2005. Jurmala: Latvijas Valsts Koksnes Ķīmijas Institūts, 2005, 68.-68.lpp.

Publikācijas valoda
English (en)
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