Modified Grey Alder Wood – an Excellent Raw Material for Production of High Density and Strength Activated Carbon

Proceedings of the 5th European Conference on Wood Modification 2010
Jānis Rižikovs, Jānis Zandersons

Biomass is currently a promising renewable and potentially neutral raw material in relation to global warming. Modified and pelletized fast-growing grey alder (Alnus incana) wood was used as precursor for activated carbon preparation by physical activation with superheated steam under a self-generated atmosphere. The impact of the relative moisture content before pelletization in the range 4-12% on the mechanical properties of pellets and on the developed porous structure of the obtained carbons were studied for 90 min of activation time at the 850oC of temperature. Modified grey alder wood was treated for 2 h at 180oC and obtained pellets mechanical properties as well as surface properties of the activated carbons were dependent on a combined effect of the conditions employed. As optimal carbonization temperature selected 600oC, because the prepared activated carbons characterize with the highest bulk density, yield and micropore content from the total pore volume.

Atslēgas vārdi
activated carbon, carbonization, hydrothermal pretreatment, lignocellulosic sources, pelletization.

Rižikovs, J., Zandersons, J. Modified Grey Alder Wood – an Excellent Raw Material for Production of High Density and Strength Activated Carbon. No: Proceedings of the 5th European Conference on Wood Modification, Latvija, Riga, 20.-21. septembris, 2010. Riga: Latvian State Institute of Wood Chemistry, 2010, 217.-220.lpp. ISBN 978-9984-49-135-6.

Publikācijas valoda
English (en)