TY  - JOUR
U1  - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed)
A1  - Clavijo, Leonardo
A1  - Zlatanovic, Slobodan
A1  - Braun, Gerd
A1  - Bongards, Michael
A1  - Dieste, Andrés
A1  - Barbe, Stéphan
T1  - Eucalyptus Kraft Lignin as an Additive Strongly Enhances the Mechanical Resistance of Tree-Leaf Pellets
JF  - Processes
N2  - Pelleted biomass has a low, uniform moisture content and can be handled and stored cheaply and safely. Pellets can be made of industrial waste, food waste, agricultural residues, energy crops, and virgin lumber. Despite their many desirable attributes, they cannot compete with fossil fuel sources because the process of densifying the biomass and the price of the raw materials make pellet production costly. 
Leaves collected from street sweeping are generally discarded in landfills, but they can potentially be valorized as a biofuel if they are pelleted. However, the lignin content in leaves is not high enough to ensure the physical stability of the pellets, so they break easily during storage and transportation. In this study, the use of eucalyptus kraft lignin as an additive in tree-leaf pellet production was studied. Results showed that when 2% lignin is added the abrasion resistance can be increased to an acceptable value. Pellets with added lignin fulfilled all requirements of European standards for certification except for ash content. However, as the raw material has no cost, this method can add value or contribute to financing continued sweeping and is an example of a circular economy scenario.
KW  - Kreislaufwirtschaft
KW  - Eucalyptus kraft lignin
KW  - Tree leaf
KW  - Pellet
KW  - Additive
KW  - Biofuel
KW  - Circular economy
KW  - Pellet
KW  - Blatt
Y1  - 2020
UN  - https://nbn-resolving.org/urn:nbn:de:hbz:832-epub4-15216
SN  - 2227-9717
SS  - 2227-9717
U6  - https://doi.org/10.3390/pr8030376
DO  - https://doi.org/10.3390/pr8030376
VL  - 8
IS  - 3
SP  - 9
S1  - 9
PB  - MDPI
ER  -