Abstract：
:The densification of bio-chars pyrolyzed at different temperatures were investigated to elucidate the effect of temperature on the properties of bio-char pellets and determine the bonding mechanism of pellets. Optimized process conditions were obtained with 128MPa compressive pressure and 35% water addition content. Results showed that both the volume density and compressive strength of bio-char pellets initially decreased and subsequently increased, while the energy consumption increased first and then decreased, with the increase of pyrolysis temperature. The moisture adsorption of bio-char pellets was noticeably lower than raw woody shavings but had elevated than the corresponding char particles. Hydrophilic functional groups, particle size and binder were the main factors that contributed to the cementation of bio-char particles at different temperatures. The result indicated that pyrolysis of woody shavings at 550-650°C and followed by densification was suitable to form bio-char pellets for application as renewable biofuels.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Hu Q,Yang H,Yao D,Zhu D,Wang X,Shao J,Chen Hdoi
10.1016/j.biortech.2015.10.077subject
Has Abstractpub_date
2016-01-01 00:00:00pages
521-7eissn
0960-8524issn
1873-2976pii
S0960-8524(15)01480-7journal_volume
200pub_type
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