Biochar fracture resistance

Conference Dates

August 20-25, 2017


Biochar is a brittle material that tends to break under mechanical stress. This could be an advantage if it is intended to obtain a char powder, but it is typically unwanted since it generates dust that induce biochar losses or even explosion risk. Mechanical stresses are typically observed inside pyrolysis reactors (Scala et al., 2006), during transport/storage and finally inside the soil (Spokas et al., 2014). There are few data in the literature regarding the mechanical strength of char (Capon et al., 1980). This study aims at assessing the impact of pyrolysis temperature and biomass species on fracture resistance.

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