Aerodynamic Properties of Biochar Particles: Effect of Grinding and

Dec 23, 2013 - Whereas the aerodynamic particle size distribution (PSD) of PM10 in ... a bimodal PSD is observed for PM10 in the biochars after grindi...
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Letter pubs.acs.org/journal/estlcu

Aerodynamic Properties of Biochar Particles: Effect of Grinding and Implications Xiangpeng Gao and Hongwei Wu* School of Chemical and Petroleum Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia S Supporting Information *

ABSTRACT: This study reports the aerodynamic properties of ground biochar particles produced from the slow pyrolysis of mallee biomass at 400 °C, considering grinding times from 10 s to 16 min. The data show that extensive grinding (e.g., ≥1 min) substantially increases the amounts of particulate matter with an aerodynamic diameter of