Evaluation of the physiochemical development of biochars obtained from pyrolysis of wheat straw, timothy grass and pinewood: Effects of heating rate.

Highlights: [•] Evaluation of biochar properties from pyrolysis with slow and high heating rates. [•] Biochar yields from pyrolysis with slow heating rate were high for all biomasses. [•] Biochar analyses by CHNS, ICP-MS, SEM, Raman spectroscopy, FT-IR, TG–DTG and XRD. [Copyright &y& Elsevier]