Table 1: Biomass feedstock products of different types of pyrolysis.

ProcessLiquid (biooil)
Solid (BC)
Gas (syngas)

Fast pyrolysis: moderate temperature (600°C), short hot vapour residence time 75 1213
Intermediate pyrolysis: low moderate temperature, moderate hot vapour residence time502525
Slow pyrolysis: low moderate temperature, long residence time303535
Gasification: high temperature (>700°C), long vapour residence time51085
Hydrothermal carbonization: elevated temperature (200–250°C) and elevated pressure.NRANRANRA
Flash carbonization: (350–650°C), residence time below 30 minutes, at elevated pressure (1–3 MPa)NRA5050

NAR = not readily available.