Table 3.
Thermal decomposition stages and pyrolysis char yield

	H lignin	P lignin
Thermal decomposition stage	120–200 °C	120–250 °C(Zone D)
	200–400 °C(Zone A)	250–600 °C(Zone E)
	400–500 °C(Zone B)	-
	500–600 °C(Zone C)	-
Pyrolysis char at 700 °C	45.5 wt.%	31.4 wt.%