Table 2. Composition of Gaseous Products in HTL Biocrude Hydrotreating Experiments.

composition (vol %)	first stage	second stage	second stage
	T = 250 °C	T = 250 and 350 °C	T = 250 and 400 °C
Normalized
H2	94.7	66.7	45.6
CH4	2.3	18.3	32.3
C2H6	0.7	5.9	9.3
C3H8	0.3	2.3	4.0
C4H10	0.4	1.5	1.6
C5H12	0.1	0.2	0.3
CO	0.0	0.0	0.4
CO2	1.6	5.0	6.4
total	100.0	100.0	100.0
Normalized H2-Free
CH4	42.6	55.0	59.5
C2H6	12.5	17.8	17.1
C3H8	5.0	6.8	7.4
C4H10	7.9	4.6	2.9
C5H12	2.1	0.7	0.6
CO	0.0	0.0	0.7
CO2	29.9	15.1	11.8
total	100.0	100.0	100.0