Heo
et al. [34] obtained a maximum bio-oil yield of 50 wt.% at 470 C,
which is similar to that reported by Zheng [53], i.e., 56 wt.% at
465 C. Guo et al. [31] achieved a liquid yield of 47 wt.% at
520 C, but gas yield was 27 wt.%. Studies with other reactor configurations
report similar results [18,54], with lower bio-oil yields
and higher gas yields compared to those obtained in the CSBR. A
high char yield (26 wt.% at 450 C) is usually reported in the literature
due to the high ash content in the RH. Furthermore, the continuous
removal of the char from the reaction environment avoids
its partial devolatilization.