In the current work, three sets of HTC experiments were performed.
Water-to-biomass mass ratios of 6:1 (approximately 50 g
of fuel and 300 ml of water) and 8:1 (approximately 50 g of wood
and 400 ml of water) were tested. Residence times of three and six
hours were used in the experiments. The reaction temperature was
varied in the range of 180–250 ◦C