Bio-oil production from fast pyrolysis of corn wastes and eucalyptus wood in a fluidized bed reactor

Fast pyrolysis is an attractive technology for biomass conversion، from which bio-oil is the preferred product with a great potential for use in industry and transport. Corn wastes (cob and stover) and eucalyptus wood are widely being produced throughout the world. In this study، fast pyrolysis of these two materials were examined under the temperature of 500 °C; career gas flow rate of 660 l h-1; particle size of 1-2 mm; 80 and 110 g h-1 of feed rate. The experiments were carried out in a continuous fluidized bed reactor. Pyrolysis vapor was condensed in 3 cooling traps (15، 0 and -40 °C) plus an electrostatic one. Eucalyptus wood was pyrolyised to 12. 4، 61. 4، and 26. 2 percent of bio-char، bio-oil and gas، respectively while these figures were as 20. 15، 49. 9، and 29. 95 for corn wastes. In all experiments، the bio-oil obtained from electrostatic trap was a dark brown and highly viscose liquid.