Pyrolysis of wood in vibro-fluidized beds of catalysts and inert materials

Pyrolysis of wood in vibro-fluidized beds of disperse packings of deep oxidation catalysts and inert materials is investigated. It is shown that the properties of the disperse packing material of vibro-fluidized beds do not have a significant effect on the rate and degree of conversion of wood to volatiles. The presence of catalysts in the vibro-fluidized bed leads to an increase in the amount of СО$_2$, СО, Н$_2$, and СН$_4$ in the gas phase compared to the pyrolysis of wood in vibro-fluidized beds of inert materials. The greatest activity in the conversion of volatiles to СО$_2$, СО, Н$_2$, СН$_4$ was found for the catalyst IK-12-73 (Mg$_{0.5}$Cu$_{0.5}$Cr$_2$O$_4$/Al$_2$O$_3$). The accumulation of carbon in IK-12-73 catalyst has little effect on the conversion of volatile substances to gaseous products. The degree of burnout of wood particles under conditions of a vibro-fluidized bed of IK-12-73 catalyst is 99.7%, which is consistent with data on the catalytic combustion of wood in the fluidized bed.