This article is cited in 1 paper

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

N. A. Yazykov, A. V. Trachuk, Yu. V. Dubinin, A. D. Simonov, V. A. Yakovlev

Boreskov Institute of Catalysis SB RAS, Novosibirsk, 630090, Russia

Abstract: 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.

Keywords: pyrolysis of wood, volatiles, vibro-fluidized bed, catalyst.

UDC: 66.096.5

Received: 09.06.2012

 English version: Combustion, Explosion and Shock Waves, 2013, 49:5, 608–613

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