Catalytic Pyrolysis of Volatile Tars Contained in Gaseous Products of Fast Pyrolysis of Agricultural Waste

Abstract

The gases produced by fast pyrolysis method can be used as an alternative to fossil fuels. In order to use gaseous products of flash pyrolysis of carbon-containing biomass wastes effectively there is required its purification from resins. One of the promising ways of such purification is thermocatalytic conversion of tars with the production of volatile hydrocarbons. In current work thermocatalytic treatment of tar-containing gases obtained via biomass waste flash pyrolysis was studied. It was found that the use of zeolite catalysts on the base of iron subgroup metals leads to the decrease of tars content in the gaseous product of biomass fast pyrolysis as well as to the increase in ?1-?4 hydrocarbons, hydrogen and carbon monoxide (II) concentration.