Thermocatalytic Refining of Gaseous Products Produced by Fast Pyrolysis of Waste Plant Biomass

Abstract

The disadvantages of most catalysts of gaseous products thermal refining from the tars are their high cost and fast activity loss due to the carbon formed on their surface. So it is necessary to develop cheap and effective catalysts for the thermal refining of pyrolysis gaseous products. Therefore, the study of the fast pyrolysis process including the stage of thermocatalytic refining of pyrolysis gaseous products can help to solve the problems of renewable feedstock processing with the energy generation followed. 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 С1-С4 hydrocarbons, hydrogen and carbon monoxide (II) concentration.