Catalytic pyrolysis of lignocellulosic biomass for bio oil production
The energy demand in the world is increasing due to an increase in the prosperity around the world. At the same time the commonly used fossil fuel resources are limited and rapidly decreasing. To overcome future energy problems new methods are developed. Pyrolysis of biomass is a promising method for the production of future liquid fuels. The pyrolysis process is widely investigated to overcome the problems of acidity, low energy density and high viscosity of the oil. At this moment the research focusses on in-situ catalytic processes. The alkali metals are known for their catalytic properties in pyrolysis processes.
This research is focused on calcium oxide as catalyst for the upgrading process. This material has next to the catalytic activity the property to adsorb carbon dioxide. The adsorption initiates a water gas shift which produces hydrogen which could be used for further upgrading of the oil vapours.
The three-step pyrolysis process is tested in an experimental fluidized bed setup. First the catalytic activity of the calcium oxide as catalyst is determined. Secondly the influence of the water gas shift reaction on the pyrolysis process is determined and the hydrogen production is measured. With a hydrogenating catalyst is tried to further upgrade the pyrolysis vapours.
The results of this research will be presented during the colloquium and a perspective on the feasibility of this new pyrolysis processes will be presented.