Ultras­challgestützte Biomassever­flüssigung

Ultrasound-protected biomass liquefaction

Processor:	Prof. Dr.-Ing. Michael Beckmann  Dipl.-Ing. Judith Pause
Term:	04/2009 till 08/2009
Initiator:	Industrial partner
Cooperation partner:	Institute for Wood and Paper Technology Institute for Wood and Phytochemistry

Brief description

• During the ultrasound dispersion, coke-particles (from the pyrolysis of biomass) are further crushed in liquid pyrolysis products. This increases the free specific surface and more functional groups – especially the reactive phenolic hydroxyl groups – are available for further manipulation (degradation or synthesis. Therefore, we are talking about an activation of coke particles. The dispersion effect increases by an ultrasound treatment under pressure.
• Application of pyrolysis coke and pyrolysis condensate from wood chips and miscanthus
• US dispersion tests with variation: the US treatment parameter for the mixing ratio of coke/condensate
• Identification of fuel technological properties: elementary analysis, heating value
• Identification of morphologic and chemical properties
• Results/realization:

Fuel technology: currently there are no possibilities for the utilisation as fuels in combustion firing units
Material: the use with respect to the extraction of the raw material for the chemical industry seems possible

Test rigs used / special purchases

• Pyrolysis reactor