1. R3 Water: Energy Efficiency
Marjoleine Weemaes
WWC Brisbane: October 2016

2. Hydrothermal carbonisation?
What is Hydrothermal Carbonisation?
incineration
digestion
thickening
dewatering
Conversion process for biomass
Thickened sludge (20-30% DM)
Pressure + heat (20-25bar, °C)
Acid catalyst
Exothermal process
 Split off HO- -anions and (H+)- cations to water
Advantages:
Increased dewatering efficiency
Production of lignite like biocoal (stablized, hygienized)
Possibility to recover P
HTC

3. Full scale tests Dewaterability 28% DS 65% DS Industrial scale plant:
1,5t DM Biomass (25% DM)
~ 1,0t DM Biocoal (65% DM)
Dewaterability 28% DS % DS
What is the capacity of your full scale (or do you prefer to call it demonstration scale) plant?

4. Conclusion
Hydrothermal carbonisation proved to be efficient to significantly increase dewatering efficiency
Improvement of energy balance in thermal end disposal
Opportunities to recover phosphorus