In a biogas scenario, a Biobattery installation seeks to use peaks in energy supply to add to the energy output from a biogas installation and enable the thermochemical transformation of the more recalcitrant lignin based components of digestion feedstocks. The use of digestate solids as feedstock for intermediate pyrolysis means that the amount of digestate for application to land is reduced to the liquid fraction. This is desirable where there is an oversupply of nitrogenous materials for application to land such as in areas of intensive livestock production, since digestates can be a source of both greenhouse gas emissions and nitrogen losses to water bodies. Hence, the Biobattery not only adds to the flexibility of energy supply and storage, it also increases the energy and financial gain achieved from existing biogas infrastructure, while reducing their environmental impact.
The Biobattery concept aims to deliver local integrated system solutions, to capture peaks in available power from solar and wind sources and converting and storing this power over periods of varying durations (minutes to days), thereby enabling the delivery of on-demand power compensation. The Biobattery concept uses a pool of renewable energy technologies, i.e. high and low temperature thermal storage systems, thermochemical biomass processes, e.g. intermediate pyrolysis and gasification, thereby delivering solid, liquid and gaseous energy products which can be stored and used to produce either energy on an on-demand basis, or sold as products for other use.
- Development of pyrolysis reactors
- Understanding of pyrolysis processes from micro scale to technical application
- Catalytic treatment of pyrolysis gases
- Combined pyrolysis/gasification
- Numerical simulation of thermo-chemical processes
- Design and operation of micro, lab, pilot and technical scale pyrolysis plants, pyrolysis/gasification/CHP
- Thermal degradation of polymers, electronic scrap and biomass
- Separation of high value fractions from biomass – activated carbon, premium fuels
- Catalytic and sorptive gas treatment for pyrolysis gases and gases from gasifiers
- The Biobattery - Thermo Catalytic Reforming TCR®