Utilization of Waste-Derived Fuels in the Carbonate Looping Process

The economic and environmental threat of climate change due to the anthropogenic rise of the
CO2 concentration in the earth's atmosphere is widely accepted. In addition to the utilization of
renewable energy sources, the application of carbon capture and storage processes in energyintense
industries seems to be unavoidable. This thesis evaluates the utilization of waste-derived
fuels in the calcium looping CO2 capture process. The feasibility of continuous CO2 separation
by means of a waste-derived fuel fired calciner was successfully demonstrated by experimental
investigations in a 1 MWth pilot plant. In these investigations, the boundary conditions were
adapted to an application in Waste-to-Energy plants. Over the course of the test series, it was
shown for the first time worldwide, that CO2 capture rates of more than 90 % are feasible, while
oxyfiring commercially available solid recovered fuels. Based on the experimental data, a
process was validated and subsequently applied for the determination of heat and mass balances
for the retrofit of a Waste-to-Energy plant.