Direct Air Capture – CO2 from ambient air as a raw material for defossilized products

In order to meet global climate targets in time, there is no other solution than the application of carbon removal technologies and thus Direct Air Capturing (DAC) as a key technology. The large-scale deployment of DAC technology will require a relevant investment based on viable business opportunities. A cost efficient removal technology relies on a robust capturing approach. The filter materials are crucial for DAC as they define the boundary conditions for the overall process and have a massive influence on the operating as well as capital expenditures. Therefore, the design of a plant must be accompanied by simulation methods, whereas, depending on the task, the depth of simulation covers several length and time scales. Engine tests of a ReFuel as a desirable CCU-product point out, that an optimal ReFuel contributes to improving consumption and emissions not only due to its sustainable base stock, but also due to its fuel properties. Further improvements could be achieved if the engine management system was prepared by objecting the calibration data for the future use of an optimal ReFuel (to be developed). Only if the global political framework conditions are set, ReFuels as a product could generate a relevant return on investment and thus refinance the scale up of sustainable carbon capture technologies for a closed loop carbon economy. This would open up the urgently needed options to address a solution for unavoidable CO2 emissions on a global way towards a net-zero-society in the upcoming decades.