[Preprint] Wu et al. (2022): Technological Options for Direct Air Capture: A Comparative Process Engineering Review

Xiaowei Wu, Ramanan Krishnamoorti, Praveen Bollini IN: Annual Review of Chemical and Biomolecular Engineering, Vol. 13, review in advance – changes may still occur before final publication, https://doi.org/10.1146/annurev-chembioeng-102121-065047

The authors summarize minimum thermodynamic energy requirements, second law efficiencies, major unit operations and associated energy requirements, capital and operating expenses, and potential alternative process designs. They also highlight process designs applied toward more concentrated sources of CO2 that, if extended to lower concentrations, could help move DAC units closer to more economical continuous operation.