A Process for Capturing CO2 from the Atmosphere
Carbon Engineering (CE) has been developing an aqueous DAC system since 2009. In 2012, we described our air-liquid contactor,23
the front end of the process. Here, in the next section, we provide an end-to-end overview of our baseline DAC system, proceeding from a high-level description of and heat and mass balance down to descriptions of individual unit operations. The following section provides results from a 1 t-CO2/day pilot plant operated since 2015. CE's capital cost estimating process is described in the section on Process Economics along with the levelized cost of capture under various plant configurations and economic assumptions. Finally, the Discussion provides comparison with prior literature and a discussion of options for improving the technology.
