CO2 is captured post combustion directly from industrial emitters through various chemical, cryogenic and other processes, dehydrated, compressed and transported in a super-critical state by pipeline to underground storage sites for permanent sequestration. PSC employs advanced technologies and requires the fabrication and installation of complex infrastructure. Capture efficiency is very high given the significant concentration of CO2 generated in the combustion process and the availability of advanced capture technology methodologies.
Direct Air Capture (DAC)CO2 is captured directly from the atmosphere through various chemical, cryogenic and other processes, dehydrated, compressed and transported by pipeline to storage sites for permanent sequestration. DAC also employs advanced technologies and requires the fabrication and installation of complex infrastructure, either fixed or portable. Capture efficiency is much less than PSC projects given the low levels of CO2 concentration in the atmosphere.