"The mostly pure CO2 can then be sold to oil fields for use in enhanced oil recovery" The CO2 is pumped under ground to force oil out. "In these applications,

"The mostly pure CO2 can then be sold to oil fields for use in enhanced oil recovery" The CO2 is pumped under ground to force oil out. "In these applications, between one-half and two-thirds of the injected CO2 returns with the produced oil and is usually re-injected into the reservoir to minimize operating costs." https://en.wikipedia.org/wiki/Enhanced_oil_recovery#Liquid_carbon_dioxide_superfluids https://en.wikipedia.org/wiki/Enhanced_oil_recovery#Liquid_c... Since this oil will be burned creating more CO2 the total atmospheric CO2 increase is probably greater than just a plain power plant with no capture.