Editing Petra Nova (section)

=== Capture ===
The capture plant treats a slipstream of flue gas from W.A. Parish Unit 8 and is designed to capture about 90% of the CO<sub>2</sub> in that treated slipstream, corresponding to roughly one-third of Unit 8’s overall CO<sub>2</sub> emissions (because only a portion of the unit’s exhaust is routed to capture).<ref name="EIA2017" /><ref name="DOEProjectPage" /> Mitsubishi Heavy Industries (MHI) stated the ordered system had a capture capacity of 4,776 metric tons per day and 90% capture efficiency, using the [[MHI KM CDR|KM CDR Process]] with KS-1 solvent.<ref name="MHI2014" />

Because solvent regeneration is energy-intensive, Petra Nova incorporated a dedicated gas-fired cogeneration facility to supply steam and power to the capture process rather than drawing all energy parasitically from the host coal unit.<ref name="EIA2017" /><ref name="IEAGHG2020">url=https://publications.ieaghg.org/insightpapers/2020-IP11%20DOE%20report%20on%20Petra%20Nova.pdf</ref>