(531e) Keynote Talk - Positive Power with Negative Emissions: Flexible Ngcc Enabled By Modular Direct Air Capture (DAC)
AIChE Annual Meeting
Wednesday, November 10, 2021 - 4:50pm to 5:25pm
The NGCC plant will include conventional amine scrubbing to remove 97% of the CO2 contained in the flue gas. The amount of DAC will depend on the balance of using steam from the heat recovery steam generation system to make power through the turbine system and its use for regenerating the DAC sorbent. The NGCC plant will also be able to ramp up and down maintaining a minimum load to allow for fast response to pricing signals. Overall this will allow for carbon negative electricity to be produced between 60-100% of the NGCC operating capacity with an additional penalty of 5-20% of the NGCC generating capacity, above that required for conventional capture, depending on how much steam is directed to the DAC plant.