CO2 Solutions’ carbon capture process shows potential for CO2 capture that may be better than existing conventional capture technologies, according to results of the pilot testing of the process, completed by the company and the University of North Dakota’s Energy & Environmental Research Center (EERC) in January.
In addition, the tests showed CO2 Solutions’ technology requires substantially lower temperatures for regeneration than comparable technologies, which would allow for the use of nil-value low-grade heat (<80°C).
CO2 Solutions uses an enzyme-accelerated process, using its proprietary 1T1 enzyme, which John Kay, EERC senior research manager says has the potential to enable greater adoption of carbon capture for both sequestration and commercial use.
Modeling of CO2 Solutions’ technology indicates that by using this low-grade heat, the effective parasitic load on the emitting power plant can be reduced to only 0.2 GJ/metric ton of CO2 captured. Parasitic load is a measure for the reduction in efficiency of power generation plants as a result of bolt-on carbon capture processes and is the largest operating cost component of these same processes.
The results were based on testing of CO2 Solutions’ enzyme-accelerated process, applied to flue gas from natural gas and coal combustion. The testing involved the use of EERC’s packed column test facility at a scale of approximately 1 metric ton of CO2/day.
Photo Credit: coal power plant via Shutterstock