Removing CO2 from the emissions of fossil-fueled power plants is critical in the fight against global warming. This invention removes CO2 from flue gas of power plants and converts it to carbonate minerals. A strong CO2 capture system can be useful for research laboratories, refineries, and fossil-fueled power plants in mitigating CO2 emissions.
This invention mitigates the emission of harmful pollutants by using a biologically-catalyzed CO2 sequestration system to capture and store CO2 from the flue gas of power plants to prevent it from being released into the atmosphere.
This invention describes a biologically-catalyzed CO2 mineralization process that uses yeast-displayed proteins and peptides. The yeast, Saccaramyces cerevisae, is used to manufacture and immobilize proteins and peptides. A biologically-catalyzed approach makes mineral carbonation economically feasible by combining standard temperature and pressure conditions with the low cost of cell-surface-anchored enzymes and peptides. This can be used to enhance the mineralization rate of CO2 and to control the crystal properties of the mineralized CO2. Carbonate minerals have a significantly lower energy state than CO2 and, at least in theory, the mineralization process can be used to produce energy. This also allows for easy recapture and re-use of the proteins and peptides. This approach provides more exact control over the molecular components in the system, which should aid with system optimization to mineralize the most CO2 possible.
- High storage capacity and long storage lifetime
- Low materials cost
- Can operate in near-standard conditions