“Zero” emission processing. This technology complements the process developments occurring in DOE’s Office of Fossil Energy Vision 21 Program by looking for new, closed-loop fuel production/electricity production cycles that involve essentially no pollutant emissions.
Direct flue gas treatment. This area is crucial for application to commercial fossil-fuel combustion processes. There are methods that should be explored, including flue gas biofiltration or advanced CO2 hydrate formation. (Also see Chapter 2, “Advanced Separations Techniques.”)
Removal of CO2 from ambient air. Alternative methods for low-cost, efficient removal of CO2 from the air may be feasible using biofiltration combined with wind-induced airflow through the filter. This area merits exploration as an alternative to biomass production. (Also see Chapter 2, “Advanced Separations Techniques.”)