Membrane Carbonation for 100% Efficient Delivery of Industrial CO2 Gases
- Arizona State Univ., Tempe, AZ (United States); Arizona State University
- Arizona State Univ., Tempe, AZ (United States)
- Sustainability Science LLC, Mesa, AZ (United States)
Industrial processes generate about one quarter of all greenhouse gases emissions in the US, about 80% of which is carbon dioxide (CO2). Biological processes are one of the largest natural sinks for atmospheric CO2, but the rate of capture is limited by the low concentration in air (~0.04%). Industrial emissions have significantly higher CO2 concentrations, ranging from 5–80% CO2, which can significantly increase the rate of biological CO2 capture, including many-fold improvements for cultivating microalgae to produce food, fertilizer, and renewable fuel. However, traditional methods for delivering CO2 to microalgae using bubbling is < 40% efficient, leading to significant residual CO2 emissions and increased cost. This project developed the Membrane Carbonation (MC) technology to significantly improve the CO2 delivery efficiency to microalgae from power plant flue gas, wastewater treatment plant anaerobic digesters biogas (Figure 1), and other CO2-containing industrial sources.
- Research Organization:
- Arizona State Univ., Tempe, AZ (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Bioenergy Technologies Office (BETO)
- DOE Contract Number:
- EE0008517
- OSTI ID:
- 1895136
- Report Number(s):
- DOE-ASU--0008517
- Country of Publication:
- United States
- Language:
- English