Abstract
Carbon dioxide is the main atmospheric greenhouse gas released from industrial point sources. In order to mitigate adverse environmental effects of these emissions, carbon capture, storage, and utilization are required. To this end, several CO2 capture technologies are being developed for application in carbon capture, including aqueous amines and water-lean solvents. Herein we report new aminopyridine solvents with the potential for CO2 capture from coal-fired power plants. These four solvents, 2-picolylamine, 3-picolylamine, 4-picolylamine, and N′-(pyridin-4-ylmethyl)ethane-1,2-diamine, are liquids that rapidly bind CO2 to form crystalline solids at standard room temperature and pressure. These solvents have displayed high CO2 capture capacity (11-20 wt %) and can be regenerated at temperatures in the range of 120-150°C. The advantage of these primary aminopyridine solvents is that a crystalline salt product can be separated, making it possible to regenerate only the CO2-rich solid and ultimately reduce the energy penalty. (Figure Presented).
Original language | English |
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Pages (from-to) | 7534-7540 |
Number of pages | 7 |
Journal | Industrial and Engineering Chemistry Research |
Volume | 56 |
Issue number | 26 |
DOIs | |
State | Published - Jul 5 2017 |
Externally published | Yes |
Funding
The authors acknowledge the U.S. Department of Energy (DOE), Office of Fossil Energy, for funding this project through NETL FWP-65872 and the Pacific Northwest National Laboratory (PNNL) for facilities. PNNL is proudly operated by Battelle for the U.S. Department of Energy under Contract No. DE-AC05-76RL01830. This contribution was identified by Session Chair William J. Koros (Georgia Institute of Technology) as the Best Presentation in the session, "Novel Materials for Gas Separation, Storage & Utilization," at the 252nd American Chemical Society National Meeting and Exposition in Philadelphia, PA in August 2016.