Research

Development and characterization of high-temperature CO2 sorbents

Carbon dioxide (CO2) is a representative greenhouse gas and causes serious environmental problems. High-temperature CO2 sorption has been investigated as a new CO2 capture technology because most of the CO2 in flue gases is emitted at high temperatures. For application to high-temperature CO2 sorption, solid sorbents should have a high sorption working capacity with a fast sorption/desorption kinetics and good stability. High-temperature CO2 sorbents can also be used for sorption-enhanced reactions to produce high-purity hydrogen directly. 

(Application/potentials)

• Direct removal of high-temperature CO2 (from flue gases)

• Applying to the sorption-enhanced reaction (SER) processes

Characterization of catalytic-sorbents for CO2 utilization

For net-zero emission, the captured CO2 should be utilized or properly stored. A new type of reactive separation process could be developed by developing novel dual-function materials that can capture CO2 and catalyze hydrolysis and other reactions. The catalytic sorbents can be applied not only to the carbon capture and utilization (CCU) processes but also to the advanced blue hydrogen production system that simultaneously produces high-purity H2 and syngas.

(Application/potentials)

• Control of  the chemical properties of the solid sorbent surface

• Next-generation energy carrier production system